Abstract: The heating, ventilation, air conditioning, and refrigeration industry shows a trend toward increased adoption of condensing boilers in heating systems, but the full impact on design and construction is complex. In design the selection of the boilers, heating coils, and operating temperatures play equally important roles in the composition of an ef...

Abstract: HEAT transfer is energy in transit because of a temperature difference. The thermal energy is transferred from one region to another by three modes of heat transfer: conduction, radiation, and convection. Heat transfer is ...

Abstract: INTRODUCTION
Recent advances in medical technology necessitate regular reevaluation of the heating, ventilating and air-conditioning (HVAC) needs for hospitals facilities. The purpose of the HVAC system ...

Abstract: This paper provides an overview of the timed egress model for fixed guide way transit and passenger rail stations described in NFPA 130. First, the paper discusses the method for determining evacuations of station populations. It then discusses how the egress capacity for the station is determined. Finally, the method used to determine the time it ...

Abstract: This part of ISO 13256 establishes performance testing and rating criteria for factory-made residential, commercial and industrial, electrically driven, mechanical-compression type, water-to-water and brine-to-water heat pumps. The requirements for testing and rating contained in this part of ISO 13256 are based on the use of matched assemblies.

Abstract: FOREWORD
This addendum clarifies the requirements for certain exhaust discharges. Terminology for the Emergency Department public waiting area is made consistent within the tandard and with the FGI Guidelines (refer to Paragraph 2.2-3.1.3.4 from the FGI-2014). Terminology for nuclear medicine hot lab is made consistent within t...