HVAC Energy Efficiency in Commercial Buildings
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This document discusses improving energy efficiency in HVAC systems for existing non-residential buildings. It provides an overview of HVAC systems and components, outlines opportunities for energy efficiency such as upgrading controls and optimizing operations. Barriers to implementation and strategies for overcoming them are also addressed, along with various financing options available to fund efficiency projects.
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HVAC Energy Efficiency in Commercial Buildings
- 1. b 3 sustainability Prepared by Alan Richardson August 22, 2011 Prepared by Alan Richardson Stakeholders HVAC Improving energy efficiency in existing non-residential buildings
- 8. Learning objective for the course September 22, 2010 Prepared by Alan Richardson
- 9. Learning outcomes for the course August 22, 2011 Prepared by Alan Richardson
- 10. Learning outcomes cont. September 22, 2010 Prepared by Alan Richardson Printed on recycled paper
- 12. So where are you at? August 22, 2011 Prepared by Alan Richardson as an individual? as an organisation? Conscious Competent Unconscious Not Yet Competent Unconscious Competent Conscious Not Yet Competent
- 22. Australia ’s marginal abatement cost curve Low cost High cost Source: ClimateWorks
- 23. Australian building’s marginal abatement cost curve Low cost options High cost options Source: ClimateWorks
- 25. Central HVAC Air Handling Unit (AHU) AHU Chiller HWS Building Management System Cooling tower Diffuser Outside air intake Pumps with VSDs Heating coil Cooling coil Variable Speed Drive VSD VSD AHU Air Handling Unit (AHU) Variable Air Valve (VAV)
- 26. Central HVAC Air Handling Unit (AHU) AHU Chiller HWS Building Management System Cooling tower Diffuser How the cooling cycle in a central HVAC system Pumps with VSDs Heating coil Cooling coil Variable Speed Drive VSD VSD AHU AHU
- 27. Self contained packaged HVAC August 22, 2011
- 32. Drivers for energy efficiency decisions in large tenanted commercial buildings August 22, 2011 Prepared by Alan Richardson Source: ClimateWorks
- 34. What to do and when? Source:
Editor's Notes
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation
- The Air-conditioning Comfort Chart was developed following the collection of a very large sample of data from people who were subjected to a range of combinations of temperature and humidity in an air-conditioned space and asked to nominate their degree of comfort. It indicates the range of comfort conditions in winter and in summer when participants were wearing appropriate clothing for each season. The chart also indicates the area where most of the people are comfortable most of the time whether they are wearing winter or summer clothing. By setting air-conditioning system controls to maintain conditions within the appropriate range for winter (20-24) or summer (23-26) conditions this will result in significant energy savings relative to the situation