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AEE Energy Management CEM Question # 12 Topic 2 Discussion

CEM Exam Topic 2 Question 12 Discussion:
Question #: 12
Topic #: 2

Using the natural gas combustion efficiency tables in your workbook, find the combustion efficiency (based on higher-heating value) of a natural-gas-fired boiler if the excess air level is measured at 31.9% and the stack temperature rise is 187.8°C.


A.

76%


B.

78%


C.

80%


D.

82%


E.

84%


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