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BEAM P
LUS FOR
N
EW
B
UILDINGS
V
ERSION
1.2
E
NERGY
U
SE
(E
U
)
E
U
1 O
PTION
2 A
LTERNATIVE
R
OUTE
: P
ASSIVE
D
ESIGN
Copyright © 2012 BEAM Society Limited. All rights reserved.
Page 98
A
SSESSMENT
The number of credits to be awarded will be determined with reference to
Appendix 8.8 which provides detailed assessment methodologies for all
the above elements. A report shall be prepared and certified by a
suitably qualified professional person which summaries all the calculation
procedures, results and assumptions.
B
ACKGROUND
Passive building design is a common design strategy, as this approach
allows buildings to respond to the local climate; reducing the reliance on
active servicing for human comfort, which in turn reduces energy
consumption and associated carbon dioxide emissions.
The ultimate goal of passive building design is to maintain occupant
comfort whilst completely eliminating the use of mechanical servicing
throughout the operational period. In Hong Kong’s climate it is unlikely
that this ultimate goal can be achieved due to the high ambient
temperatures and humidity from April to October and the use of artificial
lighting during the night. There is however, a large window of
opportunity where significant energy savings can be achieved.
This alternative route allows the practitioner to put greater emphasis on
passive building design. This is of particular relevance to buildings, such
as residential developments, which traditionally incorporate a range of
passive design features.
This alternative route provides the practitioner with a simpler method to
quantify the benefits of passive building design. It is, however, noted
that the aspects under consideration often involve relatively complex
situations. When carrying out the assessment it is encouraged that the
practitioner considers the use of more complex building energy modelling
tools, several of which are available in the market[1].
1 -
Electrical and Mechanical Services Department - Code of Practice for Energy Efficiency of Building Services Installation -
Section A3.4 2012
ASHRAE Standard 90.1-2007 – Energy Standard for Buildings Expect Low Rise Residential Buildings
ASHRAE Standard 90.2-2007 – Energy-Efficient Design of Low-Rise Residential Buildings
ASHRAE Standard 55-2004 – Thermal Environmental Conditions for Human Occupancy.
USGBC - Advanced Energy Modeling for LEED – Technical Manual v1.0 (August 2010 Edition).