Influence of the operating time on the coefficient of performance in on/off-regulated heat pump systems
Artikel i övrig tidskrift, 1981

The coefficient of performance has been determined experi~ mentally for a water-to-water heat pump at laboratory conditions. Tests' have been carried out with the heat pump operating both continuously and on/off-regulated. In the latter case the conditions concerning dynamic temperature variations were as close to the ones in a real application as possible. The tests showed a decrease of the C.O.P. when the absolute operating time was increased and when the relative operating time was decreased.


Thore Berntsson

Institutionen för värmeteknik och maskinlära

Elektrowärme im Technischen Ausbau,

Vol. 1981 1 A31-A34



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