Download PDF by ASHRAE: 2014 ASHRAE Handbook -- Refrigeration (I-P) (Ashrae Handbook


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 contains info and counsel on cooling, freezing, and storing foodstuff; commercial and clinical purposes of refrigeration; and low-temperature refrigeration; and contains a dual-unit CD.

CD process standards: home windows: CD-ROM force; 1.3 GHz or swifter 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 net Explorer eight or greater; Adobe Acrobat/Reader 10.0 or better; 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 monitor 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 folks. 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 normal for keep an eye on of equipped environments with volumes on platforms and gear, HVAC purposes, Refrigeration and basics. each one is up-to-date each 4 years. as well as publishing layout tips for engineers, architects, and facility managers, we additionally post a chain of texts for lecture room use.

the various parts we post in include:
-Energy Modeling and Auditing
-High functionality construction Design
-Indoor Air caliber and Environmental Quality
-Data middle strength Efficiency
-Noise & Vibration Control
-Humidity Control
-HVAC for Healthcare amenities

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

Sample text

Using a permanent refrigerant drier is recommended on all systems and with all refrigerants. It is especially important on low-temperature systems to prevent ice from forming at expansion devices. A full-flow drier is always recommended in hermetic compressor systems to keep the system dry and prevent decomposition products from getting into the evaporator in the event of a motor burnout. Replaceable-element filter-driers are preferred for large systems because the drying element can be replaced without breaking any refrigerant connections.

Here, the bypass is connected into the low side between the expansion valve and entrance to the evaporator. If a distributor is used, gas enters between the expansion valve and distributor. Refrigerant distributors are commercially available with side inlet connections that can be used for hot-gas bypass duty to a certain extent. Pressure drop through the distributor tubes must be evaluated to determine how much gas can be bypassed. This arrangement provides good oil return. Solenoid valves should be placed before the constant-pressure bypass valve and before the thermal expansion valve used for liquid injection desuperheating, so that these devices cannot function until they are required.

Hot-gas bypass should (1) give acceptable regulation throughout the range of loads, (2) not cause excessive superheating of the suction gas, (3) not cause any refrigerant overfeed to the compressor, and (4) maintain an oil return to the compressor. Hot-gas bypass for capacity control is an artificial loading device that maintains a minimum evaporating pressure during continuous compressor operation, regardless of evaporator load. This is usually done by an automatic or manual pressure-reducing valve that establishes a constant pressure on the downstream side.

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