单选题The purpose of designing some waste heat boilers with sinuous fire tubes, is to（）Aincrease exhaust gas velocity through the boilerBreduce accumulations of carbon deposits on the heat transfer surfacesCeliminate exhaust gas pulsations and noiseDincrease the rate of heat transfer to the waterside
单选题
The purpose of designing some waste heat boilers with sinuous fire tubes, is to（）
A
increase exhaust gas velocity through the boiler
B
reduce accumulations of carbon deposits on the heat transfer surfaces
C
eliminate exhaust gas pulsations and noise
D
increase the rate of heat transfer to the waterside
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