[Bldg-sim] indoor gains for passive house
Chris Yates
chris.malcolm.yates at gmail.com
Tue Jul 31 03:36:11 PDT 2012
In SI, the main Passivhaus criteria are:
* 15kWh/(m2.annum) space specific heating energy or 10W/m2 peak
heating load. This does NOT include energy used in hot water,
cooling, fans, pumps and receptacle loads. However, gains from
these loads can offset heating energy
* 120kWh/(m2.annum) primary energy (DOES include Hot water, cooling,
fans, pumps and receptacle loads)
* N50 < 0.6ACH
* + a bunch of stuff on limiting u-values and thermal comfort
In answer to your original question (and depending on how pedantic you
want to be) I can recommend:
* PHPP already has some good default values (I thin)
* The energy star website can be used for computers and peripherals
http://www.eu-energystar.org/en/en_007.shtml
* If you have a copy of the CIBSE TM22 worksheet (let me know if you
don't) you can quickly assess other electrical loads using Nominal
power, utilisation and operational hours in the "SysPlant" tab
* For energy labelled goods you could also try the pdfs available at
http://ec.europa.eu/energy/efficiency/labelling/labelling_en.htm
they contain details of how the energy labels are derived under
standard conditions. Some of the terms will probably be a bit
vague to follow
Cheers
Chris
On 29/07/2012 05:14, CleanTech Analytics wrote:
> Leen,
> I think that the requirement is 15 kBtu/sqft/Y for heating & cooling-
> and .6 ACH50 maximum.
> Possibly you will find the attached spreadsheet useful, as well as the
> values pasted below (these are from a project that meet/exceed the
> standard)
>
> All the best-
>
> Specific Space Heat Demand:
> 4.63 kBTU/(ft²yr)
> Pressurization Test Result:
> 0.45 ACH_50
> Specific Primary Energy Demand
> (DHW, Heating, Cooling, Auxiliary and Household Electricity):
> 33.3 kBTU/(ft²yr)
> Specific Primary Energy Demand
> (DHW, Heating and Auxiliary Electricity):
> 14.4 kBTU/(ft²yr)
> Specific Primary Energy Demand
> Energy Conservation by Solar Electricity:
> kBTU/(ft²yr)
> Heating Load: 4.73 BTU/(ft^2 hr)
> Frequency of Overheating:
> %
> Specific Useful Cooling Energy Demand: 0.24 kBTU/(ft²yr)
> Cooling Load: 2.29 BTU/(ft^2 hr)
>
>
> /Jeremiah D. Crossett/
> /CleanTech Analytics/
> /503-688-8951/
> /www.cleantechanalytics.com/ <http://www.cleantechanalytics.com>
>
>
> *
>
> This document may contain
> valuable information proprietary to CleanTech Analytics
> which is private and confidential. It may not be shared,
> copied, stored or transmitted in any form without the
> prior written consent of CleanTech Analytics
>
> *
>
>
>
> On Sat, Jul 28, 2012 at 9:13 PM, CleanTech Analytics
> <jeremiah at cleantechanalytics.com
> <mailto:jeremiah at cleantechanalytics.com>> wrote:
>
> My bad- it is .6 ACH50
>
>
> /Jeremiah D. Crossett/
> /CleanTech Analytics/
> /503-688-8951 <tel:503-688-8951>/
> /www.cleantechanalytics.com/ <http://www.cleantechanalytics.com>
>
>
> *
>
> This document may
> contain valuable information proprietary to
> CleanTech Analytics which is private and
> confidential. It may not be shared, copied,
> stored or transmitted in any form without the
> prior written consent of CleanTech Analytics
>
> *
>
>
>
> On Sat, Jul 28, 2012 at 9:12 PM, CleanTech Analytics
> <jeremiah at cleantechanalytics.com
> <mailto:jeremiah at cleantechanalytics.com>> wrote:
>
> Leen,
> I think that the requirement is 15 kBtu/sqft/Y for heating &
> cooling- and .06 ACH50 maximum.
> Possibly you will find the attached spreadsheet useful, as
> well as the values pasted below (these are from a project that
> meet/exceed the standard)
>
> All the best-
>
> Specific Space Heat Demand:
> 4.63 kBTU/(ft²yr)
> Pressurization Test Result:
> 0.45 ACH_50
> Specific Primary Energy Demand
> (DHW, Heating, Cooling, Auxiliary and Household Electricity):
> 33.3 kBTU/(ft²yr)
> Specific Primary Energy Demand
> (DHW, Heating and Auxiliary Electricity):
> 14.4 kBTU/(ft²yr)
> Specific Primary Energy Demand
> Energy Conservation by Solar Electricity:
> kBTU/(ft²yr)
> Heating Load: 4.73 BTU/(ft^2 hr)
> Frequency of Overheating:
> %
> Specific Useful Cooling Energy Demand: 0.24 kBTU/(ft²yr)
> Cooling Load: 2.29 BTU/(ft^2 hr)
>
>
>
> /Jeremiah D. Crossett/
> /CleanTech Analytics/
> /503-688-8951 <tel:503-688-8951>/
> /www.cleantechanalytics.com/ <http://www.cleantechanalytics.com>
>
>
> *
>
> This document may contain
> valuable information proprietary to
> CleanTech Analytics which is private and
> confidential. It may not be shared,
> copied, stored or transmitted in any form
> without the prior written consent of
> CleanTech Analytics
>
> *
>
>
>
> On Sat, Jul 28, 2012 at 2:20 PM, leen peeters
> <l.f.r.peeters at gmail.com <mailto:l.f.r.peeters at gmail.com>> wrote:
>
> Hi,
> where can I find the typical indoor gain profiles
> (appliances, lighting, equipment) for passive houses?
> thanks,
> leen
>
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--
Chris Yates C Eng MCIBSE
/Building Physics Consultant/
Tel:+447960731576
Email: chris.malcolm.yates at gmail.com
Skype: christopher.m.yates
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