This is fundamental study to apply the waste edible-oil utilization technology using cooking oil. Especially, this study was carried out to apply a hot air heater using the waste edible-oil. This waste edible-oil hot air heater was a fuel supply equipment, a combustion and a indirect heat exchanger. waste edible-oil hot air heater was remodeled and manufactured by modification of a heavy oil hot air heater of a heating capacity 40,000kcal/h, changing fuel supplying system fitted with the waste edible-oil. An experimental apparatus supplies waste edible-oil, which is heated with intake oil, into an intake fuel injection nozzle of the combustion equipment. As the result, heavy oil, light oil and waste edible-oil Caloric value were 10,000kcal/kg, 10,890 kcal/kg and 9,370 kcal/kg. The waste edible-oil hot air heater performance showed that air temperature at inlet , outlet and exhaust gas were 23℃, 59∼63℃, 280℃ respectively. heat rating and thermal efficiency showed that in hot air heater was 683,333kJ/h, 78% respectively. It was found that CO, CO2 were 13ppm, 13.1%. waste edible-oil consumption rate was 22.1ℓ/h.

Abstract
 1. 서론
 2. 재료 및 방법
 3. 결과 및 고찰
  3.1 폐식용유의 물성분석
  3.2 사용연료에 따른 난방특성 분석
  3.3 사용연료에 따른 연소특성
  3.4 사용연료에 따른 배기특성
 4. 결론
 5. 참고문헌

• 백이(농촌진흥청 시설원예시험장) | Y. PAEK
• 전종길(농촌진흥청 시설원예시험장) | J. G. JEON
• 윤남규(농촌진흥청 시설원예시험장) | N. K. YUN
• 조기현(경북도립 경도대학 자동차ㆍ소방계열) | K. H. CHO