Effect of Inlet Pressure, Size and Wind Speed of an Evaporator on Amount of Refrigerant Charge and Performance of a Portable Propane Air Conditioner
Paper
Tangalajuk Siang, Jeri and Sharifian, Ahmad. 2018. "Effect of Inlet Pressure, Size and Wind Speed of an Evaporator on Amount of Refrigerant Charge and Performance of a Portable Propane Air Conditioner." 4th International Conference on Science and Technology (ICST 2018). Yogyakarta, Indonesia 07 - 08 Aug 2018 New York, United States. https://doi.org/10.1109/ICSTC.2018.8528623
| Paper/Presentation Title | Effect of Inlet Pressure, Size and Wind Speed of an Evaporator on Amount of Refrigerant Charge and Performance of a Portable Propane Air Conditioner |
|---|---|
| Presentation Type | Paper |
| Authors | Tangalajuk Siang, Jeri (Author) and Sharifian, Ahmad (Author) |
| Journal or Proceedings Title | Proceedings of the 4th International Conference on Science and Technology (ICST 2018) |
| Article Number | TS-091 |
| Number of Pages | 6 |
| Year | 2018 |
| Place of Publication | New York, United States |
| ISBN | 9781538658130 |
| Digital Object Identifier (DOI) | https://doi.org/10.1109/ICSTC.2018.8528623 |
| Web Address (URL) of Paper | https://ieeexplore.ieee.org/document/8528623 |
| Conference/Event | 4th International Conference on Science and Technology (ICST 2018) |
| Event Details | 4th International Conference on Science and Technology (ICST 2018) Event Date 07 to end of 08 Aug 2018 Event Location Yogyakarta, Indonesia |
| Abstract | Previous studies show that propane refrigerant has good performance in air conditioners, but the drawback of its flammability needs attention. The propane air conditioner should be designed for minimum refrigerant charge. In this work, the amount of refrigerant charge and cooling capacity of the air conditioner are the focus of analysis. The effect of the evaporator's variation of inlet pressure and variation of air speed over the evaporator on cooling capacity and amount of refrigerant within the evaporator are discussed. This research is mainly computational work with limited experimental validation. We found that, for a single duct portable propane air conditioner, cooling capacity increases from 0.956 kW to 4.319 kW when the inlet pressure of the evaporator is changed from 0.8 MPa to 0.4 MPa. Under the same condition, the accumulated refrigerant mass within the evaporator decreases from 176.846 g to 67.768 g. Increase in air speed over the evaporator increases the cooling capacity from 3.208 kW to 4.275 kW when the air speed increases from 1.0 m/s to 3 m/s, while refrigerant mass decreases from 110.307 g to 68.033 g. It should be noted that, at the lower inlet pressure of the evaporator, frost quickly appears on evaporator coils. |
| Keywords | air conditioning, cooling, design engineering, evaporation, flammability, indoor environment, organic compounds, refrigerants, refrigeration |
| ANZSRC Field of Research 2020 | 401702. Dynamics, vibration and vibration control |
| 401408. Manufacturing processes and technologies (excl. textiles) | |
| 401204. Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics) | |
| 401703. Energy generation, conversion and storage (excl. chemical and electrical) | |
| 409999. Other engineering not elsewhere classified | |
| 401205. Experimental methods in fluid flow, heat and mass transfer | |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | School of Mechanical and Electrical Engineering |
| Institution of Origin | University of Southern Queensland |
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