The document discusses the concept of passive solar houses and passive houses. It provides examples of early passive solar houses built in Ireland in the 1970s-1980s, which did not meet modern standards for air-tightness, insulation and minimizing thermal bridges. The passive house standard developed in Germany in the 1990s requires ultra-high insulation (U-values <=0.15 W/m2K), minimized thermal bridges, high air-tightness (<=0.6 air changes/hour) and heat recovery ventilation. Meeting this standard poses challenges, particularly the required air-tightness, and may result in low indoor humidity in winter. Simpler passive solar house designs can still achieve low energy usage.
This document provides information on a proposed new residence designed to meet the Passive House standard. It will have an extremely energy efficient, airtight building envelope with high insulation values. It will use minimal energy for heating and cooling through strategic design including optimized solar orientation, compact shape, and an energy recovery ventilator. The project aims to achieve net-zero energy use through efficient systems and potential solar panels.
Michael McCarthy is an International authority on the Passive House standard. On December 1, 2016 Michael visited Green Building Alliance for a training session and gave this presentation at Carnegie Mellon University.
The heating system of the future, without traditional heating system. Can a house be constructed without a conventional heating system and still achieve a good comfort level in summer as well as in winter? Yes it can. Nothing magical: the right design, the right materials, and a ventilation system with heat exchanger can be enough. The following minute lecture by way of introduction to this innovative construction standard.
Intep: 24th St Passive House (Student Workshop #1)TE Studio
The 24th St. Passive House Project aims to build sustainability from greenhouse to green houses by implementing buildings based on global leading performance targets like Passive House. The project focuses on energy efficiency and high performance building envelopes to minimize energy losses and maximize gains, with an integrated design approach and performance-based targets to create highly insulated, airtight, and thermally optimized buildings.
The document discusses the Passive House standard, which focuses on just three performance metrics for energy efficiency: air infiltration rate of less than 0.6 air changes per hour, annual heating and cooling energy use of less than 4755 Btu per square foot, and total annual energy use for all purposes of less than 11.1 kWh per square foot; meeting these standards requires a highly insulated, airtight building envelope with mechanical ventilation and triple-pane windows designed using energy modeling software. Certification as a Passive House requires meeting the performance standards and undergoing blower door tests to verify the building's airtightness.
This document summarizes a 200 house development in Killeagh, Co. Cork that aims to be low energy and low carbon. Key points:
1) The development will feature highly insulated and airtight construction, with solar panels and a heat recovery ventilation system to reduce energy demands. Wood pellet boilers will provide backup heating.
2) Calculations show the design will save over 95% of CO2 emissions compared to standard homes.
3) The developer sought a design not reliant on oil or gas to future-proof against price fluctuations. The integrated systems aim to provide comfortable, low-cost heating and hot water.
This document provides an overview of passive house standards and principles. It begins by defining a passive house as a building that can maintain a comfortable interior climate without active heating and cooling through highly insulated building envelopes, airtight construction, and heat recovery ventilation. It then discusses key passive house targets for heating/cooling energy use, airtightness, and thermal comfort. Examples of certified passive house projects like offices, schools, and multifamily buildings are shown from Europe and Asia. The document outlines the key passive house principles of excellent insulation, eliminating thermal bridges, high-performance windows, and heat recovery ventilation. It also introduces the PHPP software tool used for passive house certification. Vancouver's progress toward passive house is noted
This lecture illustrates the opportunities for Passive House on commercial projects. Follow four case studies and learn how the Passive House building energy standard affects project planning, design, and what changes are made to the building envelope and mechanical systems to achieve it. Furthermore, this session highlights the differences in initial cost and life cycle cost, and provide insights into the energy conservation and CO2 reduction potential.
Intep & TE Studio designed the first certified Passive House in North America, as well as the first certified cold climate Passive House and the first certified cold climate Passive House retrofit (EnerPHit) in the world. Learn more at intep.com and testudio.com
This document provides information on a proposed new residence designed to meet the Passive House standard. It will have an extremely energy efficient, airtight building envelope with high insulation values. It will use minimal energy for heating and cooling through strategic design including optimized solar orientation, compact shape, and an energy recovery ventilator. The project aims to achieve net-zero energy use through efficient systems and potential solar panels.
Michael McCarthy is an International authority on the Passive House standard. On December 1, 2016 Michael visited Green Building Alliance for a training session and gave this presentation at Carnegie Mellon University.
The heating system of the future, without traditional heating system. Can a house be constructed without a conventional heating system and still achieve a good comfort level in summer as well as in winter? Yes it can. Nothing magical: the right design, the right materials, and a ventilation system with heat exchanger can be enough. The following minute lecture by way of introduction to this innovative construction standard.
Intep: 24th St Passive House (Student Workshop #1)TE Studio
The 24th St. Passive House Project aims to build sustainability from greenhouse to green houses by implementing buildings based on global leading performance targets like Passive House. The project focuses on energy efficiency and high performance building envelopes to minimize energy losses and maximize gains, with an integrated design approach and performance-based targets to create highly insulated, airtight, and thermally optimized buildings.
The document discusses the Passive House standard, which focuses on just three performance metrics for energy efficiency: air infiltration rate of less than 0.6 air changes per hour, annual heating and cooling energy use of less than 4755 Btu per square foot, and total annual energy use for all purposes of less than 11.1 kWh per square foot; meeting these standards requires a highly insulated, airtight building envelope with mechanical ventilation and triple-pane windows designed using energy modeling software. Certification as a Passive House requires meeting the performance standards and undergoing blower door tests to verify the building's airtightness.
This document summarizes a 200 house development in Killeagh, Co. Cork that aims to be low energy and low carbon. Key points:
1) The development will feature highly insulated and airtight construction, with solar panels and a heat recovery ventilation system to reduce energy demands. Wood pellet boilers will provide backup heating.
2) Calculations show the design will save over 95% of CO2 emissions compared to standard homes.
3) The developer sought a design not reliant on oil or gas to future-proof against price fluctuations. The integrated systems aim to provide comfortable, low-cost heating and hot water.
This document provides an overview of passive house standards and principles. It begins by defining a passive house as a building that can maintain a comfortable interior climate without active heating and cooling through highly insulated building envelopes, airtight construction, and heat recovery ventilation. It then discusses key passive house targets for heating/cooling energy use, airtightness, and thermal comfort. Examples of certified passive house projects like offices, schools, and multifamily buildings are shown from Europe and Asia. The document outlines the key passive house principles of excellent insulation, eliminating thermal bridges, high-performance windows, and heat recovery ventilation. It also introduces the PHPP software tool used for passive house certification. Vancouver's progress toward passive house is noted
This lecture illustrates the opportunities for Passive House on commercial projects. Follow four case studies and learn how the Passive House building energy standard affects project planning, design, and what changes are made to the building envelope and mechanical systems to achieve it. Furthermore, this session highlights the differences in initial cost and life cycle cost, and provide insights into the energy conservation and CO2 reduction potential.
Intep & TE Studio designed the first certified Passive House in North America, as well as the first certified cold climate Passive House and the first certified cold climate Passive House retrofit (EnerPHit) in the world. Learn more at intep.com and testudio.com
Net Zero Energy in Very Cold Climates by Peter AmerongenMBHomeBuilders
This document discusses designing and building net zero energy homes in very cold climates. Key points include:
- Aggressive energy conservation through a well-insulated building envelope is critical to achieving net zero, as it is nearly impossible without it.
- Modeling the home's energy performance is important to optimize the design and minimize costs. This includes evaluating insulation levels, passive solar gain, and mechanical systems.
- Windows are a major source of heat loss, so selecting high-performance windows is important for the design.
This document provides construction details and specifications for a new passive house in Scranton, Pennsylvania. It includes floor plans, building elevations, wall sections, and outlines of the building enclosure systems. The 2-story house has over 1,700 square feet of living area and uses high-performance building techniques like triple-pane windows, dense-packed cellulose insulation, an energy-recovery ventilator and an air-tight building envelope to achieve a certified passive house standard with a projected annual heating demand of only 888 kBTU.
Swedish Passivhaus Conference Laholm 2019Nick Grant
The document discusses how to simplify and reduce the cost of Passivhaus design through an approach called value engineering. It argues that embracing constraints can lead to more functional and cost-effective designs, like what occurs in nature. Examples of low-cost Passivhaus projects in the UK demonstrate that cheaper and simpler designs can achieve the performance standards while being better suited for widespread adoption. The document advocates for opening up Passivhaus solutions to make the standard much easier to achieve at scale and impact climate change.
Is Passivhaus a step too far? South Pacific Passive House Conference Auckland...Nick Grant
Is the Passivhaus standard too extreme for a mild climate such as New Zealand? Do we really need to do all the modelling and calculations if we max out the insulation and air tightness? Nick Grant's first presentation at the first South Pacific Passive House Conference in Auckland aims to explore these questions.
The document discusses the Passive House energy design standard, which aims to achieve a 90% reduction in space heating needs and 70% reduction in total building energy usage. It provides examples of Passive House buildings constructed in Europe and discusses the key design principles, which include superinsulation, airtight construction, and heat recovery ventilation. Compact building designs that minimize surface area are emphasized to reduce energy demands. The Passive House Planning Package (PHPP) is used to calculate and optimize building designs to meet the rigorous Passive House criteria.
Passivhaus Designing for heating load 25th Passivhaus ConferenceNick Grant
Passive solar is dead, long live super-insulation. This paper was presented at the 25th International Passivhaus Conference, online. Passivhaus (Passive House) is the leading international standard for comfortable low energy buildings. This paper recommends designers consider designing for the alternative metric of peak heating load rather than annual energy demand. This means optimising glazing for daylight and views and not for solar gain.
Building an even better Passivhaus SchoolNick Grant
This document summarizes the key lessons learned from building three Passivhaus schools in Wolverhampton with no extra budget for the Passivhaus standard. It found that higher internal heat gains from students led to more comfortable classrooms despite less solar gain from smaller windows. Simpler designs for ventilation, kitchens, and heating systems performed well while costing less than more complex alternatives. Monitoring identified areas for improvement in summer ventilation strategies and building management systems. Overall, the schools demonstrated that the Passivhaus standard can be achieved affordably in schools through design optimizations and occupant feedback.
Monitored energy use of air to water heat pumps in single Passivhaus dwellings is compared with the design estimates using PHPP. Heat pumps using conventional HFC refrigerants are compared with CO2 refrigerant. The latter gave improved performance for hot water heating but significantly worse for space heating. This is due to the very low heat load of Passivhaus dwellings being below the normal output range of available heat pumps.
In case you missed it !! NuTech gave a presentation at the recent Gas Networks Ireland (GNI) Conference for BER Assessors. The presentation deals mainly with how the NuTech Solar Enhanced Heating and Hot Water system can be used together with a simple and reliable gas boiler system can be used to comply with Part L & achieve an A Rated House. The presentation also gives information on the NuTech Solar Enhanced Ventilation and Hot Water system can be used to satisfy Part L.
This is the slideshow presentation I gave at the Green by Design conference in Minneapolis on 6/11/2009. The focus was on Passive House and Deep Energy Reduction Retrofit.
The slideshow contains a lot of full-screen images but no subtitles, therefore omitting some of the information which would have been given verbally during the presentation.
Residential Case Studies of Passive Strategiesaiahouston
This document summarizes a presentation about passive design strategies for homes in hot humid climates like Texas. It provides examples of over a dozen case studies of homes designed by the presenter to utilize passive strategies like shading, ventilation, thermal mass, and daylighting to reduce energy usage and increase comfort. Owners of these passive homes reported rarely needing to use mechanical cooling or heating except when entertaining guests. The presentation aimed to teach architects the importance of passive design and demonstrate that approaches beyond conventional wood frame construction can create sustainable, resilient homes.
The presentation introduced the Passive House concept and its application for new dwellings, renovation and in office buildings. The market for Passive Houses is set for rapid growth. A market overview is given in a European context.
This is a slideshow given at the Passive House Alliance Minneapolis- St. Paul chapter fall lecture series in October 2013. After a basic Passive House introduction it showcases the design process for Western Technical College's 24th St. Passive House project in La Crosse, WI
This document introduces the Thousand Home Challenge, which aims to reduce energy consumption in existing homes by 70-90% through performance-based design. It reviews two options for qualifying homes in the challenge - reducing energy use by 75% or meeting a customized energy threshold. The document also provides a case study of a 1940 home in Petaluma, CA that was rehabilitated in phases to incorporate various energy efficiency and renewable energy strategies, with the goal of achieving net zero energy use.
St Thomas The Apostle, Elson Faculty Applicationsimonrundell
This faculty application from St. Thomas the Apostle Church in Elson seeks approval for several renovations and upgrades to the building. This includes leveling the nave floor, installing infrared heating chandeliers, adding electrical work and cable access below the floor, installing carpet tiles, and replacing boards in the chancel with stone flooring over the next 4 years. The renovations aim to improve accessibility, upgrade aging infrastructure and heating, and continue the transformation of the church space that previous projects have achieved. Approval is requested to complete the work over the next 2 years using allocated funds and volunteer labor.
First Passive House Retrofit in a Cold Climate: The MinnePHit HouseTE Studio
This presentation was given by Tim Delhey Eian of TE Studio on Tuesday, September 23rd, at the 2014 NAPHN Passive House Conference in Portland, Maine. It showcases the first cold climate Passive House retrofit (EnerPHit) project which TE Studio designed, and the Passivhaus Institut in Darmstadt (Germany) certified as a pilot EnerPHit project.
Net Zero Energy in Very Cold Climates by Peter AmerongenMBHomeBuilders
This document discusses designing and building net zero energy homes in very cold climates. Key points include:
- Aggressive energy conservation through a well-insulated building envelope is critical to achieving net zero, as it is nearly impossible without it.
- Modeling the home's energy performance is important to optimize the design and minimize costs. This includes evaluating insulation levels, passive solar gain, and mechanical systems.
- Windows are a major source of heat loss, so selecting high-performance windows is important for the design.
This document provides construction details and specifications for a new passive house in Scranton, Pennsylvania. It includes floor plans, building elevations, wall sections, and outlines of the building enclosure systems. The 2-story house has over 1,700 square feet of living area and uses high-performance building techniques like triple-pane windows, dense-packed cellulose insulation, an energy-recovery ventilator and an air-tight building envelope to achieve a certified passive house standard with a projected annual heating demand of only 888 kBTU.
Swedish Passivhaus Conference Laholm 2019Nick Grant
The document discusses how to simplify and reduce the cost of Passivhaus design through an approach called value engineering. It argues that embracing constraints can lead to more functional and cost-effective designs, like what occurs in nature. Examples of low-cost Passivhaus projects in the UK demonstrate that cheaper and simpler designs can achieve the performance standards while being better suited for widespread adoption. The document advocates for opening up Passivhaus solutions to make the standard much easier to achieve at scale and impact climate change.
Is Passivhaus a step too far? South Pacific Passive House Conference Auckland...Nick Grant
Is the Passivhaus standard too extreme for a mild climate such as New Zealand? Do we really need to do all the modelling and calculations if we max out the insulation and air tightness? Nick Grant's first presentation at the first South Pacific Passive House Conference in Auckland aims to explore these questions.
The document discusses the Passive House energy design standard, which aims to achieve a 90% reduction in space heating needs and 70% reduction in total building energy usage. It provides examples of Passive House buildings constructed in Europe and discusses the key design principles, which include superinsulation, airtight construction, and heat recovery ventilation. Compact building designs that minimize surface area are emphasized to reduce energy demands. The Passive House Planning Package (PHPP) is used to calculate and optimize building designs to meet the rigorous Passive House criteria.
Passivhaus Designing for heating load 25th Passivhaus ConferenceNick Grant
Passive solar is dead, long live super-insulation. This paper was presented at the 25th International Passivhaus Conference, online. Passivhaus (Passive House) is the leading international standard for comfortable low energy buildings. This paper recommends designers consider designing for the alternative metric of peak heating load rather than annual energy demand. This means optimising glazing for daylight and views and not for solar gain.
Building an even better Passivhaus SchoolNick Grant
This document summarizes the key lessons learned from building three Passivhaus schools in Wolverhampton with no extra budget for the Passivhaus standard. It found that higher internal heat gains from students led to more comfortable classrooms despite less solar gain from smaller windows. Simpler designs for ventilation, kitchens, and heating systems performed well while costing less than more complex alternatives. Monitoring identified areas for improvement in summer ventilation strategies and building management systems. Overall, the schools demonstrated that the Passivhaus standard can be achieved affordably in schools through design optimizations and occupant feedback.
Monitored energy use of air to water heat pumps in single Passivhaus dwellings is compared with the design estimates using PHPP. Heat pumps using conventional HFC refrigerants are compared with CO2 refrigerant. The latter gave improved performance for hot water heating but significantly worse for space heating. This is due to the very low heat load of Passivhaus dwellings being below the normal output range of available heat pumps.
In case you missed it !! NuTech gave a presentation at the recent Gas Networks Ireland (GNI) Conference for BER Assessors. The presentation deals mainly with how the NuTech Solar Enhanced Heating and Hot Water system can be used together with a simple and reliable gas boiler system can be used to comply with Part L & achieve an A Rated House. The presentation also gives information on the NuTech Solar Enhanced Ventilation and Hot Water system can be used to satisfy Part L.
This is the slideshow presentation I gave at the Green by Design conference in Minneapolis on 6/11/2009. The focus was on Passive House and Deep Energy Reduction Retrofit.
The slideshow contains a lot of full-screen images but no subtitles, therefore omitting some of the information which would have been given verbally during the presentation.
Residential Case Studies of Passive Strategiesaiahouston
This document summarizes a presentation about passive design strategies for homes in hot humid climates like Texas. It provides examples of over a dozen case studies of homes designed by the presenter to utilize passive strategies like shading, ventilation, thermal mass, and daylighting to reduce energy usage and increase comfort. Owners of these passive homes reported rarely needing to use mechanical cooling or heating except when entertaining guests. The presentation aimed to teach architects the importance of passive design and demonstrate that approaches beyond conventional wood frame construction can create sustainable, resilient homes.
The presentation introduced the Passive House concept and its application for new dwellings, renovation and in office buildings. The market for Passive Houses is set for rapid growth. A market overview is given in a European context.
This is a slideshow given at the Passive House Alliance Minneapolis- St. Paul chapter fall lecture series in October 2013. After a basic Passive House introduction it showcases the design process for Western Technical College's 24th St. Passive House project in La Crosse, WI
This document introduces the Thousand Home Challenge, which aims to reduce energy consumption in existing homes by 70-90% through performance-based design. It reviews two options for qualifying homes in the challenge - reducing energy use by 75% or meeting a customized energy threshold. The document also provides a case study of a 1940 home in Petaluma, CA that was rehabilitated in phases to incorporate various energy efficiency and renewable energy strategies, with the goal of achieving net zero energy use.
St Thomas The Apostle, Elson Faculty Applicationsimonrundell
This faculty application from St. Thomas the Apostle Church in Elson seeks approval for several renovations and upgrades to the building. This includes leveling the nave floor, installing infrared heating chandeliers, adding electrical work and cable access below the floor, installing carpet tiles, and replacing boards in the chancel with stone flooring over the next 4 years. The renovations aim to improve accessibility, upgrade aging infrastructure and heating, and continue the transformation of the church space that previous projects have achieved. Approval is requested to complete the work over the next 2 years using allocated funds and volunteer labor.
First Passive House Retrofit in a Cold Climate: The MinnePHit HouseTE Studio
This presentation was given by Tim Delhey Eian of TE Studio on Tuesday, September 23rd, at the 2014 NAPHN Passive House Conference in Portland, Maine. It showcases the first cold climate Passive House retrofit (EnerPHit) project which TE Studio designed, and the Passivhaus Institut in Darmstadt (Germany) certified as a pilot EnerPHit project.
Multi-agent Control of Thermal Systems in BuildingsBenoit Lacroix
In buildings, the thermal functions of heating, ventilation, air conditioning and domestic hot water production are often interdependent. Additionally, it is more and more complex to control them, given the increasing use of alternative energy sources, such as solar thermal collectors or heatpumps. In this work, we propose an approach allowing to design and optimize the control of thermal systems in the buildings, while improving flexibility and reusability. Consumer, producer, distributor and environmental agents are used to represent the building and its appliances. These agents' internal models allow them to compute the energy needs, energy resources and associated costs, and take into account the specificities of the thermal systems. Following this modeling step, a distributed mechanism automatically controls the system, by combining a multi-criteria selection, a local optimization and a distributed allocation of the available resources. This approach was used to control a compact unit providing heating, ventilation and domestic hot water production in a low-energy building. The system was evaluated using a thermal simulator, and managed to improve the thermal comfort by 35% compared to the initial control system, for only a 2.5% increase in costs.
Multi-Comfort is a building concept developed by Saint-Gobain that focuses on creating efficient, comfortable buildings that improve health and well-being. The concept addresses five areas of comfort - thermal, audio, visual, indoor air quality, and economic. Multi-Comfort buildings are designed to be sustainable, using minimal energy while providing a high quality indoor environment through features like constant fresh air supply, natural light without glare, and soundproofing from outdoor noise.
SEO pour les développeurs - eléments essentiels et bonnes pratiquesAymen Loukil
Initiation au SEO et sensibilisation à son importance destinée aux les profils techniques. "Le SEO pour les développeurs, eléments essentiels et bonnes pratiques" meetup à la Wild Code School - Lyon 25 Octobre 2016
http://www.aymen-loukil.com
Timber frame construction can be used to build low or zero carbon housing by achieving high levels of insulation and airtightness. Passive houses require air infiltration rates below 0.03 air changes per hour and use heat recovery ventilation systems. Using increased insulation, achieving air tightness of less than 0.1 air changes per hour, and integrating solar technology and heat recovery ventilation can allow timber frame homes to meet future regulations requiring homes that use 62 kWh/m2 or less per year. Proper workmanship will be important to ensure high performance.
Defining the Nearly Zero Energy Building – Best practice brochure for municip...MARIA SFYRAKI &ASSOCIATES
5 May 2015. A newly released guideline detailing best practice in low energy building for municipalities has just been released via the EU-funded project known as PassREg. The brochure details inspiring examples from across Europe and provides compelling measures that municipalities can implement for their building sectors. This small book shows how ‘energy efficiency first’ complemented by renewables makes for an ideal approach, not only for municipal energy action planning and in answer to the EU’s call for Nearly Zero Energy Buildings (NZEBs) but also in terms of affordability. All examples detailed are based on the Passive House Standard, an energy standard increasingly being implemented by municipalities worldwide as the basis for achieving extreme energy savings and emissions reductions in the building sector.
This document summarizes a student paper about passive houses. It defines a passive house as one that uses very low energy through features like excellent insulation, an efficient ventilation system, and triple-glazed windows. It provides details on the key elements of passive houses and explains why they are more expensive to build initially due to new technologies. The document concludes by summarizing a specific example of a passive house built in Denmark, highlighting how its design improved comfort and flexibility over traditional passive house standards.
This document provides information to calculate the payback period of installing a small wind turbine. It details the costs of equipment, installation, annual maintenance, electricity production estimates, and revenue from electricity sold to the grid. The simple payback period is calculated to be 29.9 years, making the project unsustainable given the turbine lifespan is only 25 years. Additional information is provided on home electricity usage and average wind speeds at different heights.
New Kid on the Block: Passive House Comes into Pittsburgh's Neighborhoodlucyna99
Super energy efficient and modern Passive House Duplex has been designed for Squirrel Hill neighborhood in Pittsburgh, PA. A Passive House is so well insulated and is so air-tight that heating and cooling energy is cut by up to 80% compared to standard new construction. Half of the duplex is available for pre-sale.
Panache Green tech Solutions Pvt. Ltd. ( PGTS) takes the privilege to introduce itself as pioneers in providing Energy Efficient Building Enveloping with its range of innovative products, systems & to deliver the Concept of “Cool Homes without AC!”
Panache started its journey in 2008 as Aesthetic Solutions and in a short span of 6 years it has a wide spectrum clientele of Platinum , Gold LEED rated buildings ,Commercial , Residential and Industrial projects.
Panache with the conscious efforts to promote environment friendly approach , comprises a complete product range of water based products & excels to innovate in sustainable designs , products & systems for various applications.
Please visit:- www.panachegreen.com
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Besides the aesthetics of a newly minted infill, there’s a lot more to the home build than meets the eye. Given the rapid growth in popularity of infills some people may rush to invest in their dream home and often overlook (or don’t consider) important aspects of the home during construction.
Here are some modern building techniques to look out for. These methods will improve the efficiency, longevity and safety of your new home!
Passive Home Training Module for Architects and PlannersLeonardo ENERGY
The document discusses passive house standards and strategies for achieving thermal comfort in buildings. It provides an overview of building energy consumption in Europe and passive systems used in traditional architecture. It then discusses the Passivhaus standard, which aims to limit space heating energy use and ensure indoor comfort. The standard has been successfully applied to over 8,000 buildings in central Europe. The document considers how the Passivhaus principles and quality requirements could be adapted for warmer climates in southern Europe through strategies like passive cooling.
This document provides an introduction to the concept of free cooling using a ground coupled heat exchanger combined with a radiant heating and cooling system. It discusses factors that influence cooling loads in residential buildings such as solar gains, shading, and room variation. The document also examines duration of cooling loads, required cooling capacity, and guidelines for optimal temperature conditions.
Connect Conference 2022: Passive House - Economic and Environmental Solution...TE Studio
Passive House: The Economic and Environmental Solution for Sustainable Real Estate. Lecture by Tim Eian of TE Studio Passive House Design in November 2022 in Minneapolis.
- The Built Environment
- Let's imagine the perfect building
- The Passive House standard
- Why Passive House targets
- Clean Energy Plans?!
- How does Passive House compare and fit in?
- The business case for Passive House real estate
- Tools to quantify the value of Passive House
- What can I do?
- Resources
- The document discusses the HeatPod project, a whole-house retrofit by Penwith Housing Association to dramatically reduce the carbon emissions and energy use of an existing home.
- The retrofit included external wall insulation, triple glazed windows, an energy efficient heat recovery ventilation system and a ground-source heat pump installed in a conservatory addition called a "HeatPod".
- Initial results showed the home's carbon emissions reduced to around 17kg CO2/m2/year and space heating has not been needed so far, with the internal temperature maintained at 18 degrees Celsius using just the heat pump system.
Guide to Building an Energy Efficient Home mrconroy
The document provides guidance on building an energy efficient home. It discusses selecting an appropriately oriented site that receives winter sun and is sheltered from wind. The building should have a compact form and south-facing orientation to allow for passive solar heating. High levels of insulation throughout the building fabric are important to minimize heat loss, as is avoiding thermal bridges. Proper ventilation is also essential to provide fresh air while minimizing energy wasted through draughts.
Passive construction involves building techniques that minimize the need for active heating systems through excellent insulation, air-tightness, and passive solar design. Passive solar design considers factors like window placement and size to maximize natural light and heat from the sun. A case study describes renovating a home to passive house standards through steps like increased wall and roof insulation, triple-glazed windows, and an HRV system. Commercial buildings can also use passive design, as shown by a Tesco in Tramore with an insulated porch and air curtain to minimize heat loss from frequent door opening.
This document summarizes an energy audit of a split-level home with approximately 1,200 square feet of living space. It describes the construction details and current insulation levels. Air leakage testing found the home to be mildly leaky. Recommendations include replacing the electric furnace with a high-efficiency natural gas furnace, adding insulation to uninsulated areas like the crawlspace and basement, reducing electrical loads, and upgrading attic insulation. Appendices provide additional details on space measurements, weather data, electricity usage charts, and historical natural gas consumption.
The document presents the design of affordable zero energy homes that produce enough solar power to meet the home's energy needs and power an electric vehicle. Key aspects of the design include a south-facing sunspace to collect solar heat, a hybrid truss system to create a large south-facing roof for solar panels, highly insulated building materials, thermal mass floors, and an integrated heating and cooling system. Energy modeling showed the home could achieve a HERS rating of -55, producing more energy than it consumes on an annual basis.
This document summarizes a presentation given at the iCon Environmental Innovation Centre on June 30, 2011 about new business opportunities in the low carbon economy. It discusses Patrick Bellew's work at Atelier Ten designing sustainable, low energy buildings using pioneering approaches like thermal labyrinths and earth duct technology. It also presents several case studies of high-performance buildings designed by Atelier Ten that achieved low carbon conditioning through strategies like geothermal heating/cooling and displacement ventilation. Finally, it summarizes Atelier Ten's design of the Cool-Dry conservatory for Gardens by the Bay in Singapore, which maintains optimal temperature and humidity for plants through biomass-powered dehumidification and cooling.
The full retrofit of a typical 1919 terrace house was conducted to study the impact of whole house retrofit measures. Multiple insulation and air sealing measures were installed, including internal wall insulation, external wall insulation, loft insulation, floor insulation, and upgraded windows. Comprehensive monitoring found the retrofit reduced heat loss by 63% and air leakage by 50%, resulting in predicted annual energy cost savings of £348 and heating the home for less than £4 per week. Over 54 million data points were collected from 414 sensors, providing valuable insights into whole house performance.
Conference paper: Passive House for Medium Density Housing in NZ (2018)Elrond Burrell
Conference paper presented at the South Pacific Passive House Conference in Melbourne 2018.
The Passive House standard is often associated with single-family homes. In NZ, only single- family homes (and a two-family home) have been certified to the standard to date (2018.) In fact, the standard can be applied to most building typologies and sizes. Scaling up to medium-density housing (MDH) actually makes it easier to achieve the standard. This is due to the inherent efficiencies (good thermal envelope to floor area ratio) of multi-unit housing.
Housing densification is an important topic in NZ due to the increasing population and a notable housing shortage in the main centres. This has been reflected in the government, official bodies and the construction industry giving more attention to MDH in recent years.
With these different factors at play, it seems like there is a good opportunity for Passive House MDH uptake in NZ. And, it is hoped that this study can contribute in a small way towards the development of Passive House MDH in NZ.
Micro Climate Analysis and Passive Design
Bio Climatic Design and Thermal Comfort
Radiant System Capacity Evaluation
Low Energy Passive Design Strategy Matrix
Net Zero Energy School Energy Modeling Case Study
Low Energy Research Lab Energy Modeling Case Study
VAV Thermal Diffuser Parametric Energy Modeling Analysis
Plug Load Monitoring of Our Workstations
Core & Shell Energy and Daylight Modeling to Net Zero Case Study
Indoor and Outdoor Thermal Comfort Analysis
This document outlines 22 tips for designing a sustainable home that reduces environmental impact and saves money. Some key ideas include choosing an efficient location near transportation, using a compact design with optimal orientation for natural lighting and heating/cooling, selecting sustainable materials including local and recycled options, tight air sealing and insulation, energy efficient appliances and lighting, and water conservation features. Renewable energy sources, rainwater collection, and native landscaping are also recommended. The goal is to build a durable, energy efficient home that the owners will enjoy for many years.
Similar to Bill Quigley Passive solar house CI (20)
Fingal County Council is pioneering sustainable public housing in Ireland by building energy efficient homes that achieve an A3 building energy rating. The development in Oldtown uses high performance timber frame construction with rigorous air tightness standards to minimize energy usage. Solar panels and a heat recovery ventilation system provide renewable energy to meet domestic hot water and heating needs. This project sets a new standard for sustainable public housing that can help address Ireland's ongoing need for more affordable homes.
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Presentation for Action Renewables Association
Belfast 30th November 2009
___________________________________
Heat Recovery Ventilation
in
Low Energy / Low CO2
Housing
1. Passive housing and
the concept of the
passive solar house
have been around
for many years. In
Ireland we have many
examples of what
was known as the
passive solar house.
It was quite differ-
ent to the Passivhaus concept developed
and made successful by Wolfgang Feist
and the Passivhaus Institut in Germany.
The passive solar house in Ireland
The passive solar house, particularly in
Ireland, did not feature the attention to
U-value, air-tightness and cold bridging
that is now prevalent in low energy housing.
There were several reasons for this. We
had not developed the methods of build-
ing which were readily and economically
available to achieve very low U-values in
practice. Some wall constructions were
designed to give low U-values but in real-
ity did not do so in practice due to site
construction problems. Similarly, triple-
glazed windows were not economically
available through Irish suppliers. It was
found difficult to build houses to levels
Passivhaus
or passive solar house?
A PASSIVE SOLAR HOUSE CONCEPT DESIGNED
FOR IRELAND
Few concepts in sustainable design have caught on like the passive house. Since the con-
struction of the first passive house in Germany in 1990, an estimated 15 to 20,000 houses
have been built to what is arguably the world’s leading low energy building standard. Draw-
ing from his experience in sustainable building since the early 1980s, Bill Quigley of NuTech
Renewables posits an alternative approach.
2. CI 71
of air-tightness that were deemed neces-
sary for low energy housing, and elimi-
nating thermal bridging was difficult given
the methods of construction and the methods
of analysis available at the time. It’s fair
to say that the Irish construction indus-
try simply was not ready to be forced
into the highly specialised techniques to
achieve the U-values and air-tightness re-
quired and also, and probably most im-
portantly, there simply was not the will
to deliver a near ‘zero-energy’ house.
This gave rise to an extraordinary situa-
tion, where the ‘low energy house’ in practice
could cost considerably more to run than
the actual design amount as is illustrated
in figure 1. If the actual heat losses are
doubled – which could well be the case
because of poorly installed insulation,
lack of air-tightness and serious thermal
bridging – then the running costs tripled
over the design value as the amount of
solar gain remained approximately the same.
With this knowledge and with the growing
number of architects and engineers interested
in this area of low energy house technol-
ogy, a number of examples were built.
Probably the first serious example of a passive
solar house in Ireland was the Garristown
house in County Dublin, built between
1979 and 1980. The concept design was
by the well known engineer and special-
ist in thermodynamics John Cash, for whom
the house was actually being built. Dun-
can Stewart was the architect and other
colleagues of John and Duncan in DIT were
also involved in various aspects of the
house design. Huge efforts were made to
ensure that this house achieved its de-
sign values and indeed it was such a suc-
cess that it sparked considerable interest
in this area. As can be seen from the photo
this reasonably well insulated house fea-
tured a massive solar wall of some 110 m2
.
Another example of a passive solar house
built a little later than the Garristown house
was the Knocklyon solar house, which
was built and monitored between 1983
and 1989. This house featured an early
version of a solar heating and ventilation
system which eventually evolved into
NuTech’s Sunwarm system. This early
system had 40m2
(gross) of air solar col-
lectors. In reality this was a passive solar
house with an active solar feature. The
collector array fed energy into the heat-
ing and ventilating system and into the
domestic hot water system. The wall in-
sulation in this house – an early version
of bonded bead – proved troublesome
and had to be replaced by blown fibre-
glass. Difficulties were also experienced
in attaining a high degree of air-tightness.
Many different systems were tried and
tested in this house including air solar
collectors, phase change material heat storage
and solar assisted heat pump technology,
to name a few. A huge amount of infor-
mation was gathered by way of the data
monitoring system, the results of which
were reported to the energy directorate
of the European Commission.
The Knocklyon project in particular led the
way to a simplified passive solar house
concept developed by Mark Forkin and I
at NuTech Renewables. This concept can
achieve the same results as a more ex-
pensive-to-build passive house. Details
of this system together with a compari-
son will be given later in this article.
Figure 1: effects on energy usage with increased heat loss characteristic
(above) Ireland’s first example of a passive solar house in Garristown, County Dublin, fea-
tured a solar wall of some 110m2
; (below) the Knocklyon solar house featured a solar heat-
ing and ventilation system; (opposite, top) a clay / straw passive house in Tattendorf,
Austria; (opposite, bottom) a NuTech designed passive solar house built with KTF’s inno-
vative timber frame system
3. CI 73
The passive house concept
The passive house concept as put forward
by the Passivhaus Institut is a very excit-
ing development and is of its time, as the
fabric elements and the systems involved
are now fully developed and widely available.
The basic requirements are:
• The house will use not more than
15 kWh/m2
per year of delivered
energy for space heating.
• The house will have a specific
annual heating load of less than
10 W/m2
. This does take into account
the heat gains by way of solar
gains through the windows and
the internal heat gains due to
occupancy. Hence, it should be
noted that this is a different figure
to the energy required to meet
the specific heat loss characteristic
of a house for a given temperature
difference.
• The air-tightness of the house will
be such that the air infiltration
rate will be less than 0.6 air changes
per hour at 50 Pa.
• Thermal bridging will be reduced
to a minimum.
• A heat recovery ventilation system
is used to supply the necessary
air for ventilation. It must have
an efficiency of more than 75
per cent. The system will supply
at least 0.3 ACH of fresh air.
• A solar water heating system should
be used. Typically, a 3m2
Evacuated
Tube Array with a 300 litre domestic
hot water cylinder will suffice.
By these means the necessity for a full
primary central heating system are negated.
It is generally sufficient to add any extra
energy by way of energy delivered from
an internal wood pellet stove normally
placed in the fireplace of the house, or by
way of a small heat pump which is extracting
energy out of the extracted air which has
already gone across the HRV unit. The design
of this unit is catered for in the Passive
House Planning Package (PHPP) software.
PHPP is a most useful and comprehensive
tool to aid the designer in arriving at a
satisfactory solution based on all of the above
points. To use this package will require
most designers to undertake a certain amount
of training. To date courses are being of-
fered by SEI/REIO and by Nicer Training.
Typically, to satisfy the above criteria the
fabric U-values must be less than or equal
to the following1
:
The following points should be given
careful consideration:
• An air infiltration level of less than
0.6 ACH at 50 Pa is very low indeed.
It represents an actual infiltration
rate at normal pressure of less
than 0.03 ACH. It would be our
view that with only 0.3 ACH of
fresh air being delivered by way
of the HRV system, consideration
would have to given to the humidity
level in the house in winter as it
could drop to very low levels
indeed – a figure of 35 per cent
relative humidity at 20o
C.
• ThedraftPartFofbuildingregulations
call for a fresh air requirement
of 0.3 litres of fresh air per second
per m2
of floor area. This must be
taken into account and supersedes
any other requirements as set
out in the PHPP.
• At this level of air-tightness, great
care would be required in the fitting
and use of an internal wood pellet
stove to ensure that there was
no depressurisation in the room
it is sited. Also, the stove would
have to be room sealed – in other
words its combustion air would
have to come from outside – as
it should in all low energy houses.
• The difficulty in achieving this
level of air-tightness should not
be underestimated.
• If the temperature of the house
should drop due to non-occupancy
in winter, then the power required
in the heating system would have
to be greater than 1200 W in order
that the house would heat-up in
a short time as power will be
required to overcome the thermal
response/thermal mass of the
house. Alternatively, homeowners
should be told to leave the
heating on even when they are
away as it will use so little energy
in the first place.
• To save costs some passive house
designers use a direct acting
electric heater in the air duct to
provide back-up heating. It should
be remembered that when this
is taken into account in SEI’s DEAP
calculation a severe penalty is
incurred as the use of electrical
energy is multiplied by a factor
of 2.7. Very often it can move
the rating of the house on the BER
scale from being an A2 house to
a B2 rating.
• Large areas of south-facing and
indeed east- and west-facing glazing
shouldbegivencarefulconsideration.
The possibility of overheating
due to solar gains through these
windows must be considered
and appropriate steps taken.
• It is vitally important that the
fabric thermal performance levels
are achieved in practice. If
there is only a 1200 W heater to
cater for deficiencies and if the
actual heat losses were somewhat
higher than the design, then it
would be disastrous for the comfort
levels experienced by the home
owner and the running costs would
escalate accordingly.
There is no doubt that if all of the criteria
are adhered to rigidly then a low energy
house will result. Comfort levels will be
satisfactory and running costs will be very
low. However, it is important that all of
the above points are taken into consider-
ation by the designer and the builder.
The NuTech passive solar house concept
The NuTech passive solar house concept
is a little different. It was devised originally
by Mark Forkin and this author out of the
design and systems used in the original
passive solar house in Knocklyon. All of
the technologies developed have been
rigorously tested over the past 20 years.
In essence, the U-values arrived at are a
little less strict in certain circumstances
over the PHI values to ensure cost breaks
are achieved and then this is compensated
for by way of a larger solar array of evac-
uated tubes delivering energy into the HRV
system even in cloudy weather (hence the
reason for using evacuated tubes over flat
plate collectors). The thinking is that as
insulation levels get higher and higher it
is a clear case of diminishing returns which
are, as mentioned, offset by the amount
of energy delivered to heating by way of
the solar array. NuTech are in full agree-
ment that high levels of air-tightness are
essential. The reduction in thermal bridging
is also vitally important as this has an
enormous effect on the overall heat loss
characteristic (W/K) of the house.
Typically, the NuTech requirements for
the fabric U-values must be less than or
equal to the following:1
As can be seen there are some essential
differences to the typical PHI requirements.
The external wall U-value is raised to
0.16 W/m2
K as it can be achieved in tim-
ber frame with a reasonably sized stud
which then has internal insulation fixed
to reduce the effect of thermal bridging.
The window U-value is raised to 1.2 W/m2
K
as it then allows the use of well designed
double glazing rather than the more ex-
pensive triple glazing unit. The level of
air infiltration has been raised to 1.0 ACH
U-Value (W/m2K)
Ground floor 0.12
External wall 0.13
Roof 0.14
Windows and doors 0.80
U-Value (W/m2K)
Ground floor 0.12
External wall 0.16
Roof 0.14
Windows and doors 1.20
Infiltration level 1.0 ACH at 50Pa
Figure 2: a schematic of the NuTech integrated solar heating and HRV unit in a
passive solar house
4. CI 75
at 50 Pa – a difficult but more achievable
target which also helps reduce construc-
tion costs. Finally the energy from at least
a 6m2
evacuated tube solar array is inte-
grated into the HRV system, thus solar
heated air is being circulated to all rooms
within the house even in dull weather. The
heat generator, whether it is an internal
wood pellet boiler or an air to water heat
pump is also integrated into this system.
This fully integrated system is controlled
by way of the NuTech intelligent renew-
able energy system (IRES) controller.
As regards thermal bridging, systems have
been developed with the timber frame
company KTF Ltd., such that the amount
of thermal bridging is hugely reduced by
way of the insulation systems and partic-
ularly by way of details around the win-
dows and doors. As mentioned above, this
is vitally important. It is worth remembering
that if the thermal bridging factor in the
DEAP analysis is 0.08 W/m2
K then the U-
value for all of the elements is increased
by this amount. A wall U-value of 0.16
W/m2
K therefore becomes 0.24 W/m2
K in
the overall calculation. It is that serious.
Thispassivesolarhousesystemhasmanystrong
features. It has reasonably low U-values for
all of the fabric items, and is tested to achieve
less than 1.0 ACH at 50 Pa. It integrates the
energy from the solar array into the HRV
system, and similarly integrates energy from
the back-up boiler (internal wood pellet
or heat pump) into the HRV system.
There is also a facility to have filtered re-
circulated air within the system thereby
allowing 5 kW to 10 kW of heat to be dis-
tributed around the house, based on the
size of house. This greatly improves the
thermal response of the back-up heating
system should it be required. The venti-
lation system is designed to meet the re-
quirements of the draft Part F of the Irish
building regulations.
A unique feature is that during periods
of higher levels of solar radiation, more
fresh air is brought in by way of the HRV
system to ventilate the house to a higher
level than required by the building regu-
lations to maintain freshness within the
house. This can be done as it is using the
solar array to its optimum level and the
house is being either heated or ventilated
at a zero energy penalty.
A higher percentage of the domestic hot
water will be achieved by this system than
with the smaller array on the normal passive
house because there is twice the area of
solar collector. The NuTech passive solar
house is designed to achieve an A2 rating
on SEI’s BER scale.
A significant point with the NuTech passive
solar house is that SEI’s DEAP calculation
method allows the designer to take into account
the energy from the solar array that is being
transferred to reduce the energy demand
for space heating. This improves the BER
rating of the NuTech passive solar house
and aids the achievement of an A2 rating.
A comparison of the two concepts
In carrying out a comparison of a typical
200m2
house the various parameters were
inputted into the DEAP calculation method
such that both systems should give a
house design with an equal BER rating.
The parameters were as follows:
Both houses are designed to have the same
BER of 46 kWh/m2
/yr and are therefore
achieving an A2 rating. However, the NuTech
passive solar house offers a number of
cost and performance benefits. The ex-
ternal wall will be considerably cheaper
to build and the windows being double
as opposed to triple-glazed may be far
cheaper. The back-up heating can deliver
far more energy by way of the integrated
heating system and can therefore cope
with a far faster thermal response. More
fresh air is delivered when there is more
solar radiation available thereby giving
increased fresh air at no energy penalty.
It is suggested also that rather than having
very large areas of south-facing glazing
which may cause problems of over-heat-
ing in summer, that a larger area of solar
collector can achieve the same result without
the over-heating problem.
Conclusions
The Passivhaus Institut design and the NuTech
passive solar house both offer systems that
will perform very well in Ireland. Both
systems will deliver high levels of com-
fort at exceptionally low running costs. It
is proposed that the NuTech passive solar
house will achieve the same BER rating at
a lower capital cost.
1SEI’s Renewable Energy Information Office has
published Passive homes: Guidelines for the design
and construction of passive house dwellings in
Ireland, including specific U-value requirements
for building Irish passive housing. Visit
http://tinyurl.com/passivhausireland to access
a PDF of the document.
NuTech passive solar house passive house standard
DEAP calculation 46 kWh/m2/yr 46 kWh/m2/yr
Indicative BER A2 A2
Floor area 200 m2 200m2
Wall (U-value) 0.16 W/m2K 0.13 W/m2K
Windows & doors 1.20 W/m2K 0.80 W/m2K
Ground floor 0.12 W/m2K 0.12 W/m2K
Roof 0.14 W/m2K 0.14 W/m2K
Thermal bridging Equal Equal
Solar array 6m2 Thermomax delivering 3m2 Thermomax to domestic
energy to domestic hot water hot water only
and to the integrated HRV and
heating system
(below) In the NuTech system, the energy from the solar panels is integrated into the HRV
system (top) circulating warm air to all rooms within the house even in dull weather (mid-
dle) a NuTech/KTF passive solar house under construction at a Fingal County Council so-
cial housing scheme at Oldtown