• AWWA ACE58298

AWWA ACE58298

Using Potable Water in Heat Exchangers

American Water Works Association , 06/15/2003

Publisher: AWWA

File Format: PDF

$12.00$24.00


The conventional geothermal system is used for heating and cooling. Ground temperatures are between 50 and 60%. These are closed loop or pump and dump arrangements. This paper discusses using potable water from water mains as a source of heat and cooling. This system uses the heat exchanger, the heat pump, and the air delivery system. Heat exchangers use 3 degrees of temperature to achieve cooling or heating. The location of the heat exchanger can be either on the main or in the building. The system on the main, a wrapped flat copper coil around a stainless steel spool about 132 inches long, can be controlled by the water utility. The heat exchanger in the building returns potable water after a heat exchange into the water mains. The potable water can be protected to prevent contamination from a heat exchanger.

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