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| Section | Objectives |
|---|---|
| Energy Audits and Management | - Energy audit levels and procedures - Data collection and analysis methods - Energy management planning |
| Lighting Systems | - Lighting efficiency improvement strategies - Lighting technologies and controls |
| Electrical Systems | - Electrical distribution systems - Motors and drives efficiency - Power factor correction |
| Energy Accounting and Economics | - Energy cost analysis and tariff structures - Energy budgeting and benchmarking - Life-cycle cost analysis and financial evaluation |
| Measurement and Verification | - M&V principles and protocols - Energy savings calculation methods |
| Mechanical and Thermal Systems | - Compressed air systems - HVAC systems and optimization - Boilers, steam systems, and thermal distribution |
| Renewable Energy and Sustainability | - Renewable energy integration - Sustainable energy management practices |
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NEW QUESTION # 51
Which of the following statements regarding refrigerants is NOT correct?
5ELECT THE CORRECT ANSWER
Answer: A
Explanation:
Understanding the environmental impacts of various refrigerants is crucial for energy managers. Let's analyze each statement:en.wikipedia.org A). R-407C is a blended Hydro Fluoro Carbon or near Azeotropic mixture, and can be used as a replacement for R-22 in commercial applications:
This statement is correct. R-407C is a blend of HFCs designed to replace R-22 in air conditioning systems.
B). R-11 and R-12 are Chloro Fluoro Carbons with significant ozone depleting potential:
This is correct. R-11 and R-12 are CFCs known for their high ozone depletion potential.
C). R-1234yf is a Hydro Fluoro Olefin with zero ozone depleting potential, and little global warming potential:
Correct. R-1234yf is an HFO with negligible ozone depletion and low global warming potential.
D). R-22 is a Hydro Chloro Carbon with significant ozone depleting potential and significant global warming impact:
This statement is incorrect. R-22 is a Hydrochlorofluorocarbon (HCFC), not a Hydro Chloro Carbon. While it does have ozone-depleting potential, its global warming potential is considered moderate, not significant.
E). R-32 and R-134a are Hydro Fluoro Carbons with zero ozone depleting potential, and significant global warming impact:
This is correct. Both R-32 and R-134a are HFCs with no ozone depletion potential but have considerable global warming potential.
Conclusion:
The incorrect statement is D. R-22 is a Hydro Chloro Carbon with significant ozone depleting potential and significant global warming impact. Therefore, the correct answer is D.
NEW QUESTION # 52
A facility replaces a natural gas heating system rated at 10,000 kJ/h and 80% efficiency with an electric heat pump rated at 10,000 kJ/h and a coefficient of performance (COP) of 2.3. Will this project also reduce the annual energy utilization index (EUI) for the facility?
Answer: A
Explanation:
The Energy Utilization Index (EUI) is measured as total energy consumption per unit area.
Step 1: Compare Energy Inputs for Both Systems
* Existing Natural Gas System:
* Heating output: 10,000 kJ/h
* Efficiency: 80%
* Required input energy
NEW QUESTION # 53
Which of the following is NOT a typical benefit of performance contracting from the building owner's perspective?
Answer: C
NEW QUESTION # 54
In an ammonia-water absorption chiller, what material is the refrigerant?
Answer: D
NEW QUESTION # 55
How can commissioning reduce the life-cycle cost to owners and operators?
Answer: E
NEW QUESTION # 56
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