Air Infiltration/Permeability

ApacheCalc – Heat loss/gain calculations using CIBSE procedures to determine design heating/cooling loads.
ApacheLoads – Design heating/cooling loads calculations using ASHRAE Heat Balance Method.
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Yellowpeterpan
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Air Infiltration/Permeability

Post by Yellowpeterpan »

SBM VE compliance, Does anybody know how to change the Air infiltration, As i can not find were to change it from 10 to 1
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PCully
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Re: Air Infiltration/Permeability

Post by PCully »

Hi Peter,

For SBEM method then it's done per room, you can enter Air Permeability on the Building Regs tab of Room Data

Phil
IES Worldwide Technical Support
onealex
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Re: Air Infiltration/Permeability

Post by onealex »

I have had a similar problem - I have upgraded a building from IES 2013 to 2014. The infiltration rate under "VE Compliance (UK & Ireland" ApacheSim-compliance was previously located under "Building Data - Set Building & System Data" tab, where you could input your desired infiltration rate. Now there are options of "Side-Lit and Unlit Spaces" and "Top-lit metal clad spaces" although i have manually changed these figures and simulated the infiltration rate is 1.23 m3/(h.m2)?

Can you confirm how to set the infiltration rate in a simple 1-10 m3/h.m2 as previously under IES 2013?
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Terence
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Re: Air Infiltration/Permeability

Post by Terence »

This is a known issue in VE 2014 and it will be addressed in the soon to be released Hotfix 1.

See the 2014 Known Issues Thread in the announcements section of this forum for more.
Terence McMahon
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