See all forum discussions about CI-2009 IEQc7.1
 Subscribe to new posts about CI-2009 IEQc7.1 Post a new question aboutCI-2009 IEQc7.1
See LEEDuser’s guidance on CI-2009 IEQc7.1»
FAQs about IEQc7.1 :

ASHRAE-55 comfort criteria ask for space air speed. Is this the same as the supply air volume measured in cubic feet per minute (CFM)?


What should I do about a warehouse space?

How can thermal conditions for areas with metabolic rates outside of 1.0–1.3 be determined? (Per ASHRAE Standard 55-2004 Section 5.2.1.1, Figure 5.2.1.1 can be used for areas with metabolic rates between 1.0 and 1.3).

There are a few spaces in my project that can’t meet these requirements. Can’t I just exclude them?

View answers »

Forum discussion

CI-2009 IEQc7.1:Thermal Comfort—Design

Psychrometric Chart Comfort = 90% comfortable hours

Profile picture for user michael.smithing
Michael Smithing
Director - Green Building Advisory
Colliers International Ltd.
LEEDuser Basic Member
201 thumbs up

Does this credit require 100% comfortable hours (for 90% of the people PMV) or is there some flexibility? Also - any idea what to do if we can't find an EPW file for Lusaka, Zambia?

0
Post a reply

You rely on LEEDuser. Can we rely on you?

LEEDuser is supported by our premium members, not by advertisers.

Go premium for $15.95  »

Sun, 11/25/2012 - 15:11

There is some flexibility, but you should be close to 100%. The reviewers are looking for you to explain clearly that comfort is being addressed in normal operating circumstances. So for example, failing to provide comfortable hours all summer would not be acceptable, but failing to provide comfort when outdoor conditions exceed design criteria would be. DOE - Energy Plus site has weather data http://apps1.eere.energy.gov/buildings/energyplus/cfm/weather_data.cfm If it is not listed, pick something similar and make your case.

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.