Abstract :
LED by electricals, engineers generally have acquired the habit of considering the heat pump exclusively in terms of electric motor drive. It can be shown that a heat pump driven by a gas, gasoline, or Diesel engine has superior possibilities in many respects, including both first cost and operating costs. During the present active consideration of such innovations as radiant heating, resistance heating, solar heating, heat storage, use of ground coils with heat pump, it seems wise for electrical engineers not to overlook the merits of engine drive for heat pumps in seeking the best technical and economic combination of elements to comprise a complete winter-heating summer-air-conditioning plant.
