ARRANGEMENT FOR TRANSFERRING HEAT FROM THE EXHAUST AIR LEAVING AN ENCLOSED VOLUME TO THE INPUT AIR SUPPLIED TO SAID VOLUME

摘要

AbstractThere is provided a heat exchanger system for transfer of heat inthe warm exhaust air from a mine to the cold input air flow to the mine. Inthe system there is provided a heat supply means, which supplies heat, recov-ered from the exhaust air, to the input air heat exchanger when an exhaustair heat exchanger is disconnected for defrosting.