indoor gains for passive house

6 posts / 0 new
Last post

Hi,

where can I find the typical indoor gain profiles (appliances, lighting,
equipment) for passive houses?

thanks,

leen

leen peeters's picture
Offline
Joined: 2011-10-02
Reputation: 0

Hi Leen,

Unless they are using particular spec equipment you have to use normal
domestic profiles and load/gain profiles surely. The passive house is just
the fabric and servicing strategy. The occupants, unless they are eco-wise
will be the same normal heavily consuming people in standard houses
probably. Sorry for the cynicism, but come across it all the time.

Regards

Paul

Paul Carey's picture
Offline
Joined: 2011-10-02
Reputation: 0

My bad- it is .6 ACH50

*Jeremiah D. Crossett*

CleanTech Analytics's picture
Joined: 2012-02-09
Reputation: -1

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: 4.63kBTU/(ft?yr) Pressurization Test Result:0.45
ACH50 Specific Primary Energy Demand
(DHW, Heating, Cooling, Auxiliary and Household Electricity):
33.3kBTU/(ft?yr)Specific
Primary Energy Demand
(DHW, Heating and Auxiliary Electricity): 14.4 kBTU/(ft?yr)Specific Primary
Energy Demand
Energy Conservation by Solar Electricity: kBTU/(ft?yr)Heating Load:
4.73BTU/(ft
2hr)Frequency of Overheating: % Specific Useful Cooling Energy Demand:
0.24 kBTU/(ft?yr)Cooling Load: 2.29 BTU/(ft2hr)

*Jeremiah D. Crossett*

CleanTech Analytics's picture
Joined: 2012-02-09
Reputation: -1

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/(ft?yr) Pressurization Test
Result: 0.45 ACH50 Specific Primary Energy Demand
(DHW, Heating, Cooling, Auxiliary and Household Electricity): 33.3
kBTU/(ft?yr) Specific Primary Energy Demand
(DHW, Heating and Auxiliary Electricity): 14.4 kBTU/(ft?yr) Specific
Primary Energy Demand
Energy Conservation by Solar Electricity: kBTU/(ft?yr) Heating Load:
4.73 BTU/(ft2hr) Frequency of Overheating: % Specific Useful Cooling
Energy Demand: 0.24 kBTU/(ft?yr) Cooling Load: 2.29 BTU/(ft2hr)

*Jeremiah D. Crossett*

CleanTech Analytics's picture
Joined: 2012-02-09
Reputation: -1

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 Yates

Chris Yates2's picture
Offline
Joined: 2011-10-02
Reputation: 0