Read e-book online 2014 ASHRAE Handbook -- Refrigeration (I-P) (Ashrae Handbook PDF


ISBN-10: 1680153277

ISBN-13: 9781680153279

ISBN-10: 1936504715

ISBN-13: 9781936504718

The 2014 ASHRAE Handbook€”Refrigeration covers the refrigeration gear and structures for functions except human convenience. This quantity comprises facts and suggestions on cooling, freezing, and storing foodstuff; commercial and clinical functions of refrigeration; and low-temperature refrigeration; and encompasses a dual-unit CD.

CD procedure specifications: 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 house. Macintosh: Mac OS X v. 10.5.8 or v. 10.6.4; 512 MB of RAM (1 GB recommended); 415 MB hard-disk house; 800 x six hundred display answer (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 larger. quotation: 2014 ASHRAE Handbook

ASHRAE, based in 1894, is a global association of a few 50,000 individuals. ASHRAE fulfills its project of advancing heating, air flow, air-con, and refrigeration to serve humanity and advertise a sustainable international via study, criteria writing, publishing, and carrying on with schooling.

The ASHRAE Handbooks are the layout usual for keep an eye on of equipped environments with volumes on structures and gear, HVAC functions, Refrigeration and basics. every one is up to date each 4 years. as well as publishing layout information for engineers, architects, and facility managers, we additionally submit a sequence of texts for school 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 strength Efficiency
-Noise & Vibration Control
-Humidity Control
-HVAC for Healthcare amenities

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Read Online or Download 2014 ASHRAE Handbook -- Refrigeration (I-P) (Ashrae Handbook Refrigeration Systems/Applications Inch-Pound System PDF

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Additional resources for 2014 ASHRAE Handbook -- Refrigeration (I-P) (Ashrae Handbook Refrigeration Systems/Applications Inch-Pound System

Sample text

A crankcase heater is the best solution, with a solenoid valve in the liquid line that closes when the compressor stops. Effect of Short Operating Cycle With reciprocating compressors, oil leaves the crankcase at an accelerated rate immediately after starting. Therefore, each start should be followed by a long enough operating period to allow the oil level to recover. Controllers used for compressors should not produce short-cycling of the compressor. Refer to the compressor manufacturer’s literature for guidelines on maximum or minimum cycles for a specified period.

Small pressure differences are not unusual; therefore, the liquid line junction should be about 2 or 3 ft below the bottom of the condensers. The exact amount can be calculated from pressure loss through each path at all possible operating conditions. When condensers are water-cooled, a single automatic water valve for the condensers in one refrigeration system should be used. Individual valves for each condenser in a single system cannot maintain the same pressure and corresponding pressure drops.

Shutoff valves should isolate the filter and trap. The filter and traps are also easy to service without stopping the system. The discharge line pipe size into and out of the oil separator should be the full size determined for the discharge line. For separators that have internal oil float mechanisms, allow enough room to remove the oil float assembly for servicing. Depending on system design, the oil return line from the separator may feed to one of the following locations: • Directly to the compressor crankcase • Directly into the suction line ahead of the compressor • Into an oil reservoir or device used to collect oil, used for a specifically designed oil management system When a solenoid valve is used in the oil return line, the valve should be wired so that it is open when the compressor is running.

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