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The paper describes a case study of an information technology office building with a radiant cooling system and a conventional variable air volume (VAV) system installed side by side so that performance could be compared. First, an energy model of the building was developed in EnergyPlus, a...
A new olefin refrigerant, R1233zd(E), has been identified for use in HVAC chillers. R1233zd(E) is being considered for a number of applications including use as, but not limited to, a solvent, a foam blowing agent, a refrigerant in large centrifugal chillers, and a refrigerant in heat...
Enhancement of heat and mass transfer in sorption fluids could improve the overall performance of absorption chillers. Active mechanisms are proposed as a potential effective means to achieve this goal. A testing facility is needed to evaluate the impact on the performance of the...
This standard applies to heat-operated unitary air conditioners and heat pumps consisting of one or more assemblies, including engine-driven systems. Where such equipment is provided in more than one assembly, the separate assemblies are designed to be used together. Equipment within the scope of...
The use of advanced engineering tools in HVAC industry has increased as the cost of computational fluid dynamics (CFD) has become more affordable for engineering firms. A thermal storage tank system utilized a series of vertical tanks to store chilled water and supplement chillers in the...
This standard applies to all types and sizes of air-conditioning units, heat pumps, and chillers using direct-driven 250 mm to 750 mm (10 in. to 30 in.) diameter propeller fans, which, for the purposes of this standard, are called a "system." This standard covers system vibration problems...
This standard covers cool-storage systems composed of chillers, storage medium, storage device or vessel, heat sink equipment or heat sink systems, and other auxiliary equipment required to provide a complete and working system. This standard includes a. a uniform method of testing, b....
This document specifies the requirements for the verification of performance and energy consumption of blast cabinets for professional use in commercial kitchens, hospitals, canteens, institutional catering and similar professional areas. The appliances covered by this document are intended to...
This method of test applies to air-cooled,water-coo
Introduction The Advanced Energy Design Guide for Small Warehouses and Self-Storage Buildings (AEDG-WHSE; the Guide) is intended to provide a simple approach for contractors and designers who create warehouses. Application of the recommendations in the Guide should result in warehouses with 30%...
This standard applies to classes of air-conditioning units that are used to air condition data center (DC) and other information technology equipment (ITE) spaces. Such units must be able to be tested using an air enthalpy method and facilitate heat transfer across at least one heat exchanger....
Introduction The Advanced Energy Design Guide for Small Retail Buildings (AEDG-SR; the Guide) is intended to provide a simple approach for contractors and designers who create retail buildings up to 20,000 ft2. Application of the recommendations in the Guide should result in small retail buildings...
The path towards zero energy buildings is fraught with many challenges, the onsite renewable energy production to drive consumer appliances that are not low or zero energy is an important challenge. Therefore, developing the energy production such that the production mode is matched to the usage...
This Japanese Industrial Standard specifies requirements for the centrifugal water chillers (hereafter referred to as chillers) which perform cooling or heating of water by the refrigerating cycle consisting of a centrifugal compressor, compressor driving motor, evaporator, water...
Rating capacity and operational performance of liquid chillers having a nominal capacity above 7 kW. Describes the methods of test to be applied for determination of ratings and performance of chillers having electrically driven compressors.
