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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Facilities Management | 8-12% | - Preventive maintenance programs - Monitoring and targeting (M&T) - Building automation systems (BAS) - Operations and maintenance best practices - Commissioning and re-commissioning |
| Topic 2: Energy Auditing | 15-20% | - Baseline establishment - Audit procedures and methodologies - Data collection and analysis - Audit report writing - Types of energy audits (preliminary, detailed, investment-grade) - Metering and measurement equipment |
| Topic 3: Renewable Energy Technologies | 8-12% | - Energy storage technologies - Solar thermal systems - Solar photovoltaic systems - Biomass and bioenergy - Geothermal systems - Wind energy systems |
| Topic 4: Environmental and Regulatory Compliance | 5-10% | - Energy reporting requirements - Sustainability reporting - EPA regulations (Clean Air Act, Clean Water Act) - Carbon footprint calculation - Green building standards (LEED, ENERGY STAR) |
| Topic 5: Building Envelope | 8-12% | - Thermal envelope analysis - Insulation types and R-values - Windows and glazing systems - Air leakage and infiltration - Daylighting and shading |
| Topic 6: Electric Power Systems | 10-15% | - Lighting systems and controls - Power distribution systems - Harmonics and power quality - Power factor correction - Motors and drives - Standby power systems |
| Topic 7: Energy Accounting and Economics | 10-15% | - Life cycle cost analysis (LCCA) - Energy cost accounting and allocation - Financial analysis techniques (ROI, NPV, IRR) - Utility rate structures and tariffs - Energy price forecasting |
| Topic 8: Energy Project Implementation | 8-12% | - Implementation strategies - Project financing models - Project risk management - Measurement and verification (M&V) - Performance contracting (ESPC) - Energy service companies (ESCOs) |
| Topic 9: Heating, Ventilating, and Air Conditioning (HVAC) | 12-18% | - Equipment efficiency ratings - Controls and optimization - HVAC system types and components - Heat transfer principles - Psychrometrics - Load calculations - Indoor air quality |
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NEW QUESTION # 137
If outside air has a temperature of 30°C dry bulb and 20°C wet bulb, what is the dew point temperature?
Answer: D
NEW QUESTION # 138
Natural gas costs $4.80/GJ. How much does it cost to heat 500 liters of water from 18°C to 50°C using a natural gas water heater with an efficiency of 85%? [The efficiency and fuel price are both based on HHV.
The specific heat of water (C) is 4.2 kJ/kg-°C.]
Answer: E
Explanation:
To calculate the cost of heating water using natural gas:
Step 1: Compute Energy Required to Heat the Water
Given:
* Mass of water = 500 L = 500 kg
* Temperature rise (#T) = 50°C - 18°C = 32°C
* Specific heat of water (Cp) = 4.2 kJ/kg-°C
Energy Required (Q)=m×Cp×#T
=500×4.2×32
=67,200 kJ=67.2 MJ
NEW QUESTION # 139
Lighting systems operate with a certain recoverable light loss factor. Control systems with photocell sensor inputs combined with dimming ballasts can be used to regulate dimming levels to maintain a continuous light level in the work space. Which of the following best describes this type of control?
Answer: C
NEW QUESTION # 140
When should commissioning be included in the design and construction of a facility?
Answer: C
Explanation:
1) CEM Definition and Timing of Commissioning
The AEE Certified Energy Manager (CEM) Body of Knowledge aligns with ASHRAE Guideline 0 and states that commissioning is most effective when it begins at the earliest project phase. This includes:
* Development of the Owner's Project Requirements (OPR)
* Early design reviews
* Establishing performance and energy goals
Early inclusion avoids design errors, reduces rework, and ensures energy systems are optimized from the outset.
2) Evaluation of Options
* A. When the planning process begins #
* Correct per CEM: commissioning is a process, not an event.
* B. When the design is finalized #
* Too late to influence major design decisions.
* C. When installation begins #
* Misses design-phase benefits.
* D. When construction is finalized #
* Limits commissioning to startup only.
* E. When the occupancy permit is accepted #
* Post-occupancy is too late for effective commissioning.
NEW QUESTION # 141
If the temperature difference across an external wall is 20°C and the heat flow across the wall is 2.5 Watts/m², calculate the insulation value of the wall (including inside and outside air films)?
Answer: D
NEW QUESTION # 142
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