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U.S. Department of Energy
Office of Scientific and Technical Information

Self-pumping solar heating system with geyser pumping action

Patent ·
OSTI ID:5963701

A self-pumping solar heating system having a collector including a multitude of small diameter riser tubes from which heated liquid is pumped into a header by a geyser action. A vapor condenser assures a header pressure conducive to bubble nucleation in the riser tube upper end segments. The level of liquid within the header or its outlet is higher than the liquid level in the riser tubes to produce a gravity imbalance capable of circulating heated liquid past a storage heat exchanger, below the header, and then upwardly through the closed vapor condenser in the header prior to return to a collector inlet manifold. A modified header utilizes an open vapor condenser in vapor communication with the collector header.

Assignee:
NOR-85-07058; EDB-85-061297
Patent Number(s):
US 4478211
OSTI ID:
5963701
Country of Publication:
United States
Language:
English