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2020 Vol.14, Issue 6 Preview Page

Research Article

Development of Cooling Capacity Evaluation Unit for a Ceiling Radiant Cooling Panel considering the Effect of Air Velocity

기류속도의 영향을 고려한 천장복사냉방패널의 냉방용량 평가 유닛 개발

Kyu-Nam Rhee1†
,
Sang-Yeop Kim2
,
Ji-Su Choi3
이 규남1†
,
김 상엽2
,
최 지수3
1Associate Professor, Department of Architectural Engineering, Pukyong National University, Busan, Korea
2Undergraduate Student, Department of Architectural Engineering, Pukyong National University, Busan, Korea
3Master Student, Division of Architectural and Fire Protection Engineering, Graduate School, Pukyong National University, Busan, Korea
1부경대학교 건축공학과 부교수
2부경대학교 건축공학과 학부과정
3부경대학교 대학원 건축·소방공학부 석사과정
*knrhee@pknu.ac.kr
30 December 2020. pp. 639-650
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Abstract

In this study, an evaluation unit was proposed to analyze the cooling capacity of ceiling radiant cooling panel (CRCP) system. The aim of this study was to develop a low-cost and simple testing device by which the cooling capacity of a single CRCP can be evaluated and the impact of air velocity on the cooling capacity can be analyzed. For this purpose, a thermoelectric element module (TEM) was adopted to produce the hot water for the cooling load as well as the chilled water for the CRCP. The configuration of TEM, cooling fans, and radiator was studied to achieve the proper temperature of hot and chilled water. In addition, a cross flow fan and fan speed controller were deployed to represent the air flow at panel surface. The test results showed that the cooling capacity of the evaluated CRCP was 103.3 W/㎡, without the air flow at panel surface. It was also found that the cooling capacity can be enhanced up to 176.0 W/㎡ when the air velocity increases up to 2.0 m/s. The enhanced cooling capacity led to the increased temperature difference between room air and chilled water, which implies the possible mitigation of condensation risks.

Keywords
Ceiling radiant cooling panel
Cooling capacity
Thermoelectric element
Air velocity
키워드
천장복사냉방패널
냉방용량
평가 유닛
열전소자
기류속도
References
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2
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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 : 14
  • No :6
  • Pages :639-650
  • Received Date : 2020-10-14
  • Revised Date : 2020-11-03
  • Accepted Date : 2020-11-03
  • DOI :https://doi.org/10.22696/jkiaebs.20200054
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