By American Society of Heating Refrigerating and Air-Conditioning Engineers
This instruction manual covers the refrigeration gear and platforms for purposes except human convenience. This ebook contains details on cooling, freezing, and storing nutrition; commercial purposes of refrigeration; and low-temperature refrigeration. essentially a reference for the practising engineer, this quantity is usually invaluable for somebody excited about cooling and garage of meals items. This variation contains new chapters: Carbon Dioxide Refrigeration platforms and Terminology of Refrigeration. additionally new for this quantity are bankruptcy order and groupings which have been revised for extra logical stream and use.
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Additional info for 2010 ASHRAE Handbook - Refrigeration (I-P Edition)
The theoretical studies are plausible because introducing an additional stage of heat transfer is bound to lower the high-stage compressor suction. , oil pumps, hot gas leakage) on the low-stage compressors, the effect of suction line losses, and the adverse effect of oil in low-temperature ammonia plants all tend to offset the theoretical advantage of two-stage ammonia system, and in the aggregate the difference in energy consumption one way or the other is likely to be small. Other factors, such as reduced ammonia charge, simplified regulatory requirements, or reduced operator staff, are likely to be at least as significant in the decision whether to adopt CO2 cascades for industrial systems.
4 psia. 2 psia, which is the saturation pressure of ammonia at –27°F. 81°F penalty per foot of riser. If a riser were oversized to the point that the vapor did not carry liquid to the wet return, the evaporator would be at –27°F instead of –40°F. This problem can be solved in several ways: • Install the low-temperature recirculated suction (LTRS) line below the evaporator. This method is very effective for downfeed evaporators. Suction from the coil should not be trapped. This arrangement also ensures lubricant return to the recirculator.
Evaporative condenser engineering manual. Baltimore Aircoil Company, Baltimore, MD. E. 1984. Piping evaporative condensers. In Proceedings of IIAR Meeting, Chicago. International Institute of Ammonia Refrigeration, Arlington, VA. A. 1986. Avoiding refrigeration condenser problems. Heating/Piping/Air-Conditioning, Parts I and II, 58(7, 8). Loyko, L. 1989. Hydraulic shock in ammonia systems. IIAR Technical Paper T-125. International Institute of Ammonia Refrigeration, Arlington, VA. H. The comparative life, fire, and explosion hazards of common refrigerants.
2010 ASHRAE Handbook - Refrigeration (I-P Edition) by American Society of Heating Refrigerating and Air-Conditioning Engineers