CHAPTER 7 - ENERGY AND ATMOSPHERE Flashcards
(49 cards)
is a process used to verify that the project’s energy-related systems were installed, calibrated and are performing according to the owner’s project requirements, basis of design and construction documents
ensures that the building owner gets the performance out of
the efficient systems.
COMMISSIONING – EAP1 + EAC1
Benefits of commissioning
-Reduced energy use
-Lower operating costs
-Fewer contractor callbacks
-Better building documentation
-Improved occupant productivity
-Verification that the commissioned systems perform in accordance with the
owner’s project requirements
Benefits of commissioning
Commissioning process activities
-Designate an individual as the commissioning authority (CxA) to lead, review and
oversee the completion of the commissioning process
-The owner’s project requirements (OPR) must be documented
-Develop the basis of design (BOD) to include the OPR
-The CxA must review OPR and BOD to verify that owner’s requirements are
included
-Develop and incorporate commissioning requirements into the construction
documents
-Develop and implement a commissioning plan
-Verify the installation and performance of the systems to be commissioned
-Complete a summery commissioning report
Commissioning process activities
Verify and Document that the following systems are planned,
designed, installed, tested and maintained:
MANDATORY COMMISSIONED SYSTEMS (MEP) – EAP1
HVAC&R systems
Mechanical
Lighting and daylighting controls
Electrical
Domestic hot water systems
Plumbing
Renewable energy systems
Renewable energy systems
The Enhanced Commissioning credit has multiple paths to
compliance:
* Review contractor submittals.
* Verify inclusion of systems manual, occupant training
requirements in construction documents and seasonal
testing.
* Review building operations 10 months after substantial
completion.
* Develop an on-going commissioning plan.
Path 2 (4 points):
* Achieve path 1 AND
* Include procedures in Commissioning plan - AND/OR -
2 – Envelope Commissioning (2 points):
* Follow EAp1’s requirements as they apply to the building
envelope:
ENHANCED COMMISSIONING – EAC1
The Enhanced Commissioning credit has multiple paths to
compliance:
1 – Enhanced Systems Commissioning - Path 1 (3 points):
* Review contractor submittals.
* Verify inclusion of systems manual, occupant training
requirements in construction documents and seasonal
testing.
* Review building operations 10 months after substantial
completion.
* Develop an on-going commissioning plan.
Path 2 (4 points):
* Achieve path 1 AND
* Include procedures in Commissioning plan - AND/OR -
2 – Envelope Commissioning (2 points):
* Follow EAp1’s requirements as they apply to the building
envelope:
ENHANCED COMMISSIONING – EAC1
energy efficiency for the proposed building in order to reduce
environmental and economic impacts associated
with inefficient energy use.
The energy
performance of a building depends on the reduction of
energy demand by the building and the efficiency of the
building systems installed as compared to a baseline.
ENERGY PERFORMANCE – EAP2 + EAC2
determine the improvement in a new building’s performance, it is compared to a baseline (reference building) which meets Appendix G of ASHRAE Standard 90.1-2010
Whole Building Energy Simulation (1-18 points)
include all energy end uses
including lighting, HVAC and domestic hot water and process energy which includes office equipment, computers, elevators, escalators, kitchen cooking and refrigeration, laundry washing and drying machines, lighting that is exempt from the lighting power allowance.
ENERGY MODELS
Various energy
modeling software include
EE4, eQuest, IES and EnergyPlus.
LEED offers three options to achieve the energy
performance related credit/prerequisite:
1 - Whole Building Energy Simulation (1-18 points)
2 - Prescriptive Compliance Path - ASHRAE 50% Advanced Energy Design Guide
3 - Prescriptive Compliance Path - Advanced Buildings Core Performance Guide
Energy savings are calculated based on the amount of________ that a building can reduce as compared to a baseline. During the charrette the owner program
requirements (OPR) are established and the project team must set goals regarding the project’s energy demand and energy savings they can achieve.
energy demand
is an
online tool that allows the project team to set an energy target, and then compare their project’s design energy and cost to a predetermined goal. The target can then be measured against a variety of design strategies.
Environmental Protection Agency’s (EPA) Target Finder
an interactive energy management tool that allows tracking and assessing energy
and water consumption as well as GhG emissions across an entire portfolio of buildings in a secure online environment.
Energy Star Portfolio Manager
set energy saving targets early on in the project and verify their achievement.
Energy goals
a larger facility demands greater amounts of energy and more resources, so the building area should equal exactly what
is needed.
Building size
a building well oriented can benefit from
natural ventilation, solar energy, passive heating and day lighting.
Computer simulated 3D models help designers and architects
predict how the building will perform before it is built and design
accordingly.
Building orientation
insulate the building envelope efficiently against heating and cooling losses.
Building envelope
feedback and monitoring systems help
occupants recognize and reduce the building’s energy demand.
Energy monitoring
Ensure that the HVAC and DHW (domestic hot water) systems are sized properly and operating at their rated efficiency
Building Systems
