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Dynamic Energy Analysis of Building Integrated Rooftop Greenhouse for Urban Agriculture
Authors: Uk-hyeon Yeo, In-bok Lee
Identifier: CSBE21917
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Published in: CSBE-SCGAB Technical Conferences » 5th CIGR and AGM Quebec City 2021 » Regular Sessions
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Description: Rooftop greenhouse (RTG), which utilizes various forms of idle space such as the rooftop of public facilities and residential facilities, and has the ability to produce stable crops throughout the year through environmental control, is drawing keen attention from developed countries. In the case of the RTG, energy efficiency can be maximized by exchanging excess energy (water, CO2, heat) and minimizing the energy for transportation and storage, reducing the productive distance between agricultural products and consumers. This not only generates economic benefits but contributes to environmental benefits such as the reduction of greenhouse gas emissions. However, the energy performance of the construction plan should be evaluated to reduce unnecessary budget consumption in advance for the development and improvement of new systems such as the RTGs. Therefore, the aim of this study was to analyze the energy savings when greenhouse was installed on the rooftop (RTG) of a building using the building energy simulation technique. Calculated annual energy load for single greenhouses growing tomatoes showed 490,128 MJ. Whereas, the annual energy load for growing tomatoes in the RTG resulted in an average 5.2% reduction at 464,673 MJ. In addition, the energy load from the application of the appropriate air temperature for growth in single greenhouses without growing tomato crops was 479,011 MJ per year. However, considering the cultivation of tomato crops, the total annual energy load was 490,128 MJ per year, and 2.3% increase in energy load was expected in winter due to latent heat and shadow effects of crops.
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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Agriculture and Society 2
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Type: Text.Abstract
Format:
Publication type: Presentation
Source:
Relation:
Coverage: Korea, Republic of (South Korea)
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
DOI:
Description: Rooftop greenhouse (RTG), which utilizes various forms of idle space such as the rooftop of public facilities and residential facilities, and has the ability to produce stable crops throughout the year through environmental control, is drawing keen attention from developed countries. In the case of the RTG, energy efficiency can be maximized by exchanging excess energy (water, CO2, heat) and minimizing the energy for transportation and storage, reducing the productive distance between agricultural products and consumers. This not only generates economic benefits but contributes to environmental benefits such as the reduction of greenhouse gas emissions. However, the energy performance of the construction plan should be evaluated to reduce unnecessary budget consumption in advance for the development and improvement of new systems such as the RTGs. Therefore, the aim of this study was to analyze the energy savings when greenhouse was installed on the rooftop (RTG) of a building using the building energy simulation technique. Calculated annual energy load for single greenhouses growing tomatoes showed 490,128 MJ. Whereas, the annual energy load for growing tomatoes in the RTG resulted in an average 5.2% reduction at 464,673 MJ. In addition, the energy load from the application of the appropriate air temperature for growth in single greenhouses without growing tomato crops was 479,011 MJ per year. However, considering the cultivation of tomato crops, the total annual energy load was 490,128 MJ per year, and 2.3% increase in energy load was expected in winter due to latent heat and shadow effects of crops.
Keywords:
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2021-06-11
Technical field:
Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Agriculture and Society 2
Other information:
Type: Text.Abstract
Format:
Publication type: Presentation
Source:
Relation:
Coverage: Korea, Republic of (South Korea)
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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