Domestic hot water
Hi,
Currently, I'm simulating an hotel which has a service hot water system. This
system is based in recovering heat of the superheated gas, which leaves
the compressor of an air cooled chiller, to heat the service hot water.
The following specification is detailed in Appendix G of ASHRAE
90.1-2007: "The service hot-water system in the baseline building design
shall use the same energy source as the corresponding system in the proposed
design and shall confirm with the following conditions..." Then, in item
b. there is the following information: "Where the energy source is
electricity, the heating method shall be electrical resistance."
So, should I model the baseline building with electrical resistance for
DHWDomestic hot water (DHW) is water used for food preparation, cleaning and sanitation and personal hygiene, but not heating. as in the proposed building the energy source is also electricity (consumed
by the chiller) ?
Regards,
Luana Bertoletti
1 Comments
Hi Luana
In the future try posting under the appropriate LEED prerequisite or credit, you will get more traffic that way. Your comment was tagged under EAp2 so that would be the best place. Select LEED Credits, LEED NC 2009, Energy & Atmosphere, and EAp2 Minimum Energy Performance.
Is there a back up system to heat water if the heat recovery system does not have enough output? If so model the baseline system using the same fuel as the back up system uses.
Does Section 6.5.6.2 apply to your situation? If so the heat recovery must be modeled in the Baseline.
Start a new LEED comment thread