The building concept - BRE projects website
... Building concept Low heating consumption Summer comfort Indoor Air Quality Monitoring results Major findings More information... ...
... Building concept Low heating consumption Summer comfort Indoor Air Quality Monitoring results Major findings More information... ...
California State University, Monterey Bay Tanimura and Antle Family
... totals, the library emits an average of 3.76 tons of CO2/ft2 · yr, a reduction of 1.08 tons below the proposed building’s emissions. UFAD systems also provide several advantages in indoor air quality and thermal comfort. Occupants have increased control of their ...
... totals, the library emits an average of 3.76 tons of CO2/ft2 · yr, a reduction of 1.08 tons below the proposed building’s emissions. UFAD systems also provide several advantages in indoor air quality and thermal comfort. Occupants have increased control of their ...
Aalborg Universitet Heiselberg, Per Kvols
... votes from a large group of people on a thermal sensation scale from -3 to +3 [9], can be increased from ± 0.5 to ± 0.7 for indoor spaces, corresponding to a predicted percentage of dissatisfied people (PPD) of less than 15 %, and ± 1.5 for circulation zones, where PPD no longer applies [10]. Furth ...
... votes from a large group of people on a thermal sensation scale from -3 to +3 [9], can be increased from ± 0.5 to ± 0.7 for indoor spaces, corresponding to a predicted percentage of dissatisfied people (PPD) of less than 15 %, and ± 1.5 for circulation zones, where PPD no longer applies [10]. Furth ...
answer key
... in Phoenix is much drier than the air in Miami. Because moist air retains heat more effectively, the overnight temperature in Miami was close to the daytime maximum. In Phoenix, the air is very dry and thus does not easily retain heat. Heat gained during the day is lost at night, but the greenhouse ...
... in Phoenix is much drier than the air in Miami. Because moist air retains heat more effectively, the overnight temperature in Miami was close to the daytime maximum. In Phoenix, the air is very dry and thus does not easily retain heat. Heat gained during the day is lost at night, but the greenhouse ...
Hurt Building: Atlanta, GA - High Performing Buildings
... motion sensors in all common area restrooms to provide lighting control when these areas are not inhabited. As for the future, the building management system will be used to provide lighting control in many common areas to reduce the light levels during unoccupied times. Stairwell lighting control i ...
... motion sensors in all common area restrooms to provide lighting control when these areas are not inhabited. As for the future, the building management system will be used to provide lighting control in many common areas to reduce the light levels during unoccupied times. Stairwell lighting control i ...
Experience on Commissioning of Heating/Cooling System and
... sense, an infrared thermo-camera is very effective. Even though, other methods should be developed for the location such as crawl space, and also simple measuring method of the overall heat transfer coefficient5) is highly required. ...
... sense, an infrared thermo-camera is very effective. Even though, other methods should be developed for the location such as crawl space, and also simple measuring method of the overall heat transfer coefficient5) is highly required. ...
Passive Cooling Ideas for the Southeast
... clerestory ceilings, and large window areas, can make a home particularly expensive to air condition mechanically. As a homeowner you may want to use combinations of passive techniques that will allow you to use mechanical air conditioning occasionally without heavy losses due to heat gain through w ...
... clerestory ceilings, and large window areas, can make a home particularly expensive to air condition mechanically. As a homeowner you may want to use combinations of passive techniques that will allow you to use mechanical air conditioning occasionally without heavy losses due to heat gain through w ...
Heat Recovery for Commercial Buildings
... traditional air conditioning system. The possible savings in costs and CO2 emissions will be examined. Close control of the working environment is required, air borne ...
... traditional air conditioning system. The possible savings in costs and CO2 emissions will be examined. Close control of the working environment is required, air borne ...
GAIN AN OVERVIEW OF THE EXPERIMENT
... rates of African and European honeybees, Jon Harrison (Arizona State University) and H. Glenn Hall (University of Florida) discovered that relatively small increases in air temperature were correlated with substantial decreases in flight metabolic rate and wingbeat frequency. This result suggests th ...
... rates of African and European honeybees, Jon Harrison (Arizona State University) and H. Glenn Hall (University of Florida) discovered that relatively small increases in air temperature were correlated with substantial decreases in flight metabolic rate and wingbeat frequency. This result suggests th ...
module 6 humidification and air conditioning
... Thus, cooling is accomplished by sensible heat transfer from water to air and evaporation of a small portion of water. A generalized cooling tower system is shown in Figure 6.4. The hot water which is coming from heat exchanger is sprayed at the top of the cooling tower. Air enters through the louve ...
... Thus, cooling is accomplished by sensible heat transfer from water to air and evaporation of a small portion of water. A generalized cooling tower system is shown in Figure 6.4. The hot water which is coming from heat exchanger is sprayed at the top of the cooling tower. Air enters through the louve ...
Healthy environments from a broad perspective – an overview of
... Research at the Unit BPS deals with all building physical aspects that might impose an effect on the healthy environment. This starts with the outdoor environment, e.g. local wind climate and dispersion of pollutants, to optimize the local conditions in which buildings are situated and to optimize b ...
... Research at the Unit BPS deals with all building physical aspects that might impose an effect on the healthy environment. This starts with the outdoor environment, e.g. local wind climate and dispersion of pollutants, to optimize the local conditions in which buildings are situated and to optimize b ...
Workplace Ventilation PDF File
... As mentioned above, the Guidance associated with the Workplace (Health, Safety and Welfare) Regulations 1992 states that the fresh air supply rate to every enclosed workspace should not normally fall below 5 to 8 litres per second, per occupant. The Chartered Institution of Building Services Enginee ...
... As mentioned above, the Guidance associated with the Workplace (Health, Safety and Welfare) Regulations 1992 states that the fresh air supply rate to every enclosed workspace should not normally fall below 5 to 8 litres per second, per occupant. The Chartered Institution of Building Services Enginee ...
Air Pollution
... AC ducts to prevent release of mineral fibers Ban smoking or limit it to well-ventilated areas Set stricter formaldehyde emissions standards for carpet, furniture, and building materials Prevent radon infiltration Use office machines in well-ventilated areas Use less polluting substitutes for harmfu ...
... AC ducts to prevent release of mineral fibers Ban smoking or limit it to well-ventilated areas Set stricter formaldehyde emissions standards for carpet, furniture, and building materials Prevent radon infiltration Use office machines in well-ventilated areas Use less polluting substitutes for harmfu ...
Pollution ppt
... We Can Use the Marketplace to Reduce Outdoor Air Pollution Emission trading or cap-and-trade program • Mixed reactions to program • SO2 emissions down significantly • NO2 will be tried in the future ...
... We Can Use the Marketplace to Reduce Outdoor Air Pollution Emission trading or cap-and-trade program • Mixed reactions to program • SO2 emissions down significantly • NO2 will be tried in the future ...
File
... o Some heat gets trapped by the atmosphere and warms the air. Greenhouse gases in the atmosphere absorb some of the Earth’s re-radiated heat, but are transparent to incoming solar radiation PRODUCED BY HUMANS AND MADE NATURALLY! ______________________________________________ (H2O), Carbon Dioxide ...
... o Some heat gets trapped by the atmosphere and warms the air. Greenhouse gases in the atmosphere absorb some of the Earth’s re-radiated heat, but are transparent to incoming solar radiation PRODUCED BY HUMANS AND MADE NATURALLY! ______________________________________________ (H2O), Carbon Dioxide ...
Air pollution
... We Can Use the Marketplace to Reduce Outdoor Air Pollution Emission trading or cap-and-trade program • Mixed reactions to program • SO2 emissions down significantly • NO2 will be tried in the future ...
... We Can Use the Marketplace to Reduce Outdoor Air Pollution Emission trading or cap-and-trade program • Mixed reactions to program • SO2 emissions down significantly • NO2 will be tried in the future ...
York University Computer Science Building, The
... to move air efficiently and quickly where needed, using a “stack effect” that draws air out through the roof and replaces it with fresh air from the plenum. The motorized skylights and clerestory windows on the third floor are controlled by computerized “meteorological stations” on top of the atria. ...
... to move air efficiently and quickly where needed, using a “stack effect” that draws air out through the roof and replaces it with fresh air from the plenum. The motorized skylights and clerestory windows on the third floor are controlled by computerized “meteorological stations” on top of the atria. ...
Cases – Chapter 8 1. A solar panel is an electronic device that
... have a heat pump that can transfer heat out of a box of corn flakes for as long as you like. The cereal just gets colder and colder. Once again, you know that this is impossible. Explain. d. Just when you thought you were out of the woods, a person comes in with a coffee mug that automatically reass ...
... have a heat pump that can transfer heat out of a box of corn flakes for as long as you like. The cereal just gets colder and colder. Once again, you know that this is impossible. Explain. d. Just when you thought you were out of the woods, a person comes in with a coffee mug that automatically reass ...
111 HUMIDITY INSTRUMENTS
... Dew-point hygrometers, also known as chilled-mirror hygrometers, reflect a beam of light off a tiny metal mirror. When the mirror is cooled to the dew-point temperature, dew forms on the mirror and the light beam scatters instead of reflecting into a detector. Electronics in the instrument cool or ...
... Dew-point hygrometers, also known as chilled-mirror hygrometers, reflect a beam of light off a tiny metal mirror. When the mirror is cooled to the dew-point temperature, dew forms on the mirror and the light beam scatters instead of reflecting into a detector. Electronics in the instrument cool or ...
Air Pollution
... Greater threat to human health than outdoor pollution What can be done? • Prevention • Cleanup ...
... Greater threat to human health than outdoor pollution What can be done? • Prevention • Cleanup ...
Notes
... Processes that lift air ‐ In general, the tendency is for air to resist vertical movement; air locate near the surface tends to stay near the surface, and air aloft tends to stay aloft. • In most cases when you see clouds forming, there is some mechanical phenomenon at work that forces the air t ...
... Processes that lift air ‐ In general, the tendency is for air to resist vertical movement; air locate near the surface tends to stay near the surface, and air aloft tends to stay aloft. • In most cases when you see clouds forming, there is some mechanical phenomenon at work that forces the air t ...
Lecture 10 - Thermodynamics
... The comfort of the human body depends primarily on three factors: the (dry-bulb) temperature, relative humidity, and air motion. The relative humidity affects the amount of heat a body can dissipate through evaporation. Most people prefer a relative humidity of 40 to 60%. Air motion removes the warm ...
... The comfort of the human body depends primarily on three factors: the (dry-bulb) temperature, relative humidity, and air motion. The relative humidity affects the amount of heat a body can dissipate through evaporation. Most people prefer a relative humidity of 40 to 60%. Air motion removes the warm ...
in the Sultanate of Oman
... for an average period of 15 min. The indoor air speed was measured with the help of an AS-202A thermo anemometer probe (GrayWolf Sensing Solutions). The size distribution and number concentration of airborne particles were recorded using a six-channel GW3016 particle counter (Enviro Technology Servi ...
... for an average period of 15 min. The indoor air speed was measured with the help of an AS-202A thermo anemometer probe (GrayWolf Sensing Solutions). The size distribution and number concentration of airborne particles were recorded using a six-channel GW3016 particle counter (Enviro Technology Servi ...
Sample Test 2 Part2
... A rotary dryer is fed with wet feed at a rate of 1 kg dry solid/s. The feed contains 50% water per kg dry solid and the product is discharged with 3% water per kg dry solid. The entering air is at 107 C and an absolute humidity of 0.007 kg/kg. The solid feed enters at 21 C and leaves at 36 C. The ai ...
... A rotary dryer is fed with wet feed at a rate of 1 kg dry solid/s. The feed contains 50% water per kg dry solid and the product is discharged with 3% water per kg dry solid. The entering air is at 107 C and an absolute humidity of 0.007 kg/kg. The solid feed enters at 21 C and leaves at 36 C. The ai ...
Indoor air quality
Indoor air quality (IAQ) is a term which refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants.IAQ can be affected by gases (including carbon monoxide, radon, volatile organic compounds), particulates, microbial contaminants (mold, bacteria), or any mass or energy stressor that can induce adverse health conditions. Source control, filtration and the use of ventilation to dilute contaminants are the primary methods for improving indoor air quality in most buildings. Residential units can further improve indoor air quality by routine cleaning of carpets and area rugs. EPA has guidelines for frequency of cleaning based on traffic, number of household members, pets, children and smokers. Carpets and rugs act like an air filter and must be cleaned.Determination of IAQ involves the collection of air samples, monitoring human exposure to pollutants, collection of samples on building surfaces, and computer modelling of air flow inside buildings.IAQ is part of indoor environmental quality (IEQ), which includes IAQ as well as other physical and psychological aspects of life indoors (e.g., lighting, visual quality, acoustics, and thermal comfort).Indoor air pollution in developing nations is by far the most deadly risk globally. A major source of indoor air pollution in developing countries is the burning of biomass (e.g. wood, charcoal, dung, or crop residue) for heating and cooking. The resulting exposure to high levels of particulate matter resulted in between 1.5 million and 2 million deaths in 2000.