Abstract
A cooling system is adopted to control the thermal load from avionic equipment in a reconnaissance aircraft such as an unmanned aerial vehicle that undergoes large and rapid environmental changes according to the flight altitude and velocity. In this study, an avionic cooling system using R236fa was manufactured by adopting a vapor compression cycle with a closed-loop air-circulation system. Before the normal tests, the cooling system was optimized by varying the refrigerant charge amount and the expansion valve opening. The performance characteristics of the cooling system were measured by varying the compressor rotating speed, thermal load, evaporator and condenser air flow rates, and condenser inlet air temperature. The performance of the cooling system was analyzed according to these operating parameters, and possible control methods for stable operation of the cooling system were suggested.
| Original language | English |
|---|---|
| Pages (from-to) | 785-794 |
| Number of pages | 10 |
| Journal | International Journal of Refrigeration |
| Volume | 35 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2012 Jun 1 |
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Keywords
- Compressor
- Cooling
- Electronic expansion valve
- Mechanical vapor compression
- R236fa
ASJC Scopus subject areas
- Mechanical Engineering
- Building and Construction
Cite this
Performance characteristics of a vapor compression cooling cycle adopting a closed-loop air-circulation system for avionic reconnaissance equipment. / Kang, Hoon; Heo, Jaehyeok; Kim, Yong Chan.
In: International Journal of Refrigeration, Vol. 35, No. 4, 01.06.2012, p. 785-794.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Performance characteristics of a vapor compression cooling cycle adopting a closed-loop air-circulation system for avionic reconnaissance equipment
AU - Kang, Hoon
AU - Heo, Jaehyeok
AU - Kim, Yong Chan
PY - 2012/6/1
Y1 - 2012/6/1
N2 - A cooling system is adopted to control the thermal load from avionic equipment in a reconnaissance aircraft such as an unmanned aerial vehicle that undergoes large and rapid environmental changes according to the flight altitude and velocity. In this study, an avionic cooling system using R236fa was manufactured by adopting a vapor compression cycle with a closed-loop air-circulation system. Before the normal tests, the cooling system was optimized by varying the refrigerant charge amount and the expansion valve opening. The performance characteristics of the cooling system were measured by varying the compressor rotating speed, thermal load, evaporator and condenser air flow rates, and condenser inlet air temperature. The performance of the cooling system was analyzed according to these operating parameters, and possible control methods for stable operation of the cooling system were suggested.
AB - A cooling system is adopted to control the thermal load from avionic equipment in a reconnaissance aircraft such as an unmanned aerial vehicle that undergoes large and rapid environmental changes according to the flight altitude and velocity. In this study, an avionic cooling system using R236fa was manufactured by adopting a vapor compression cycle with a closed-loop air-circulation system. Before the normal tests, the cooling system was optimized by varying the refrigerant charge amount and the expansion valve opening. The performance characteristics of the cooling system were measured by varying the compressor rotating speed, thermal load, evaporator and condenser air flow rates, and condenser inlet air temperature. The performance of the cooling system was analyzed according to these operating parameters, and possible control methods for stable operation of the cooling system were suggested.
KW - Compressor
KW - Cooling
KW - Electronic expansion valve
KW - Mechanical vapor compression
KW - R236fa
UR - http://www.scopus.com/inward/record.url?scp=84862794827&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84862794827&partnerID=8YFLogxK
U2 - 10.1016/j.ijrefrig.2011.11.021
DO - 10.1016/j.ijrefrig.2011.11.021
M3 - Article
AN - SCOPUS:84862794827
VL - 35
SP - 785
EP - 794
JO - International Journal of Refrigeration
JF - International Journal of Refrigeration
SN - 0140-7007
IS - 4
ER -