The Effect of Increasing Sub-Cooling on Air-Cooled A/C System's Capacity
The present research covers the effect of adding an extra water-cooled condenser in series with the main vapor compression refrigeration system as a heat sink source for system sub-cooling. An experimental laboratory study has been done on a split unit air conditioner with a (24000 Btu/hr) nominal...
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| Format: | Article |
| Language: | Arabic |
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Mustansiriyah University/College of Engineering
2009-03-01
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| Series: | Journal of Engineering and Sustainable Development |
| Subjects: | |
| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1529 |
| _version_ | 1797984981938601984 |
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| author | Ghanim K. Abdul Sada M. N. Hamid Arkan F. Said |
| author_facet | Ghanim K. Abdul Sada M. N. Hamid Arkan F. Said |
| author_sort | Ghanim K. Abdul Sada |
| collection | DOAJ |
| description |
The present research covers the effect of adding an extra water-cooled condenser in series with the main vapor compression refrigeration system as a heat sink source for system sub-cooling. An experimental laboratory study has been done on a split unit air conditioner with a (24000 Btu/hr) nominal capacity, taking into consideration the effect of outdoor ambient temperature and cooling load. A high accuracy fully instrumented experimental rig interfaced with a computer has been constructed, specially designed for refrigerant R22, using a capillary tube with a size chosen according to ASHRAE to control the refrigerant mass flow rate. The extra refrigerant sub-cooling temperature difference was between TSC= 5 oC and 10oC, this value was chosen in order to not exceed the limits of the original system sub-cooling. The experimental results show that there is an increase in the system capacity by +1.37% to +7.065% when TSC= 5 oC, for ambient temperature between Tamb=30 oC and 46oC, and +4.1% to +14.13% when TSC= 10oC for the same previous Tamb. The power consumed per ton of refrigeration shows a decrease by -0.948% to -3.417% for TSC= 5oC, and -2.84% to -7.745% for TSC= 10 oC for the same ambient temperature previously mentioned......
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| first_indexed | 2024-04-11T07:11:31Z |
| format | Article |
| id | doaj.art-ad2c7f89005e42b2b91c3b7a46e08231 |
| institution | Directory Open Access Journal |
| issn | 2520-0917 2520-0925 |
| language | Arabic |
| last_indexed | 2024-04-11T07:11:31Z |
| publishDate | 2009-03-01 |
| publisher | Mustansiriyah University/College of Engineering |
| record_format | Article |
| series | Journal of Engineering and Sustainable Development |
| spelling | doaj.art-ad2c7f89005e42b2b91c3b7a46e082312022-12-22T04:38:12ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252009-03-01131The Effect of Increasing Sub-Cooling on Air-Cooled A/C System's CapacityGhanim K. Abdul Sada0M. N. Hamid1Arkan F. Said2Mechanical Engineering Department, Al-Mustansiriyah University , Baghdad, IraqMechanical Engineering Department, Al-Mustansiriyah University , Baghdad, IraqPower Production Office, Ministry of Electricity, Baghdad, Iraq The present research covers the effect of adding an extra water-cooled condenser in series with the main vapor compression refrigeration system as a heat sink source for system sub-cooling. An experimental laboratory study has been done on a split unit air conditioner with a (24000 Btu/hr) nominal capacity, taking into consideration the effect of outdoor ambient temperature and cooling load. A high accuracy fully instrumented experimental rig interfaced with a computer has been constructed, specially designed for refrigerant R22, using a capillary tube with a size chosen according to ASHRAE to control the refrigerant mass flow rate. The extra refrigerant sub-cooling temperature difference was between TSC= 5 oC and 10oC, this value was chosen in order to not exceed the limits of the original system sub-cooling. The experimental results show that there is an increase in the system capacity by +1.37% to +7.065% when TSC= 5 oC, for ambient temperature between Tamb=30 oC and 46oC, and +4.1% to +14.13% when TSC= 10oC for the same previous Tamb. The power consumed per ton of refrigeration shows a decrease by -0.948% to -3.417% for TSC= 5oC, and -2.84% to -7.745% for TSC= 10 oC for the same ambient temperature previously mentioned...... https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1529. |
| spellingShingle | Ghanim K. Abdul Sada M. N. Hamid Arkan F. Said The Effect of Increasing Sub-Cooling on Air-Cooled A/C System's Capacity Journal of Engineering and Sustainable Development . |
| title | The Effect of Increasing Sub-Cooling on Air-Cooled A/C System's Capacity |
| title_full | The Effect of Increasing Sub-Cooling on Air-Cooled A/C System's Capacity |
| title_fullStr | The Effect of Increasing Sub-Cooling on Air-Cooled A/C System's Capacity |
| title_full_unstemmed | The Effect of Increasing Sub-Cooling on Air-Cooled A/C System's Capacity |
| title_short | The Effect of Increasing Sub-Cooling on Air-Cooled A/C System's Capacity |
| title_sort | effect of increasing sub cooling on air cooled a c system s capacity |
| topic | . |
| url | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1529 |
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