Podcast
Questions and Answers
What is a consequence of poor Indoor Air Quality (IAQ)?
What is a consequence of poor Indoor Air Quality (IAQ)?
What is the recommended PM level for IAQ?
What is the recommended PM level for IAQ?
What is a key factor in achieving thermal comfort?
What is a key factor in achieving thermal comfort?
What is the purpose of building insulation?
What is the purpose of building insulation?
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What is thermal inertia?
What is thermal inertia?
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Why is air tightness ventilation essential?
Why is air tightness ventilation essential?
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What is the goal of designing for thermal comfort?
What is the goal of designing for thermal comfort?
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What is the Coefficient of Performance (COP) used for?
What is the Coefficient of Performance (COP) used for?
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What is one of the steps to achieve energy efficiency and sustainability goals?
What is one of the steps to achieve energy efficiency and sustainability goals?
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What is the primary focus of Indoor Environment Quality (IEQ)?
What is the primary focus of Indoor Environment Quality (IEQ)?
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What is the recommended sound level in offices?
What is the recommended sound level in offices?
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What is one of the factors to consider in building design for optimum bioclimatic design?
What is one of the factors to consider in building design for optimum bioclimatic design?
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What is the primary goal of visual comfort in building design?
What is the primary goal of visual comfort in building design?
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What is the recommended sound level in the residential sector?
What is the recommended sound level in the residential sector?
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What is one of the guidelines for passive design?
What is one of the guidelines for passive design?
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What is the purpose of submetering devices according to ASHRAE standards?
What is the purpose of submetering devices according to ASHRAE standards?
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What is one of the focuses of the 'Sustainable Sites' category in LEED certification?
What is one of the focuses of the 'Sustainable Sites' category in LEED certification?
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What is the purpose of occupancy sensor control of lighting and HVAC systems?
What is the purpose of occupancy sensor control of lighting and HVAC systems?
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What is included in the 'Water Efficiency' category of LEED certification?
What is included in the 'Water Efficiency' category of LEED certification?
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What is the purpose of ASHRAE standards for energy design guidelines?
What is the purpose of ASHRAE standards for energy design guidelines?
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What is one of the considerations in the 'Location and Transportation' category of LEED certification?
What is one of the considerations in the 'Location and Transportation' category of LEED certification?
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What is one of the benefits of Energy Efficient Design Features?
What is one of the benefits of Energy Efficient Design Features?
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What is the main purpose of Cycle 1 – Simple Box Modeling?
What is the main purpose of Cycle 1 – Simple Box Modeling?
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Which of the following is NOT analyzed in Cycle 1 – Simple Box Modeling?
Which of the following is NOT analyzed in Cycle 1 – Simple Box Modeling?
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In which design phase is Cycle 1 – Simple Box Modeling typically performed?
In which design phase is Cycle 1 – Simple Box Modeling typically performed?
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What is the primary focus of Cycle 3 – Load Reduction Modeling?
What is the primary focus of Cycle 3 – Load Reduction Modeling?
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Which of the following is a strategy for reducing peak loads in Cycle 3 – Load Reduction Modeling?
Which of the following is a strategy for reducing peak loads in Cycle 3 – Load Reduction Modeling?
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When should Cycle 3 – Load Reduction Modeling ideally be completed?
When should Cycle 3 – Load Reduction Modeling ideally be completed?
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What is the primary goal of Cycle 4 – HVAC System Selection Modeling?
What is the primary goal of Cycle 4 – HVAC System Selection Modeling?
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Which cycle focuses on the analysis and refinement of architectural forms?
Which cycle focuses on the analysis and refinement of architectural forms?
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What is the primary goal of conducting an energy audit?
What is the primary goal of conducting an energy audit?
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What is the main focus of the first level of energy auditing?
What is the main focus of the first level of energy auditing?
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What is done at the basic level of energy auditing?
What is done at the basic level of energy auditing?
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What is the purpose of calculating annual consumption of water and electricity?
What is the purpose of calculating annual consumption of water and electricity?
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What is done at the second level of energy auditing?
What is done at the second level of energy auditing?
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What is the purpose of an economical and capital analysis?
What is the purpose of an economical and capital analysis?
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What is one of the steps involved in the standard level of energy auditing?
What is one of the steps involved in the standard level of energy auditing?
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What is the purpose of prioritizing conservation initiatives?
What is the purpose of prioritizing conservation initiatives?
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Study Notes
Achieving Energy Efficiency and Sustainability
- Setting up energy policy, educating staff, and conducting walk-round listings and exhibitions are steps to achieve energy efficiency and sustainability goals.
Energy Efficiency in Building Design
- Optimum bioclimatic design involves considering insulation, air tightness, ventilation, equipment, and renewable energy sources to enhance energy efficiency.
Indoor Environment Quality (IEQ)
- IEQ is related to human comfort, encompassing four types: visual, acoustic, indoor air quality (IAQ), and thermal comfort.
- Visual comfort requires proper lighting, considering light intensity, color temperature, and glare.
- Acoustic comfort involves minimizing noise produced by transportation and rotating equipment, with recommended sound levels being 55 dB for residential areas and 40-45 dB for offices.
- IAQ comfort involves meeting standards and regulations, with base figures not exceeding 25µg/m3 for PM, 25 ppm for 8-hour CO emission, and 5,000 ppm for 24/7 building CO2 emission.
- Thermal comfort involves considering factors like humidity, air spread, radiation, air temperature, and type of clothing, with the goal of achieving neutral living conditions.
Design Features for Energy Efficiency
- Energy-efficient design features include:
- Windows sizing, placement, and specification
- Insulation, amount, and placement in roofs
- Cooling equipment efficiency
- Demand control ventilation through CO2 sensors or occupancy sensors
- Variable Air Volume (VAV)
- Duct insulation and airtightness
- High-efficiency motors
- Occupancy sensor control of lighting and HVAC systems through Building Automation Systems (BAS)
- Optimal start/stop for HVAC systems
- Cooling equipment optimization and lighting power density
Leadership in Energy & Environmental Design (LEED)
- LEED is a certification that incorporates various codes and standards, requiring considerations such as:
- Integrative processes
- Location and transportation
- Sustainable sites
- Water efficiency
- IAQ, daylight optimization, glare control, and local material selection
Design Modeling Cycles
- Cycle 1 (Simple Box Modeling): Orientation-neutral model, defining design characteristics that impact building performance, including site conditions, massing, building envelope, lighting, thermal comfort, plug and process loads, and program and operational parameters.
- Cycle 2 (Conceptual Design Modeling): Analyzing and refining architectural forms to fine-tune building performance, including orientation, natural or mixed mode ventilation, passive solar heating, and daylighting.
- Cycle 3 (Load Reduction Modeling): Reducing heating and cooling loads to enhance Return on Investment (ROI), including strategies like building envelope, lighting, internal equipment loads, outside air, and passive conditioning.
- Cycle 4 (HVAC System Selection Modeling): Evaluating annual energy demand impacts of various system options and their resulting impact on building operating expenses.
Energy Auditing
- Energy auditing progresses through several levels, including:
- Basic level: Comparing references, conducting feasibility studies, and analyzing previous data.
- First level: Selecting specific groups of processes for energy conservation efforts.
- Second level: Conducting a comprehensive and detailed study of energy use and consumption.
- Third level: Conducting an economical and capital analysis to measure the ROI, ensuring energy efficiency measures are financially viable.
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Description
Learn how to set up energy policies, educate staff, and implement design strategies to achieve energy efficiency and sustainability goals in buildings.
