Dear All,
I have a question in modelling the lighting power density for high-rise residential development. Please see below extract from CIR#1712:
""Dwelling units are excluded from the allowable lighting power density. For EA credit 1, the exception listed in Table G3.1.6 states that lighting in multifamily guest rooms which are connected via receptacles and are not shown on the building plans should be modeled identically in the Baseline building and Proposed building simulations, but should be excluded (in post-processing) when calculating the Baseline building performance and Proposed building performance.""
Does it mean:
1) the LPD for both baseline and design shall be identical, and equal to 0.7W/sf.
2) The light consumption shall be ignored when calculating the energy saving. That is, the lighting power only consider as a heat source and reflect in cooling loading.
PAWAN DAHIWAL
10 thumbs up
January 15, 2013 - 5:26 am
second one...
to claim saving refer energy star high rise simulation guidelines
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
January 15, 2013 - 9:36 am
Here is the link to the simulation guidance for residential lighting - http://new.usgbc.org/resources/energy-star-multifamily-high-rise-simulat...
Yoyo Shek
Allied Environmental Consultants Limited4 thumbs up
January 17, 2013 - 2:21 am
thank you very much!
So does it mean the process load could be less than 25% of total energy consumption? as long as the model built in accordance with section 3.13.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
January 17, 2013 - 9:39 am
Model the non-regulated process loads as accurately as possible. Basically ignore the 25% issue until you are done. Once you are done if you are under 25% explain your assumptions to justify why you are under.