Abstract
Current trends in car heating and cooling are reviewed. The need is stressed for close co-operation between the vehicle and heater manufacturers, in order to arrive at the most economical heating system to satisfy technical requirements within limited space.
A standard of vehicle heating is suggested, and the heat quantities to achieve this indicated.
While experience to date in heating has been almost entirely confined to liquid-cooled engine systems, the possibility of alternative heat sources are considered.
To ensure consistently satisfactory distribution of heat and ventilation, the need for improved body-sealing, together with a built-in, suitably positioned air outlet, is discussed.
While present heating systems satisfactorily condition the temperature of the air within the vehicle at low ambient and up to around 55°F, at higher temperatures there is a need to introduce into the vehicle, at high level, a large volume of fresh unheated air, this at present being achieved by opening windows. Ducting this air from the existing plenum chamber is suggested as a more elegant solution in which filtration could be included.
Vehicle refrigeration is reviewed and a smaller and cheaper system of ‘spot cooling’ suggested, as an alternative to the American approach of full car cooling, for the volume production 1–1 1/2 litre British car.
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