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2016 Vol.25, Issue 4
Application Effect of Heating Energy Saving Package on Venlo Type Glasshouse of Paprika Cultivation

파프리카 재배 벤로형 유리온실에서 난방에너지 절감 패키지 기술 적용효과

Jin Kyung Kwon1*
,
Jong Gil Jeon2
,
Seung Hee Kim1
,
Hyung Gweon Kim1
권 진경1*
,
전 종길2
,
김 승희1
,
김 형권1
1Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science, RDA, Haman 637-812, Korea
2Agricultural Safety Engineering Division, National Academy of Agricultural Science, RDA, Jeonju 560-500, Korea
1국립원예특작과학원 시설원예연구소
2국립농업과학원 농업공학부 재해예방공학과
*Corresponding author: cen55@korea.kr
30 November 2016. pp. 225-231
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Abstract

Glasshouse heating package technologies to improve energy usage efficiency in winter were developed. Heating package was composed of the ground water source heat pump with heating capacity of 105kW, the aluminum multi-layer thermal curtain with six layers of different materials and the root zone local heater with XL pipes of φ 20mm. Venlo type glasshouse(461m2) with the heating package was compared with the same type and area control glasshouse with the light oil boiler, the usual non-woven fabric thermal curtain with respect to the glasshouse inside temperature, relative humidity, crop growth, and heating energy consumption. The results of test in paprika cultivation glasshouses showed that the air temperature inside glasshouse with aluminum multi-layer thermal curtain was maintained 2.2°C higher than that of control glasshouse in un-heating night time and the temperature in bed with root zone local heating was 4.7°C higher than that in bed without local heating. Average heating coefficient of performance(COP) of the ground water source heat pump used in paprika cultivation was 3.7 and the glasshouse inside temperature was maintained at 21°C of heating set up temperature. The heating energy consumptions per 10a were measured at 14,071L of light oil and 364kWh of electric power for the control glasshouse and 35,082kWh for the glasshouse applied heating package. As results, the heating cost of the glasshouse applied heating package was 87 percent lower than that of control glasshouse. The growths of paprika in glasshouses of control and applied heating package did not show any significant difference.

Keywords
energy saving
heat pump
heating cost
local heating
multi-layer thermal curtain

본 연구에서는 유리온실 경영비 절감을 위한 고효율 난방기술을 개발하기 위하여 지하수열원 히트펌프, 알루 미늄 다겹보온커튼, 근권부 국소난방장치를 조합한 난방 패키지 모델을 구성하고 파프리카 재배 벤로형 유리온실 에 적용 시험을 수행하였다. 적용효과 분석을 위하여 관 행 경유온수보일러와 일반 보온커튼을 설치한 대조구 온 실과 비교시험을 통해 온실환경, 난방비용, 작물생육 등 을 검토하였다. 알루미늄 다겹보온커튼과 일반 부직포 보온커튼을 설치한 온실에 대한 무가온 조건에서의 야간 온도 비교시험에서 알루미늄 다겹보온커튼 설치 온실의 온도가 일반 부직포 보온커튼 설치 온실에 비해 평균 2.2°C 더 높게 유지됨을 확인하였다. 또한 근권부 국소 난방장치를 설치한 온실에서 미설치 온실에 비해 야간 난방 중의 베드내부 근권온도가 4.7°C 더 높게 유지됨을 확인하였다. 난방패키지를 구성하는 지하수열원 히트펌 프의 난방성능을 분석한 결과 지하수를 직접 열원으로 이용하는 시스템 특성상 난방성능계수는 평균 3.7로 비 교적 높게 나타났다. 난방패키지를 적용한 처리구 온실 과 관행 난방의 대조구 온실에 대하여 연료소비량을 계 측한 결과 10a(1,000m2)당 대조구 온실은 경유 14,071L, 전력 364kWh를 소비하였고, 처리구는 전력 35,082kWh 를 소비하여 난방비용 기준으로 대조구 온실의 비용 절 감율은 87%로 나타났다. 처리구 및 대조구 온실의 작물 생육을 비교한 결과 초장과 엽록소 함량에서 차이가 발 생하였으나 두 온실의 난방온도가 거의 동일하므로 전체 적인 생육은 큰 차이가 없는 것으로 분석되었다. 원예시 설의 난방에너지 절감효과를 극대화하기 위해서는 본 연 구의 난방패키지를 구성하는 개별 기술뿐 아니라 이미 개발된 고효율 공조기 이용기술, 보온성 향상기술, 온도 관리 기술 등을 지역, 시설, 작목, 작형 등에 최적화하여 조합할 수 있는 추가적 패키지 모델의 개발 연구가 필 요한 것으로 판단되었다.

키워드
국소난방
난방비용
다겹보온커튼
에너지 절감
히트펌프
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Protected Horticulture and Plant Factory
  • Journal Title(Ko) :시설원예ㆍ식물공장
  • Volume : 25
  • No :4
  • Pages :225-231
  • Received Date : 2016-09-29
  • Revised Date : 2016-10-26
  • Accepted Date : 2016-10-31
  • DOI :https://doi.org/10.12791/KSBEC.2016.25.4.225
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