AEE CEM - 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?
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AI-generated content may be incorrect.What does a manometer measure?
A facility has a monthly peak power demand of 1,000 kW and an average power factor of 80%. The facility pays a demand charge of $7.50/kVA-month. What is the additional cost per month because the power factor is less than 100%?
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AI-generated content may be incorrect.
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AI-generated content may be incorrect.An air-conditioning system at full load is rated at 70-kW (thermal cooling) and has a coefficient of performance (COP) of 4.1. What is the electrical load at full load?
Which problems can be caused by poor power quality?
How can commissioning reduce the life-cycle cost to owners and operators?
A facility has the thermal cooling load profile shown in the table below. The utility rate traffic has an no-peak time-of-use period that begins at 10:00 a.m ends at 7:00 p.m. What chiller capacity (output) is required for a load-leveling operating strategy?
[Question from the previous image, which was about chiller capacity for load leveling, but the table was missing]
For general indoor residential lighting applications, which light source can provide the most appropriate illumination with the highest efficacy?
In a chilled water thermal energy storage system, chilled water is stored at 4°C and used for supply water. Chilled water return is 14°C. Calculate the storage capacity required to hold 50 GJ of thermal cooling. (The specific heat of water (C) is 4.2 kJ/kg-°C. Assume no system losses.)
The set point for the chiller supply water temperature is varied as a function of the thermal demand for space cooling. What do you call this control strategy?
