Hello,
There are two Paths in ASHRAE 90.1-2010 Table 6.8.1c water chilling packages -Efficiency Requirement, just would like to know what is the different between path A and path B?
Thanks!
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5868 thumbs up
December 20, 2021 - 4:52 pm
It appears as if there is some explanation in Section 6.4.1.2.1. There might be more in the User's Manual.
Jamy Bacchus
Associate PrincipalME Engineers
20 thumbs up
December 20, 2021 - 5:01 pm
The main difference is that Path A has slightly flatter kW/ton efficiencies for full load and part load, whereas Path B has criteria for a worse full load kW/ton but a much lower than Path A part load kW/ton efficiency.
Afogreen Build
www.afogreenbuild.comGreen Building Consultant
219 thumbs up
December 21, 2021 - 7:21 am
Based on https://h-m-g.com/T24/ASHRAE/ASHRAE%20Topics%20Stakeholder%20Meeting%20051010.pdf page 18 of 108, the Path A is intended for constant speed chillers and the Path B is intended for variable speed chillers.
phan vinh
July 4, 2023 - 9:35 pm
Could you reload the link @Afogreen Build. tks u