Steven T. Taylor, P.E., is a principal and Jeff Stein, P.E., is a senior engineer at Taylor Engineering in Alameda, Calif. Taylor is a member of TCs 4.3 and 1.4. He is a former member of ASHRAE Standing Standards Project Commitee (SSPC) 90.1 and former chairman of SSPC 62.1. ow, and indeed whether, to balance variable flow (twoway valve) hydronic systems has been debated for many years.1,2,3 In...

Automatic, accurate and online fault detection of heating ventilation air conditioning (HVAC) subsystems, such as chillers, is highly demanded in building management system (BMS) to prevent energy waste and high maintenance cost. However, most fault detection techniques require rich faulty training data which is usually unavailable. In this study, a novel hybrid method is proposed to detect fau...

In this report, we discuss the accuracy of flow hoods for residential applications, based on laboratory tests and field studies. The results indicate that commercially available hoods are often inadequate to measure flows in residential systems, and that there can be a wide range of performance between different flow hoods. The errors are due to poor calibrations, sensitivity of existing hoods ...

Bu çalışma toplumsal cinsiyet çalışmalarında merkezi bir konu olan kadına yönelik şiddet tartışmalarını “52 Erkek 52 Hafta” yazı dizisi örneğinden hareketle tartışmayı amaçlamaktadır. Kadına meselesi ilkin kadın hareketi içinde önemli tartışma konusuyken daha sonra hem kurumsal mekanizmalara de akademik alana taşınmıştır. Son dönemlerde ise yeni medya araçları ile geniş alanına kavuşmuştur. seb...

The design of hydronic heating systems for bridge snow melting requires assessment of longterm performance under expected future weather conditions, especially when geothermal energy is used as the heat source. This is important to be able to predict the snow melting performance, analyze the economics, and investigate the effects of controls and design parameters on the system performance. A si...