GREEN BUILDING FACILITATOR SERVICES
GEís key personnel is a registered green building facilitator by the Malaysia GreenBuildingIndex Sdn. Bhd. Upon the launching of GBI tools, providing consultancy on green building design. To facilitate application for the GBI certification is one of our services to our prestige clients.
Green Building Rating Systems
Introduction to Green Building Index
The GBI rating system is an environmental rating tool for buildings, which the tool is developed by Pertubuhan Akitek Malaysia (PAM) and the Association of Consulting Engineers Malaysia (ACEM). It is a profession driven initiative to lead the Malaysian property sector towards becoming more environmentally friendly. The GBI is structured specifically for the Malaysian tropical weather, environmental and developmental context, cultural and social needs.
GBI is intended to promote sustainability in the built environment and raise awareness amongst Developers, Architects, Engineers, Planners, Designers, Contractors and the Public about environmental issues. The rating tool provides opportunities for developers to design and construct green, sustainable buildings that can provide energy savings, water savings, a healthier indoor environment and sustainable site planning and management.
A) Assessment Criteria
Buildings are awarded the GBI Malaysia rating (version 1) based on six key criteria:
o Energy Efficiency
o Indoor Environmental Quality
o Sustainable Site Planning and Management
o Materials and Resources
o Water Efficiency
Under the GBI assessment framework, points will be awarded for achieving and incorporating environment friendly features over and above current industry practice.
B) Accreditation Process
The accreditation process involves an assessment at design stage and the award of a provisional GBI certificate if the criteria are achieved. Verification and assessment leading to the award of the final GBI certificate is undertaken one year after the building is completed or earlier if the building has at least 50% occupancy. Buildings will need to be re-assessed every three years in order to maintain their GBI rating to ensure that buildings are well maintained. Buildings are awarded GBI ratings depending on the scores achieved as follows:
Point GBI Rating
o 86 and above Platinum
o 76 to 85 Gold
o 66 to 75 Silver
o 50 to 65 Certified
The role of this facilitator is to support and encourage the design integration required for GBI rated buildings and streamline the application and certification process. Upon the submission of application form and payment of the requisite fee to Greenbuildingindex Sdn. Bhd., GSB will appoint accredited certifiers to assess the projects. Upon completion of the assessment, the certifierís report will be forwarded to the GBI Accreditation Panel (GBIAP) to register and award the certification.
GE provides wide range of green consultancy. Apart from the basic facilitation scope, we are able to offer the following State-Of-The-Art services to enhance the green building design to a higher accuracy, to identify and improve the building energy efficiency prior to construction.
A) Computational Fluid Dynamics (CFD) Simulation and Analysis
Computational Fluid Dynamics (CFD) is the analysis of systems involving fluid flow, heat transfer and associated phenomena such as radiation, buoyancy, chemical reactions, particles distribution and etcetera by means of computer-based simulation.
In building services, CFD is widely used for Heating, Ventilating and Air-Conditioning (HVAC) system and Performance Based Fire Engineering system. Examples for HVAC system are natural ventilation and large air-conditioning space such as atrium where the buoyancy effect and long distance air distribution is difficult to design base on conventional system. Examples for performance based fire engineering systems are jet fan system and large atrium which acts as smoke reservoir.
Figures below show some CFD simulation result for an Operating Room on the air and room temperature distributions.
B) Building Thermal and Energy Simulation and Analysis
Building energy simulation and analysis is one of the major contributions and requirements for green building design for higher rating. The yearly energy consumption of the green building constitutes the most points for the Green Building Index (GBI) certification scheme.
Thermal modeling is conducted to estimate thermal conditions within internal occupied spaces. The energy simulation and analysis is the initial tool to study on the investment cost versus the savings from the long term operation cost.
Figures below show some modeling and examples for energy simulation and analysis of an educational building.
C) Daylighting and Artificial Lighting Simulation and Analysis
Daylighting and Artificial Ligthing simulation and analysis is one of the major requirements for green building design. Sufficient lighting level at workspace is important for internal environmental quality and productivity. Harvesting daylight helps to reduce the energy consumption on lighting, while daylighting simulation helps to identify the electrical lighting circuiting design.
In Malaysia, daylighting factor of 1 - 3% is good enough for building occupants. Direct sunlight penetration and luminance level above 2,000 lux will cause glare and discomfort to occupants. Daylighting simulation helps to tackle all these problems during design stage prior to construction.
Figures below show some simulations and examples for daylighting and artificial lighting simulation and analysis.
Artificial Lighting Simulation
D) Energy Auditing
Energy Auditing is a very important verification process to ensure the designed and installed systems can deliver as per the design intent and required performance especially for air-conditioning system where air-conditioning system consumes around 60% of the overall energy cost in common buildings. Energy auditing helps to reduce the energy cost especially in reducing the maximum demand. Energy auditing is also carried out to identify areas that are possible in reducing the energy consumption. A good monitoring system ensures long term savings to the clients.
Figures below show some energy profiles and performance of a chiller system for Tropicana City Mall that we had carried out for case study.
E) 3-Dimensional Modeling for M&E Services Coordination
3-dimensional modeling for coordination of M&E services has long been adopted in Oil and Gas industry to minimize clashes of services that cause wastage of materials and time, where the transportation of materials from on-shore to off-shore is very costly.
In building services, besides minimizing wastage of materials and time, due to the higher demand for better aesthetic view, for exposed M&E services in non-ceiling area such as car parking zones, 3-dimensional modeling has gained popularity.
Video below show a 3-D modeling simulation for coordinated M&E services in a car parking area.
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