Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Greenhouse Heating Technology Development by using Riverbank Filtration Water

강변여과수를 이용한 온실난방기술 개발

  • 문종필 (농촌진흥청 국립농업과학원) ;
  • 이성현 (농촌진흥청 국립농업과학원) ;
  • 권진경 (농촌진흥청 국립농업과학원) ;
  • 강연구 (농촌진흥청 국립농업과학원) ;
  • 유영선 (농촌진흥청 국립농업과학원) ;
  • 이수장 (농촌진흥청 국립농업과학원)
  • Received : 2011.10.20
  • Accepted : 2011.11.15
  • Published : 2011.11.30
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Abstract

In order to heat greenhouse nearby river channel, riverbank filtration water source heat pump was developed for getting plenty of heat flux from geothermal energy. Recharging well, thermal storage tank with separating insulation plate and filtering tank for eliminating iron, manganese were mainly developed for making the coefficient of performance (COP) of heat pump higher. Heating system using riverbank filtration water source heat pump was installed at a paprika greenhouse in the Jinju region where a single fold of vinyl cover and 2 layers of horizontal thermal curtain were installed as a part of temperature keeping and heat insulation with a greenhouse area of 3,185 $m^2$. 320,000 kcal/h was supplied for performing a site application tests. A greenhouse heating test was performed from Feb. 1, 2011 to Apr. 30, 2011. As the result of that, COPh of the heat pump was measured in the range of 4.0~4.5, while COPS of the system was represented as 2.9~3.3. COP measured of the heat pump was very good and well responded to indoor heating temperature of the environment control system of a greenhouse.

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References

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  1. Data-Based Model Approach to Predict Internal Air Temperature of Greenhouse vol.57, pp.3, 2015, https://doi.org/10.5389/KSAE.2015.57.3.009