家庭用太陽エネルギー装置の原理と設計

概要

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Principle of a porous solar-pond is described by means of elementary physical picture and is applied to design a solar energy device of practical use in individual houses. The device is composed of upper nonconvective water layer of 19 cm thick and of lower semi-transparent sponge layer above the adiabatic hot-water tank. The upper layer is filled with transparent cells of 10 cm cube of which inside is divided into 25 vertical parallel spaces of 2 mm thick separated each other by 24 vertical transparent coase frames of 2 mm thick with area of 10 cm square covered on both sides with transparent membrane, forming altogrther nonconvective water layer maintaining temperature gradient subject to heat conduction. The semi-transparent sponge layer of 5 cm thick is to absorb solar radiation and also to maintain temperature gradient in the lower part. Convection is prohibited in both layers. Solar radiation enters through the upper transparent layer and is absorbed in the sponge layer. The device is very simple but efficient and economical for supplying hot water and for warming houses in winter. It will be one of the most useful tools to encourage people to live without fossil fuels and to overcome the future energy crisis.
近畿大学の論文
1997-03-05