Performance of a Split-Type Air Conditioner with Natural Refrigerant R1270 to Replace R22

2011 ◽  
Vol 243-249 ◽  
pp. 4979-4982 ◽  
Author(s):  
Jian Bo Chen ◽  
He Li ◽  
Chao Yang Ji ◽  
Ling Xi
Keyword(s):  
System Performance ◽  
Cooling Capacity ◽  
Air Conditioner ◽  
Environment Friendly ◽  
Cooling Performance ◽  
Natural Refrigerant

A natural and environment friendly refrigerant propylene (R1270) is proposed as a substitute of R22 in the residential air conditioner. The experiments on the cooling performance of the air conditioner with R1270 and R22 were respectively conducted on an existing enthalpy potential bench, during the degree of superheating keep constant and refrigerant charge directly on the conditioner, also the effect on system performance in the condensing temperature was tested, it is founded that the cooling capacity of R1270 air conditioner was 96% that of R22 air conditioner while the COP of the former increased, and the refrigerant charge amount of R1270 was 56.8 % lower than R22.

Performance of Air Cooled Heat Pump Air Conditioner with Natural Refrigerant R1270 and R290 to Replace R22

2011 ◽  
Vol 374-377 ◽  
pp. 484-487
Author(s):  
Jian Bo Chen ◽  
He Li ◽  
Ling Xi
Keyword(s):  
Heat Pump ◽  
Original System ◽  
Cooling Capacity ◽  
Air Conditioner ◽  
Environment Friendly ◽  
Running Performance ◽  
Natural Refrigerant

A natural and environment friendly refrigerant propylene and propane are proposed as the substitute of R22 in air conditioner. The experiments were respectively conducted on an existing enthalpy potential lab. Refrigerant charge was held at the constant superheat condition. It is founded that the cooling capacity of R1270 was 96% of R22 system while the R290 was 92% of R22 system, but the COP bother higher than the former system, the refrigerant charge of R1270 was reduced 56.8% of R22 while R290 was 58.4%. With the condensing temperature increased, the system’s cooling capacity is gradually reduced, the cooling capacity of R1270 and R290 are decreased faster than R22, this indicate that R1270 can improve the running performance of system and has more advantages than R290 as substitute for R22, if do some improvement to the original system, can obtain a better results.

scholarly journals Investigation on the improvement of car air conditioning system performance using an ejector

2018 ◽  
Vol 197 ◽  
pp. 08013
Author(s):  
Enang Suma Arifianto ◽  
Ega Taqwali Berman ◽  
Mutaufiq Mutaufiq
Keyword(s):  
System Performance ◽  
Test Procedure ◽  
Cooling Capacity ◽  
Coefficient Of Performance ◽  
Working Fluid ◽  
Refrigeration Cycle ◽  
Air Conditioner ◽  
Air Conditioning System ◽  
Compressor Work ◽  
R 134A

The purpose of this research is to know the improvement of car air conditioner system performance using an ejector. The study was conducted on a car engine with power 100 PS (74 kW) @ 5000 rpm. The test procedure is carried out under two conditions: the normal refrigeration cycle mode and the refrigeration cycle mode with the ejector. The working fluid used in the refrigeration cycle is R-134a. Performance data was measured on engine revolutions ranging from 1500 - 3000 rpm. Finally, the results showed that ejector usage on AC system generates an increase in the refrigeration effect and coefficient of performance (COP) of 25% and 22%, respectively. This has implications to better cooling capacity and compressor work that is lighter.

scholarly journals The Influence of Room and Ambient Temperatures of Exergy Loss in Air Conditioning Using Ejector as an Expansion Device with R290 as Working Fluid

2019 ◽  
Vol 130 ◽  
pp. 01019
Author(s):  
Kasni Sumeru ◽  
Pratikto Pratikto ◽  
Andriyanto Setyawan ◽  
Adenkule Moshood Abioye
Keyword(s):  
Air Conditioning ◽  
Exergy Analysis ◽  
Numerical Approach ◽  
Cooling Capacity ◽  
Exergy Loss ◽  
Working Fluid ◽  
Air Conditioner ◽  
Ambient Temperatures ◽  
Environmental Friendly ◽  
Natural Refrigerant

This paper presents a numerical approach on exergy loss in an air conditioner (A/C) using ejector asexpansion device with R290 (propane) as working fluid. R290 is a natural refrigerant and environmental friendly, recommended by many researchers as a substitute for R22. In the numerical approach, exergy analysis was carried out on an A/C with cooling capacity of 2.4 kW, and the room and the ambient temperatures were varied from 18 °C to 26 °C and 30 °C to 34 °C respectively. The results show that the total exergy loss in an air conditioner using ejector as an expansion device is lower than that of using conventional as an expansion device. In addition, exergy analysis shows that thegradients of increment of total exergy loss due to increase in the ambient temperature are constant, that is 0.003 for the five different room temperatures, namely 18 °C, 20 °C, 22 °C, 24 °C and 26 °C.

Experimental and Numerical Study of Cooling Performance of Air Conditioner Using R32/CO2 Refrigerant Mixture

2019 ◽  
Vol 27 (02) ◽  
pp. 1950019
Author(s):  
Pushpak Doiphode ◽  
Vignesh Lakshmanan ◽  
Indraneel Samanta
Keyword(s):  
Ozone Depletion ◽  
Numerical Study ◽  
Cooling Capacity ◽  
Air Conditioner ◽  
Total Energy Consumption ◽  
Cooling Performance ◽  
Air Conditioners ◽  
Refrigerant Mixture ◽  
Consumption Energy ◽  
Analysis Of Performance

Conventional refrigerants such as chlorofluorocarbons and hydrochlorofluorocarbons have high values of global warming potential (GWP) and ozone depletion (ODP). HVAC&R engineers and designers are exploring alternate refrigerants having low ODP and GWP. At present, R32 refrigerant is being considered as an alternative to the conventional refrigerants in domestic air conditioners by many manufacturers and countries. This study analyzes the steady-state cooling performance of a split air conditioner using R32(CH2F2) and R32/CO2 (Carbon Dioxide) mixture having lower GWP. The performance of the air conditioner with R32 and four different compositions of R32/CO2 mixture is studied experimentally and numerically. A comparative analysis of performance characteristics such as cooling capacity, total energy consumption, energy efficiency, operating pressures and temperatures is presented in this study.

Investigation of the cooling performance and thermal comfort for 4-way cassette air conditioner with swinging motion of vanes

2021 ◽  
Vol 35 (4) ◽  
pp. 1757-1770
Author(s):  
Ho Yeon Choi ◽  
Jae Hyun Oh ◽  
Man Su Park ◽  
Sai Kee Oh ◽  
Yong Gap Park ◽  
...  
Keyword(s):  
Thermal Comfort ◽  
Air Conditioner ◽  
Cooling Performance

scholarly journals Performance analysis of retrofit R410a refrigerant with R32 refrigerant on a split air conditioner

2021 ◽  
Vol 2 (1) ◽  
pp. 1-4
Author(s):  
I Nengah Ardita ◽  
◽  
I Gusti Agung Bagus Wirajati ◽  
I Dewa Made Susila ◽  
Sudirman Sudirman ◽  
...  
Keyword(s):  
System Performance ◽  
Air Conditioning ◽  
Quantitative Description ◽  
Air Conditioner ◽  
Experimental Equipment ◽  
Evaporation Heat ◽  
Before And After ◽  
Common Group ◽  
The Cost ◽  
Design And Manufacture

Split air conditioning (AC) is the most widely used in the community for both commercial and domestic utilities. At the present refrigerant which used in Split AC is mostly common group of HFCs, such as R410a. R410a is a zeotropic refrigerant and if there is a leak in the system, it cannot be added this refrigerant. This will increase the cost of maintenance. The aims of this research is to investigate the retrofit of R410a with R32 on the Split AC system. The R32 is chosen because it has higher latent evaporation heat at the same temperature and has less effect on global warming. The refrigeration effect, the power consumption and the system performance are the main three quantities that want to be examined in this research which are observed before and after retrofit. Experimental investigation conducted during this research, including design and manufacture of experimental equipment, calibration and tools installment, collecting the experimental data and analysis by quantitative description method before and after retrofit. The results informed that cooling effect increased during the research, but the COP system has a slight decrease about 4%. R32 refrigerant is quite feasible as a retrofit refrigerant to R410a refrigerant.

scholarly journals Design of Portable Beverage Cooler Using One Stage Thermoelectric Cooler (TEC) Module

2017 ◽  
Vol 6 (1) ◽  
pp. 29 ◽  
Author(s):  
Azridjal Aziz ◽  
Rahmat Iman Mainil ◽  
Afdhal Kurniawan Mainil ◽  
Sayfri Syafri ◽  
Muhammad Faizal Syukrillah
Keyword(s):  
Room Temperature ◽  
Thermoelectric Module ◽  
Cooling Capacity ◽  
Peltier Effect ◽  
Environmental Damage ◽  
Box Dimension ◽  
Thermoelectric Cooler ◽  
Environment Friendly ◽  
One Stage ◽  
Vapour Compression

The Portable Beverage Cooler (PBC) has been designed to satisfy the need of cooler apparatus that could be carried easily. The utilization of this apparatus was intended to minimize the environmental damage affected by vapour compression refrigeration system using CFCs Refrigerant. The peltier effect from thermoelectric module was utilized in this PBC and called as Thermoelectric Cooler (TEC). Furthermore, heat-sink and fan were needed to ensure the cooling effect continously worked. To achieved the objectives of this machine (portable, environment-friendly, low watt, affordable), the design consideration are heat load, insulating material, weight of components, electric consumption, and dimension of the cooling box.  The results of the design shows the PBC cooling box dimension is 6 cm x 6.5 x 15 cm. The insulation of the PBC cooling box are polyurethane foam and polystyrene expanded with thickness 6 mm and 5.3 mm, respectively. The alumunium plate was applied as inner wall to enhance the cooling capacity of cooling room temperature. In this PBC was used one stage of TEC that could yield cooling room temperature until 15 oC in 30 minutes operation by consuming 20 W of electricity. 

scholarly journals Cooling Capacity Improvement of Magnetic Heat Pump for On-board Air Conditioner

2015 ◽  
Vol 56 (2) ◽  
pp. 130-136
Author(s):  
Yoshiki MIYAZAKI ◽  
Koichiro WAKI ◽  
Katsutoshi MIZUNO ◽  
Kazuya IKEDA
Keyword(s):  
Heat Pump ◽  
Cooling Capacity ◽  
Air Conditioner ◽  
Capacity Improvement

scholarly journals The Effect of Refrigerant Charge and Outdoor Temperature on the Condenser and Evaporator of a Split-Unit Type Air Conditioner Using R22 Refrigerant

2018 ◽  
Vol 225 ◽  
pp. 02013
Author(s):  
Mohd Hazwan Yusof ◽  
Sulaiman Mohd Muslim ◽  
Muhammad Fadhli Suhaimi ◽  
Mohamad Firdaus Basrawi
Keyword(s):  
Cooling Capacity ◽  
Coefficient Of Performance ◽  
Air Conditioner ◽  
Outdoor Temperature ◽  
Unit Type ◽  
Small Capacity

To maintain the temperature setup on an air conditioner, the compressor will use more or less energy based on the outdoor temperature. Therefore, there is a need to understand the performance of the air conditioner if the outdoor temperature is varied. In this research, a used small capacity split-unit air conditioner using R-22 refrigerant is used to study the effect of outdoor temperature on the performance of the air conditioner. From the results, it can be understood that lower outdoor temperature requires less work from the compressor. The cooling capacity and coefficient of performance drop as the outdoor temperature increases.

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