New PDF release: 2010 ASHRAE Handbook - Refrigeration (SI Edition)
By American Society of Heating Refrigerating and Air-Conditioning Engineers
This instruction manual covers the refrigeration gear and structures for functions except human convenience. This ebook contains details on cooling, freezing, and storing nutrition; commercial purposes of refrigeration; and low-temperature refrigeration. basically a reference for the working towards engineer, this quantity can be worthwhile for a person fascinated by cooling and garage of meals items. This version contains new chapters. bankruptcy three, Carbon Dioxide Refrigeration structures, describes the historical past of this "natural refrigerant" and why it's the topic of renewed curiosity this day. The bankruptcy comprises dialogue and diagrams on CO2 refrigerant functions, process layout, gear, protection, lubricants, commissioning, operation, and upkeep. bankruptcy 50, Terminology of Refrigeration, lists the various universal phrases utilized in commercial refrigeration structures, fairly structures utilizing ammonia because the refrigerant.
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Extra resources for 2010 ASHRAE Handbook - Refrigeration (SI Edition)
Mm C2 = outlet pipe diameter, OD, mm D = vertical separation distance. 5 x depth of Curved portion of shell or 50 mm. whichever is greater = internal diameter of shell; 41270 Q/V, mm Q = maximum gas flow in shell at maximum sustained operating conditions, Us SH = slot height = C1/4,mm SL = slot length = 3C1,mm V = separation velocity, mls Fig. 9 Basic Vertical Gravity Gas and Liquid Separator down toward the liquid level. The suggested opening is four times the transverse internal area of the pipe.
For a given refrigerant and flow rate, the suction line pressure drop, suction gas temperature, pressure ratio and displacement, and volumetric efficiency determine the required size and speed of rotation for a positive displacement compressor. At low flow rates, particularly at very low temperatures and in long suction lines, heat gain through insulation can significantly raise the suction temperature. Also, at low flow rates, a large, warm compressor casing and suction plenum can further heat the refrigerant before it is compressed.
1963. Discharge temperature considerations with multicylinder ammonia compressors. Modem Rebigeration (February). B. 1970. Advantages, disadvantages and economics of liquid overfeed systems. ASHRAE Symposium Bulletin KC-70-3: Liquid overfeed systems. P. 1971. Oil recovery from low temperature pump recirculating hydrocarbon systems. ASHRAE Symposium Bulletin PH-7 1-2: Effectof oil on the refrigerationsystem. Sonders, M. G. Brown. 1934. Design of fractionating columns, entrainment and capacity. Industrial & Engineering Chemistry(January).
2010 ASHRAE Handbook - Refrigeration (SI Edition) by American Society of Heating Refrigerating and Air-Conditioning Engineers