Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 01-04-2022, 10:43 AM   #11 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: Tampa, FL
Posts: 1,745

Volt, gas only - '12 Chevrolet Volt Premium
90 day: 38.02 mpg (US)

Volt, electric only - '12 Chevrolet Volt Premium
90 day: 132.26 mpg (US)

Yukon Denali Hybrid - '12 GMC Yukon Denali Hybrid
90 day: 21.48 mpg (US)
Thanks: 206
Thanked 420 Times in 302 Posts
I've never heard of it and quite honestly, I'm skeptical if it's true. Utilities are required by state commissions to keep BTU content within a specific range, air would obviously reduce that to illegal levels.

__________________




  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-05-2022, 11:29 AM   #12 (permalink)
Somewhat crazed
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 4,392
Thanks: 533
Thanked 1,197 Times in 1,056 Posts
Quote:
Originally Posted by ksa8907 View Post
I've never heard of it and quite honestly, I'm skeptical if it's true. Utilities are required by state commissions to keep BTU content within a specific range, air would obviously reduce that to illegal levels.
Be skeptical all you want, affects reality not at all. The utilities self cert for compliance, who else has the test equipment?
__________________
casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
  Reply With Quote
Old 01-05-2022, 12:13 PM   #13 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: Tampa, FL
Posts: 1,745

Volt, gas only - '12 Chevrolet Volt Premium
90 day: 38.02 mpg (US)

Volt, electric only - '12 Chevrolet Volt Premium
90 day: 132.26 mpg (US)

Yukon Denali Hybrid - '12 GMC Yukon Denali Hybrid
90 day: 21.48 mpg (US)
Thanks: 206
Thanked 420 Times in 302 Posts
Quote:
Originally Posted by Piotrsko View Post
Be skeptical all you want, affects reality not at all. The utilities self cert for compliance, who else has the test equipment?
I understand your position but being quite familiar with the industry and best practices, I remain skeptical that what you're describing is truly air only.

https://algas-sdi.com/what-is-propan...20applications.

"Propane-air, also called LPG-Air or SNG, is essentially synthetic natural gas that is formed by mixing vaporized propane or LPG with air. Once mixed it forms a homogeneous mixture that can be used as a direct replacement for natural gas in combustion applications."
__________________




  Reply With Quote
Old 02-28-2022, 11:42 PM   #14 (permalink)
EcoModding Lurker
 
Join Date: Oct 2008
Location: florida
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Used parts

assistance:
I do related work for a company that makes natural Gas service trucks. They have a considerable amount of old trucks sitting around. They repurpose the tanks to the newer trucks. You could find a manufacturer locally and see if they have the part you need.
  Reply With Quote
Old 03-03-2022, 04:08 AM   #15 (permalink)
Master EcoModder
 
Join Date: May 2019
Location: California
Posts: 513

2020 - '08 Chevy Tahoe H
Last 3: 18.4 mpg (US)

2021 - '08 Chevy Tahoe H
90 day: 17.08 mpg (US)

2022 - '08 chevy Tahoe LT
Last 3: 14.38 mpg (US)

2023 - '08 Chevy Tahoe
Last 3: 22.61 mpg (US)

2024 - '08 Chevy Tahoe
90 day: 22.35 mpg (US)
Thanks: 2
Thanked 105 Times in 96 Posts
Quote:
Originally Posted by assistance View Post
thinking of buying a $250 dollar scuba compressor (4500psi) on amazon to compress CNG for cars.

The CNG stations charge 1.60 / GGE, and homefill would be 30 cents per GGE.

The plan would be to have a flash back arrester on the intake to the compressor to prevent any accidents from going back into the main line.

Might also have a check valve to make sure the gas only goes one way.

It would appear impossible to have a flashback arrestor on the tank line due to 4500psi.

I havent been able to source cng service nozzles, i found fill ones but not the service handles like at the station, so i will be using a diy connector system that is rated for 4500psi, probably ball valves instead.

What u think of the plan?
dude it's going to take a LONG time to fill using a home gas pipe it's better to just use the station they use High pressure gas lines

the house pipe is 10psi that is at the tap

after the meter & regulator it's down to 1psi 7-10 hours fill time... if you had 10 psi at the stove the flame would be 10x bigger

source: talked to the gas man before

Last edited by Tahoe_Hybrid; 03-03-2022 at 04:20 AM..
  Reply With Quote
Old 03-03-2022, 10:49 PM   #16 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: Tampa, FL
Posts: 1,745

Volt, gas only - '12 Chevrolet Volt Premium
90 day: 38.02 mpg (US)

Volt, electric only - '12 Chevrolet Volt Premium
90 day: 132.26 mpg (US)

Yukon Denali Hybrid - '12 GMC Yukon Denali Hybrid
90 day: 21.48 mpg (US)
Thanks: 206
Thanked 420 Times in 302 Posts
Quote:
Originally Posted by Tahoe_Hybrid View Post
dude it's going to take a LONG time to fill using a home gas pipe it's better to just use the station they use High pressure gas lines

the house pipe is 10psi that is at the tap

after the meter & regulator it's down to 1psi 7-10 hours fill time... if you had 10 psi at the stove the flame would be 10x bigger

source: talked to the gas man before
Lol, I am the gas man.

Residential delivery pressure is generally 0.25psig. 10psig on a house line would blow up the 2# regs that are built into most appliances and any pilot would be extinguished and blowing gas... and then kaboom goes the neighborhood.

If it's a recent gas line installation, it's probably 1/2 mdpe. I don't recall what the maximum throughput is but it would also depend on your distance from the main. In any case, residential meters will not pass more than about 500scfh.

To the OP, again, the cost to make a reliable and safe compressor will not be economically viable.
__________________




  Reply With Quote
Old 03-04-2022, 01:31 AM   #17 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,891
Thanks: 0
Thanked 1,688 Times in 1,506 Posts
CNG has a much higher pressure than bottled propane, so it makes me less willing to try any makeshift for CNG handling.

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com