On a water cooling tower, “approach” is most commonly the difference between which two values?
Choices
- (A) Cold-water leaving temperature to basin and the thermodynamic wet-bulb of the entering air (per CTI/ASHRAE usage)
- (B) Supply ESP and RAT
- (C) Superheat and subcooling
- (D) Suction and head pressure in pumps
Correct answer: (A)
Cold-water leaving temperature to basin and the thermodynamic wet-bulb of the entering air (per CTI/ASHRAE usage)
Explanation
CTI/ASHRAE: approach = T_cw, out - T_wb,in (approx) for a given L/G.