초록

○ 단열성이 우수한 보온커튼자재의 탐색 및 선발
○ 보온성 향상을 위한 자재의 조합 방법에 따른 보온효과 검토
○ 선발 보온커튼자재의 단동 하우스용 자동개폐 시스템 개발
○ 난방에너지 절감효과 분석 및 작물재배 효과 농가 실증

Abstract ▼

The greenhouse area of cultivating vegetables and flowers with heating in winter time is 12,962 ha, which takes up to 24.4% of total greenhouse area 53,036 ha in Korea. And over 90% of greenhouse farmers are using oil like gasoline and diesel. Recently, rapid increase of global oil price imposed hea

The greenhouse area of cultivating vegetables and flowers with heating in winter time is 12,962 ha, which takes up to 24.4% of total greenhouse area 53,036 ha in Korea. And over 90% of greenhouse farmers are using oil like gasoline and diesel. Recently, rapid increase of global oil price imposed heavy burden on farm household. This study was conducted focused on energy saving with improvement of heat insulation efficiency by selection of various heat insulation materials and comparison of their adiabatic efficiency. It was strongly needed that conservative thin single keeping warm materials were exchanged to thick quilted materials to improve heat insulation efficiency. Quilted materials were composed of several layers with single heat insulation materials like non-woven fabric, cashimilon cotton, polyfoam and so on. Heat insulation efficiency of 23 kinds of quilted materials were compared in environment controlled chamber room with thermal insulation box. In the strength test, the quilted material which included with raising manufactured material was stronger than other materials by 53.4%. But heat insulation efficiency of that was lower than other materials by 39.5%. Heat insulation efficiency of quilted with polypropylene+non-woven fabric (40g)+cashimilon cotton (8ounce)+coated polyfoam+non-woven fabric(80g) was higher than other materials by 44.6%. Heat transfer efficient of that material was 2.21, and that of non-woven fabric(80g)+raising manufacture material+coated polyfoam+black non-woven fabric(80g) was 6.37, which was higher by 66.4%. As a result, the quilted material included with coated polyfoam or double layered polyfoam was more effective for improvement of greenhouse heat insulation.
Thermal insulation effectiveness of the aluminum insulator depending on the direction of its glossing face, number of layer and allocation position was investigated. Modules were assembled by the combination of the variables levels and experimented for the case of 100 W and 40 W heating in the modules. The temperatures in the modules with the aluminum insulator were higher than those of the modules with polyester curtains. For the modules with one layer aluminum insulator, the inside temperatures of the modules with the direction of the glossing face outward were higher than those of the modules of inward. For two layer of aluminum insulator, the directions of those glossing faces were recommended to be the same direction for higher thermal insulation effectiveness. For the modules without heating, the temperature difference between the modules were not significant. The black globe temperatures in the modules were changed with the similar tendencies with the dry bulb temperatures in the modules. Those of the black globes were higher than those of the dry bulb temperatures as a whole. It was more distinguished for the modules of inward direction.

목차 Contents

• 표지...1
• 요약문...3
• SUMMARY...6
• 제1장 서론...8
• 제2장 국내외 기술개발 현황...10
• 제3장 연구개발수행 내용 및 결과...12
• 제1절 시설원예 에너지 절감을 위한 보온자재 선발...12
• 제2절 시설원예용 보온자재의 단열효과 분석...21
• 제3절 시설원예용 보온자재의 농가현장 적용 연구...29
• 제4장 연구개발목표 달성도 및 대외기여도...39
• 제1절 목표대비 대외달성도...39
• 제2절 정량적 성과...39
• 제5장 연구개발결과의 활용계획...40
• 제6장 연구개발과정에서 수집한 해외과학기술정보...40
• 제7장 기타 중요 변동사항...41
• 제8장 국가과학기술지식정보서비스에 등록한 연구장비 현황...41
• 제9장 참고문헌...42