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Articles by Bikash Sarkar
Total Records ( 2 ) for Bikash Sarkar
  Bikash Sarkar , B.C. Mohapatra , S.K. Singh , Dukhia Majhi , N. Sarangi and G.N. Tiwari
  An experiment was conducted to examine the energy use pattern in open and greenhouse fish ponds. The energy consumption was around 584.99 and 1027.22 MJ/50 m2 for open and greenhouse pond, respectively. The energy input-output, specific energy and energy productivity were found to be 0.070, 71.55 MJ kg-1 and 0.014 kg MJ-1 for open pond and 0.079, 63.60 MJ kg-1 and 0.015 kg MJ-1 for greenhouse pond, respectively. The energy ratio was higher in the greenhouse due to lower inputs and the specific energy was recorded low due to the higher yield.
  Lopa Ghosh , G.N. Tiwari , Tribeni Das and Bikash Sarkar
  An analytical model is presented to study the effectiveness of a low cost arch shape greenhouse used for heating the fishpond during extreme winter. The model was solved for the climatic conditions of New Delhi (Latitude-28° 35/ N, Longitude-77° 12/ E and an altitude of 216 m above mean sea level). Parametric studies involved the effects of different greenhouse fishpond related parameters including depth of pond water, transmissivity of greenhouse cover and number of air changes in the greenhouse on water heating in the fishpond. The thermal performance of fishpond was assessed in terms of thermal load leveling. A 4.76-5.83°C rise in water temperature could be achieved as compared to open pond of the day. The maximum heat gain and loss are around 14:00 to 17:00 and 1:00 to 7:00 h of the day, respectively. From production point of view greenhouse fish pond showed better performance compared to open pond.
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