Jim Tenhundfeld
  • Cincinnati, OH
  • United States
Share on Facebook Share on Facebook Share

Jim Tenhundfeld's Groups

Jim Tenhundfeld's Discussions

First Law of Themodynamics

Started this discussion. Last reply by Ed Voytovich Aug 9, 2012. 3 Replies

I have been thinking alot about this 1st Law, where energy is neither created or destroyed and i am having difficulty understanding this.After viewing a number of PBS shows about the universe is…Continue

 

Jim Tenhundfeld's Page

Latest Activity

Jim Tenhundfeld replied to Jack Baikoff's discussion Measuring fresh air intake ducted to a return and no way of measuring from outside.
"Field Controls make a damper that goes inside the duct that can be adjusted for the amount of cfm that you want to bring into the return.  The damper opens to the set amount when the A/H engages."
Jan 17, 2013
Jim Tenhundfeld commented on Christopher Morin's blog post Clocking a Gas Meter
"I agree that clocking the gas meter may indicate the proper gas pressure, but a true combusion anlysis measuring the O2, CO & stack temperature and draft pressure will let you know if the the appliance is operating at its highest…"
Jan 10, 2013
Jim Tenhundfeld replied to Curt Kinder's discussion Vampire load suprise - garage door openers
"Maybe you could train her (ha ha ha) to turn on the switch when she leaves & turn it off when she comes back.  Good luck with that. It would not work with my wife, i am sure of that."
Oct 29, 2012
Jim Tenhundfeld replied to Curt Kinder's discussion Vampire load suprise - garage door openers
"In my particular case, the garage door opener is plugged into the overhead light.  WHen i turn off the power to the light at the light switch, the garage door opener will not operate until the light switch is turned back on.  Could you set…"
Oct 29, 2012
Jim Tenhundfeld replied to Tom Walther's discussion Any thoughts on the Aeroseal product?
"Chris, There are 3 Aeroseal contractors in the Gr. Cincinnati area.  The contractors provide a pre and post total duct leakage test to the home owner. I have seen total duct leakage go from 700cfm down to 100cfm in some of their jobs. …"
Aug 23, 2012
Ed Voytovich replied to Jim Tenhundfeld's discussion First Law of Themodynamics
"Jim . . . I would add that plenty of things at the quantum level behave differently than what we are used to observing (and understanding) on the larger scale.   As an example, You might be interested in this video:  …"
Aug 9, 2012
Tom DelConte replied to Jim Tenhundfeld's discussion First Law of Themodynamics
"Jim, on second thought: Uh oh: entangled particles break second law of thermodynamics . The second law of thermo, or no perpetual motion machines, is being revisited. Quantum teleportation of light particles of 89 miles happened this…"
Aug 8, 2012
Tom DelConte replied to Jim Tenhundfeld's discussion First Law of Themodynamics
"Yes, Jim, you are right, we mostly deal with the first law using classical thermo. It's still correct. It's statistical thermo hat deals with quantum states of atoms and particles. String theory and multiple universes are still under…"
Jul 30, 2012
Jim Tenhundfeld posted a discussion

First Law of Themodynamics

I have been thinking alot about this 1st Law, where energy is neither created or destroyed and i am having difficulty understanding this.After viewing a number of PBS shows about the universe is expanding based on Quantam Physics and the discussions of String Theory in which there may be more than one universe, not to mention the discussions of Quarks and Deep Energy which makes up 70% of the univers, DOES THIS LAW STILL MAKE SENSE AND IS IT STILL CORRECT?See More
Jul 30, 2012
Jim Tenhundfeld joined Sean Lintow Sr's group
Thumbnail

Best Practices (Residential)

Best Building, Retrofitting, or even Auditing Practices - what are they, what should change, what needs to find it's way to the dust bin of history?See More
Oct 26, 2011
Jim Tenhundfeld joined Norm Bourassa's group
Thumbnail

Multifamily Buildings

For too long there has been relatively little EE focus on multifamily, but some new programs have recently started. This group gives us a venue to share our experiences on cost effective audit & retrofit strategies and analysis tool needs.See More
Oct 26, 2011

Jim Tenhundfeld just added their location.
(via Member Map)

Oct 24, 2011
Jim Tenhundfeld is now a member of Home Energy Pros
Oct 21, 2011

Profile Information

Company
Cincinnati State Technical & Community College
Professional Certification
CEM

Comment Wall (1 comment)

You need to be a member of Home Energy Pros to add comments!

Join Home Energy Pros

At 1:46pm on October 25, 2011, Diane Chojnowski said…

Hi Jim,

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!

Don't forget to upload your profile photo. 


Thanks!
Diane, HEP Moderator

 
 
 

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Empower Efficiency added a discussion to the group Job Board
Thumbnail

Position Opening: Local Community Outreach Specialist, Energy Efficiency (San Carlos, CA)

Local Community Outreach Specialist, Energy Efficiency (San Carlos, CA) Job Title: Local Community…See More
yesterday
Amber Vignieri posted a blog post

Elevate Energy Mythbusters: Windows & Attics Edition

This blog post is guest written by former staff member Eric Keeley.Great enthusiasm for home energy…See More
yesterday
Glen Gallo replied to Diane Chojnowski's discussion Poll: What is you favorite or most important home performance diagnostic or measurement tool?
"I agree with Ted. If I could bring just one piece of equipment it would be the blower door. It has…"
yesterday
Glen Gallo replied to Shaun 's discussion Commercial duct testing
"If above the ceiling tiles the wall is a finished assembly and there is insulation on or under the…"
yesterday
Tom White's video was featured

Combustion Appliance Zone Testing (CAZ) Made Easy (March 24, 2016)

Combustion Appliance Zone Testing (CAZ) Made Easy (March 24, 2016) -Gauge Fundamentals -Adapting to the new BPI standard -RESNET testing requirements -NFPA testing requirements -Best practices for best results
yesterday
Profile IconLaura Capps and Bret Abrams joined Home Energy Pros
Thursday
Olivia Taylor posted a blog post

5 Key Reasons Why Rooftop Solar Is Popular In The US

The rapid switch from traditional electricity to clean, economical and renewable solar energy is…See More
Thursday
Adam Swain posted a blog post

Top 5 Tips For Hiring A Crawl Space Contractor

A homes crawl space is one of the few places most homeowners try to avoid at all cost, and for good…See More
Wednesday

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service