IJAIR NAAS Score : 3.99 ,ISSN : 2319-1473
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IJAIR NAAS Score : 3.99 (2016 - 2020)
"Submissions Open For Vol. 15, Issue 1, July - Aug., 2026"
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IJAIR NAAS Score : 3.99 (2016 - 2020)
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IJAIR NAAS Score : 3.99 (2016 - 2020)
"Submissions Open For Vol. 15, Issue 1, July - Aug., 2026"
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IJIRES , IJASM , IJRIES,IJAHVS
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IJAIR NAAS Score : 3.99 (2016 - 2020)
"Submissions Open For Vol. 15, Issue 1, July - Aug., 2026"
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IJAIR NAAS Score : 3.99 (2016 - 2020)
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Simple Iterative Approach to Calculate Wet-Bulb Temperature for Estimating Evaporative Cooling Efficiency
- Abdulrahim M. AL-ISMAILI; Nasser A. Al-AZRI
- This paper presents a detailed iterative approach to the calculation of wet-bulb temperature from dry-bulb temperature and relative humidity at various atmospheric pressures. Such procedure is very useful in different applications including the estimation of evaporative cooling efficiency. This approach can substitute the available empirical regression methods that have validity only over a certain range of input values. The presented approach uses a simple iterative solution that can be run using common software packages such as MS-Excel®. Validation of wet-bulb temperatures from the iterative approach against wet-bulb temperatures provided by the equation of state showed that the iterative approach offers very accurate calculation of the wet-bulb temperatures from dry-bulb temperature and relative humidity at different atmospheric pressures. The maximum mean predictive error, mean absolute predictive error and root mean square error (RMSE) did not exceed -0.023oC, 0.025oC (standard deviation of 0.031oC, n=120) and 0.039oC, respectively. Over the range of -30 to 80oC dry-bulb temperatures and 0 to 80% relative humidity, the presented approach converged to a final value of wet-bulb temperature in a maximum of only 4 iterations.
- Select Volume / Issue:
- Year:
- 2016
- Type of Publication:
- Article
- Keywords:
- Wet bulb Temperature; Evaporative Cooling; Efficiency; Psychrometric Calculations
- Journal:
- IJAIR
- Volume:
- 4
- Number:
- 6
- Pages:
- 1013-1018
- Month:
- May
- ISSN:
- 2319-1473
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