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Optimum placement of condensing units of split-type air-conditioners by numerical simulation
Energy and Buildings, 2008Split-type air-conditioners used in residential or office buildings often have the outdoor condensing units installed at the sidewalls or on the roofs. Installation distance from the supporting wall for the first group and the height of installation for the second group are two factors that affect the condenser efficiency.
Abdollah Avara, Ehsan Daneshgar
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CFD simulation of HC-290 leakage from a split type room air conditioner
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2021HC-290 is one of the alternatives to HCFC22 in room air-conditioners. With the phase-down schedules in Kigali Amendment, it is imperative to use HC-290. However, there are concerns about its flammability in the event of a leak from the AC indoor unit (IDU).
C Ram Prakash +4 more
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Experimental study of an R290 split-type air conditioner using a falling film condenser
Applied Thermal Engineering, 2018Abstract R290 is one of the most promising refrigerants for split-type air conditioners (STAC) because of its excellent environmental and thermodynamic properties. However, R290 has flammability. There is necessary to improve the STAC design to reduce the refrigerant charge for the safety use.
Jiayao Liu, Jianxun Chen
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Placement of condensing units of split-type air-conditioners at low-rise residences
Applied Thermal Engineering, 2002This is a second paper on the use of air-conditioning plant room to house the condensing units of split-type air-conditioners in residences. A numerical analysis of the airflow and heat dissipation at the condensing units of a low-rise residence in Hong Kong is presented. At the building design stage, it was deemed that the proposed plant room location
T.T. Chow, Z. Lin, X.Y. Yang
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Assessment of leakage and risk reduction of R290 in a split type household air conditioner
International Journal of Refrigeration, 2018Abstract R290 (propane) is a famous hydrocarbon substance, but the flammable and explosive characteristics require safety precautions for its use. In fact, R290 is also a refrigerant with low global warming potential (GWP) and excellent thermodynamic properties.
Weier Tang +5 more
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2018 4th International Conference on Science and Technology (ICST), 2018
An air conditioning (AC) system is defined as a system that regulates the temperature, movement, and humidity of air in a particular room. An air conditioning system is said to have good performance if it is able to ensure a room is in a comfortable condition. A college classrooms is one place where teaching and learning activities are conducted.
Yosua Heru Irawan +5 more
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An air conditioning (AC) system is defined as a system that regulates the temperature, movement, and humidity of air in a particular room. An air conditioning system is said to have good performance if it is able to ensure a room is in a comfortable condition. A college classrooms is one place where teaching and learning activities are conducted.
Yosua Heru Irawan +5 more
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Performance study of falling film cooling condenser coil in the split-type air conditioner
2017 International Conference on Applied System Innovation (ICASI), 2017This study proposes is investigating falling and no falling condenser coil cooling systems analysis an different temperature distribution in split-type air conditioner system. The results of this study in the original drainage machinery and simplify sprinkler equipment combined into simplified falling equipment. For falling ratio changes and the impact
Chih-Neng Hsu +2 more
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Analyzing for Refrigerant Induced Noise for Split Type Air Conditioner Indoor Unit
Transactions of the Korean Society for Noise and Vibration Engineering, 2006In the air-conditioner, refrigerant induced noise and vibration can be increased when the airflow rate is reduced in order to decrease the noise at the low mode. Through the test and analysis of this kind of noise, it can be verified that the main reasons of refrigerant induced noise are the velocity and flow Induced force of the refrigerant at the ...
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Optimal thermohydraulic design of the indoor unit of a split-type air conditioner
Applied Thermal Engineering, 2022Yang-Cheng Shih +4 more
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International Journal of Refrigeration, 2012
Abstract In this paper, a kind of heat exchanger with liquid–vapor separation baffles used as condenser was proposed for enhancing its thermal performance. Two HCFC22 air-conditioning units using the new heat exchanger and the traditional fin-and-tube heat exchanger respectively were constructed.
Y. Chen, N. Hua, L.S. Deng
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Abstract In this paper, a kind of heat exchanger with liquid–vapor separation baffles used as condenser was proposed for enhancing its thermal performance. Two HCFC22 air-conditioning units using the new heat exchanger and the traditional fin-and-tube heat exchanger respectively were constructed.
Y. Chen, N. Hua, L.S. Deng
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