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Devise Simplified Equation to Calculate the Percentage of Heat Loss with Exhaust Gases, and to Calculate the Coefficient of the Overall Efficiency of the Boiler that Burns Heavy Fuel Oil

Salah Salem Ali
Efficiency And Test Senior Engineer, Al-HISWA Thermal Power Station -Aden
Abstract—This paper had come as a result of practical demand that is finding simple and quick solution formula, with great accuracy to count the heat loss with exhaust gases (q2) in the boiler, and also count the total efficiency (ηg) of the boiler, so that it to be facilitated the specialist researcher to find out (ηg) immediately without going to the long equations. The research methods depended on reducing from the unknown values, and on reducing the modulus basis of nearest fixed values. The main characteristic of the extracted equation to find out the heat loss with exhaust gases (q2) is that it has 3 unknown values and one constant only. The extracted equation had been tested and compare its results with the reference test after installation the boiler of AL-HISWA POWER STATION by the manufacturing authority by hand account method, or and also with the tests after the over haul maintenance which had been done by computer program. And the comparison results were excellent, so that the error rate in finding out q2 is (-1.91 % max only one time, and maximum error rate of finding out (ηg) is (-0.1%), and sometimes the error for q2 & ηg was zero.

Index Terms—boiler, efficiency, heat, losses, gases, air

Cite: Salah Salem Ali, "Devise Simplified Equation to Calculate the Percentage of Heat Loss with Exhaust Gases, and to Calculate the Coefficient of the Overall Efficiency of the Boiler that Burns Heavy Fuel Oil," Jounal of Automation and Control Engineering, Vol. 2, No. 2, pp. 124-128, June, 2014. doi: 10.12720/joace.2.2.124-128
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