NUMERICAL STUDY ON THE VENTILATION PERFORMANCE OF GREENHOUSE ACCORDING TO ROOF VENT CONFIGURATION

S.-H. Kang; S.H. Yum

doi:10.6112/kscfe.2025.30.3.167

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2025 Vol.30, Issue 3 Preview Page

Original Article

NUMERICAL STUDY ON THE VENTILATION PERFORMANCE OF GREENHOUSE ACCORDING TO ROOF VENT CONFIGURATION 비닐온실의 지붕 환기 방식에 따른 환기 성능 수치해석 연구

30 September 2025. pp. 167-176

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Abstract

In the present study, the ventilation performance of two different Venlo-typed greenhouse with a roll-up typed roof and one with a rack-and-pinion typed roof is numerically investigated under hot temperature conditions. The thermal-flow fields and ventilation performance of the greenhouse are analyzed and compared by a commercial software. The results show that the roll-up roof greenhouse, despite having a slightly lower ventilation rate, offers the advantage of uniform internal cooling due to stable airflow along its streamlined roof. In contrast, the rack-and-pinion greenhouse provides a higher overall ventilation rate but creates localized high-temperature zone due to flow separation around the vents, leading to significant non-uniformity in the internal temperature distribution.

Keywords

Roll-up typed roof greenhouse

Rack-and-pinion typed roof greenhouse

Ventilation performance

Solar radiation energy

Discrete ordinates radiation model

키워드

권취식 지붕 비닐온실

랙피니언 방식 지붕 비닐온실

환기 성능

태양 복사에너지

Discrete Ordinates 복사 모델

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Information

Publisher :Korean Society for Computational Fluids Engineering
Publisher(Ko) :한국전산유체공학회
Journal Title :Journal of Computational Fluids Engineering
Journal Title(Ko) :한국전산유체공학회지
Volume : 30
No :3
Pages :167-176
Received Date : 2025-07-22
Revised Date : 2025-08-28
Accepted Date : 2025-08-28
DOI :https://doi.org/10.6112/kscfe.2025.30.3.167

Journal of Computational Fluids Engineering ISSN:1598-6071(Print) 3022-6252(Online) 한국전산유체공학회지

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