Pass the AEE Energy Management CEM Questions and answers with ExamsMirror

What type of heat transfer is reduced by adding insulation to the inside surface of a wall?

A steam trap with a 6-mm orifice in an 0.8-MPa steam system has failed open. The steam system is pressurized8.760 hours/yr. The steam cost is $15.00 /GJ. Using thetable below, what is the annualcost of the vented steam through the failed steam trap? ignore any condensate return issues.

[The question from the previous image, which was about calculating the annual cost of heat loss through a wall, but had a discrepancy between the calculated cost and the provided answer choices]

What is the uniform series present worth factor (P/A, i%, n) for an annual interest rate of 15% and a lifetime of 20 years?

An office building is illuminated with T8 fluorescent lamps. Which of the following is the best schedule for group relamping (total replacement of all the T8 fluorescent lamps in the building)?

How much fuel is required to heat 50 kg water from 20°C water to 200°C saturated steam? Assume the boiler is 80% efficient (based on the higher-heating value of the fuel).

Calculate the monthly electric bill for a customer that used 400 kW and 75,000 kwh during one month. Use the following declining block structure for a monthly bill:

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How much energy (kJ) is required to heat 2 kg of water from 25°C to 2 kg of water at 100°C? (The specific heat of water (C) is 4.2 kJ/kg-°C. Assume no system losses.)

If the initial design process includes group relamping, how can this reduce the number of lamps required to illuminate a space?

A fully-loaded heat pump unit delivers 36-kW thermal heating with a power draw of 12-kW electric. What is the coefficient of performance (COP) at full load?

At the end of a performance contract, who owns the equipment installed by the project?