Clothing insulation is a key parameter to assess thermal comfort and one of the most difficult parameters estimate in field studies. The recent ASHRAE Global Thermal Comfort Database II contains large sample clothing addition wide range other contextual parameters. However, database does not provide details on whether included additional that provided by chairs for seated occupants. This may af...

Aaron Reid In his short story “The Rich Brother” Tobias Wolff delineates a tale of two brothers who have many external differences resulting from their differences in faith. The two brothers are Pete and Donald, and they live in present day California, where their lives are much different from each other. Pete owns a Century 21 franchise and has a wife and two children, and many highly regarded...

Steven T. Taylor, P.E., is a principal of Taylor Engineering in Alameda, Calif. He is a former member of ASHRAE Standing Standards Project Committee (SSPC) 90.1 and former chairman of SSPC 62.1. everal articles over the last several years have extolled the virtues of primary-only variable flow chilled water pumping systems compared to the conventional primary-secondary pumping system. One artic...

ASHRAE 55-2004 and ISO 7730 standards failed to predict actual comfort level and lead to oversize design of HVAC system. So proper thermal environment monitoring is an important subject to have right size of HVAC systems. A prototype thermal EM system has been developed. Thermal environment parameters such as: temperature, relative humidity, CO and CO2 are measured by using the developed system...