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American Society of Heating Refrigerating and's 2009 ASHRAE Handbook - Fundamentals (I-P Edition) PDF

By American Society of Heating Refrigerating and Air-Conditioning Engineers

ISBN-10: 1615830014

ISBN-13: 9781615830015

ISBN-10: 1933742542

ISBN-13: 9781933742540

The 2009 ASHRAE guide - basics covers simple ideas and information utilized in the HVAC&R undefined. up-to-date with study backed through ASHRAE and others, this quantity comprises 39 chapters overlaying common engineering details, easy fabrics, weather information, load and effort calculations, duct and pipe layout, and sustainability, plus reference tables for abbreviations and emblems, in addition to actual houses of fabrics. From the CD-ROM, the climatic layout stipulations tables were extra to this reference, that includes climatic conditions for almost each significant urban on the earth.

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Modern developments in fluid mechanics. Oxford University Press, London. Reprinted by Dover Publications, New York. R. E. Bullock. 1967. Centrifugal fan sound power level prediction. 1. Heskested, G. 1970. Further experiments with suction at a sudden enlargement. Journal of Basic Engineering, ASME Transactions 92D:437. F. 1965. Fluid dynamic drag, 3rd ed. Hoerner Fluid Dynamics, Vancouver, WA. Hydraulic Institute. 1990. Engineering data book, 2nd ed. Parsippany, NJ. P. P. DeWitt. 2002. Fundamentals of heat and mass transfer, 5th ed.

Screens or perforated plates can be used for smoothing velocity profiles (Wile 1947) and flow spreading. Their effectiveness and loss coefficients depend on their amount of open area (Baines and Peterson 1951). Example 2. Water at 68°F flows through the piping system shown in Figure 14. 5, and the valve is a fully open globe valve with K = 10. 01 in. 08 u 10–5 ft2/s. a. 1 ft3/s? Solution: Apply Equation (13) between stations 1 and 2 in the figure. Note that p1 = p2, V1 | 0. Assume D | 1. 1, and V 2/2g = V 22/2g = 8Q2/S2gD4.

With flow-metering devices such as orifices, venturis, and flow nozzles, there is little cavitation, because it occurs mostly downstream of the flow regions involved in establishing the metering action. The detrimental effects of cavitation can be avoided by operating the liquid-flow device at high enough pressures. When this is not possible, the flow must be changed or the device must be built to withstand cavitation effects. Some materials or surface coatings are more resistant to cavitation erosion than others, but none is immune.

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2009 ASHRAE Handbook - Fundamentals (I-P Edition) by American Society of Heating Refrigerating and Air-Conditioning Engineers


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