[Equest-users] Calculation of Average efficiency in case of central chiller plant serving to both phase of building

[Vishal Jagdale via Equest-users]

*Hi,*


Our working project has One (1) central chiller plant (4 nos. of chiller +
4 nos. primary & secondary pump + 4 Cooling Tower) which is serving to the
both phase 1 & phase 2 area…whereas currently we are working on the phase2
model.


Hence our question is-*What capacity & efficiency to be consider for
modelling phase2 chillers, pump & cooling tower in E-quest?*


As per the USGBC guidelines for the *treatment of district cooling*, we
need to calculate average efficiency. So can anyone guide us on *how to
calculate the average efficiency? *


However the same guidelines suggest to consider the *default efficiencies*
in case of unavailability of average efficiency.it says COP of 4.4 for the
total cooling plant average efficiency (including cooling towers & primary
pumps).*Can anyone guide us on how to take it (default efficiency) into
account for all the system while modelling in Equest?*



*Regards,*

*Vishal*
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