All Issue

2019 Vol.39, Issue 3 Preview Page

Research Article

Thermal Environment Around the Outdoor Unit Installed in the Space between Buildings in the Commercial Area

상업지역내 건물 사이 공간에 설치된 실외기 주변 열 환경 분석

Hak-Jong Shin1
,
In-Kyu Kwak2
,
Sun-Hye Mun3
,
Jung-Ho Huh4*
신 학종1
,
곽 인규2
,
문 선혜3
,
허 정호4*
1Department of Architectural Engineering, University of Seoul, Graduate Student
2CJ Logistics, Employee
3Department of Architectural Engineering, University of Seoul, Research Professor
4Department of Architectural Engineering, University of Seoul, Professor
1서울시립대학교 건축공학과, 석사과정
2CJ대한통운 건설부문, 사원
3서울시립대학교 건축공학과, 연구교수
4서울시립대학교 건축공학과, 교수
*Corresponding Author 
30 June 2019. pp. 19-27
PDF XML Citation
Abstract

In commercial areas, outdoor units are typically installed close to one another in the narrow space between buildings due to insufficient regulations. This makes it difficult to ventilate the discharge airflow, which may lead to deterioration of the performance of outdoor units. This study conducted CFD simulation to analyze the thermal environment according to the installation distance of the outdoor unit. The outdoor unit was installed in the space between buildings, and the thermal environment was analyzed by changing installation distance and wind speed. The performance of the outdoor unit was evaluated by measuring the on-coil temperature. The results show that the closer the distance between outdoor units, the higher the condenser on-coil temperature. Also, the on-coil temperature appeared to rise dramatically at lower wind speed.

Keywords
Outdoor unit
Commercial area
Install distance of outdoor unit
On-coil temperature
Computational Fluid Dynamics

키워드
실외기
상업지역
실외기 설치 간격
응축기 흡입 면 온도
CFD
References
1
Chow. T.T., Lin. Z., and Yang. X.Y., Placement of Condensing Units of Split-type Air-conditioners at Low-rise Residences, Applied Thermal Engineering, Vol. 22, pp.1431-1444, 2002.
10.1016/S1359-4311(02)00068-6
2
Chow. T.T. and Lin. Z., Prediction of On-coil Temperature of Condensers Installed at Tall Building Re-entrant, Applied Thermal Engineering, Vol. 19, pp.117-132, 1999.
10.1016/S1359-4311(98)00042-8
3
Avara. Abdollah. and Daneshgar. Ehsan., Optimum Placement of Condensing Units of Split-type Air-conditioners by Numerical Simulation, Energy and Buildings, Vol. 40, pp.1268-1272, 2008.
10.1016/j.enbuild.2007.11.011
4
Duan. R., Wang. X., Song. Y., and Liu. J., Influence of Air-conditioning Outdoor Unit Arrangement Strategy on Energy Consumption, Procedia Engineering, Vol. 146, pp.350-358, 2016.
10.1016/j.proeng.2016.06.409
5
Xue. H., Xu. B., Wu. J., and Wei. Y., Prediction of Temperature Rise Near Condensing Units in the Confined Space of a High-rise Building, Building and Environment, Vol. 42, pp.2480-2487, 2007.
10.1016/j.buildenv.2006.06.011
6
Nada. S.A. and Said. M.A., Performance and Energy Consumptions of Split Type Air Conditioning Units for Different Arrangements of Outdoor Units in Confined Building Shafts, Applied Thermal Engineering, Vol.123, pp.874-890, 2017.
10.1016/j.applthermaleng.2017.05.104
7
Nada. S.A. and Said. M.A., Solutions of Thermal Performance Problems of Installing AC Outdoor Units in Buildings Light Wells Using Mechanical Ventilations, Applied Thermal Engineering, Vol.131, pp.295-310, 2018.
10.1016/j.applthermaleng.2017.12.016
8
Choi. S.H., Lee. K.S., and Kim. B.S., Analysis of the Condenser Performance Installed in the Air-Conditioning Plant Room of a High-Rise Building, Korea Journal of Air-Conditioning and Refrigeration Engineering, Vol.15, No.7, pp.586-894, 2003.
9
Choi. S.H., Lee. K.S., and Kim. B.S., Effects of Stacked Condensers in a High-rise Apartment Building, Energy, Vol. 30, pp.968-981, 2004.
10.1016/j.energy.2004.08.004
10
Hur. H., Seo. Y.M., Jeong. M., and Ha. M.Y., Effect of the Air-guide on Thermal Environment with Group Installation of System Air-conditioner Outdoor Unit, Journal of Computational Fluids Engineering, Vol.22, No.2, pp.21-27, 2017.
10.6112/kscfe.2017.22.2.021
11
Reiter. S., Validation Process for CFD Simulations of Wind Around Buildings, EUROPEAN BUILT ENVIRONMENT CAE CONFERENCE, 2008.
Information
  • Publisher :Korean Solar Energy Society
  • Publisher(Ko) :한국태양에너지학회
  • Journal Title :Journal of the Korean Solar Energy Society
  • Journal Title(Ko) :한국태양에너지학회 논문집
  • Volume : 39
  • No :3
  • Pages :19-27
  • Received Date : 2019-12-31
  • Revised Date : 2019-03-11
  • Accepted Date : 2019-05-20
  • DOI :https://doi.org/10.7836/kses.2019.39.3.019
Journal Informaiton Journal of the Korean Solar Energy Society Journal of the Korean Solar Energy Society
Online Submission
  • NRF
  • KOFST
  • crossref crossmark
  • crossref cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close