Geothermal hot water system

Patent · Tue May 10 00:00:00 EDT 1983

OSTI ID:5891392

Dittell, E W

Geothermal hot water system including a hot water tank and a warm water tank which are heated independently of each other by a close loop freon system. The closed loop freon system includes a main condenser which heats water for the warm water tank and a super-heated condenser which heats water for the hot water tank, and where the freon passes through a water evaporator which is heated by water such as from a well or other suitable source. The water evaporator in the closed loop freon system passes the water through but no environmental change to the water. An electrical circuit including aquastats in the warm water tank connected therethrough controls operation of the closed loop freon system including respective pumps on the super-heated condenser and main condenser for pumping water. Pumps pump water through the main condenser for the warm tank and through the super-heated condenser for the hot tank. The system provides for energy conservation in that the head pressure of the compressor is kept in the lower operating ranges as determined by the discharge flow of the main condenser which varies by the head pressure and temperature flow control which varies by temperature. The geothermal hot water system uses a least amount of energy in heating the water in the hot tank as well as the warm tank.

• Assignee: EDB-83-139455
• Patent Number(s): US 4382368
• OSTI ID: 5891392
• Resource Relation: Patent File Date: Filed date 20 Mar 1981; Other Information: PAT-APPL-246005
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
FREONS
CLOSED-LOOP CONTROL
GEOTHERMAL WATER HEATING
CLOSED-CYCLE SYSTEMS
CONDENSERS
CONTROL EQUIPMENT
EFFICIENCY
ELECTRONIC CIRCUITS
EVAPORATORS
PUMPS
TANKS
CONTAINERS
CONTROL
EQUIPMENT
GEOTHERMAL HEATING
HALOGENATED ALIPHATIC HYDROCARBONS
HEATING
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
WATER HEATING
151000* - Geothermal Energy- Direct Energy Utilization