최신 CEM 무료덤프 - AEE Certified Energy Manager (CEM)
A facility uses 250,000 kWh in a 31-day billing period. The peak demand in the billing period is 1,200 kW.
What is the facility partial load factor?
What is the facility partial load factor?
정답: A
설명: (DumpTOP 회원만 볼 수 있음)
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?
정답: B
Which of the advantages listed below, makes an ice TES system more preferred over a water TES system, when a load shifting strategy is considered?
정답: C
설명: (DumpTOP 회원만 볼 수 있음)
Air is heated from 10°C (dry bulb temperature) and 80% relative humidity to 32°C (dry bulb temperature).
What is the new relative humidity?
What is the new relative humidity?
정답: C
An energy project implemented today saves $10,000 per year for the next 20 years. Using the 5% interest table, determine the total value of savings at the end of the 20th year?
정답: D
What is the purpose of top (or skimming) blowdown in a steam boiler?
정답: D
If installed without ancillary equipment, photovoltaic power cells generate what type of power?
정답: A
What type of heat transfer is reduced by adding insulation to the inside surface of a wall?
정답: A
A piece of equipment costs $250,000 to buy and install. The annual operating cost for the equipment is
$50,000 per year. The equipment will last 15 years. After 15 years, the equipment will have no net salvage value. The annual interest rate is 10%. What is the present value of the life-cycle cost to own and operate the equipment? Use end-of-year annual cash flow analysis.
$50,000 per year. The equipment will last 15 years. After 15 years, the equipment will have no net salvage value. The annual interest rate is 10%. What is the present value of the life-cycle cost to own and operate the equipment? Use end-of-year annual cash flow analysis.
정답: B
How can commissioning reduce the life-cycle cost to owners and operators?
정답: C