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Thermal performance of a south facing wall as solar collector storage system
Author(s) -
Srivastava Alok,
Kumar Ashivini,
Tiwari G. N.
Publication year - 1980
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440040402
Subject(s) - maxima and minima , thermal energy storage , plane (geometry) , thermal , materials science , mass flow rate , maxima , heat flow , brick , mechanics , meteorology , thermodynamics , composite material , physics , geometry , mathematics , art , mathematical analysis , performance art , art history
This paper illustrates an analysis of the performance of a solar wall as a collector storage system. the south facing wall consists of a mass of concrete/brick whose one surface is blackened and glazed, and a network of pipes (metallic or plastic) is laid in a plane from which heat can be extracted by flow of fluid in such a manner that the temperature of the plane of heat retrieval keeps constant. the collection efficiency of the system is found to be 80·0 and 60·7 per cent for collection temperatures 20 and 25°C respectively on the surface; the maxima/minima of the rate of heat retrieval (Q(t)) occurs about 12 h after the maxima/minima of solar temperature at a depth of the plane of heat retrieval = π/α1, with a maximum efficiency of 21·47.