Abstract
This paper proposes a theoretical model to investigate the thermal performance of a cold storage system with multi-loop wickless heat pipes. The cold storage system utilizes the superior heat transfer characteristics of heat pipe and eliminates drawbacks found in the conventional thermal storage tank. A modified RC circuit model to determine the thermal characteristics of the cold storage system has been developed. Experimental investigations are then conducted to study the cold storage thermal performance in an experimental system with the ratio of distance between heat pipes to outer diameter of heat pipe W/D = 2. Different heat transfer mechanisms, including nucleate boiling, geyser boiling, and natural convection, are identified in different experimental systems with various liquid fills. This paper probes the effect of the fill level on cold storage rate and cumulative cold storage quantity. Comparisons of this theory with experimental data show good agreements in the nucleate boiling stage of cold storage process.
| Original language | English |
|---|---|
| Article number | 4777 |
| Pages (from-to) | 387-394 |
| Number of pages | 8 |
| Journal | ASHRAE Transactions |
| Volume | 111 PART 1 |
| Publication status | Published - 2005 Nov 16 |
| Event | American Society of Heating, Refrigerating and Air-Conditioning Engineers ASHRAE 2005 Winter Meeting - Orlando, FL, United States Duration: 2005 Feb 5 → 2005 Feb 9 |
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ASJC Scopus subject areas
- Building and Construction
- Mechanical Engineering
Cite this
Modified RC thermal circuit model applied to cold storage system with multi-loop heat pipes. / Chiang, Yuan Ching; Chen, Huei Chun; Chieh, Jen-Je; Chen, Sih Li.
In: ASHRAE Transactions, Vol. 111 PART 1, 4777, 16.11.2005, p. 387-394.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Modified RC thermal circuit model applied to cold storage system with multi-loop heat pipes
AU - Chiang, Yuan Ching
AU - Chen, Huei Chun
AU - Chieh, Jen-Je
AU - Chen, Sih Li
PY - 2005/11/16
Y1 - 2005/11/16
N2 - This paper proposes a theoretical model to investigate the thermal performance of a cold storage system with multi-loop wickless heat pipes. The cold storage system utilizes the superior heat transfer characteristics of heat pipe and eliminates drawbacks found in the conventional thermal storage tank. A modified RC circuit model to determine the thermal characteristics of the cold storage system has been developed. Experimental investigations are then conducted to study the cold storage thermal performance in an experimental system with the ratio of distance between heat pipes to outer diameter of heat pipe W/D = 2. Different heat transfer mechanisms, including nucleate boiling, geyser boiling, and natural convection, are identified in different experimental systems with various liquid fills. This paper probes the effect of the fill level on cold storage rate and cumulative cold storage quantity. Comparisons of this theory with experimental data show good agreements in the nucleate boiling stage of cold storage process.
AB - This paper proposes a theoretical model to investigate the thermal performance of a cold storage system with multi-loop wickless heat pipes. The cold storage system utilizes the superior heat transfer characteristics of heat pipe and eliminates drawbacks found in the conventional thermal storage tank. A modified RC circuit model to determine the thermal characteristics of the cold storage system has been developed. Experimental investigations are then conducted to study the cold storage thermal performance in an experimental system with the ratio of distance between heat pipes to outer diameter of heat pipe W/D = 2. Different heat transfer mechanisms, including nucleate boiling, geyser boiling, and natural convection, are identified in different experimental systems with various liquid fills. This paper probes the effect of the fill level on cold storage rate and cumulative cold storage quantity. Comparisons of this theory with experimental data show good agreements in the nucleate boiling stage of cold storage process.
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UR - http://www.scopus.com/inward/citedby.url?scp=27644524606&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:27644524606
VL - 111 PART 1
SP - 387
EP - 394
JO - ASHRAE Transactions
JF - ASHRAE Transactions
SN - 0001-2505
M1 - 4777
ER -