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이석건 ( Lee Suk Gun ),김란숙 ( Jin Lan Shu ),이현우 ( Lee Hyun Woo ),이종원 ( Lee Jong Won ) 한국농공학회 1999 한국농공학회 학술대회초록집 Vol.1999 No.-
The simulation and experiments were conducted to analyze the variation of the temperature and humidity in the wintering beehouses which had two kinds of the insulator materials of urethane foam and sandwich panel individually. It was found that inside temperature of sandwich panel beehouse was similar to the urethane foam at the same outside temperature by the simulation results. The variation of the inside temperature and humidity for the urethane foam was less than the sandwich panel.
이석건 ( Lee Suk Gun ),김란숙 ( Jin Lan Shu ),이현우 ( Lee Hyun Woo ),이종원 ( Lee Jong Won ) 한국농공학회 2000 한국농공학회 학술대회초록집 Vol.2000 No.-
The wintering honey bee chambers were constructed and inside environment factors were analyzed to provide high technology for efficient wintering of honeybee colonies. As a result of this study, inside air temperature of yongin chamber under the wide range of outside temperature condition was found to be appropriated for wintering of bee, and inside temperature of beehive was about 2℃ higher than the air temperature in the chamber. The fan operation schedule did not control the high temperature down properly in the chamber, It was necessary to find a new fan operation schedule to be able to provide the optimum temperature for wintering honey bee colonies. inside humidity variation of Yongin chamber was very much depended on outside humidity.
이석건 ( Lee Suk Gun ),이종원 ( Lee Jong Won ),이현우 ( Lee Huun Woo ),김란숙 ( Jin Lan Shu ) 한국농공학회 1998 한국농공학회 학술대회초록집 Vol.1998 No.-
Thermal environment of greenhouse was investigated by thermo-tracer in this study. The Thermo-tracer is a high-sensitivity infrared thermometer of non-contact type. The infrared energy emitted from the measured object is converted into an electrical signal by the detector(HgCdTe) and display as a color or black & white thermal image by way of optical scanning, The experiment was conducted for Venlo-type greenhouse with pad & fan system. The temperature difference between measured by Thermo-trace and measured by HOBO sensor is maximum 0.8℃. Thermo-trace is possible to use for the thermal environment analysis and diagnosis of a cooling and heating system of greenhouse.