Cooling towers performance curves

Figure 9-126A. eS F wet bulb 30°F range, counterflow cooling tower performance curves. Used by permission of Counterflow Cooling Tower Performance, The Pritchard Corp. (now, Black and Veatch Pritchard Corp.) (1957). 

Figure 7.5 Typical cooling tower performance curves for different water loadings.

Figure 9.19. Typical cooling tower performance curves (Cheremisinojf snd Cheremisinojf, issi).

Cooling Tower Performance Curves, Blue Book, Cooling Technology Institute, Houston,Tex., 1970. 

This provides curves for cooling tower performance and typical off design performance of centrifugal compressor chilled water systems. These graphs show typical coincident wet and dry bulb temperatures, in... 

Figure 12-16 illustrates the type of performance curve furnished by the cooling-tower manufacturer. This shows the variation in performance with changes in wet-bulb and hot-water temperatures while the water quantity is maintained constant. 

Cooling Tower Institute Performance Curves (Houston, 1967). 

Cooling Tower Institute, Performance Curves, CTI, Spring, TX, 1967. 

The manufacturer s proposal shall include performance curves of the tower, based on design fan horsepower, showing cold water temperature versus air wet-bulb temperature for 90%, 100% and 110% of design water flow. The curves shall cover cooling ranges of 15°F, 20°F, 25°F, 30°F and design range. 

An important thermodynamic parameter in cooling tower calculations is the ratio of the thermal capacity of the water stream to that of the sir stream. This parameter is referred to as, the tower capacity factor. It is shown that when air or water efficiency, are plotted against the capacity factor test points for a given tower are found to lie on a single smooth curve. The correlation is obtained, irrespective of whether the equipment is used as a water cooler or air cooler, and irrespective of the temperature levels, temperature ranges and barometric pressures. The paper also shows that when a specified amount of heat has to be rejected into a specified air stream, optimum performance giving the lowest average water temperature is obtained when the water flow rate is chosen so that its thermal capacity is equal to the potential thermal capacity of the air stream. 13 refs, cited. 

Performance Curves for Mechanical Draft Cooling Towers Hallett, G. F. 

Performance Curves, Cooling Tower Institute, Houston, Tex., 1967. 

Conveyors, mechanical, 76-88 Cooling towers, 280-285 approach to equilibrium, 234 bid data required, 284 kinds of fill, 282 performance curves, 284 sizing example, 281,282 sketches, 283... 

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