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2024 Vol.33, Issue 4 Preview Page

Original Articles

Calculation and Analysis of Heating-Cooling Load and Crop Energy According to Covering in Facility Agriculture

시설 농업에서의 피복에 따른 냉난방부하와 작물 에너지 교환 산정 및 분석

Taeseok Lee1†
,
Seunghun Lee2†
,
Rackwoo Kim3*
,
Jinkyung Kwon4
,
Sungwook Yun1
,
Seongheon Kim1
,
Han Kim5
,
Yunjeong Lee5
이 태석1†
,
이 승헌2†
,
김 락우3*
,
권 진경4
,
윤 성욱1
,
김 성헌1
,
김 한5
,
이 윤정5
1Researcher, Division of Agricultural Engineering, NIAS, RDA, Jeonju 54875, Korea
2Doctoral Student, Department of Agriculture Engineering, Kongju National University, Yesan 32439, Korea
3Assitant Professor, Department of SmartFarm Engineering, Kongju National University, Yesan 32439, Korea
4Senior Researcher, Division of Agricultural Engineering, NIAS, RDA, Jeonju 54875, Korea
5Undergraduate Student, Department of SmartFarm Engineering, Kongju National University, Yesan 32439, Korea
1농촌진흥청 국립농업과학원 농업공학부 연구사
2국립공주대학교 농공학과 박사과정
3국립공주대학교 스마트팜공학과 조교수
4농촌진흥청 국립농업과학원 농업공학부 연구관
5국립공주대학교 스마트팜공학과 학사과정
*Corresponding Author
†These authors contributed equally to this work.
31 October 2024. pp. 498-506
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Abstract

The increase in energy consumption and greenhouse gas emissions due to industrialization and population growth is causing abnormal climate phenomena worldwide, which are also affecting agriculture. To create optimal growing environments for crops, the use of oil and electricity in agricultural facilities has been continuously increasing. Facility-based agriculture ensures high productivity and stable year-round production through artificially controlled growing environments. However, for efficient greenhouse operation from both economic and environmental perspectives, it is necessary to reduce heating and cooling energy consumption. Covering materials play a crucial role in agricultural facilities, as they directly affect the thermal environment inside the facility and help promote crop growth. In this study, dynamic analysis methods from building energy simulation were used to analyze the heating and cooling load based on different types of covering materials. The total annual heating and cooling load, as well as the peak heating and cooling load throughout the year, were calculated depending on the type of covering and whether crops were considered. The results were then interpreted. Through such experiments and simulations, the heating and cooling load within the greenhouse can be assessed, and by comparing the advantages and disadvantages of each covering material, a suitable covering material for greenhouse design can be selected.

Keywords
building energy simulation
dynamic analysis method

본 연구는 건물에너지 시뮬레이션을 이용하여 대상 온실에서 피복재 종류에 따른 작물(토마토)의 에너지 교환량과 냉난방 부하량을 산정하였다. 연중 작물 에너지 최대 교환량과 연간 교환량은 모두 저철분 강화유리(4mm)가 가장 높게 산정되었다. 난방 에너지 부하는 연중 부하가 PE필름(0.1mm)에서 높게 산정되었고, 최대 부하는 PO필름(1.5mm)이 가장 높게 산정되었다. 냉방 에너지 부하는 연중 부하가 저철분 강화유리(4mm)에서 가장 높게 산정되었고, 최대 부하는 PO필름(1.5mm)에서 가장 높게 산정되었다. 본 연구를 통해 피복재별 광적 특성에 따른 온실 내부의 작물 에너지 교환량과 냉난방 에너지부하를 제시하였으며, 피복 선정에 대한 근거를 제시할 수 있을 것으로 사료된다. 투광성과 보온성 등 피복재 특성에 따라 태양 복사에 의한 온실 내 온도 상승 효과가 달라질 수 있으며, 이는 온실 난방 부하에 영향을 미치는 중요한 요인으로 작용할 수 있다. 또한 피복재의 전도율이 높을 경우 내부로 들어오는 외부 열의 양이 증가하여 온실 내 냉방 부하에 큰 영향을 미칠 수 있다(Lee 등, 2012). 본 연구의 결과는 온실 설계 시 피복재 종류에 따른 냉난방 부하를 비교하고 적합한 피복재를 선정하는 기초자료로 활용할 수 있을 것으로 보인다. 이후 피복재의 내구성, 가격 등을 함께 고려하고 물성치 실측을 통한 냉난방 부하 산정 연구를 진행하면 보다 실용적인 결과를 얻을 수 있을 것으로 판단된다.

키워드
건물 에너지 시뮬레이션
동적 해석
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Journal of Bio-Environment Control
  • Journal Title(Ko) :생물환경조절학회지
  • Volume : 33
  • No :4
  • Pages :498-506
  • Received Date : 2024-10-07
  • Revised Date : 2024-10-25
  • Accepted Date : 2024-10-31
  • DOI :https://doi.org/10.12791/KSBEC.2024.33.4.498
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