WANG Zhucheng, LIANG Hao, XU Kai, et al. Difference in air heaters performance calculation between ASME PTC 4.3—1968 and ASME PTC 4.3—2017[J]. Thermal power generation, 2019, 48(5): 25-30.
WANG Zhucheng, LIANG Hao, XU Kai, et al. Difference in air heaters performance calculation between ASME PTC 4.3—1968 and ASME PTC 4.3—2017[J]. Thermal power generation, 2019, 48(5): 25-30. DOI: 10.19666/j.rlfd.201812228.
The differences of air heaters performance calculation method between ASME PTC 4.3—1968 and ASME PTC 4.3—2017 are discussed
and the difference in calculation and correction of percent air heater leakage
as well as correction of flue gas resistance
are compared in detail. The calculation results of the performance test case show that
the relative deviation of the percent air heater leakage calculated by the two standards is 2.06%
and the relative deviation of the percent air heater leakage corrected by the two standards is 12.73%
and the relative deviation of flue gas resistance corrected by the two standards is 22.91%. If the amount of flue gas in the correction formula is changed to be based on hourly in ASME PTC 4.3—1968
the relative deviation of the percent air heater leakage corrected by the two standards is 2.62%
and the relative deviation of flue gas resistance corrected by the two standards is 1.28%.