Browse Prior Art Database

Inflatable Solar Heat Collecting Panel

IP.com Disclosure Number: IPCOM000082185D
Original Publication Date: 1974-Oct-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Pratt, RL: AUTHOR

Abstract

Shown is a solar heat collecting panel. The panel as shown in Fig. 1 is, fabricated from clear and black plastic flexible film (polyvinyl fluoride) in a parallel tubular configuration. Walls of tubes 1 have openings 2 at alternate ends. The tube configuration is supported, insulated and secured to insulation board 6 (bottom and sides). A single clear sheet of plastic 3 is stretched across the top and is not pressurized.

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Inflatable Solar Heat Collecting Panel

Shown is a solar heat collecting panel. The panel as shown in Fig. 1 is, fabricated from clear and black plastic flexible film (polyvinyl fluoride) in a parallel tubular configuration. Walls of tubes 1 have openings 2 at alternate ends. The tube configuration is supported, insulated and secured to insulation board 6 (bottom and sides). A single clear sheet of plastic 3 is stretched across the top and is not pressurized.

The tubular structure 1 is inflated by the gas heat transfer medium 4. Liquid heat transfer medium 5 flows from tube-to-tube through the openings 2.

The panel is installed on a roof in a perpendicular position with sun azimuth and at a 45 degrees + or - 10 degrees angle with the horizontal line. Solar radiation passes through the clear plastic top 3 and heats the black plastic bottom sections 7 of the tubes 1. The top sheet 3 insulates the panel from the atmospheric temperature which enhances cleaning ease.

Convex tubular tops 8 tend to concentrate radiation on the liquid heat absorbing medium 5, as shown in Fig. 2. Gas 4 and liquid 5 counterflow through adjacent tubes 1, the liquid by gravity and the gas by pressure differential. Gas counterflows through tubes 1 in relation to the liquid to prevent condensation.

The inflatable solar heat collecting panel can be used as the heat source in conventional hot water heating systems.

System control shown in Fig. 3 is based upon pressure/temperature relationship, an...