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시설원예용 히트펌프 시스템의 성능특성에 관한 해석적 연구

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Alternative Title
A Study on the Performance Characteristics of the Heat Pump System for Greenhouse
Abstract
The facility house protects plants from the effects of the natural environment and is used for growing plants. It is because of the greenhouse effects that such facility houses can be operated. The greenhouse effect is short-wavelength solar radiation that can pass through the transparent roof and is absorbed by objects inside the greenhouse this study application of solar energy to the greenhouse is renewable energy research and development in order to save energy and mass balance theory. Renewable energy systems have received considerable attention as a sustainable technology in the building sector. Specifically, the ground source heat pump and air source heat pump for heating and cooling the building is increasing rapidly, and the combination with photovoltaic systems and heat pump systems provides with energy saving system and environmental benefits. The simulated system is installed at a length of 10m, width 5.4m, height 4.6m greenhouse located in Jeju national university of Jeju, South Korea. This experiment was carried out to collect data to validate the model. The results showed that the simulated air temperature inside a plastic greenhouse conformed well to the data. The study simulation program uses Gamma technology which is recognized worldwide as the industry standard for system simulations. The numerical models of condenser and evaporator were built for the effect of tube dimension and to analyzed fin-type on the heat transfer performance, which provides some reference for enhancement heat exchanger. The development of the heat pump energy efficiency standards is studied. The practical results of the simulation error were less than 25%. When operating the heat pump system in the program, the highest value of power consumption in the compressor simulation was 5.2 kW, and the average error was 5.8%. When the greenhouse air source heat pump system heats the outside air heat source, the round tube heat exchanger performed heat exchange as a condenser, and the experimental and analytic values for the heat quantity of the ring tube heat exchanger were compared. The average simulation and experiment COP error of heating the heat exchanger is 10%. The COP is having a lot of errors because of analytic error of flowmeter and compressor power consumption and the analytic error of heat exchanger heating amount is getting overlapped.
Author(s)
어트건푸레브 토올
Issued Date
2021
Awarded Date
2021. 8
Type
Dissertation
URI
https://dcoll.jejunu.ac.kr/common/orgView/000000010346
Alternative Author(s)
Otgonpurev, Tuul
Affiliation
제주대학교 대학원
Department
대학원 에너지응용시스템학부 기계공학과
Advisor
박윤철
Table Of Contents
1. 서론 1
1.1 연구의 배경 1
1.2 연구 목적 3
2. 모델링 6
2.3.1 시설하우스 및 기후변화 19
2.3.2 히트 펌프 모델링 23
2.3.3 압축기 30
2.3.4 시뮬레이션 콘덴서 34
2.3.5 시뮬레이션 증발기 36
3. 결과 및 고찰 37
3.1 시스템 시뮬레이션 36
3.2 축열 모드 운전 특성 43
3.3 외기온도 변화에 따른 시스템의 성능특성 46
3.4 시설하우스 용량 변화에 따른 성능특성 50
4. 결론 56
참고문헌 58
Degree
Master
Publisher
2021.08
Citation
어트건푸레브 토올. (2021). 시설원예용 히트펌프 시스템의 성능특성에 관한 해석적 연구
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Faculty of Applied Energy System > Mechanical Enginering
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