New LBNL Resource: Steps to Improving Ventilation in Existing Homes

http://resaveguide.lbl.gov/

Context: This work was done under RESAVE, a California Energy Commission (CEC) Public Interest Energy Research (PIER) Program. The overall goal of this program is to facilitate the reduction of energy and peak power spent in homes to condition air that enters from outdoors. Infiltration, the uncontrolled exchange of air through leaks and penetrations, typically accounts for over one-third of the total space conditioning energy. New homes typically spend the same fraction of energy on mechanical ventilation. This program aims to reduce ventilation and infiltration related peak load and energy costs by 25-50%.

This program will provide important research and technical tools to advance the strategy of "Build Tight, Ventilate Right". This approach combines high-quality building construction (low leakage, low emitting materials, etc.) with optimized ventilation systems to maximize energy efficiency while maintaining acceptable indoor air quality (IAQ). The program will develop new technologies and recommendations for improvements to existing technologies. The involvement of industrial partners in the program will ensure that these technological developments find their way into California homes. The program will leverage best practices and leading-edge building and ventilation technologies from California, the United States, Japan and Europe. A specific goal will be the optimization of hybrid, passive and active ventilation systems to facilitate their adoption in California homes. In addition to technology development, this program will make recommendations for changes to California State Energy Code for buildings (Title 24) together with providing the diagnostic and commissioning tools necessary to ensure code compliance. These tools will also help in market transformation by demonstrating the performance and value of good ventilation systems to consumers, contractors, building managers and other potential decision makers and beneficiaries.

Views: 468

Reply to This

Replies to This Discussion

just wanted to thank you for the information I have downloaded the pdf

New technology will continue to bend the curve on these models. Vermont Energy Investment Corp (VEIC), Northwest Energy Efficiency Alliance (NEEA)  and others are developing these models, with HRVs/ERVs operating at .3 watts/cfm and with 90% ASE efficiencies as the basis for dramatically increased energy efficiency, comfort and IAQ. Additionally, NEEA has commissioned a residential ventilation study that should shed some light on the efficacy of ventilation schemes in various levels of tightness in these homes. I think that this will be one of the most significant conversations with regards to DER, NZE, retrofit and other programs in coming months. 

Washington state is taking commentary on their adoption of new codes, and this subject is the one that is garnering the most attention right now as well. The NEEA study was prematurely referenced in a recent blog, as the study is just getting under way, and "results" were reported already. 

LBL and other organizations studying this issue will be critical to avoiding unintended consequences that often follow new code requirement when the science has not yet caught up with the code. We can learn a lot from Europe, where they went down this road already, and in specific markets they made the same mistakes that we seem determined to make as well. 

RSS

Forum Discussions

When is it too windy to use blower door?

Started by Brandon Walton in General Forum. Last reply by Kent Browning on Friday. 10 Replies

Electro Magnetic Fields (EMF)

Started by Barry L NewDelman in General Forum. Last reply by Arnie Katz on Thursday. 2 Replies

Affordable Housing Funding

Started by SUZETT MOFFITT in General Forum. Last reply by Diane Chojnowski on Wednesday. 4 Replies

Latest Activity

Profile IconEmily Rhea, Spray-on Foam and Keith Flores joined Home Energy Pros
Friday
Kent Browning replied to Brandon Walton's discussion When is it too windy to use blower door?
"I found this post thru a Google search. I was already a member and have posted a few times. I am a…"
Friday
Home Energy Magazine's video was featured

2017 U.S. Department of Energy Race to Zero Student Design Competition

The U.S. Department of Energy (DOE) Race to Zero Student Design Competition (Race to Zero) inspires collegiate students to become the next generation of buil...
Friday
Dave Ransom joined James Sayers's group
Thumbnail

Marketing Energy Efficiency

Sharing ideas, tools and examples of promoting energy efficiency to consumersSee More
Friday

Photos

Loading…
  • Add Photos
  • View All

© 2017   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service