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A study of a greenhouse concept on conventional biogas systems for enhancing biogas yield in winter months
Author(s) -
Bansal N. K.,
Bhand S. C.,
Ram Sant,
Singh K. K.
Publication year - 1985
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.4440090203
Subject(s) - biogas , slurry , yield (engineering) , greenhouse , greenhouse gas , environmental science , anaerobic digestion , solar energy , biogas production , waste management , environmental engineering , engineering , methane , agronomy , chemistry , materials science , ecology , electrical engineering , biology , metallurgy , organic chemistry
Abstract A new concept is introduced of using a greenhouse for enhancing the biogas yield from a conventional biogas system in the winter months. If a conventional biogas system is glazed, the trapped solar energy can be used to raise the temperature of the slurry which normally goes low enough to reduce the gas yield appreciably. Numerical calculations have been performed corresponding to the meteorological data on a typical winter day, i.e. 19 January 1981, at New Delhi (India). A comparative study of the performances of conventional and solar‐assisted biogas plants using the concept of a greenhouse indicates that the ambient temperature of the slurry can be raised from 18°C to about 37°C, the optimal temperature for anaerobic fermentation.