Energy and Indoor Air Quality Impacts of DOAS Retrofits in Small Commercial B...RDH Building Science
Heating, ventilating and air-conditioning (HVAC) typically accounts for 30% to 50% of commercial building energy use. Small commercial buildings often use oversized and inefficient rooftop air handling units (RTUs) to provide both air conditioning and ventilation. A conversion strategy to reduce energy
consumption is the installation of a very high efficiency dedicated outdoor air system (DOAS) to provide ventilation with a separate heat pump system to provide heating and cooling. Decoupling the heating and cooling from ventilation allows for improved energy efficiency and control of space conditions. Upgrades to mechanical systems can also improve the indoor air quality (IAQ) and comfort through control of carbon dioxide (CO2) concentrations, dry bulb temperature, and relative humidity (RH).
A pilot study of eight buildings was conducted to investigate the potential benefits of replacing existing RTUs with high efficiency heat recovery ventilators (HRVs) and air source heat pumps in the Pacific Northwest. This report contains results for a subset of seven buildings for which data is available. The
building energy use before and after the conversion was determined using utility data, energy modeling and monitoring. Indoor environmental conditions were measured at hourly intervals for up to one year postconversion using CO2, temperature, and RH sensors. The data was analyzed to determine changes in energy use and IAQ before and after the conversion.
This paper presents the pilot building results pre- and post-conversion. While several factors need to be in place to ensure optimal performance and cost effectiveness, the pilot shows that replacing RTUs with DOAS systems in existing commercial buildings can both reduce energy use as well as improve indoor environmental conditions. This conversion type is viable for a wide variety of building types and scale-up of the retrofits has the potential to significantly improve a previously underserved segment of the building stock.
Presented by James Montgomery at the 15th Canadian Conference on Building Science and Technology.
Energy Simulation of High-Rise Residential Buildings: Lessons LearnedRDH Building Science
This presentation covers lessons learned from an energy study of over 60 architecturally representative mid to high rise multi-unit residential buildings (MURBS) in BC.
Developing an Open Source Hourly Building Energy Modelling Software ToolRDH Building Science
Energy modelling is an important tool in the design of low energy buildings. It helps evaluate energy savings of various energy efficiency measures and can predict total building energy consumption.
The document provides an overview of a house calls program that aims to educate homeowners about green home improvements and energy efficiency. It discusses key topics like building envelope issues, heating and hot water systems, mechanical ventilation, lighting and appliances, water conservation, and indoor air quality. Examples of low-cost energy saving opportunities are also presented, such as installing insulation, weatherstripping, programmable thermostats, and energy efficient appliances.
The document summarizes a study that tested advanced load monitoring controllers on hydronic boiler systems in multifamily buildings in Chicago to reduce cycling and save energy. The controllers monitored supply water temperatures and prevented boilers from firing for up to 15 minutes during low load conditions. Testing found energy savings of up to 14% during shoulder months for a building with boilers cycling over 100 times per day, while a building with fewer cycles saw 7% savings. Savings depend on how oversized boilers are for their loads and are greater in shoulder seasons when cycling rates are higher. The controllers can be easily installed and provide savings without affecting tenant comfort, but the level of savings varies by system and proper prediction requires knowledge of cycling rates and equipment sizing
Conventional Roofing Assemblies: Measuring the Thermal Benefits of Light to D...RDH Building Science
Presentation Overview:
• Conventional Roofing Designs
and Current Issues
• Conventional Roofing Field
Monitoring and Research
Program
• Measured Insulation Performance
• Selecting Roofing Membrane
Color and Insulation Strategy for
Optimum Energy Efficiency
• Case Studies
Energy Consumption in Low-Rise Wood Frame Multi-Unit Residential BuildingsRDH Building Science
A study was performed to understand the energy consumption in low-rise wood-frame multi-unit residential buildings (MURBs) and townhouse buildings in south-west British Columbia. Low-rise MURBs are an important building type as they make up a growing proportion of housing stock in cities across North
America.
Through this study, energy data was collected from electricity and gas utilities for 20 low-rise buildings (four storeys and less) and three townhouse complexes. This data was calendarized and weather normalized to determine average annual and monthly energy consumption for analysis and comparison. Two buildings were chosen from the data set for detailed analysis, one low-rise (four-storey) and one townhouse complex. The buildings were selected based on characteristics typical of low-rise MURBs in south-west BC. The purpose of the detailed analysis was to assess opportunities to improve the energy efficiency and reduce carbon emissions in existing low-rise MURBs using whole building energy modelling.
This paper details the energy consumption trends observed through the data analysis, and the energy modelling results of the buildings chosen for detailed study. These results are also compared to results from a similar study which evaluated the energy use in mid- to high-rise non-combustible MURBs. The work presented here will improve our understanding of energy consumption in low-rise MURBs, and characterize opportunities for energy savings in these buildings.
Presented by Elyse Henderson at the 15th Canadian Conference on Building Science and Technology
Energy and Indoor Air Quality Impacts of DOAS Retrofits in Small Commercial B...RDH Building Science
Heating, ventilating and air-conditioning (HVAC) typically accounts for 30% to 50% of commercial building energy use. Small commercial buildings often use oversized and inefficient rooftop air handling units (RTUs) to provide both air conditioning and ventilation. A conversion strategy to reduce energy
consumption is the installation of a very high efficiency dedicated outdoor air system (DOAS) to provide ventilation with a separate heat pump system to provide heating and cooling. Decoupling the heating and cooling from ventilation allows for improved energy efficiency and control of space conditions. Upgrades to mechanical systems can also improve the indoor air quality (IAQ) and comfort through control of carbon dioxide (CO2) concentrations, dry bulb temperature, and relative humidity (RH).
A pilot study of eight buildings was conducted to investigate the potential benefits of replacing existing RTUs with high efficiency heat recovery ventilators (HRVs) and air source heat pumps in the Pacific Northwest. This report contains results for a subset of seven buildings for which data is available. The
building energy use before and after the conversion was determined using utility data, energy modeling and monitoring. Indoor environmental conditions were measured at hourly intervals for up to one year postconversion using CO2, temperature, and RH sensors. The data was analyzed to determine changes in energy use and IAQ before and after the conversion.
This paper presents the pilot building results pre- and post-conversion. While several factors need to be in place to ensure optimal performance and cost effectiveness, the pilot shows that replacing RTUs with DOAS systems in existing commercial buildings can both reduce energy use as well as improve indoor environmental conditions. This conversion type is viable for a wide variety of building types and scale-up of the retrofits has the potential to significantly improve a previously underserved segment of the building stock.
Presented by James Montgomery at the 15th Canadian Conference on Building Science and Technology.
Energy Simulation of High-Rise Residential Buildings: Lessons LearnedRDH Building Science
This presentation covers lessons learned from an energy study of over 60 architecturally representative mid to high rise multi-unit residential buildings (MURBS) in BC.
Developing an Open Source Hourly Building Energy Modelling Software ToolRDH Building Science
Energy modelling is an important tool in the design of low energy buildings. It helps evaluate energy savings of various energy efficiency measures and can predict total building energy consumption.
The document provides an overview of a house calls program that aims to educate homeowners about green home improvements and energy efficiency. It discusses key topics like building envelope issues, heating and hot water systems, mechanical ventilation, lighting and appliances, water conservation, and indoor air quality. Examples of low-cost energy saving opportunities are also presented, such as installing insulation, weatherstripping, programmable thermostats, and energy efficient appliances.
The document summarizes a study that tested advanced load monitoring controllers on hydronic boiler systems in multifamily buildings in Chicago to reduce cycling and save energy. The controllers monitored supply water temperatures and prevented boilers from firing for up to 15 minutes during low load conditions. Testing found energy savings of up to 14% during shoulder months for a building with boilers cycling over 100 times per day, while a building with fewer cycles saw 7% savings. Savings depend on how oversized boilers are for their loads and are greater in shoulder seasons when cycling rates are higher. The controllers can be easily installed and provide savings without affecting tenant comfort, but the level of savings varies by system and proper prediction requires knowledge of cycling rates and equipment sizing
Conventional Roofing Assemblies: Measuring the Thermal Benefits of Light to D...RDH Building Science
Presentation Overview:
• Conventional Roofing Designs
and Current Issues
• Conventional Roofing Field
Monitoring and Research
Program
• Measured Insulation Performance
• Selecting Roofing Membrane
Color and Insulation Strategy for
Optimum Energy Efficiency
• Case Studies
Energy Consumption in Low-Rise Wood Frame Multi-Unit Residential BuildingsRDH Building Science
A study was performed to understand the energy consumption in low-rise wood-frame multi-unit residential buildings (MURBs) and townhouse buildings in south-west British Columbia. Low-rise MURBs are an important building type as they make up a growing proportion of housing stock in cities across North
America.
Through this study, energy data was collected from electricity and gas utilities for 20 low-rise buildings (four storeys and less) and three townhouse complexes. This data was calendarized and weather normalized to determine average annual and monthly energy consumption for analysis and comparison. Two buildings were chosen from the data set for detailed analysis, one low-rise (four-storey) and one townhouse complex. The buildings were selected based on characteristics typical of low-rise MURBs in south-west BC. The purpose of the detailed analysis was to assess opportunities to improve the energy efficiency and reduce carbon emissions in existing low-rise MURBs using whole building energy modelling.
This paper details the energy consumption trends observed through the data analysis, and the energy modelling results of the buildings chosen for detailed study. These results are also compared to results from a similar study which evaluated the energy use in mid- to high-rise non-combustible MURBs. The work presented here will improve our understanding of energy consumption in low-rise MURBs, and characterize opportunities for energy savings in these buildings.
Presented by Elyse Henderson at the 15th Canadian Conference on Building Science and Technology
Energy Consumption in Mid to High-rise Residential Buildings both Before and ...RDH Building Science
This document analyzes energy consumption data from six mid- to high-rise residential buildings before and after enclosure rehabilitation. It found that while enclosure retrofits improved building enclosures, they did not necessarily reduce total energy use, as service systems had a greater influence on energy consumption. On average, the buildings saw a 4.8% reduction in total energy use after rehabilitation, but results varied, with savings of up to 16.8% in one building and increased usage of 13.8% in another. The study concluded that energy improvements require coordinated efforts between enclosure and service system engineers.
Plymouth Canton Community Schools, Alternative Energy programsDamian Farrell
Plymouth-Canton Community Schools is going green by analyzing energy inefficiencies and solutions at Plymouth High School. The gymnasium gets too hot with no airflow and expensive lighting, but pre-cooling it with night air and using well water for additional cooling could reduce interior temperatures. Covered walkways between schools could provide protection from weather while generating solar and wind power. An energy audit software will analyze building performance and energy cost scenarios to determine where to invest for the highest returns.
Net Zero heating system. 3700 sq ft two story with full basementGreg Mulder
This document discusses steps to make a building net zero and maximize LEED points through energy efficiency improvements. It outlines analyzing shell efficiency, HVAC systems, appliances, lighting and solar to determine energy needs. Integrating these steps can achieve many LEED points through energy reduction and on-site renewable energy. Specific upgrades discussed include high-efficiency insulation, windows, fans, lighting, heat pumps and a standardized solar system.
Improvements in building efficiency can significantly reduce carbon emissions and are an intrinsic component in greenhouse gas reduction targets. The Passive House concept provides a framework for high-performance building that is growing in popularity in Canada, and particularly in the Pacific Northwest. The Passive House standard requires its buildings to achieve specific performance values for heating energy use intensity, total energy use intensity, spatial temperature variation, heat recovery ventilation performance and air leakage rate. The promised co-benefits of Passive Houses include superior thermal comfort and indoor air quality.
Passive House design is not prescriptive and can incorporate many different design aspects. The wall assembly is no exception. This paper evaluates the hygrothermal performance of a deep-stud wall assembly of a Passive House in Victoria, BC, with regards to moisture durability. The concern with deep or doublestud wall assemblies is the combined effects of reduced drying with wall configurations that place moisture sensitive materials in riskier locations. Consequently, enclosure monitoring was undertaken in an occupied six-plex over the period of one year.
The enclosure monitoring sensor packages were installed in strategic locations in the wall assembly to monitor the conditions of the assembly. The assemblies were evaluated based on the results of an empirical mold risk index. The wall assembly appears to perform acceptably, with minor concerns of mold growth on the North wall. Air leakage is a significant concern for cavity insulated walls, but the airtightness requirements of Passive house minimize this risk.
Presented at the 15th Canadian Conference on Building Science and Technology.
The document discusses India's Energy Conservation Building Code (ECBC). It was enacted by the Government of India in 2001 to provide energy efficiency in building design and construction. The ECBC provides minimum requirements for building envelopes, lighting, HVAC systems and other components to significantly reduce energy usage. Compliance with the ECBC can save 30-60% of electricity usage in commercial buildings. While currently voluntary, states can make compliance mandatory for large commercial buildings. The document outlines the various provisions of the ECBC regarding building envelopes, lighting, HVAC and other systems.
This document summarizes a study of the performance of a corridor pressurization ventilation system in a 13-story residential building in Vancouver. Measurements found significant variations in ventilation rates between suites, with most under or over-ventilated. The study found that only 8% of intended ventilation air actually reaches the suites, with significant leakage along the ventilation path. Stack effects and wind pressures were also found to influence ventilation rates and overwhelm the mechanical pressures at times. The document recommends direct ventilation of suites and improved compartmentalization of spaces to limit natural pressures and better control ventilation.
Rock Valley College - Chilled Beams Lesson LearnedIllinois ASHRAE
Chilled beams lessons learned from Rock Valley College presented at the Illinois Chapter of ASHRAE February 8, 2011 by Dan Comperchio, PE and Adam McMillen, PE of KJWW Engineering Consultants.
Building Enclosures of the Future - Building Tomorrow's Buildings TodayRDH Building Science
- Trends and Drivers for Improved Building Enclosures & Whole Building Energy Efficiency
- New BCBC & VBBL Building & Energy Code Updates
- Effective R-values & Insulation Behaviour
- Highly Insulated Walls – Alternate Assemblies & New Cladding Attachment Strategies
- Highly Insulated Low-Slope Roofs – Insulation Strategies & New Research into Conventional Roofs
Ventilation in Multi-Family Buildings - Summer Camp 2015Lorne Ricketts
This document summarizes a case study on ventilation in a 13-story multi-family building in Vancouver, Canada. Testing found significant variations in ventilation rates between suites, with most under or over-ventilated. It also found higher CO2 levels in lower suites. The study determined the main causes were: duct and corridor leakage reducing airflow to suites by over 90%, and stack effect pressures competing with the mechanical system. The findings suggest natural pressures like stack effect can overwhelm mechanical ventilation in multi-family buildings, particularly in more extreme climates or taller buildings.
The document discusses energy auditing and the tools used to conduct energy audits. It describes how energy audits identify opportunities to save energy and money through operational and equipment changes. A variety of tools are used in energy audits, including tape measures, light meters, thermometers, infrared cameras, voltmeters, clamp-on ammeters, wattmeters, combustion analyzers, airflow measurement devices, and vibration analysis equipment. The goal of an energy audit is to evaluate how a facility uses energy and identify cost-effective ways to reduce consumption and utility costs.
Optimization of Energy Efficiency and Conservation in Green Building Design U...Totok R Biyanto
The development of green building has been growing in terms of both design and quality. The development of green building bariered by the issue of expensive investment. Actually, green building can reduce energy usage in the building especially in utilization of cooling system. External load plays as major role of reduction in the use of the cooling system. External load is affected by type of wall sheathing, glass and roof. The proper selection of wall, type of glass and roof material are very important to reduce external load. Hence, the optimization of energy efficiency and conservation in green building design is required. Since this optimization consist of integer and non-linear equations, this problem fall into Mixed-Integer-Non-Linear-Programming (MINLP) that required global optimization technique such as stochastic optimization algorithms. In this paper the optimized variables i.e. type of glass and roof were chosen using Duelist, Killer-Whale and Rain-Water Algorithms to obtain the optimum energy and considering the minimal investment. The optimization results exhibited the single glass Planibel-G with the 3.2 mm thickness and glasswool insulation provided maximum ROI of 36.8486%, EUI reduction of 54 kWh/m2·year, CO2 emission reduction of 486.8971 tons/year and reduce investment of 4,078,905,465 IDR.
Energy efficient construction and training practices - 9 The renovations and ...Motiva
Energy efficient construction and training practices - 9 The renovations and service of utility
Material is primarily intended for further-education purposes for professional workers. Material can be used in teaching in classroom or self-study.
Teachers and students can use the power point material as a whole or they can pick up the most useful parts.
Including: HVAC maintenance and energy efficient renovations.
Co-funded by the intelligent Energy Europe Programme of the European Union. The sole responsibility for the content of this publication lies with the authors. It does not necessarily reflect the opinion of the European Union. Neither the EASME nor the European Commission are responsible for any use that may be made of the information contained therein.
The good practices and principles required for the energy efficient building have been included in the teaching material. The writers are not responsible for their suitability to individual building projects as such. The individual building projects have to be made according to the building design of the targets in question.
The document discusses ENERGY STAR Qualified Homes Version 3, which defines rigorous energy efficiency specifications for new homes. Version 3 is intended to make existing homes obsolete by requiring complete thermal enclosure, HVAC, and water management systems that provide affordable, comfortable, healthy and durable homes. It establishes both prescriptive and performance paths to comply, with requirements for efficient equipment, tight construction, and third-party verification.
This document describes HeatSmart Tompkins, a program that promotes home energy efficiency improvements and adoption of heat pumps in Tompkins County, NY. The program aims to facilitate over 100 homes switching from fossil fuels to heat pumps and insulation in its first year. It establishes partnerships with local installers to provide homeowners with energy assessments, proposals for insulation and heat pump installations, and below-market pricing. The program also helps participants access available incentives and financing to reduce the upfront costs of projects. Two case studies are presented showing potential savings from switching to heat pumps and insulation from propane heating.
Energy efficient buildings (EEB) aim to reduce climate impact and energy costs by encouraging efficient energy and resource use in construction. As infrastructure grows with a looming energy crisis, EEB promotes good practices like reducing heating/cooling demands through insulation, shading, and efficient systems. Key energy efficiency measures for buildings include limiting exposed areas, improving insulation, using natural ventilation, maximizing daylighting, installing efficient lighting and water heating controls, and recovering heat from hot water pipes.
Gig Harbor High School Promotional SheetLinda Burman
The Gig Harbor High School in Gig Harbor, Washington underwent $4.4 million in HVAC improvements over the summer of 2005 to address aging systems and indoor air quality concerns. The project included replacing boilers, chillers, pumps, piping, and VAV boxes as well as two new rooftop units and heat recovery units at various locations. Ductwork and piping were also replaced throughout the building. Electrical systems were upgraded including the fire alarm. The work was completed mostly over the summer break to minimize disruption.
The document provides guidelines on how to conduct an energy audit for commercial buildings in Hong Kong. It outlines the general process, which includes defining the audit scope and objectives, forming an audit team, collecting building information through surveys and records, analyzing the data, identifying energy management opportunities (EMOs), and writing an energy audit report. The guidelines classify EMOs into three categories based on their capital costs and complexity of implementation. It emphasizes the importance of gaining support from building management and cooperation from operation and maintenance personnel. The guidelines also discuss follow-up actions like implementing EMOs and conducting training.
The document analyzes energy efficiency opportunities in the Herberger administration building. It estimates that the building consumes 12-14% of the total metered energy based on its size and functions. Lighting makes up almost half of energy usage. Converting remaining lights to more efficient T8 bulbs and adjusting lighting schedules could save over 2.5% on the annual energy bill. Appliances like computers and copiers already meet standards while optimization of vending machines could save over $600 annually. Replacing aging chillers qualifies for large tax credits and would improve efficiency over twice as the current system. Commissioning the HVAC system could ensure proper functioning and calibration for improved performance.
Energy Consumption in Mid to High-rise Residential Buildings both Before and ...RDH Building Science
This document analyzes energy consumption data from six mid- to high-rise residential buildings before and after enclosure rehabilitation. It found that while enclosure retrofits improved building enclosures, they did not necessarily reduce total energy use, as service systems had a greater influence on energy consumption. On average, the buildings saw a 4.8% reduction in total energy use after rehabilitation, but results varied, with savings of up to 16.8% in one building and increased usage of 13.8% in another. The study concluded that energy improvements require coordinated efforts between enclosure and service system engineers.
Plymouth Canton Community Schools, Alternative Energy programsDamian Farrell
Plymouth-Canton Community Schools is going green by analyzing energy inefficiencies and solutions at Plymouth High School. The gymnasium gets too hot with no airflow and expensive lighting, but pre-cooling it with night air and using well water for additional cooling could reduce interior temperatures. Covered walkways between schools could provide protection from weather while generating solar and wind power. An energy audit software will analyze building performance and energy cost scenarios to determine where to invest for the highest returns.
Net Zero heating system. 3700 sq ft two story with full basementGreg Mulder
This document discusses steps to make a building net zero and maximize LEED points through energy efficiency improvements. It outlines analyzing shell efficiency, HVAC systems, appliances, lighting and solar to determine energy needs. Integrating these steps can achieve many LEED points through energy reduction and on-site renewable energy. Specific upgrades discussed include high-efficiency insulation, windows, fans, lighting, heat pumps and a standardized solar system.
Improvements in building efficiency can significantly reduce carbon emissions and are an intrinsic component in greenhouse gas reduction targets. The Passive House concept provides a framework for high-performance building that is growing in popularity in Canada, and particularly in the Pacific Northwest. The Passive House standard requires its buildings to achieve specific performance values for heating energy use intensity, total energy use intensity, spatial temperature variation, heat recovery ventilation performance and air leakage rate. The promised co-benefits of Passive Houses include superior thermal comfort and indoor air quality.
Passive House design is not prescriptive and can incorporate many different design aspects. The wall assembly is no exception. This paper evaluates the hygrothermal performance of a deep-stud wall assembly of a Passive House in Victoria, BC, with regards to moisture durability. The concern with deep or doublestud wall assemblies is the combined effects of reduced drying with wall configurations that place moisture sensitive materials in riskier locations. Consequently, enclosure monitoring was undertaken in an occupied six-plex over the period of one year.
The enclosure monitoring sensor packages were installed in strategic locations in the wall assembly to monitor the conditions of the assembly. The assemblies were evaluated based on the results of an empirical mold risk index. The wall assembly appears to perform acceptably, with minor concerns of mold growth on the North wall. Air leakage is a significant concern for cavity insulated walls, but the airtightness requirements of Passive house minimize this risk.
Presented at the 15th Canadian Conference on Building Science and Technology.
The document discusses India's Energy Conservation Building Code (ECBC). It was enacted by the Government of India in 2001 to provide energy efficiency in building design and construction. The ECBC provides minimum requirements for building envelopes, lighting, HVAC systems and other components to significantly reduce energy usage. Compliance with the ECBC can save 30-60% of electricity usage in commercial buildings. While currently voluntary, states can make compliance mandatory for large commercial buildings. The document outlines the various provisions of the ECBC regarding building envelopes, lighting, HVAC and other systems.
This document summarizes a study of the performance of a corridor pressurization ventilation system in a 13-story residential building in Vancouver. Measurements found significant variations in ventilation rates between suites, with most under or over-ventilated. The study found that only 8% of intended ventilation air actually reaches the suites, with significant leakage along the ventilation path. Stack effects and wind pressures were also found to influence ventilation rates and overwhelm the mechanical pressures at times. The document recommends direct ventilation of suites and improved compartmentalization of spaces to limit natural pressures and better control ventilation.
Rock Valley College - Chilled Beams Lesson LearnedIllinois ASHRAE
Chilled beams lessons learned from Rock Valley College presented at the Illinois Chapter of ASHRAE February 8, 2011 by Dan Comperchio, PE and Adam McMillen, PE of KJWW Engineering Consultants.
Building Enclosures of the Future - Building Tomorrow's Buildings TodayRDH Building Science
- Trends and Drivers for Improved Building Enclosures & Whole Building Energy Efficiency
- New BCBC & VBBL Building & Energy Code Updates
- Effective R-values & Insulation Behaviour
- Highly Insulated Walls – Alternate Assemblies & New Cladding Attachment Strategies
- Highly Insulated Low-Slope Roofs – Insulation Strategies & New Research into Conventional Roofs
Ventilation in Multi-Family Buildings - Summer Camp 2015Lorne Ricketts
This document summarizes a case study on ventilation in a 13-story multi-family building in Vancouver, Canada. Testing found significant variations in ventilation rates between suites, with most under or over-ventilated. It also found higher CO2 levels in lower suites. The study determined the main causes were: duct and corridor leakage reducing airflow to suites by over 90%, and stack effect pressures competing with the mechanical system. The findings suggest natural pressures like stack effect can overwhelm mechanical ventilation in multi-family buildings, particularly in more extreme climates or taller buildings.
The document discusses energy auditing and the tools used to conduct energy audits. It describes how energy audits identify opportunities to save energy and money through operational and equipment changes. A variety of tools are used in energy audits, including tape measures, light meters, thermometers, infrared cameras, voltmeters, clamp-on ammeters, wattmeters, combustion analyzers, airflow measurement devices, and vibration analysis equipment. The goal of an energy audit is to evaluate how a facility uses energy and identify cost-effective ways to reduce consumption and utility costs.
Optimization of Energy Efficiency and Conservation in Green Building Design U...Totok R Biyanto
The development of green building has been growing in terms of both design and quality. The development of green building bariered by the issue of expensive investment. Actually, green building can reduce energy usage in the building especially in utilization of cooling system. External load plays as major role of reduction in the use of the cooling system. External load is affected by type of wall sheathing, glass and roof. The proper selection of wall, type of glass and roof material are very important to reduce external load. Hence, the optimization of energy efficiency and conservation in green building design is required. Since this optimization consist of integer and non-linear equations, this problem fall into Mixed-Integer-Non-Linear-Programming (MINLP) that required global optimization technique such as stochastic optimization algorithms. In this paper the optimized variables i.e. type of glass and roof were chosen using Duelist, Killer-Whale and Rain-Water Algorithms to obtain the optimum energy and considering the minimal investment. The optimization results exhibited the single glass Planibel-G with the 3.2 mm thickness and glasswool insulation provided maximum ROI of 36.8486%, EUI reduction of 54 kWh/m2·year, CO2 emission reduction of 486.8971 tons/year and reduce investment of 4,078,905,465 IDR.
Energy efficient construction and training practices - 9 The renovations and ...Motiva
Energy efficient construction and training practices - 9 The renovations and service of utility
Material is primarily intended for further-education purposes for professional workers. Material can be used in teaching in classroom or self-study.
Teachers and students can use the power point material as a whole or they can pick up the most useful parts.
Including: HVAC maintenance and energy efficient renovations.
Co-funded by the intelligent Energy Europe Programme of the European Union. The sole responsibility for the content of this publication lies with the authors. It does not necessarily reflect the opinion of the European Union. Neither the EASME nor the European Commission are responsible for any use that may be made of the information contained therein.
The good practices and principles required for the energy efficient building have been included in the teaching material. The writers are not responsible for their suitability to individual building projects as such. The individual building projects have to be made according to the building design of the targets in question.
The document discusses ENERGY STAR Qualified Homes Version 3, which defines rigorous energy efficiency specifications for new homes. Version 3 is intended to make existing homes obsolete by requiring complete thermal enclosure, HVAC, and water management systems that provide affordable, comfortable, healthy and durable homes. It establishes both prescriptive and performance paths to comply, with requirements for efficient equipment, tight construction, and third-party verification.
This document describes HeatSmart Tompkins, a program that promotes home energy efficiency improvements and adoption of heat pumps in Tompkins County, NY. The program aims to facilitate over 100 homes switching from fossil fuels to heat pumps and insulation in its first year. It establishes partnerships with local installers to provide homeowners with energy assessments, proposals for insulation and heat pump installations, and below-market pricing. The program also helps participants access available incentives and financing to reduce the upfront costs of projects. Two case studies are presented showing potential savings from switching to heat pumps and insulation from propane heating.
Energy efficient buildings (EEB) aim to reduce climate impact and energy costs by encouraging efficient energy and resource use in construction. As infrastructure grows with a looming energy crisis, EEB promotes good practices like reducing heating/cooling demands through insulation, shading, and efficient systems. Key energy efficiency measures for buildings include limiting exposed areas, improving insulation, using natural ventilation, maximizing daylighting, installing efficient lighting and water heating controls, and recovering heat from hot water pipes.
Gig Harbor High School Promotional SheetLinda Burman
The Gig Harbor High School in Gig Harbor, Washington underwent $4.4 million in HVAC improvements over the summer of 2005 to address aging systems and indoor air quality concerns. The project included replacing boilers, chillers, pumps, piping, and VAV boxes as well as two new rooftop units and heat recovery units at various locations. Ductwork and piping were also replaced throughout the building. Electrical systems were upgraded including the fire alarm. The work was completed mostly over the summer break to minimize disruption.
The document provides guidelines on how to conduct an energy audit for commercial buildings in Hong Kong. It outlines the general process, which includes defining the audit scope and objectives, forming an audit team, collecting building information through surveys and records, analyzing the data, identifying energy management opportunities (EMOs), and writing an energy audit report. The guidelines classify EMOs into three categories based on their capital costs and complexity of implementation. It emphasizes the importance of gaining support from building management and cooperation from operation and maintenance personnel. The guidelines also discuss follow-up actions like implementing EMOs and conducting training.
The document analyzes energy efficiency opportunities in the Herberger administration building. It estimates that the building consumes 12-14% of the total metered energy based on its size and functions. Lighting makes up almost half of energy usage. Converting remaining lights to more efficient T8 bulbs and adjusting lighting schedules could save over 2.5% on the annual energy bill. Appliances like computers and copiers already meet standards while optimization of vending machines could save over $600 annually. Replacing aging chillers qualifies for large tax credits and would improve efficiency over twice as the current system. Commissioning the HVAC system could ensure proper functioning and calibration for improved performance.
Largest Energy Efficiency Incentive_Savings at the MeterFelix Lopez
The ability to reduce risk and securitize energy savings are important aspects of a successful energy efficiency project. One aspect is the ability of the vendor to secure the energy savings at the meter and demonstrate this to the customer every month going forward. This will be more important as utilities and banks offer On Bill Finance and On Bill Repayment Programs.
The document summarizes an energy audit of the Mechanical Workshop and Classroom Block at Kyambogo University. It finds that the main energy consumption areas are lighting, machine tools, computers, and photocopiers. Replacing T8 fluorescent tubes with LED tubes and CRT monitors with LCDs are economically feasible energy conservation measures that could save the university over 1 million Ugandan shillings per year. Proper record keeping of machine tool usage and restoring currently unusable tools could also help reduce energy costs. Implementing the identified energy efficiency improvements would cut utility expenses for the university.
The document outlines the process for conducting an energy audit. It discusses initiating an energy management program, analyzing energy bills, conducting an on-site audit by examining various systems and equipment, and developing an energy audit report that identifies energy management opportunities and recommends cost-effective solutions to reduce energy usage and costs. The goal of an energy audit is to understand current energy usage and identify ways to use energy more efficiently.
This document outlines the contents and methodology for conducting an energy audit. It begins by defining an energy audit and its significance for energy conservation. It then discusses the types of energy audits that can be conducted, including preliminary and detailed audits. The methodology sections explain how to conduct each type of audit, including collecting energy consumption data, tariff information, and assessing energy management practices. The document also lists common energy audit instruments and concludes by emphasizing the economic and environmental benefits of energy conservation.
Energy losses are inevitable in industrial processes but reducing them can significantly increase efficiency. An energy audit systematically identifies how and where energy is used and lost within a plant. It provides data on efficiency and conservation opportunities. Common areas of energy loss include poor equipment design and maintenance, and inefficient operations. Reducing losses in areas like steam systems, electrical motors, and heat recovery can substantially cut energy use and costs.
- The document provides preliminary recommendations for a campus strategic energy master plan for Lorain County Community College aimed at improving energy efficiency, reducing greenhouse gas emissions, and establishing a culture of continuous improvement.
- Key recommendations include installing a building management system, converting the steam distribution network to hot water, adding combined heat and power engines, establishing staff/student energy programs, and exceeding state efficiency targets to prepare for potential climate legislation.
This document summarizes a case study evaluating the energy savings from a deep energy retrofit of a multi-unit residential building in Vancouver, BC. It found that upgrading the building enclosure through exterior wall insulation, triple-glazed windows, and air sealing reduced the building's energy use intensity by 19% from 226 to 183 kWh/m2/yr, matching the 20% savings predicted by energy modeling. Measured savings included a 33% reduction in suite electricity use and a 63% drop in electric baseboard heating. Further energy and cost savings may be possible by upgrading the building's mechanical ventilation system. The study demonstrates that deep energy retrofits can significantly cut energy consumption in existing multi-unit residential buildings.
The document discusses strategies for reducing energy costs through green energy solutions. It recommends conducting an energy audit first to understand current energy usage and costs before implementing efficiency upgrades or renewable energy sources. Energy efficiency measures like improved lighting and controls can save significantly on costs. Solar PV is also presented as a key renewable resource that provides distributed generation to reduce grid usage. Overall the presentation focuses on using energy audits and efficiency upgrades to lower costs before investing in more expensive renewable options.
The document discusses good practices for improving energy efficiency in buildings. It outlines several key features of green buildings including using energy efficient equipment, renewable energy sources, and recycled/environmentally friendly materials. Green buildings can reduce operating costs by 30-40% while also providing health, comfort and productivity benefits. The document then provides examples of typical green building practices and technologies related to energy use, water use, materials selection and indoor environmental quality.
Making Sustainability Affordable with Digital TwinsIES VE
Presentation by David Ross from IES and Pieter Schaap from Soben. This webinar demonstrated the power of digital twin technology in driving cost-effective decarbonization.
This document discusses utility incentive programs that aim to promote energy and water efficiency. It provides an overview of how point-based incentive programs work and lists common program categories and measures incentivized, including energy audits, efficient HVAC systems, insulation, and water conservation measures. Examples of programs run by utilities to promote these measures are described. Guidance is provided on best practices for participating including involving utilities early in design phases and leveraging available rebates, grants, and low or no-cost efficiency options. Additional resources for relevant programs and incentives are also referenced.
The document discusses Optimum Energy's HVAC optimization solutions which can reduce energy consumption and costs by 30-60% through technologies like OptimumHVAC, OptimumLOOP, and OptimumTRAV. It provides examples of universities, airports, and research facilities that achieved annual energy savings of 150,000 kWh to over 6,000,000 kWh through Optimum Energy's solutions, with payback periods ranging from 12 to 36 months.
This document discusses guidelines for green buildings and the role of HVAC systems in ensuring high performance sustainable buildings. It emphasizes the importance of whole-building design and an integrated project team to achieve green building goals. Specific HVAC strategies mentioned include energy recovery systems, demand controlled ventilation, high efficiency equipment, use of renewable energy sources, and designing for natural ventilation and daylighting to reduce energy loads. The document concludes that green buildings can lower operating costs while improving indoor air quality and environmental sustainability if HVAC designers apply these various strategies and technologies.
The document provides energy usage and portfolio information for the Prescott Service Center building. It details the building size, energy sources, current energy consumption, improvement opportunities in building envelop, solar power, and lighting. Implementing improvements in building envelop, installing solar panels, and switching to LED lighting can reduce annual energy consumption by over 342,000 kWh and save over $37,000 per year while achieving payback periods of less than 10 years for the investments.
This document provides an overview of solar water heating systems. It discusses the different types of solar thermal collectors categorized by operating temperature, including low-temperature unglazed mats, mid-temperature glazed and insulated collectors, and high-temperature evacuated tubes and focusing collectors. The document then presents examples of solar water heating systems installed at various facilities in the US, including residential, commercial, and institutional buildings. Calculation methods are also provided for sizing a solar water heating system and estimating energy savings and cost effectiveness.
Innovations-in-Climate-Control-HVAC-Trends-and-Technologies.pptxPrecision Air Inc
Climate control is vital for buildings. Explore the latest HVAC trends and technologies driving energy efficiency, indoor air quality improvements, and sustainability.
Green building - Introduction & general ideasSanjay Kashyap
This presentation gives you a brief introduction & general idea about green buildings. Though lot more issues could've been put in the show, I just didn't want to overload with contents... I'll refine this presentation in a few days time & a newer version of this presentation will be ready...
The document summarizes information presented at a seminar on heat pumps and renewable energy technologies. It discusses sustainable development and various forms of renewable energy like heat pumps, solar, and wind. It then focuses on heat pumps, explaining how they work, their advantages over gas boilers in terms of cost and carbon emissions, and different types of ground source heat pumps. Micro district heating solutions are also introduced. The document concludes by covering incentives for renewable technologies like the Renewable Heat Incentive and loans available for businesses and organizations.
The document provides an update from Fiona Smith regarding nearly zero energy buildings (NZEB) and major renovations of domestic buildings according to the Energy Performance of Buildings Directive. It discusses Ireland's implementation of NZEB standards for new buildings by 2020 and cost optimal standards for major renovations. It also summarizes the requirements for major renovations to include upgrading insulation, heating systems, and controls when over 25% of a building envelope is renovated. Lastly, it provides examples comparing the standard requirements for new buildings in 2011, 2018 and the NZEB standards.
Explore the fundamentals of green building and sustainable HVAC systems with our comprehensive presentation, "Introduction to Green Building and Sustainable HVAC Systems." This guide covers essential concepts in sustainable architecture, energy-efficient HVAC solutions, and the benefits of integrating green technologies in building design. Learn how to reduce environmental impact, improve indoor air quality, and achieve energy savings through innovative HVAC practices.
Ideal for architects, builders, HVAC professionals, and sustainability advocates, this presentation provides valuable insights into creating eco-friendly buildings. Discover practical tips and expert advice on implementing sustainable HVAC systems to enhance building performance and occupant comfort.
This document summarizes a seminar on energy saving in green buildings. It discusses key concepts of green buildings such as reducing energy and resource consumption. It compares green buildings to conventional buildings and outlines tangible benefits like reduced operating costs and intangible benefits like environmental and health improvements. It also examines aspects of green building design like building orientation, envelope measures, lighting and renewable energy to reduce energy consumption. The presentation concludes that adopting green building practices can help reduce environmental impacts while providing human comfort in an eco-friendly way.
This document provides an overview of energy modeling for buildings. It defines common energy modeling terminology and discusses the benefits of energy modeling for architects, owners, and occupants. The document outlines the basic methodology of energy modeling, including determining baseline energy use and iteratively analyzing design options. It also presents sample energy models, comparing the proposed design to baseline models and code. Key areas to evaluate in energy models like envelope, lighting, HVAC, and renewable systems are identified. Case studies and potential rebates for the project are also mentioned.
This document outlines a seminar on energy saving in green buildings presented by Mr. Akshay B. Kathalkar and guided by Prof. R.M. Phuke in the Department of Civil Engineering at Akola College of Engineering and Technology. The seminar discusses green building concepts, comparisons to conventional buildings, energy consumption in buildings, and approaches to reducing energy usage through proper orientation, envelope measures, equipment and systems, and use of renewable energy. The conclusion emphasizes that green buildings have financial, health, and environmental benefits and can help reduce the minimal impact on the environment.
The Energy Code Workshop aims to raise awareness of building energy codes in Arizona based on the 2009 IECC. It is certifying 20 trainers statewide to provide training to 1200 individuals by June 2011. The workshop is market driven and offers continuing education credits. It will help increase awareness of energy codes and trends showing declining new home sales and rising vacancy rates. Energy codes can significantly reduce energy use and greenhouse gas emissions in a cost effective manner. The International Energy Conservation Code and ASHRAE 90.1 are the baseline codes adopted in many areas.
Similar to Looking for Energy Savings In All The Right Places - Eric Oliver (20)
The LEED rating system was never meant to serve as a building code. Yet, cities and states are mandating LEED for private construction. This presentation describes how LEED private construction mandates will result in a green building legal apocalypse.
The document discusses green building trends in the 21st century. It notes that the American Recovery and Reinvestment Act of 2009 allocated $25 billion to green building projects. It also discusses the prevalence of green building regulations across various U.S. states and municipalities. The risks of green building are also examined, including potential non-compliance with regulations and green building certification standards.
The document summarizes a presentation by Chris Cheatham on legal issues related to green building. It discusses how revenue for green contractors increased 70% from 2007 to 2008. It also outlines topics covered in the presentation such as LEED certification disputes ("LEEDigation"), regulatory compliance issues, green building defects, and emerging trends like longer-term commitments to LEED certification and potential liability if certification requirements are not maintained.
This document discusses opportunities for green building from the federal stimulus package. It provides an overview of the $787 billion stimulus act and outlines some of the major programs that provide funding for green building, including $4.5 billion for converting federal buildings to green buildings through the GSA, $3.1 billion for state energy programs, and $5 billion to weatherize low-income homes. It emphasizes the importance of obtaining information from resources like FedBizOpps to learn about opportunities and prepare to take advantage of the large amount of funding now available for green projects through the economic stimulus.
What Counsel Should Know About Green BuildingChris Cheatham
This document summarizes a presentation on green building and surety law. It discusses how performance bonds required by green building regulations may not be appropriate instruments. It also notes potential issues that can arise from green building certification requirements, called "LEEDigation," such as disputes over a building's actual energy efficiency. The presentation provides an overview of surety law principles and analyzes different enforcement mechanisms for green building standards, recommending alternatives to performance bonds like financial security requirements.
2009 LEED Rating System Changes and their Impact on Property Owners and Devel...Chris Cheatham
U.S. Green Building Council
Thomas C. Mawson, CAE
Executive Director, National Capital Region Chapter
2009 LEED Rating System Changes and their Impact on Property Owners and Developers
Chris Cheatham provides an overview of the intersection between suretyship and green building. If you have ever wondered what exactly is a surety, or how a surety fits into the green building industry, this is the presentation for you.
If you would like to learn more about this or other green building topics, please visit www.greenbuildinglawupdate.com or email Chris at chris@greenbuildinglawupdate.com.
Thanks for viewing.
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Industrial Tech SW: Category Renewal and CreationChristian Dahlen
Every industrial revolution has created a new set of categories and a new set of players.
Multiple new technologies have emerged, but Samsara and C3.ai are only two companies which have gone public so far.
Manufacturing startups constitute the largest pipeline share of unicorns and IPO candidates in the SF Bay Area, and software startups dominate in Germany.
Company Valuation webinar series - Tuesday, 4 June 2024FelixPerez547899
This session provided an update as to the latest valuation data in the UK and then delved into a discussion on the upcoming election and the impacts on valuation. We finished, as always with a Q&A
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How to Implement a Real Estate CRM SoftwareSalesTown
To implement a CRM for real estate, set clear goals, choose a CRM with key real estate features, and customize it to your needs. Migrate your data, train your team, and use automation to save time. Monitor performance, ensure data security, and use the CRM to enhance marketing. Regularly check its effectiveness to improve your business.
Storytelling is an incredibly valuable tool to share data and information. To get the most impact from stories there are a number of key ingredients. These are based on science and human nature. Using these elements in a story you can deliver information impactfully, ensure action and drive change.
Building Your Employer Brand with Social MediaLuanWise
Presented at The Global HR Summit, 6th June 2024
In this keynote, Luan Wise will provide invaluable insights to elevate your employer brand on social media platforms including LinkedIn, Facebook, Instagram, X (formerly Twitter) and TikTok. You'll learn how compelling content can authentically showcase your company culture, values, and employee experiences to support your talent acquisition and retention objectives. Additionally, you'll understand the power of employee advocacy to amplify reach and engagement – helping to position your organization as an employer of choice in today's competitive talent landscape.
IMPACT Silver is a pure silver zinc producer with over $260 million in revenue since 2008 and a large 100% owned 210km Mexico land package - 2024 catalysts includes new 14% grade zinc Plomosas mine and 20,000m of fully funded exploration drilling.
Anny Serafina Love - Letter of Recommendation by Kellen Harkins, MS.AnnySerafinaLove
This letter, written by Kellen Harkins, Course Director at Full Sail University, commends Anny Love's exemplary performance in the Video Sharing Platforms class. It highlights her dedication, willingness to challenge herself, and exceptional skills in production, editing, and marketing across various video platforms like YouTube, TikTok, and Instagram.
HOW TO START UP A COMPANY A STEP-BY-STEP GUIDE.pdf46adnanshahzad
How to Start Up a Company: A Step-by-Step Guide Starting a company is an exciting adventure that combines creativity, strategy, and hard work. It can seem overwhelming at first, but with the right guidance, anyone can transform a great idea into a successful business. Let's dive into how to start up a company, from the initial spark of an idea to securing funding and launching your startup.
Introduction
Have you ever dreamed of turning your innovative idea into a thriving business? Starting a company involves numerous steps and decisions, but don't worry—we're here to help. Whether you're exploring how to start a startup company or wondering how to start up a small business, this guide will walk you through the process, step by step.
Taurus Zodiac Sign: Unveiling the Traits, Dates, and Horoscope Insights of th...my Pandit
Dive into the steadfast world of the Taurus Zodiac Sign. Discover the grounded, stable, and logical nature of Taurus individuals, and explore their key personality traits, important dates, and horoscope insights. Learn how the determination and patience of the Taurus sign make them the rock-steady achievers and anchors of the zodiac.
Best practices for project execution and deliveryCLIVE MINCHIN
A select set of project management best practices to keep your project on-track, on-cost and aligned to scope. Many firms have don't have the necessary skills, diligence, methods and oversight of their projects; this leads to slippage, higher costs and longer timeframes. Often firms have a history of projects that simply failed to move the needle. These best practices will help your firm avoid these pitfalls but they require fortitude to apply.
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24. Existing Building Energy Upgrade Project * with tax credits Description First Cost Annual Savings Payback Lighting Upgrade $65,000 $21,000 3.1 yr Install programmable thermostats $12,000 $8,500 1.4 yr Chiller Replacement $95,000 $27,000 3.5 yr Improve Boiler Combustion efficiency $1,500 $2,000 0.8 yr Insulate hot water pipes $3,000 $500 6.0 yr Install door thresholds $450 $140 3.2 yr Install Variable Speed Drives on fans $24,500 $9,500 2.6 yr Replace standard efficiency motors for chilled water pumping $2,300 $550 6.2 yr * Install 10 kW photovoltaic array $40,000 $1,600 25.0 yr Total $243,750 $70,790 3.4 yr