Corn Stove Carbon Dioxide Emissions

by bobbi 31. March 2008 23:35
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Background Information on Estimates of Corn Stove Carbon Dioxide Emissions

 

The source of this entry is from Chesapeake Climate Action Network.


Driven by a desire to stop global warming, help Maryland grain farmers, and save money on high natural gas bills, a dozen Takoma Park families are using corn-burning stoves to heat their homes. Corn is an amazingly clean fuel, with almost none of the dirty particulates produced by oil or wood-burning stoves. Corn stoves create almost no smoke and only a very faint odor like that of roasted corn, which dissipates almost entirely after drifting 50 feet.


But what about corn's carbon dioxide emissions? Like all plants, corn removes carbon dioxide from the atmosphere as it grows, and then distributes the carbon equally throughout the plant, which consists of one third grain, one third stalk and one third roots. When corn grain is burned, therefore, approximately one third of this carbon is returned to the atmosphere. The un-harvested stalk and roots are returned to the soil and eventually the carbon in these parts of the plant is released (mineralized) to the atmosphere through microbial activity. The rate and amount of carbon mineralized, however, depends on many factors, including type and amount of tillage, soil type, amount of soil organic matter, climate and moisture. Taking these factors into account, and the fact that the farmer who supplies the Takoma Park Corn Burners Co-op uses minimum tillage, we estimated that as high as 10% of the total carbon fixed by the corn plants is sequestered or stored in the soil.


To further determine the carbon dioxide emissions related to the corn burning stoves we calculated the amount of carbon dioxide released from the fossil fuel inputs used in the production, harvest and delivery of the corn, including:
  • · fertilizer and herbicide production
  • · fuel for planting, harvesting, ground preparations and manure spreading
  • · fuel for drying of corn
  • · fuel for transport to Takoma Park
Results of these calculations showed that the corn used for the stoves produced a negative emission of 484 lbs. of carbon dioxide per ton of corn; in other words, almost 500 lbs. of carbon dioxide per ton of corn is stored in the soil and removed from the atmosphere (see CO2 budget table). This negative emission is a direct result of the sustainable practices of the farmer who uses reduced tillage, fertilizes almost entirely with manure, and applies minimal amounts of herbicides and no pesticides.

Fuel Value Calculator

by bobbi 31. March 2008 14:43
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Fuel Value Calculator

This is just a link to an external web site:  http://www.fpl.fs.fed.us/documnts/techline/fuel-value-calculator.pdf

Here's a blurb about why you may want to view it:  The Fuel Value Calculator is a tool that can be used to compare typical unit costs of various fuels.

Thinking About Going Green

by bobbi 18. March 2008 16:39
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"Corn Heat" Google alert - pays off again. 

Today, the Google alert came from the Cattle Network web site and the article explains how heating with Corn should be considered an alternative to heating with traditional means. Here is the URL: http://www.cattlenetwork.com/content.asp?contentid=205869

MCGA: Thinking About Going Green – Look No Further Than Corn Heat

 

DEWITT, MICH. – There is a growing trend in the United States to become more environmentally friendly by going “green.” Michigan’s corn farmers suggest Americans use corn heat as a “green” solution for not only reducing our use of foreign fossil fuels, but also as a way to lower home and business heating costs.

 

Businesses, homeowners, and municipalities can use corn, America’s renewable resource, as their primary heating fuel and make themselves more “green” by using corn heating units. Corn heating units are designed specifically to generate heat from burning corn kernels. Corn heating units are different than wood-burning stoves because they are designed to burn the dry granular fuel. Some units are biomass stoves and can burn other fuels in addition to corn such as pellets, nutshells, small wood chips, and other small grains such as rye, wheat and barley.

 

Corn is an annually renewable fuel source. It is grown across the United States and has been roughly an 11 billion bushel crop for the last three years. By using corn for heating purposes, we can help to decrease our use of fossil fuels and other rapidly depleting energy sources. As oil and other energy sources are being depleted; corn is replenished annually and therefore makes an alternative fuel source that is renewable year after year. “I take great pride in the fact that I grow corn on my farm and am able to utilize its potential as an energy crop to heat not only my home, but also my shop and office,” added Pat Feldpausch, Michigan Corn Growers Association (MCGA) chairman and a corn grower from Fowler.

 

Corn heating systems can be used for many different heating purposes. Corn can take the place of other heating sources that have been used in the past, such as electricity, propane, heating oil, natural gas, or wood. Heating a 2,000 square foot home would require approximately 250 bushels of corn a year. “Corn heating units are very economical and are a cost-effective alternative to heating with propane or electricity, or even wood,” said Chris Schilling, an engineering professor at Saginaw Valley State University. “Even with corn around $5.00 a bushel, it is still cheaper to heat with corn than with electricity or propane.”

 

Not only are corn heating units cost effective, but they are also environmentally-friendly. Since corn heating units are designed to burn under oxidizing conditions, the resulting smoke is nearly odorless and consists largely of carbon dioxide and steam. In addition, they do not emit significant particulate emissions. Unlike the combustion of ordinary fossil fuels, the carbon dioxide produced during corn burning does not add greenhouse gases to the atmosphere.

 

For more information on heating with corn, a list of corn heating unit manufacturers and dealers, and a list of corn sellers specifically for corn heat, visit www.micorn.org/heat.

 

EZBurn Manufacturing
4902 86th Circle
Glencoe , MN , 55336 USA
(952) 232-6079