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Analysis of Environmental Design Data for Growing Pleurotus ervngii  

Yoon, Yong-Cheol (Division of Agri Systems Eng., College of Agri. & Life Sciences, Gyeongsang National University)
Suh, Won-Myung (Division of Agri Systems Eng., College of Agri. & Life Sciences, Gyeongsang National University)
Lee, In-Bok (Dept. of Landscape & Rural Systems Eng., Seoul National University)
Publication Information
Journal of Bio-Environment Control / v.14, no.2, 2005 , pp. 95-105 More about this Journal
Abstract
This study was carried out to file up using effect and requirement of energy for environmental design data of Pleurotus eryngii growing houses. Heating and cooling Degree-Hour (D-H) were calculated and compared for. some Pleurotus eryngii growing houses of sandwich-panel (permanent) o. arch-roofed(simple) type structures modified and suggested through field survey and analysis. Also thermal resistance (R-value) was calculated for the heat insulating and covering materials of the permanent and simple-type, which were made of polyurethane or polystyrene panel and $7\~8$ layers heat conservation cover wall. The variations of heating and cooling D-H simulated for Jinju area was nearly linearly proportional to the setting inside temperatures. The variations of cooling D-H was much more sensitive than those of heating D-H. Therefore, it was expected that the variations of required energy in accordance with setting temperature or actual temperature maintained inside of the cultivation house could be estimated and also the estimated results of heating and cooling D-H could be effectively used far the verification of environmental simulation as well as for the calculation of required energy amounts. When the cultivation floor areas are all equal, panel type houses to be constructed by various combinations of materials were found to by far more effective than simple type pipe house in the aspect of energy conservation maintenance except some additional cost invested initially. And also the energy effectiveness of multi-span house compared to single span together with the prediction of energy requirement depending on the level insulated for the wall and roof area could be estimated. Additionally, structural as well as environmental optimizations are expected to be possible by calculating periodical and/or seasonal energy requirements for those various combinations of insulation level and different climate conditions, etc.
Keywords
Degree-Hour; Energy conservation; Heating and cooling load; Heat insulating and covering materials; Permanent and simple type; Thermal resistance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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