Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

hydrogen assist

Thread Tools
 
Search this Thread
 
Old Jun 25, 2008 | 08:16 AM
  #1  
THC07's Avatar
Thread Starter
Honda-Tech Member
20 Year Member
 
Joined: Aug 2005
Posts: 2,500
Likes: 1
From: Nor Cal, HillSide
Default hydrogen assist

hello, searched and failed.
Is anyone useing a hydrogen assist on their honda? looking for some pics.
was just about to buy all the crap to make it. Dunno where to put it tho.
Reply
Old Aug 23, 2008 | 03:33 PM
  #2  
kevinm1981's Avatar
Honda-Tech Member
 
Joined: Feb 2002
Posts: 7,446
Likes: 0
From: Mesa, AZ
Default Re: hydrogen assist (THC07)

bump
Reply
Old Aug 23, 2008 | 04:49 PM
  #3  
MadScientistMatt's Avatar
Junior Member
 
Joined: Jun 2008
Posts: 141
Likes: 0
From: Covington, GA, USA
Default Re: hydrogen assist (kevinm1981)

There's a right way and a wrong way to set up a hydrogen assist. The wrong way is to set up a system that steals power from the engine to make the hydrogen on the car, and just toss the hydrogen into the intake manifold without even bothering to find out if your system can deliver enough fuel to have any effect whatsoever. The Water4Gas system falls into this category of blatantly wrong design.

Many of these botched designs supply hydrogen at a rate of 1 liter per minute. When dealing with uncompressed hydrogen, that's 5 grams per hour. Your typical stock Honda motor uses injectors that flow around 22 pounds per hour, and there are four of them. There's no way a tiny 5 gram per hour hydrogen generator can keep up with a fuel system that can pump out twice that weight of gasoline each second.

So, the first thing you need is a system that will deliver more hydrogen... a lot more. Something more like several hundred liters a minute. A generator big enough to make a difference is also going to be too big to be practically mounted on the car - you're looking at something made from a 55 gallon drum instead of a Mason jar, fed kilowatts of power through cables as big as your thumb. So, you'll need to generate the hydrogen off the car and store it; a compressed gas cylinder like what you'd see at welding shops would be the most practical. You'll also need gaseous-fuel injectors and an ECU with multiple independent injector outputs so that it can accurately meter the hydrogen and reduce the amount of gasoline delivered.

Doing this right is likely to be pretty expensive, and probably won't save you any money. It would only be worth it if you wanted to stick it to Big Oil. The absurd and unworkable "HHO" systems that hucksters sell on the Internet aren't even worth it for that.
Reply
Old Aug 23, 2008 | 04:56 PM
  #4  
D16SiHatch's Avatar
Honda-Tech Member
 
Joined: Jun 2007
Posts: 5,314
Likes: 3
From: ohio
Default Re: hydrogen assist (MadScientistMatt)

i like this guy ^ someone who knows what the hell there talking about. maybe this will shut up some of the other people who are so convinced home-made "HHO" generators will net them miraculous mpg increases.
Reply
Old Aug 25, 2008 | 10:49 AM
  #5  
shula's Avatar
 
Joined: Aug 2008
Posts: 2
Likes: 0
From: Clarksville, AR, Johnson
Default

I have one on my 1997 Honda Accord. Went from 22 to 33.8 mpg. The other one on my 1999 Dodge Ram Van not much better because the computer will not adjust for the hydrogen. I got mine from http://www.hydrogenfuelsells.com
Reply
Old Aug 25, 2008 | 11:13 AM
  #6  
1992Si's Avatar
Honda-Tech Member
20 Year Member
 
Joined: Aug 2003
Posts: 4,926
Likes: 8
From: Tolland, CT, USA
Default Re: hydrogen assist (MadScientistMatt)

See it can be done...

BTW I have been building H2 and O2 cell stacks for almost 20 years at work. The one draw back is you need a cheap source of energy to make it work efficently. Our main customer is the US and British Navy for nuclear sub's. We also built the one on the Space Station.

They also don't do well in cold weather, hint water freezes at 32F.
Reply
Old Aug 25, 2008 | 11:30 AM
  #7  
THC07's Avatar
Thread Starter
Honda-Tech Member
20 Year Member
 
Joined: Aug 2005
Posts: 2,500
Likes: 1
From: Nor Cal, HillSide
Default Re: (shula)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shula &raquo;</TD></TR><TR><TD CLASS="quote">I have one on my 1997 Honda Accord. Went from 22 to 33.8 mpg. The other one on my 1999 Dodge Ram Van not much better because the computer will not adjust for the hydrogen. I got mine from http://www.hydrogenfuelsells.com</TD></TR></TABLE>

after research awhile ago, this is not accurate. you had different driving conditions, also light on gas pedal, by no means do those little "assist" bottles do anything. thermo dynamic majors and a few others that i talked to showed me the math and my conclusion was made.
hydrogen assist with the gars and bottles are just plain
Reply
Old Aug 25, 2008 | 11:31 AM
  #8  
MadScientistMatt's Avatar
Junior Member
 
Joined: Jun 2008
Posts: 141
Likes: 0
From: Covington, GA, USA
Default Re: hydrogen assist (THC07)

I've never seen one dyno tested, and it's rare that I've seen one try any sort of rigorous testing for the fuel economy portion either. Given how little of an effect such a thing should have in theory, I'd need a pretty airtight set of test results to convince me the problem wasn't simply an error in measurement. Shula, would you care to post details of just what you did to measure the fuel economy on the Accord?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
94civiccupew/b7
Drag Racing
6
Jun 2, 2014 05:37 AM
Cyphear
Forced Induction
1
Mar 1, 2007 02:56 AM
85
Forced Induction
1
Feb 13, 2007 08:24 PM
Mr. Vapor
Classifieds: Forced Induction
4
Apr 18, 2004 11:34 AM
downpipe
Forced Induction
8
Dec 21, 2001 09:11 AM




All times are GMT -8. The time now is 01:36 AM.