Experimental Research on Performance of VRF-Based Household Radiant Air-Conditioning System

2020 ◽  
pp. 845-853
Author(s):  
Danyang Wang ◽  
Jianbo Chen ◽  
Chenyue Yan ◽  
Meng Zhao
Keyword(s):  
Experimental Research ◽  
Air Conditioning ◽  
Air Conditioning System

Experimental Research on the Condensation Air Blower of Overhead Automobile Air-Conditioning

2013 ◽  
Vol 347-350 ◽  
pp. 191-196
Author(s):  
Min Yan Di ◽  
Yong Yao ◽  
Dan Di ◽  
Yu Xia Lu
Keyword(s):  
Experimental Research ◽  
Air Conditioning ◽  
Experimental Results ◽  
Specific Method ◽  
Bldc Motor ◽  
Air Conditioning System ◽  
Existing Problems ◽  
Air Blower ◽  
Improved Methods ◽  
Automobile Air Conditioning

It describes the types,the existing problems and three improved methods on the condensation air blower of roof-mounted automobile air-conditioning. It details a specific method, a practical circuit and the experimental results of the sensorless BLDC motor for condensing blower based on dsPIC30F4011 control,. According to the need of the current States on automatically climate air conditioning system (ACC system) , and the features of the roof-mounted automobile air-conditioning, we think it is more reasonable,the dsPIC30F4011 and the sensorless BLDC motor can be used for the the condensation air blower of automobile air conditioning.

Experimental Research on Air-Conditioning with Supplying Hot-Water

2012 ◽  
Vol 170-173 ◽  
pp. 2541-2545
Author(s):  
Jun Po Zhu ◽  
Ting Xiang Jin
Keyword(s):  
Experimental Research ◽  
Air Conditioning ◽  
Hot Water ◽  
Experimental Results ◽  
Coefficient Of Performance ◽  
Water Heater ◽  
Air Conditioning System ◽  
Static Heating ◽  
Maximum Coefficient ◽  
Heating Mode

This paper developed the air-conditioning system with supplying hot water. The system can work in three modes: only refrigeration, only supplying hot water and refrigeration with supplying hot water. The experimental results showed that the system is more effective than traditional systems, the maximum coefficient of performance (COP) is about 5.34 at refrigeration mode, the COP is 5.78 at static heating mode of heating, and the COP is 4.5 at refrigeration and water heater mode.

Experimental research on charge determination and accumulator behavior in trans-critical CO2 mobile air-conditioning system

Energy ◽  
2019 ◽  
Vol 183 ◽  
pp. 106-115 ◽  
Author(s):  
Dandong Wang ◽  
Zhenyu Zhang ◽  
Binbin Yu ◽  
Xinnan Wang ◽  
Junye Shi ◽  
...  
Keyword(s):  
Experimental Research ◽  
Air Conditioning ◽  
Air Conditioning System ◽  
In Trans ◽  
Charge Determination

ANALYSIS OF COMPETING VARIANTS OF AIR CONDITIONING SYSTEMS WITHOUT AIR EXTRACTION FROM ENGINES AT THE STAGE OF PASSENGER AIRCRAFT ONBOARD SYSTEMS CONCEPTUAL DESIGN

2019 ◽  
Vol 6 (3) ◽  
pp. 80-85
Author(s):  
Denis Igorevich Smagin ◽  
Konstantin Igorevich Starostin ◽  
Roman Sergeevich Savelyev ◽  
Anatoly Anatolyevich Satin ◽  
Anastasiya Romanovna Neveshkina ◽  
...  
Keyword(s):  
Conceptual Design ◽  
Air Conditioning ◽  
Research University ◽  
Cooling System ◽  
Fuel Efficiency ◽  
Air Cooling ◽  
Moscow Aviation Institute ◽  
Air Conditioning System ◽  
Low Efficiency ◽  
Air Conditioning Systems

One of the ways to achieve safety and comfort is to improve on-board air conditioning systems.The use of air cooling machine determines the air pressure high level at the point of selection from the aircraft engine compressor. Because of the aircraft operation in different modes and especially in the modes of small gas engines, deliberately high stages of selection have to be used for ensuring proper operation of the refrigeration machine in the modes of the aircraft small gas engines. Into force of this, most modes of aircraft operation have to throttle the pressure of the selected stage of selection, which, together with the low efficiency of the air cycle cooling system, makes the currently used air conditioning systems energy inefficient.A key feature of the architecture without air extraction from the main engines compressors is the use of electric drive compressors as a source of compressed air.A comparative analysis of competing variants of on-board air conditioning system without air extraction from engines for longrange aircraft projects was performed at the Moscow Aviation Institute (National Research University).The article deals with the main approaches to the decision-making process on the appearance of a promising aircraft on-board air conditioning system at the stage of its conceptual design and formulated the basic requirements for the structure of a complex criterion at different life cycle stages.The level of technical and technological risk, together with a larger installation weight, will require significant costs for development, testing, debugging and subsequent implementation, but at the same time on-board air conditioning system scheme without air extraction from the engines will achieve a significant increase in fuel efficiency at the level of the entire aircraft.

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