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남상운 ( Nam Sang-woon ),노상목 ( Noh Sang-mok ) 한국농공학회 2005 한국농공학회 학술대회초록집 Vol.2005 No.-
Experiments on the improvement in durability of pipe framework for plastic greenhouse were carried out. Effect of protection treatment such as primer and paint coating for new pipes and old rusted ones were evaluated by change of rusty degree and yield strength. The experiments have been conducted during five years until now but it was too short to find the clear differences. However, there was a little improvement in durability of greenhouse pipes by painting after removal of rust. And also component and corrosion characteristics of pipes being used in greenhouses were analyzed, and several countermeasures for protection from corrosion were reviewed.
윤남규 ( Yun Nam Kyu ),노상목 ( Noh Sang Mok ),남상운 ( Nam Sang Woon ) 한국농공학회 2004 한국농공학회 학술대회초록집 Vol.2004 No.-
In this study, design air temperature was modified by adding new weather data of recent 10 years. Also, the computing program to easily calculate a heating loads was developed. As applying with new weather data, greenhouse heater capacity could be lessen 4.5 as percentage than using the existing weather data. It is expected that more exact prediction for consumed fuel amount during heating periods by using the recent design weather data.