[Equest-users] Combined Space Heating and DHW From Single Boiler

[Ömer Moltay]

Yes, but when you specify a DWH loop, DOE calculates the DWH load by 
using mains water temperature from the weather file, etc on an hourly 
basis, right? How can I calculate the DWH load on an hourly basis with a 
HW loop?


but wouldn't the load be dependent on mains water temperatures that are 
variable and that DOE takes from the Weather File as ground temperatures 
when the DHW loop is specified? How can I

3/30/2012 5:57 PM tarihinde, R B yazd?:
> You could model the DHW loop as a hot water loop - and add process 
> load to it which is equal to the dhw load.
> -Rohini
>
> 2012/3/30 Ömer Moltay <omoltay at mimtarch.com <mailto:omoltay at mimtarch.com>>
>
>     Dear All,
>
>     A residential building has a flat station for each dwelling unit,
>     where a single HW loop is branched into a secondary HW loop for
>     space heating and a secondary DWH loop. We are thinking of
>     creating secondary loops for each of the 90 dwelling units, as we
>     believe that this will result in a more energy efficient operation
>     reflecting the operation principle of flat stations.
>
>     Anyway, eQuest keeps telling us that the Primary of a secondary
>     DHW loop has to be a DWH loop as well. How else do you suggest we
>     model this case?
>
>     Thank you,
>
>     Omer Moltay
>     Mimta
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