Experimental investigations on the effect of the spiral helical fins & flow channel routing inside flowing water stream on the heat exchanger performance in tropical environment
The rapid economic growth of the Southeast Asian countries brought proportional stress on the air-conditioning sector. So, Ground Source Heat Exchangers (GSHE) is a cheap and efficient alternative for such air-conditioning units. Thermal performance of GSHE has optimised to determine the influence o...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
Taylor & Francis Group
2022
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/40357/1/Experimental%20investigations%20-%20Copy.pdf http://ir.unimas.my/id/eprint/40357/ https://www.tandfonline.com/doi/abs/10.1080/14484846.2020.1769457?journalCode=tmec20 https://doi.org/10.1080/14484846.2020.1769457 |
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| Summary: | The rapid economic growth of the Southeast Asian countries brought proportional stress on the air-conditioning sector. So, Ground Source Heat Exchangers (GSHE) is a cheap and efficient alternative for such air-conditioning units. Thermal performance of GSHE has optimised to determine the influence of variation in various parameters. The rate of heat transfer varied from 50.15 kW – 215.43 kW at varying mass flow rate 1–3 kg/m3s and 5–6 kg/m3s for hot and cold
water. At a helix angle (i.e. 75o , 820 and 890
), the rate of heat transfer decreases ~29 – 4%. 20-
2%, and 18-3% respectively. With increasing the rpm from 60 to 210, the rate of heat transfer reduced to 200 kW-35 kW, respectively. With the further increase from 210 to 360rpm, the rate of heat transfer reduced to 120–20 kW, respectively. By increasing the length of the circular
base pipe up till 2 m, rate of heat transfers first went up till 250–75 kW and then reduced down to 130–40 kW. With increasing the length further up till 3 m, it first raised till 275–100 kW and then reduced till 150–70 kW. |
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