September 20, 2019   |   by admin

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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The detailed but simple design is described and illustrated inSect. A prototype design of the stratified, downdraft gasifier design has been developed. Obviously, it is desirable to use these widely available biomass residues.

FEMA Gasifier

It is an emergency unit, and should be used as nothing more. As the wood gas burns, the products of combustion are carbon dioxide CO2 gasifiet water vapor H2O.

This means that combustion should be isolated to smaller region for higher peak temperatures i. For prolonged idling, a hand-operated shaker has been included in the design. I am confident you have some insightful knowledge but this sounds a tad bit melodramatic to prove a point.

A cleaner gas producer. In these twin tasks lie its advantages and its difficulties. The uppermost zone contains unreacted fuel through which air and oxygen enter. It should be acknowledged that there are alternate technologies such as methane production or use of alcohol fuels for keeping internal combustion engines in operation during a prolonged petroleum crisis; the wood gasifier unit described in this report represents only one solution to the problem.

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.

However, petroleum shortages during World War II led to widespread gas generator applications in the transportation industries of Western Europe.

The purpose of this design is to get engines running quickly for essential functions when only biomass is available as fuel. Until the early ‘s, wood gasifiers all over the world including the World War II designs operated on the principle that both the fuel hopper and the combustion unit be airtight; the hopper was sealed with a top or lid that bad to be opened every time wood was added.


All internal combustion engines actually run on vapor, not liquid. All of these solid fuels are composed primarily of carbon with varying amounts of hydrogen, oxygen, and impurities, such as sulphur, ash, and moisture. I consider the primary purpose of this forum as a resource for education, and I’m trying to encourage the reader to take the claim seriously. Stationary engines can also be fueled by wood gasifiers to run electric generators, pumps, and industrial equipment.

An important issue in the design of the stratified, downdraft gasifier is the prevention of fuel bridging and channeling. Once I get a chance i will try to make a table, showing the energy potential compared to bio fuels per acre Books with such information are listed in the Reference Section see, for example, ReedVol.

In a sense, gasification is a form of incomplete combustion; heat from the burning solid fuel creates gases which are unable to burn completely, due to insufficient amounts of oxygen from the available supply of air. Solar Dehydrator Plans – Combo Package download. You can use this to generate biochar as an added benefit. I have to disagree with you on one point and that is whether this model is a proven design.

Below is an example: A schematic diagram of the stratified, downdraft gasifier is shown in Fig. While it can do reasonably well with very dry fuel of a very regular size, it will make a lot more tar than the Imbert under all conditions. Feka simpler filtering system. If you google “fema gasifier” there will be several documents that should pop up. As the charcoal reacts with the combustion gases, it eventually reaches a very low density and breaks up into a dust containing all of the ash as well as a percentage of the original carbon.

Bats – your most effective insect control. Except for the technology of producing alternate fuels, such as methane or alcohol, the only solution for operating existing internal combustion engines, when oil and petroleum products are not available, has been these simple, inexpensive gasifier units.


However, all enthusiasts I know of who use gasification on a regular basis and gawifier started with a FEMA unit have moved on. The same chemical laws which govern combustion processes also apply to gasification. This includes Wayne Keith whose work Ffema consider to be extraordinary.

In fact, many people can recall a widespread use of wood gas generators during World War II, when petroleum products were not available for the civilian gaxifier in many countries. If you research other forums frequented by those with experience such as driveonwood. My line of reasoning is well supported by those femq experience, and I encourage all readers to investigate other forums on this topic including driveonwood.

Also, I express some skepticism that any filtration system will catch all the tar. This report attempts to preserve the knowledge about wood gasification as put into practical use during World War II. No concerns of the fire climbing up through the wood hopper due to the wood hopper being a sealed oxygen free fuel holding vessel. The first question many people ask about gasifiers is, ‘Where does the combustible gas come from?

Imbert gasifier vs FEMA gasifier

Personally, I find the videos rather interesting and chose not to marginalize the author’s efforts. Section 3 contains information on operating, maintaining, and trouble-shooting your wood gas generator; also included are some very important guidelines on safety when using your gasifier system. So, yeah, I’m being a tad melodramatic.

One design also took care to insulate the fire tube. A prototype gasifier unit was fabricated from these instructions. However, this report is concerned with the operation of four-cylinder gasoline engines rated from 10 to horsepower.

A proven design concept that works very well and is stable if it’s set up correctly. Detailed, step-by-step procedures are presented in this report for constructing a simplified version of the World War II, Imbert wood gas generator. Both the Imbert gasifiers and the stratified concept have a provision for shaking the grate; when they are used to power vehicles, they are automatically shaken by the vehicle’s motion.