Haubenschild Dairy Farm Energy Production Princeton, Minnesota

1
Haubenschild Dairy Farm Energy ProductionPrinceto
n, Minnesota
Milk Production Crop Production Electrical
Production Future Hydrogen Production Farm
Income Diversification
Haubenschild Farm Energy Production Technologies
Methane Digester To breakdown organic matter in
the absence of oxygen to produce biogas, which
is primarily methane and carbon dioxide with some
hydrogen sulfide.
Engine Generator set Internal combustion engine
with 135 kW 240 VAC electrical generator.
Fuel Cell Uses hydrogen to generate electricity
without combustion. Output is 5 kW at 120 VAC
Sterling Engine External combustion engine with
55 kW 240 VAC generator.
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A fuel cell is similar to a car battery in that
it produces electricity through electrochemical
reactions. A fuel cell produces electricity as
long as the hydrogen fuel source and oxygen
passes through it. The byproduct of this process
is water vapor. The energy resources for
hydrogen can be biogas, natural gas, propane,
methanol, ethanol, and other hydrogen based
liquids or gases. Heat is also produced and can
be utilized for space heating and hot water
needs. Electricity conversion efficiency is
around 25 and up to 80 with the use of the
waste heat. See www.eere.energy.gov/hydrogenandf
uelcells/fuelcells/basics.html for information.
A sterling engine contains a sealed gas system
(similar to refrigeration)
that expands and contracts to move a piston.
The sterling engine uses external heat
exchangers to expand the gas. Another heat
exchanger cools the internal gas and this gas
compression causes the piston to return for the
internal gases to expand again.
Electricity conversion efficiency is around 30
and up to 80 with the use of the waste
heat. See www.sesusa.org for information.

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Energy Production Organic Fertilizer Reduced
Air Emissions
avings
Environment Impact Reduction