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Title: Passive solar energy water preheat system using non-freezing heat transport mediums

Patent ·
OSTI ID:5248302

A sealed thermosiphoning solar energy system is disclosed which uses oil as a nonfreezing transport fluid. The oil is heated in an absorber exposed to the sun's radiation, passes through a check valve and into thermal exchange with a second fluid. Expansion means are provided to prevent excessive pressure buildup in the system.

Assignee:
Chevron Research Co.
Patent Number(s):
US 4413615
OSTI ID:
5248302
Resource Relation:
Patent File Date: Filed date 26 May 1981; Other Information: PAT-APPL-267193
Country of Publication:
United States
Language:
English