Large room or cooking equipment waste heat utilising appts. - uses heat exchanger and chiller to evaporate water for cooling

摘要

Gaseous source of waste energy, including heat, is passed through a gas to liquid heat exchanger and then a chiller to agitate a water bath and produce evaporation of water for cooling. The heated transfer liquid is passed through a heat exchanger to heat makeup air while, alternatively, chilled water from the chiller is pased through the heat exchanger to cool the makeup air. The source of waste energy, including heat, is normally a grease extraction ventilator mounted to receive fumes and heated air from cooking equipment. Alternatively heated air which has risen to the upper portion of a large room or enclosure, such as an auditorium, theatre, meeting hall is used. The heated air removed from such a position is adapted in part to be recirculated, but all of it may be used to furnish heat for heating fresh makeup air.