By Detlev Kroger
This new textual content represents the main certain and finished publication providing sleek perform and idea correct to the thermal-flow functionality review, layout, and optimization of air-cooled warmth exchangers and cooling towers. Kroger presents sleek analytical and empirical instruments used to judge the thermal-flow functionality and layout of air-cooled warmth exchangers and cooling towers. He additionally covers how one can arrange more desirable necessities and overview extra severe bids with recognize to thermal functionality of recent cooling structures. extra, Kroger explores development chances with appreciate to retrofits of current cooling devices in addition to attainable affects of plant operations and environmental impacts
Read or Download Air-cooled Heat Exchangers And Cooling Towers: Thermal-flower Performance Evaluation And Design, Vol. 2 PDF
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Extra info for Air-cooled Heat Exchangers And Cooling Towers: Thermal-flower Performance Evaluation And Design, Vol. 2
Although this approximate relation is used frequently in cooling tower designs, it is inadequate in many cases. A more detailed approach is followed in the following analysis. 6) when H6 = H5 is the tower height. The difference in pressure between (1) at ground level and (5) at the outlet of the tower may be expressed in terms of the losses experienced by the air stream as it flows through various resistances in the tower (Fig. 2). Fig. 2 Losses through Cooling Tower The stagnant ambient air at (1) accelerates to flow through the tower supports at (2), where it experiences certain losses (Kts) before flowing through the heat exchanger bundles from (3) to (4).
01. 1 shows the effect of increasing tip clearance on the fan static pressure for the V-fan. Venter and Kröger find both the fan pressure and the air volume flow rate through the fan decrease linearly with increasing tip clearance (Fig. 2). This is true in the region of maximum efficiency if the system loss coefficient is essentially constant throughout the practical operating range. qxd 6/14/04 1:49 PM Page 20 AIR-COOLED HEAT EXCHANGERS AND COOLING TOWERS Fig. 1 Effect of Tip Clearance on Fan Pressure Fig.
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