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Energies 2018, 11(8), 2001; https://doi.org/10.3390/en11082001

Development and Optimization of a Building Energy Simulation Model to Study the Effect of Greenhouse Design Parameters

1,†
,
2,†
and
1,3,*
1
Department of Agricultural Engineering, Kyungpook National University, Daegu 702-701, Korea
2
Department of Horticulture Environment System, Korea National College of Agriculture and Fisheries, 1515, Kongjwipatjwi-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do 54874, Korea
3
Institute of Agricultural Science & Technology, Kyungpook National University, Daegu 702-701, Korea
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 10 July 2018 / Revised: 26 July 2018 / Accepted: 30 July 2018 / Published: 1 August 2018
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Abstract

Energy management of the greenhouse is considered to be one of the most important challenges of greenhouse farming. Energy saving measures need considered, besides applying energy supplying techniques. To address this issue, a model was developed to simulate the thermal environment of a greenhouse using a Transient Systems Simulation Program (TRNSYS 17) as a building energy simulation (BES) platform. The model was calibrated by modifying the input parameters to minimize the uncertainties obtained from the results. Nash-Sutcliffe efficiency coefficients of 0.958 and 0.983 showed good agreement between the computed and experimental results. The proposed model was used to evaluate the effects of greenhouse design parameters, including roof shape, orientation, double-glazing, natural ventilation, coverings and their thickness, on its energy conservation capacity. It was found that the most suitable design for a greenhouse located in Daegu (latitude 35.53° N, longitude 128.36° E) South Korea would be east-west (E-W) oriented, with a gothic-shaped roof and double-glazing of PMMA (Polymethylmethacrylate) covering. Natural ventilation reduced the inside temperature of greenhouse, thereby reducing the energy demand of cooling. The model developed can help greenhouse farmers and researchers make pre-design decisions regarding greenhouse construction, taking their local environment and specific needs into consideration. View Full-Text
Keywords: energy conservation; structural modeling; heating load; cooling load energy conservation; structural modeling; heating load; cooling load
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Rasheed, A.; Lee, J.W.; Lee, H.W. Development and Optimization of a Building Energy Simulation Model to Study the Effect of Greenhouse Design Parameters. Energies 2018, 11, 2001.

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