Evaluation of low carbon in the repair of ventilation ducts by Ilkka Piittisjärvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176 This project will develop a carbon footprint calculation model that can be used to estimate carbon dioxide emissions from the sealing correction of a building's ventilation ducts with AEROSEAL technology and, alternatively, when the ducts are completely renewed. en-us 2022-03-30 17:09:28 UTC 2025-01-23 10:51:33 UTC hello@padlet.com ILKKA PIITTISJÄRVI ilkkapiittisjarvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121947436 I work in construction and property maintenance as a building technology consultant.


For a long time, the objects of interest have been building automation, the management of building pressure ratios through ventilation, the development of digital building technology for indoor conditions and energy management, and the smooth and intelligent implementation of building projects without major problems.

]]> 2022-03-30 17:13:17 UTC https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121947436 INTRODUCTION ilkkapiittisjarvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121965032 Energy savings can be obtained by repairing and renewing ventilation ducts, and all of this can be verified with an energy calculation.

How?

-Leaks in non-tight ducts are significantly reduced, by sealing it is possible to reach an air leak of up to < 1%

-The ventilation machine's fan energy (electricity) decreases

-The heat and cooling energy used by the ventilation decreases as the air volume decreases.

]]> 2022-03-30 17:22:45 UTC https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121965032 LIFE CYCLE COST ilkkapiittisjarvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121973512 When using AEROSEAL technology, the repair cost is typically 25...30% of the duct renewal investment and the cost of energy savings can be used to obtain electricity 60...70% / y and heating 20...30% / y. So the life cycle cost can be good and less than 10 years.


US research project, repairing ventilation duct sealing and repairs energy consumption effects, 63 properties:

https://www.mncee.org/retrofit-duct-sealing-commercial-institutional-buildings


When ducts are renewed with prefabricated type-approved parts, the life cycle cost can be satisfactory over a 50-year calculation period. This, of course, requires calculation as a basis.


Renewal, of course, has clear advantages in terms of the use and control of ventilation.

]]> 2022-03-30 17:27:25 UTC https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121973512 CARBON FOOTPRINT ilkkapiittisjarvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121985561 In general, when ventilation ducts are repaired by sealing, a fraction of carbon emissions are produced when the ducts are renewed. Why?
 REPAIR BY SEALING:
- only sealant for the manufacture and transport of vinyl acetate polymer
-only contractor's on-site logistics
-only the electrical energy used by the sealing and pressure equipment during the work
-no demolition and waste disposal
 RENEWAL:
-manufacturing site activities
-energy use and materials loss on the construction site
-transport of new and dismantled material waste treatment and disposal]]> 2022-03-30 17:34:08 UTC https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121985561 AEROSEAL-TECHNOLOGY? ilkkapiittisjarvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121987474 In the method, a particulate sealant is sprayed into the ductwork, which only applies to the leaks and closes them.

Vinyl Acetate Polymer. Used in the food industry.

The sealant is non-toxic (the same substance is used, for example, in chewing gum, craft pulp, in special hair and hair sprays)
- the seal withstands duct cleaning

The substance is introduced into the duct system at a certain temperature and compressed air, the method can be used to seal leaks up to 15 mm in diameter.

The system treated with the method withstands a pressure of 2000 Pa and keeps the duct tight for up to 30 years.

Meets fire resistance rating requirements
CLASSIFICATION OF FIRE PERFORMANCE
STANDARD NF EN 13501-1 + A1: 2013]]> 2022-03-30 17:35:09 UTC https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121987474 NEW VENTILATION DUCTS? ilkkapiittisjarvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121988714 2022-03-30 17:35:36 UTC https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121988714 CALCULATION OF CARBON EMISSIONS ilkkapiittisjarvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121991002 The calculation will be based on the Finnish Ministry of the Environment's low-carbon building assessment method (YM 2019) or the next update.


The emission factors come from the national https://co2data.fi/rakentaminen/ emissions database.


The calculation is performed using OneClickCA software. The calculation data will be updated with the software vendor to make the low carbon content of the ventilation ducts as suitable and easy to use as possible.

The GWP effect of the results is expressed in kgCO₂e / m² / a.

]]> 2022-03-30 17:36:46 UTC https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121991002 BUSINESS USE ilkkapiittisjarvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121996511 The calculation will be commercialized in cooperation with IML-Ilmastointimittaus Lind Ltd, a contractor using AEROSEAL technology, and at their work sites.
The calculation service is offered in connection with sealing contracts and as a separate service.

The distribution of the service has been agreed to be carried out by AEROSEAL -contractors in the European market:
https://www.mez-technik.de/

As a further development project, the aim is to simplify computing, for example, to use spreadsheets with a program.]]> 2022-03-30 17:39:39 UTC https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121996511 FUNDING ilkkapiittisjarvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121998307 Funding is needed to pilot the actual site and develop the computation.

The financing application is prepared and submitted to Business Finland:
https://www.businessfinland.fi/en/do-business-with-finland/home
Fin:
https://www.businessfinland.fi/

and the Finnish ELY Center:
https://www.ely-keskus.fi/en/web/ely-en
Fin:
https://www.ely-keskus.fi/fi/]]> 2022-03-30 17:40:35 UTC https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121998307 MORE INFORMATION ilkkapiittisjarvi https://padlet.com/ilkkapiittisjarvi/jpp8hkerelih9176/wish/2121999714  MR Ilkka Piittisjärvi

+358400871171

ilkka.piittisjarvi@gmail.com 

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