The 2014 ASHRAE Handbook€”Refrigeration covers the refrigeration apparatus and structures for purposes except human convenience. This quantity contains information and assistance on cooling, freezing, and storing nutrients; commercial and scientific functions of refrigeration; and low-temperature refrigeration; and features a dual-unit CD.
CD method standards: home windows: CD-ROM force; 1.3 GHz or speedier processor; Microsoft home windows Vista, home windows 7, or home windows eight (62-bit and 64-big); 1 GB of RAM (2 GB recommended); Microsoft web Explorer eight or larger; Adobe Acrobat/Reader 10.0 or greater; 350 MB hard-disk area. Macintosh: Mac OS X v. 10.5.8 or v. 10.6.4; 512 MB of RAM (1 GB recommended); 415 MB hard-disk area; 800 x six hundred display solution (1024 x 768 recommended); Safari four for Mac OS X v. 10.5.8, Safari four or 5.0x for Mac OS X v. 10.6.4, Safari 6.0 for Mac OS X v. 10.7.4 or v. 10.8; Firefox; Adobe Acrobat/Reader 10.0 or better. quotation: 2014 ASHRAE Handbook
ASHRAE, based in 1894, is a global association of a few 50,000 individuals. ASHRAE fulfills its undertaking of advancing heating, air flow, air-con, and refrigeration to serve humanity and advertise a sustainable global via learn, criteria writing, publishing, and carrying on with schooling.
The ASHRAE Handbooks are the layout average for regulate of outfitted environments with volumes on structures and kit, HVAC purposes, Refrigeration and basics. each one is up-to-date each 4 years. as well as publishing layout suggestions for engineers, architects, and facility managers, we additionally put up a sequence of texts for lecture room use.
a few of the components we put up in include:
-Energy Modeling and Auditing
-High functionality development Design
-Indoor Air caliber and Environmental Quality
-Data middle power Efficiency
-Noise & Vibration Control
-HVAC for Healthcare amenities
Read or Download 2014 ASHRAE Handbook -- Refrigeration (I-P) (Ashrae Handbook Refrigeration Systems/Applications Inch-Pound System PDF
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Additional info for 2014 ASHRAE Handbook -- Refrigeration (I-P) (Ashrae Handbook Refrigeration Systems/Applications Inch-Pound System
Common devices used are liquid-line sight glass, mechanical or electronic indicators, and an external gage glass with equalizing connections and shutoff valves. A properly installed sight glass shows bubbling when the charge is insufficient. Liquid indicators should be located in the liquid line as close as possible to the receiver outlet, or to the condenser outlet if no receiver is used (Figure 35). The sight glass is best installed in a vertical section of line, far enough downstream from any valve that the resulting disturbance does not appear in the glass.
The fan cycling sequence is as follows: Upon dropping head pressure • Stop fans. • If pressure continues to fall, stop pumps. Upon rising head pressure • Start fans. • If pressure continues to rise, start pumps. 34 2014 ASHRAE Handbook—Refrigeration Fig. 37 Head Pressure Control for Evaporative Condenser (Air Intake Modulation) The third method holds condensing pressure up by backing liquid refrigerant up in the coil to cut down on effective condensing surface. When head pressure drops below the setting of the modulating control valve, it opens, allowing discharge gas to enter the liquid drain line.
The subcooler liquid control valve should be sized to supply only the quantity of refrigerant required for the subcooling. This prevents a tremendous quantity of liquid from flowing to the upper-stage suction in the event of a valve failure. Discharge Line Oil Separators Oil is always in circulation in systems using halocarbon refrigerants. Refrigerant piping is designed to ensure that this oil passes Fig. 27 Soldered Tube Heat Exchanger Fig. 28 Shell-and-Finned-Coil Heat Exchanger Fig. 30 Tube-in-Tube Heat Exchanger Fig.