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2022 Vol.16, Issue 3 Preview Page

Research Article

Evaluation of Cooling Capacity of Radiant Cooling Panel Integrated with Light Shelf Function

광선반 기능이 결합된 복사냉방 패널의 냉방용량 평가

Kyu-Nam Rhee1
,
Jong-Ho Park2
,
Sang-Yeop Kim3
,
Gun-Joo Jung4*
이 규남1
,
박 종호2
,
김 상엽3
,
정 근주4*
1Associate Professor, Department of Architectural Engineering, Pukyong National University, Busan, Korea
2Undergraduate Student, Department of Architectural Engineering, Pukyong National University, Busan, Korea
3Master Student, Department of Architectural and Fire Protection Engineering, Graduate School, Pukyong National University, Busan, Korea
4Professor, Department of Architectural Engineering, Pukyong National University, Busan, Korea
1부경대학교 건축공학과 부교수
2부경대학교 건축공학과 학사과정
3부경대학교 대학원 건축·소방공학부 석사과정
4부경대학교 건축공학과 교수
*Corresponding Author
30 June 2022. pp. 231-240
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Abstract

The present study was conducted to evaluate the cooling capacity of a thermally activated light shelf (TALS), which can be regarded as radiant cooling panel integrated with light shelf. A　mock-up test chamber and Physibel simulation model were developed, considering that the upper and lower surfaces of TALS are exposed to room air and cooling load. Mock-up test results showed that the cooling capacity increases from 57.5 to 82 W/㎡ when the additional cooling load is applied to the upper surface of TALS. As the developed simulation model showed a good agreement with the experimental results, several simulations were performed to investigate the TALS cooling capacity under different cooling load and chilled water conditions. Cooling capacity was 56.1~98.3 W/㎡ while the temperature difference between room air and mean water temperature (Δθ) was 9.4~15.2 K. Further studies are suggested to achieve a sufficient cooling capacity of TALS without excessive temperature difference Δθ.

Keywords
Radiant cooling panel
Light shelf
Cooling capacity
Cooling load
Heat transfer analysis
키워드
복사냉방패널
광선반
냉방용량
냉방부하
전열해석
References
1
Bahdad, A.A.S., Fadzil, S.F.S., Onubi, H.O., BenLasod, S.A. (2021). Sensitivity analysis linked to multi-objective optimization for adjustments of light-shelves design parameters in response to visual comfort and thermal energy performance. Journal of Building Engineering, 44, 102996. 10.1016/j.jobe.2021.102996
2
Hwang, T.Y., Rhee, K.N. (2021). Simulation Study on Cooling Effect of Thermally Activated Light Shelf (TALS) System. Journal of The Korean Solar Energy Society, 41(6), 39-50. 10.7836/kses.2021.41.6.039
3
Jeon, G.M., Lee, H.W., Seo, J.H., Kim, Y.S. (2016). Performance Evaluation of Light-Shelf based on Light Enviorment and Air Conditioner Enviorment. Journal of Korea Institute of Ecological Architecture and Environment, 16(5), 47-55. 10.12813/kieae.2016.16.5.047
4
Lee, H.W., Kim, D.S., Kim, Y.S. (2013). Simulation Study on the Performance Evaluation of Light-shelf focused on the Depth of Space and the Dimensions and Angles of Light-shelf. Journal of Architectural Institute of Korea, 29(3), 335-344.
5
Lim, Y.W., Heng, C.Y.S. (2016). Dynamic internal light shelf for tropical daylighting in high-rise office buildings. Building and Environment, 106, 155-166. 10.1016/j.buildenv.2016.06.030
6
Park, S.H., Kim, D.W., Joe, G.S., Ryu, S.R., Yeo, M.S., Kim, K.W. (2020). Establishing boundary conditions considering influence factors of the room equipped with a ceiling radiant cooling panel. Energies, 13(7), 1684. 10.3390/en13071684
7
Shin, M.S., Rhee, K.N., Park, S.H., Yeo, M.S., Kim, K.W. (2019). Enhancement of cooling capacity through open-type installation of cooling radiant ceiling panel systems. Building and Environment, 148, 417-432. 10.1016/j.buildenv.2018.11.005
8
Yu, G., Xiong, L., Du, C., Chen, H. (2018). Simplified model and performance analysis for top insulated metal ceiling radiant cooling panels with serpentine tube arrangement. Case Studies in Thermal Engineering, 11, 35-42. 10.1016/j.csite.2017.12.006
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ASHRAE. (2013). ANSI/ASHRAE Standard 138: Method of Testing for Rated Ceiling Panels for Sensible Heating and Cooling. Atlanta, US: ASHRAE.
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CEN. (2004). EN 14240: Ventilation for Buildings-Chilled Ceilings-Testing and Rating. Brussels, Belgium: CEN.
Information
  • Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
  • Publisher(Ko) :한국건축친환경설비학회
  • Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
  • Journal Title(Ko) :한국건축친환경설비학회논문집
  • Volume : 16
  • No :3
  • Pages :231-240
  • Received Date : 2022-06-16
  • Revised Date : 2022-06-23
  • Accepted Date : 2022-06-24
  • DOI :https://doi.org/10.22696/jkiaebs.20220020
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