Growing and potential impacts of climate change, such as flooding in coastal areas, change in weather patterns, and melting of the permafrost have created new challenges for the engineering and construction industry. These challenges involve adaptation in the design and construction of projects to address these impacts, as well as developing ways to reduce and controlling greenhouse gas (GHG) emissions to mitigate climate change.
Engineering has the lead responsibility for determining the technical feasibility and cost parameters to overcome these challenges. Engineering and construction projects are implemented with the help of a set of standard documents that lay out the work process of the projects. They include standard design detail drawings, standard design criteria, standard specifications, design guides and work process flow diagrams. Incorporating in these standard documents materials and processes which assist project engineers to identify and assess climate change related impacts can be a major step in effectively preparing to meet the challenges of climate change mitigation and adaptation.
Climate Change: Implications for BuildingsECFoundation
The Fifth Assessment Report from the Intergovernmental Panel on Climate Change is the
most comprehensive and relevant analysis of our changing climate. It provides the scientific fact base that will be used around the world to formulate climate policies in the coming years. This document is one of a series synthesizing the most pertinent findings
of AR5 for specific economic and business sectors. It was born of the belief
that the building sector could make more use of AR5, which is long and
highly technical, if it were distilled into an accurate, accessible, timely, relevant and readable summary. Although the information presented here is a ‘translation’ of the key
content relevant to this sector from AR5, this summary report adheres to
the rigorous scientific basis of the original source material. The basis for information presented in this overview report can be found in the fully-referenced and peer-reviewed IPCC technical and scientific background reports at: www.ipcc.ch
Green buildings are Eco-friendly, resource efficient and are very energy efficient. They are more comfortable and easier to live with due to low operating and owning costs.
This presentation consists of brief introduction about green buildings, their design and benefits.
Best Regards:
Engr. Muhammad Ali Rehman
Green building rating system equire an integrated design process to create projects that are environmentally responsible and resource-efficient throughout a building's life-cycle: from siting to design, construction, operation, maintenance, renovation, and demolition
It is all about sustainable buildings or green buildings and a brief study of some sustainable building materials we can use for making a building sustainable and green.
SUSTAINABLE, ENERGY EFFICIENT BUILDING MATERIALS AND TECHNOLOGIESSamanth kumar
SUSTAINABLE, ENERGY EFFICIENT BUILDING MATERIALS AND TECHNOLOGIES, M.ARCH (ENVIRONMENTAL ARCHITECTURE) ANNA UNIVERSITY SECOND SEMESTEREnergy Efficient Construction Technology
➔ Filler Slab
➔ Rat trap Bond
➔ Technologies developed by CBRI
➔ Traditional Building Construction Technologies
➔ Concept of Resource rescue,
➔ Concept of Recycled content,
➔ Concept of Regional materials,
➔ Energy Efficiency
➔ Energy Conservation
➔ Recourse Consumption
➔ Distribution of Energy use in India
➔ Factors affecting the Energy use in Buildings
➔ Pre Building Stage, Construction Stage & Post Occupancy stages
➔ Concept of Embodied Energy
➔ Energy needs in Production of Materials
➔ Transportation Energy
➔ Concept of light footprint on Environment
Climate Change: Implications for BuildingsECFoundation
The Fifth Assessment Report from the Intergovernmental Panel on Climate Change is the
most comprehensive and relevant analysis of our changing climate. It provides the scientific fact base that will be used around the world to formulate climate policies in the coming years. This document is one of a series synthesizing the most pertinent findings
of AR5 for specific economic and business sectors. It was born of the belief
that the building sector could make more use of AR5, which is long and
highly technical, if it were distilled into an accurate, accessible, timely, relevant and readable summary. Although the information presented here is a ‘translation’ of the key
content relevant to this sector from AR5, this summary report adheres to
the rigorous scientific basis of the original source material. The basis for information presented in this overview report can be found in the fully-referenced and peer-reviewed IPCC technical and scientific background reports at: www.ipcc.ch
Green buildings are Eco-friendly, resource efficient and are very energy efficient. They are more comfortable and easier to live with due to low operating and owning costs.
This presentation consists of brief introduction about green buildings, their design and benefits.
Best Regards:
Engr. Muhammad Ali Rehman
Green building rating system equire an integrated design process to create projects that are environmentally responsible and resource-efficient throughout a building's life-cycle: from siting to design, construction, operation, maintenance, renovation, and demolition
It is all about sustainable buildings or green buildings and a brief study of some sustainable building materials we can use for making a building sustainable and green.
SUSTAINABLE, ENERGY EFFICIENT BUILDING MATERIALS AND TECHNOLOGIESSamanth kumar
SUSTAINABLE, ENERGY EFFICIENT BUILDING MATERIALS AND TECHNOLOGIES, M.ARCH (ENVIRONMENTAL ARCHITECTURE) ANNA UNIVERSITY SECOND SEMESTEREnergy Efficient Construction Technology
➔ Filler Slab
➔ Rat trap Bond
➔ Technologies developed by CBRI
➔ Traditional Building Construction Technologies
➔ Concept of Resource rescue,
➔ Concept of Recycled content,
➔ Concept of Regional materials,
➔ Energy Efficiency
➔ Energy Conservation
➔ Recourse Consumption
➔ Distribution of Energy use in India
➔ Factors affecting the Energy use in Buildings
➔ Pre Building Stage, Construction Stage & Post Occupancy stages
➔ Concept of Embodied Energy
➔ Energy needs in Production of Materials
➔ Transportation Energy
➔ Concept of light footprint on Environment
This seminar was presented by me on 2008, Although the rating point changes on the past years, still the body contains many rich information and case studies related to green buildings and sustainable design.
Materials are the starting point for architectural design.An architect needs to understand the nature of materials and their possibilities and limitations before they can be used to create buildings and spaces.
sustainable achitecture - introduction - design - need for it - elements - green roof , solar shingles , rain harvesting , cob houses - techniques - examples
Green Building: Sustainable Architecture
Environmentally responsible and resource efficient building design. Architecture that minimizes the negative environmental impact of buildings by efficiency in the use of materials and energy. Goal: to effectively reduce the overall impact of the built environment on human health and the natural environment and increase comfort and livability. Consistent with AIA sponsored Architecture Challenge 2030.
McNaughton Architectural Inc. | http://mna-p.com
300 E State St Suite 360, Redlands, CA 92373
(909) 583-1806
Sustainable architecture is architecture that seeks to minimize the negative environmental impact of buildings by efficiency and moderation in the use of materials, energy, and development space.
Sustainable architecture uses a conscious approach to energy and ecological conservation in the design of the built environment.
The idea of sustainability, or ecological design, is to ensure that our actions and decisions today do not inhibit the opportunities of future generations.
India’s announcing an ambitious target of net-zero emissions by 2070 at COP26, the upcoming budget is likely to offer some incentives to encourage construction of Green buildings to achieve India’s Net Zero goals.
amount of energy used is equal to amount of renewable energy created on the site
reduce carbon emissions & reduce dependence on fossil fuels
Buildings that produce a surplus of energy over the year are called “Energy Surplus Buildings”
During the last 20 years more than 200 reputable projects claiming net zero energy balance have been realized all over the world.
NZEB buildings consequently contribute less overall greenhouse gas to the atmosphere than similar non-ZNE buildings. They do at times consume non-renewable energy and produce greenhouse gases, but at other times reduce energy consumption and greenhouse gas production elsewhere by the same amount. Traditional buildings consume 40% of the total fossil fuel energy in all over the world and are significant contributors of greenhouse gases.
This is a seminar made on sustainable architecture, containing
INTRODUCTION
NEED
METHODS
ELEMENTS
PRINCIPLES
DESIGN STRATEGY
SUSTAINABLE MATERIALS
RENEWABLE ENERGY GENERATION
TYPES
EXAMPLES
REFERENCES.
Design for Future Climate: Adapting Buildings, June 2010 Innovate UK
Design for future climate: adapting buildings (2010) provides the framework for undertaking a risk assessment and developing an adaptation strategy in the built environment.
Infographic: Buildings and Climate Change ECFoundation
The Fifth Assessment Report from the
Intergovernmental Panel on Climate Change is the
most comprehensive and relevant analysis of our
changing climate. It provides the scientific fact base
that will be used around the world to formulate
climate policies in the coming years.
This document is one of a series synthesizing the most pertinent findings
of AR5 for specific economic and business sectors. It was born of the belief
that the agriculture sector could make more use of AR5, which is long and
highly technical, if it were distilled into an accurate, accessible, timely,
relevant and readable summary.
Although the information presented here is a ‘translation’ of the key
content relevant to this sector from AR5, this summary report adheres to
the rigorous scientific basis of the original source material.
Grateful thanks are extended to all reviewers from both the science and
business communities for their time, effort and invaluable feedback on
this document.
The basis for information presented in this overview report can be found
in the fully-referenced and peer-reviewed IPCC technical and scientific
background reports at: www.ipcc.ch
This seminar was presented by me on 2008, Although the rating point changes on the past years, still the body contains many rich information and case studies related to green buildings and sustainable design.
Materials are the starting point for architectural design.An architect needs to understand the nature of materials and their possibilities and limitations before they can be used to create buildings and spaces.
sustainable achitecture - introduction - design - need for it - elements - green roof , solar shingles , rain harvesting , cob houses - techniques - examples
Green Building: Sustainable Architecture
Environmentally responsible and resource efficient building design. Architecture that minimizes the negative environmental impact of buildings by efficiency in the use of materials and energy. Goal: to effectively reduce the overall impact of the built environment on human health and the natural environment and increase comfort and livability. Consistent with AIA sponsored Architecture Challenge 2030.
McNaughton Architectural Inc. | http://mna-p.com
300 E State St Suite 360, Redlands, CA 92373
(909) 583-1806
Sustainable architecture is architecture that seeks to minimize the negative environmental impact of buildings by efficiency and moderation in the use of materials, energy, and development space.
Sustainable architecture uses a conscious approach to energy and ecological conservation in the design of the built environment.
The idea of sustainability, or ecological design, is to ensure that our actions and decisions today do not inhibit the opportunities of future generations.
India’s announcing an ambitious target of net-zero emissions by 2070 at COP26, the upcoming budget is likely to offer some incentives to encourage construction of Green buildings to achieve India’s Net Zero goals.
amount of energy used is equal to amount of renewable energy created on the site
reduce carbon emissions & reduce dependence on fossil fuels
Buildings that produce a surplus of energy over the year are called “Energy Surplus Buildings”
During the last 20 years more than 200 reputable projects claiming net zero energy balance have been realized all over the world.
NZEB buildings consequently contribute less overall greenhouse gas to the atmosphere than similar non-ZNE buildings. They do at times consume non-renewable energy and produce greenhouse gases, but at other times reduce energy consumption and greenhouse gas production elsewhere by the same amount. Traditional buildings consume 40% of the total fossil fuel energy in all over the world and are significant contributors of greenhouse gases.
This is a seminar made on sustainable architecture, containing
INTRODUCTION
NEED
METHODS
ELEMENTS
PRINCIPLES
DESIGN STRATEGY
SUSTAINABLE MATERIALS
RENEWABLE ENERGY GENERATION
TYPES
EXAMPLES
REFERENCES.
Design for Future Climate: Adapting Buildings, June 2010 Innovate UK
Design for future climate: adapting buildings (2010) provides the framework for undertaking a risk assessment and developing an adaptation strategy in the built environment.
Infographic: Buildings and Climate Change ECFoundation
The Fifth Assessment Report from the
Intergovernmental Panel on Climate Change is the
most comprehensive and relevant analysis of our
changing climate. It provides the scientific fact base
that will be used around the world to formulate
climate policies in the coming years.
This document is one of a series synthesizing the most pertinent findings
of AR5 for specific economic and business sectors. It was born of the belief
that the agriculture sector could make more use of AR5, which is long and
highly technical, if it were distilled into an accurate, accessible, timely,
relevant and readable summary.
Although the information presented here is a ‘translation’ of the key
content relevant to this sector from AR5, this summary report adheres to
the rigorous scientific basis of the original source material.
Grateful thanks are extended to all reviewers from both the science and
business communities for their time, effort and invaluable feedback on
this document.
The basis for information presented in this overview report can be found
in the fully-referenced and peer-reviewed IPCC technical and scientific
background reports at: www.ipcc.ch
Presentation on using industrial waste water in making of plain concrete @ in...Raghavendra Rachamadugu
Improving ‘waste reduction’ and ‘recycling techniques’ is currently being advocated worldwide. For transforming our words into action, finding a remedy became imperative. Our intentions drifted our attention towards efficiency of water treatment, dissipation of wealth for partially recovering its potability and conserving the precious water resource for sustainable development. With the world advancing in concrete technology and growing scarcity of usable water, we are compelled to start with replacing the use of potable water in construction by ‘industrial waste water’. The feasibility of using industrial effluents as mixing water and the effect of its constituents on cement mortar properties were experimentally evaluated. Cement mortar specimens were cast using crude waste water and deionised water for comparison. This paper examines the effect of industrial waste water (from electroplating industry) on cement mortar properties like setting time, density and compressive strength. Using fairly conservative assumptions regarding the life of concrete prepared using water tainted with metallic ions, the rate of chemical deterioration and with a greater emphasis on cost effectiveness, it can be shown that this breakthrough most likely achieves overall positive social benefits.
GREEN BUILDING STRATEGIES & PROJECT MANAGEMENT PRACTICES FOR A SUSTAINABLE FU...Raghavendra Rachamadugu
Buildings and homes (or the “built environment”) affects natural environment. Buildings, where people spend 90% of their time, adversely impact human health. Buildings also account for 40% of energy and 16% of the water used annually worldwide. Air quality inside buildings is 2 to 5 times worse than outside
There are many factors to consider while studying the impacts of buildings
• Land use and ecosystems where buildings are built
• Materials and practices used to construct buildings
• Material, chemical, energy and water resources used to maintain and operate buildings
• Demolition and waste of a building at the end of its life
Green Building involves minimizing these negative environmental and human health impacts and enhancing positive results throughout the building’s entire life cycle. In addition to environmental benefits, through integrated design, they can be constructed at the same or lower cost than conventional buildings.
Today, buildings are responsible for more than 40% of global energy used, and as much as one third of global greenhouse gas emissions, both in developed and developing countries. In absolute terms, it is estimated that building-related GHG emissions to be around 8.6 billion metric tons CO2 eqv in 2004. What is particularly worrying is the rate of growth of emissions: between 1971 and 2004, carbon dioxide emissions, including through the use of electricity in buildings is estimated to have grown at a rate of 2.5% per year for commercial buildings and at 1.7% per year for residential buildings. Furthermore, the Buildings and Construction Sector is also responsible for significant non-CO2 GHG emissions such as halocarbons, CFCs, and HCFCs (covered under the Montreal Protocol), and hydro fluorocarbons (HFCs), due to their applications for cooling, refrigeration, and in the case of halocarbons, insulation materials. According to a survey published in 2007, one-third of population believe that global warming is the world’s most critical environmental problem, nearly double the amount of people who agreed with the same statement in 2006 Faiola and Shulman 2007.
Climate Change Hazards in Pakistan. A presentation by Saima Abbasi. www.saima...Saimaabbasi12
I developed a power point presentation on Climate Change hazards in Pakistan with some basic concepts, hazards facing with its impacts and future suggestions. Also linked it with global thoughts and suggestions relevant to my country showing that what steps could be taking to minimize CC impacts. It can be accessed on www.saimaabbasi.net. Target audience is mass including students at school, university and general public ( Private and government offices). Presentation is made in response to final project Turn Down the Heat: Why a 4°C Warmer World Must be Avoided online course conducted by World Bank Group.
The slides contain the situation of climate change impacts and risk in Pakistan. This presentation also provides a set of key possible climate change interventions for the Pakistan Red Crescent.
CASE STUDY ON CRACKS AND ITS REMEDIAL MEASURESPrabhu Saran
this project is about the buildings cracks and its repair techniques.
most common methods adopted in this project.
ppt created with office'13... make it useful for ur work.
Building Design has become very complex and National Building Code 2005 recommends that there should be an integrated approach for the design from the very beginning. This has to be achieved by team work, with the team consisting of the Architect, Structural and Services (Electrical, Mechanical, Air-conditioning, Plumbing, Sanitary) engineers.
BCI Equinox 2022 - CLB Kien Truc Xanh - Ms PhanThuHang - ENARDOR
Ms. Hang Phan has been the Chair of Vietnam Green Building Council (VGBC) since 2018, responsible for the VGBC Board of Directors to formulate strategic directions of the Council that drive the green building agenda for Vietnam. Ms. Hang has over 20 years’ experience in building science. Her first major is in Architecture before extending the scope to building management and material, and currently is the APAC Sustainable Market Development Director in Saint-Gobain.
She is also a certified Coach & Trainer, especially for Sustainability coaching, helping to make conscious choices for a new lifestyle, in harmony with nature.
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Về BCI:
Tập đoàn Truyền thông Xây dựng BCI hoạt động báo cáo các dự án xây dựng tương lai trong khu vực châu Á Thái Bình Dương.
BCI là cầu nối thông tin giữa các chuyên gia tư vấn thiết kế đang tìm kiếm sản phẩm để chỉ định cho các dự án và các nhà cung cấp đang tìm cách thông báo cho các nhà thiết kế về những sản phẩm và công nghệ xây dựng mới. Để làm điều đó, BCI tiến hành hơn 250.000 buổi gặp mặt và điện thoại phỏng vấn với kiến trúc sư, chủ đầu tư, kỹ sư và nhà thầu mỗi năm, báo cáo các dự án với tổng giá trị khoảng 400 tỷ đô la Mỹ.
Bên cạnh việc đề cao sự minh bạch và hiệu quả thông qua dịch vụ nghiên cứu, BCI cũng xuất bản tập san FuturArc, Construction+ và các tạp chí kiến trúc khác.
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Về Câu lạc bộ Kiến trúc Xanh TP.HCM (CLB KTX TP.HCM):
Câu lạc bộ Kiến trúc Xanh TP.HCM được thành lập vào tháng 09/2011 là nơi tập hợp các thành viên từ nhiều lĩnh vực, có cùng quan tâm và nhiệt huyết trong việc thúc đẩy sự phát triển các Công trình Xanh tại Việt Nam.
Trải qua gần 11 năm hoạt động, cùng sự hỗ trợ của Trung tâm Tiết kiệm Năng lượng TP.HCM và Hội Kiến trúc sư TP.HCM trong thời gian đầu, CLB KTX TP.HCM ngày càng phát triển với số lượng thành viên chính thức hơn 500 người, tổ chức được nhiều Hội thảo chuyên ngành lớn về kiến trúc, quy hoạch, cảnh quan, nhà ở, vật liệu, trang thiết bị, công nghệ và năng lượng xanh, v.v.
Các hội thảo được CLB tổ chức theo hướng trao đổi kiến thức, chia sẻ giải pháp và ứng dụng thực tiễn, với sự tham gia của các đơn vị đồng hành và đặc biệt là của các chuyên gia cùng lĩnh vực ở cả trong và ngoài nước.
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- News: https://www.futurarc.com/new/bci-equinox-ho-chi-minh-city-focuses-on-net-zero-carbon-and-wellness/
- News: https://www.constructionplusasia.com/vi/bci-equinox-2022-chu-de-net-zero-carbon-wellness/
A Canadian study using the Engineers Canada protocol for assessing the effect of climate change. Key findings include: need for building code revision to adapt design parameters to address climate change and need to provide accommodation for cooling in existing buildings particularly having aging occupancy.
The Hyderabad Metropolitan Area spreads over 1905 Sq.Kms. This area is greater than that of other metropolitan cities like Delhi, Calcutta, Bangalore and Chennai. HUDA is a nodal agency for promoting planned development of the city which makes it automatically the nodal agency for studying and implementing transport related projects within the urban agglomeration.
Earthquake: the word itself feels disastrous. Though the earthquake has no direct effect on human being, but still it causes a plenty of life and property loss. The reason is earthquake tends to fail the various structures such as buildings, houses, bridges, roads etc. and this failure causes all losses. The following pictures shows some of the failure of structures due to earthquake. But please hold for a minute, in case of the following failed structures, it was possible to prevent the failure…… Because these structures are not failed only due to earthquake but because of failure of soil strata bellow the structure due to the earthquake. And if the soil was improved before construction the failure could be avoided.
This phenomenon of failure of soil strata during earthquake is called as the “Soil Liquefaction”. Liquefaction is responsible for extreme property damage & loss of life due to several variations in failure potential. Still the liquefaction is not given that much importance. In India during Bhuj Earthquake lots of structures are collapsed due to liquefaction itself. And there are many liquefaction prone areas are present in zone IV in India. That’s why liquefaction is very much important.
In this paper, the study of liquefaction is done with respect to its introduction, properties of soil in which the liquefaction may occurs, how exactly the liquefaction takes place, detailed Geotechnical Study of liquefaction which includes how to decide the liquefaction prone area, evaluation of liquefaction potential and the various old and recent remedial measures to avoid the liquefaction, along with software and Artificial Neural Network. So that one can become safe against Liquefaction.
One of the major adventures of civilization is construction .With the passing times in growth of population, today construction activity is at its peak .Even with the advancement of technology the quality of construction largely depends upon the ingredients used to construct any building. One such ingredient is sand, which is one of the most essential components to give shape to the dreams of the people. Natural sand has been the main source of fine aggregates, since man began to use concrete and masonry. The fact remains undisputed that the river sand that has been produced by rivers in natural processes has not increased for ages. Down the years, these river sand deposits have been exploited to the fullest extent. This indiscriminate exploitation causing almost an irreversible damage to the river system are leading to ecological damage, ground water depletion, water scarcity and fall in farm production. Above all, illegal quarrying and use of filter sand is nothing but playing with human lives. Most of the state governments of India are imposing environmental ban on the dredging operations and all sand quarrying operations in most of the areas. This leads to the development of another latest technology, alternative to the river sand –ROBOSAND
Presentation on rating & strengthening of bridges @ jntu hyd by raghavendraRaghavendra Rachamadugu
Rating is evaluation of safe load carrying capacity of existing bridges. There are different systems for rating in the world. In India mainly analytical, load testing and correlation methods are followed. Rating has reduced economic burden on authorities for some time. Rating has provided people with direction for follow up actions such as repairs, strengthening rehabilitation. It is becoming preferable, both environmentally and economically to upgrade bridges rather than to demolish and rebuild them. Deterioration of bridges wear from environmental influences and from traffic loads require rehabilitation and renewal programs to maintain even current service levels on the bridge infrastructure network. Demands for high durability, longer service life, reduced maintenance cost and cost/performance optimized. This paper deals with the rating of bridges and different methods of strengthening with its world wide applications.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
3. INTRODUCTION
:
New challenges for the construction industry
• Impacts of climate change
• Design to reduce GHG emissions
Engineering has the lead responsibility
• For determining the technical feasibility and cost
Set of standard documents
• Standard design detail drawings, standard design
criteria, standard specifications
• Design guides and work process flow diagrams
4. Climate change & Potential
Impacts:
Climate Change
How Will Climate Change
The Contribution of Buildings to Climate Change
The Impact of Climate Change on Construction
Potential Impacts On Development
5. Climate Change:
?
IPCC declared that ‘warming of the climate system is unequivocal’
– Changes in temperatures
– Hot extremes, heat waves and heavy precipitation events
– Tropical cyclones with larger peak wind speeds
– Heavy precipitation associated with ongoing increases of
tropical sea surface temperatures.
– Decreases in snow cover
6. How will Climate Change:
?
All parts of the world will experience significant changes
in climate over this century. These changes can be summarised as:
–
–
–
–
–
–
–
Hotter, drier summers
Milder, wetter winters
More frequent extreme high temperatures
More frequent extreme winter precipitation
Significant decreases in soil moisture content in the summer
Net Sea level rise and increases in sea surge height
Possible higher wind speeds
7. The Contribution of Buildings:
Today, buildings are responsible for more than 40 percent of
global energy used, and as much as one third of global greenhouse
gas emissions, both in developed and developing countries.
In absolute terms:
•8.6 billion metric tons CO2 eqv in 2004
•15.6 billion metric tons CO2 eqv. by 2030 (expected)
Furthermore, the Buildings and Construction Sector is also
responsible for significant non-CO2 GHG emissions such as
halocarbons (CFCs and HCFCs) and hydro fluorocarbons (HFCs)
due to their applications for cooling, refrigeration, and in the case of
halocarbons, insulation materials.
8. The Impact on Construction:
Climatic factors
Soil Drying
Temperature
Relative Humidity
Precipitation
Impacts
Increase will affect water tables and could affect foundations in
clay soils
Maximum and minimum changes will affect heating, cooling, air
conditioning costs and thermal air movement. Frequency of
cycling through freezing point will affect durability.
Increase will affect condensation and associated damage or
mould growth
Increase and decrease will affect water tables (foundations and
basements); cleaning costs will be increased in winter, with
associated redecoration requirements.
Gales
Increase will affect need for weather tightness, risk of water
ingress, effectiveness of air conditioning, energy use, risk of roof
failures
Radiation
Increase may affect need for solar glare control
Cloud
Increase in winter will increase the need for electric lighting;
reduction in summer may reduce the need for electric lighting for
certain buildings
9. Impacts
Components,
sub-structures and
whole buildings
Air conditioning
Need to upgrade airtightness
Basements
(sub-structure)
Increased risk of heave or subsidence, water ingress,
consequential damage to finishes and stored items
Materials
Plastics life is reduced due to increased radiation Increased
salt spray zone in marine areas will reduce life duration
Roofs
Increased fixing costs and risk of failures due to gales,
wind and Precipitation
Increased cleaning costs due to wind, gales, relative
humidity, precipitation. May alter construction costs and
period owing to wet weather and associated loss of
production.
Whole building
Structure/cladding/ Increased risk of cracking due to different thermal or
renders/Membranes moisture movements
Timber-framed
Construction
Increased risk of failure due to increase in relative
humidity, depending on design
10. OPTIMIZING THE DESIGN PROCESS:
In many respects designing to meet climate change challenges
is sustainable design. A project execution approach integrating the
following concepts for sustainable engineering, procurement and
construction (S-EPC) is directly relevant to designing for climate
change:
•Site master planning and design for ecology
•Process design to conserve water, energy and other natural resources
•Passive design of facilities to save energy in plant and building operations, e.g.
Energy Star® roofs or green (vegetated) roofs; adequate insulation of building
walls, roofs, pipes, ducts and vessels, to minimize fossil-fuelled power
consumption and emissions
•High-efficiency HVAC and electrical systems including high-performance
lighting systems integrated with daylighting and smart controls
•Onsite renewable energy with energy storage for peak use, meeting the power
demand that has been reduced by all of the above concepts, and resulting in
reduced fossil fuel demand / emissions.
•Eco-purchasing and contracting: “greening” the supply chain to minimize
climate change impacts of the supply chain.
11. CONCEPTUAL DESIGN:
The conceptual design phase is when sustainable design,
climate change mitigation and adaptation features can be most easily
incorporated into a project.
During conceptual design, the integrated sustainable design team
evaluates design alternatives. Project facilities, process and mechanical
equipment, and building components or features should be evaluated based on
their sustainability as well as feasibility and cost-effectiveness. The team should
consider the maturity of the technology of the building, facility or process
feature; the capital expenditure (i.e., first cost) required to procure, install, and
implement the facility, building or process feature under consideration.
Consider alternatives to:
•Maximize energy efficiency and minimize GHG emissions:
•Maximize water efficiency:
•Minimize the embodied energy and carbon content of materials:
12. PRELIMINARY DESIGN:
During preliminary design develop the facility energy model to
confirm the design meets the established performance goals; calculate
facility operations GHG emissions and materials embodied carbon
content; develop a facility life-cycle cost estimate; include building
information in the 3-D model. Periodically update these calculations and
verify the project continues to meet the sustainable design performance
goals as design progresses.
The following tasks are included in this design phase:
•Include sustainable engineering concepts in system design descriptions and
facility design descriptions. Right-size systems and facilities using software
models (not conventional rules-of thumb), avoid over-design.
•Identify energy consumption by category, e.g., internal loads from the
processes, building envelope loads (heat losses / gains through walls, roofs,
etc.), ventilation requirements, and others.
13. Contd…
• Identify energy interactions between systems and opportunities for
reductions in energy requirements and cost savings through energy
efficiency measures.
• Develop alternative design solutions to reduce energy loads and evaluate
systems as a whole.
• Iterate these optimization steps and refine the system selection / design to
arrive at the optimized combination of systems for energy efficiency and
emissions reduction.
• Update the energy model, emissions calculations, cost estimate and 3-D
model to reflect the design, as it develops.
Conduct a second review of progress toward meeting energy and
emissions goals on the project, after the design concept is developed. This
review can be concurrent with other required design reviews and is
intended to confirm continued progress toward meeting the established
sustainable design criteria.
14. DETAILED DESIGN &
CONSTRUCTION :
Continue to promote an integrated work process among all
disciplines to assure continued implementation of the established energy
efficiency and emissions reduction goals. Specify low embodied CO2
and energy content materials. Include embodied energy and CO2
evaluation criteria in technical bid evaluations. Specify materials
available locally.
Consider construction waste management options, construction
vehicle options, etc.
Finalize the:
•Energy model
•3-D model with building information
•GHG emissions calculations
•Life-cycle cost estimate
Conduct a third and final review of the design relative to the energy
efficiency and emissions reduction goals.
15. ENERGY EFFICIENCY
MODELS:
THERE ARE DIFFERENT LOGICS in pursuing the energy
efficiency of buildings, ranging from lower to higher technological
approaches. These are models that can be applied to improve energy
efficiency in buildings;
• Low- and zero-energy buildings
• Passive housing de-sign
• Energy-plus buildings
• EcoCities
• Refurbishment aspects
• Commissioning processes.
16. Low Energy Buildings:
The Definition of low-energy building can be divided into two
specific approaches:
The concept of 50% & The concept of 0%
A building constructed using the 50% concept consumes only
one half of the heating energy of a standard building.
The low energy consumption is based on an increased level of
thermal insulation, high performance windows, airtight structural
details and a ventilation heat recovery system.
In USA-Arizona, USA-Grand Canyon (California), Belgium,
Canada, Denmark, Finland, Germany, Italy, Japan, the Netherlands,
Norway, Sweden and Switzerland zero energy buildings were built.
17. Zero Energy Buildings:
Zero-energy buildings(an ultra-low-energy buildings) are buildings
that produce as much energy as they consume over a full year.
Energy can be stored on site, in batteries or thermal storage.
The grid can be used as seasonal storage via net metering, as some
buildings produce more in the summer and use more in the winter, but
when the annual accounting is complete, the total net energy use must
be zero. Buildings that produce a surplus of energy are known as
energy-plus buildings.
The Worldwide Fund for Nature (WWF) zero-energy housing
project in the Netherlands & The Malaysia Energy Centre (Pusat
Tenaga Malaysia) headquarters are zero-energy office (ZEO)
buildings.
18. Passive Houses:
A passive house is a building in which a comfortable interior
climate can be maintained with-out active heating and cooling systems.
The house heats and cools itself, and is therefore ‘passive’.
Characteristics of passive houses
Compact form and good insulation:
U-Factor <=0.15W/(m2K)
Orientation and shade considerations:
Passive use of solar energy
Energy-efficient window glazing and U-Factor <=0.80W/(m2K) {glazing and frames, combined}
frames:
solar heat-gain coefficients around 50%
Building envelope air-tightness:
Air Leakage <=0.61/hour
Passive pre heating of fresh air:
Fresh air supply through underground ducts that exchange
heat with the soil. This preheats fresh air to a temperature
above 5oC, even on cold winter days
Highly efficient heat recovery from Heat recovery rate over 80%
exhaust air:
Hot water supply using regenerative Solar collectors or Heat pumps
energy sources:
Energy-saving household appliances:
Low energy refrigerators, stoves, freezers, lamps, washers,
dryers, etc. are indispensable in a passive house
19. Eco Cities:
In order to render the building energy efficient, the whole
energy chain has to be considered, including the local environmental
conditions, community issues, transportation systems and working and
living structures.
Eco Cities are settlement patterns for sustainable cities, which
were developed in a project supported by the European Union. The
energy chain for buildings in Eco Cities includes the following items:
>
Low-energy houses;
>
Low-temperature heating systems;
>
Low-temperature heat distribution system;
>
Use of renewable energy sources whenever possible;
>
Heat production as near as possible;
>
Electricity production;
20. CONCLUSIO
N to
Designing : meet the challenges of climate change
does not require a completely new design process.
Incorporating sustainable design considerations into the
conventional design process can result in more energy efficient
and lower GHG emitting designs if sustainable design
performance goals are set early in the project development and
regularly monitored to assure the evolving design continues to
support achieving the goals.
And when considered in the context of the overall life-
cycle cost of a project, sustainable design will reduce life-cycle
costs and produce significant benefits for climate change.
21. REFERENCES
:
Dr. R. B. Draper, Dr. P Attanayake (2010),” DESIGNING TO
MEET CLIMATE CHANGE CHALLENGES”, International
Conference on Sustainable Built Environment (ICSBE-2010).
Sylvie Lemmet, (2010), “SUSTAINABLE BUILDINGS AND
CLIMATE INITIATIVE”, Sustainable united Nations.
“BUILDINGS AND CLIMATE CHANGE” - Status, Challenges and
Opportunities by United Nations Environment Programme, 2007.
Gardiner, Theobald (2006), “ADOPTING TO CLIMATE CHANGE
IMPACTS: A good practice guide for sustainable communities”.
Michael J. Holmes, Jacob N. Hacker (2007), “CLIMATE CHANGE,
THERMAL COMFORT AND ENERGY: Meeting the design
challenges of the 21st century”
N.J. Cullen BSc(Hons), “CLIMATE CHANGE –DESIGNING
BUILDINGS WITH A FUTURE”, National Conference 2001
MarkSnow, Deo Prasad (2011), “CLIMATE CHANGE ADAPTION
FOR BUILDING DESIGNERS”, Australian Institute of Architects.