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Studies on semi‐cylindrical solar tunnel dryers: year round collector performance
Author(s) -
Garg H. P.,
Kumar Rakesh
Publication year - 1998
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/(sici)1099-114x(199812)22:15<1381::aid-er460>3.0.co;2-d
Subject(s) - inlet , environmental science , volume (thermodynamics) , circulation (fluid dynamics) , natural circulation , mechanics , meteorology , thermal , radius , volumetric flow rate , airflow , flow (mathematics) , atmospheric sciences , materials science , engineering , thermodynamics , physics , mechanical engineering , computer security , computer science
In this paper, the results of year round thermal performance of collector of semi‐cylindrical solar tunnel dryers (STD) has been presented. The calculations have been made under natural circulation and forced circulation mode. The day‐long average of solar irradiance, ambient temperature, rise in the inlet air temperature, natural circulation volume flow rates, and collector efficiency have been calculated for each month of the year. The effect of collector length, cover radius, collector inclination with horizontal have been made for rise in inlet air temperature, volume flow rate and for the efficiency. All calculations have been made for Delhi climate. © 1998 John Wiley & Sons, Ltd.