This website is dedicated to the construction of wood gasifiers that can be used to run a gasoline engine with. Woodgas has been around for a long time and it. If you google “fema gasifier” there will be several documents that should pop up. Below is an example. and FEMA EMWE We’rk Unit D . gasifier unit (i.e., a “producer gas” generator, also called a “wood gas” generator) which is capable of.

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I have to disagree with you on one point and that is this model is a proven design. Awesome point glad someone made itthere are going to be a lot of peoples uses and fuel sources that will differ from use to useand there several types of gasifiers as well The gasifier as a whole will run hotter and this means that you have to use materials in the reaction zone that can handle or withstand the hotter core temperatures.

Making a combustible gas from coal and wood began around in Europe. Books with such information are listed in the Reference Section see, for example, ReedVol. New Aquaponics Series from Jack Spirko.

Photographic documentation of the actual assembly of the unit, as well as its operational field test, is included in this report.

You have to use harsh solvents such as gasoline to clean it off and when you stink your house up with the smell of tar and gasoline your spouse will make you give up your gasifier project and dreams or else they will KILL you and bury you in the back yard with it and tell your family that you left the country.

No special fuel shape or pretreatment is necessary; any blocky fuel can be used. This report attempts to preserve the knowledge about wood gasification as put into practical use during World War II. Due to it’s lower temperature range it is a heavy tar producer. A schematic diagram of the stratified, downdraft gasifier is shown in Fig.


The FEMA design is generally suited to introduce wood gasification and many variations of this design do power vehicles without destroying them.

Notice the gap between the matchstick and the luminous flame; this gap contains the wood gas which starts burning only when properly mixed with air which contains oxygen. Charcoal-burning taxis, a related application, were still common in Korea as late as More to the point and my intention, I think it is polite to give credit to the person in the video who constructed a polished prototype and in my opinion presented the design very clearly.

A simpler filtering system. One of the most simple gasifier designs out there. If more information is needed about operating gasifiers on other fuels such as coal, charcoal, peat, sawdust or seaweeda list of relevant literature is contained in the Bibliography at the end of this report.

You can use this to generate biochar as an added benefit. The purpose of a gasifier, then, is to transform solid fuels into gaseous ones and to keep the gas free of harmful constituents. It should be acknowledged that there are alternate technologies such as methane production or use of alcohol fuels for keeping internal combustion engines in gassifier during a prolonged petroleum crisis; the wood gasifier unit described in this report represents only one solution to the problem.

If you google gaxifier gasifier” there will be several documents that should pop up.

Much lower tar emissions due to it’s design. At the bottom of this zone, all of the available oxygen from the air was completely reacted. The open top design ensures uniform access of air to the pyrolysis region. A cleaner gas producer. The problem with this is that an engine powered by such a unit will require a lot of regular maintenance. Most of the volatile components of the fuel are burned in this zone and provide heat for continued pyrolysis reactions.


Imbert gasifier vs FEMA gasifier

However, all enthusiasts I know of who use gasification on a regular basis and who started with a FEMA unit have moved on. The goal of any such mod femq be to increase temperatures in the hearth reduction zone in order to improve ffema cracking. Stationary engines can also be fueled by wood gasifiers to run electric generators, pumps, and industrial equipment.

In diesel engines, the fuel is sprayed into the combustion chamber as fine droplets which burn as they vaporize.

The foremost question about the operation of the stratified, downdraft gasifier concerns char and ash removal. Although I’m still new to working with gasifiers I do have a few feathers under my hat that gave me some basic but solid knowledge on this topic since I’ve acquired some real world “hands on” experience with the construction and the operation of both the Imbert and the FEMA gasifiers plus I’ve read as much as I could on the topic even if some of the technical language was a bit fuzzy to me including watching every video feka there I could find.

The uppermost zone contains unreacted fuel through which air and oxygen enter.

FEMA Gasifier

Your spouse will KILL you when some of it gets on the furnature from your clothes. So, there is some evidence that a few relatively simple modifications to the FEMA can dramatically improve its performance.

Also, I express some skepticism that any filtration system will catch all the tar. While it can do reasonably well with very gasifidr fuel of a very regular size, it will make a lot more tar than the Imbert under all conditions. The same chemical laws which govern combustion processes also apply to gasification.