Published online by Cambridge University Press: 04 July 2016
In the analysis of cooled gas turbine cycles, the quantity of heat removed by the coolant is termed as “cooling loss”. In the literature, these cooling losses are accounted for by the use of either
(a) Cooling Loss Factor, or
(b) Cooling Number.
Brown defines Cooling Loss Factor (CLF) as a ratio of heat removed by coolant per unit time divided by the total turbine output per unit time.
Traupel defines the Cooling Number (CN) as the ratio of heat loss to isentropic enthalpy drop.
Cohen and Martin use the CLF in their analyses and May uses the CN.
It is the purpose of this note to give a simple correlation of the two and to suggest a new definition to account for these losses.