Accurate upper bound for heating gain factorV. Badescu
Candida Oancea Institute, Polytechnic University of Bucharest Spl. Independentei 313, Bucharest 060042, Romania
received 28 July 2006; accepted in final form 22 September 2006
published online 18 October 2006
The problem of how much heat at a given temperature can be converted into heat at another temperature is studied. An accurate upper bound for the heating gain factor is obtained. The results show that reducing three-four times the present-day fuel consumption for heating is possible.
05.70.Ln - Nonequilibrium and irreversible thermodynamics.
84.60.Bk - Performance characteristics of energy conversion systems; figure of merit.
89.30.-g - Energy resources.
© EDP Sciences 2006