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Solar
Oven Development and Testing Project
The
Florida Solar Energy Center conducted a research project
on low-cost panel type solar ovens for the Dorothy Ann
Foundation on behalf of Solar Household Energy, Inc. The
overall purpose of the research project was to attempt
to improve the performance, reliability and cost-effectiveness
of low-cost solar cookers for use in developing nations.
Many of the activities and documented results conducted
to date (March 2002) under this project are presented
below.
A.
Listed below are various reports that have been developed
for this project.
Solar
Cooker Reflector Optical Evaluation and Design Evolution
(PDF Document - 625KB. This report pertains to an optical
ray trace analysis of a panel type solar cooker reflector.)
FSEC
Solar Cooker Design: Optical Ray Trace Analysis
(PDF Document - 670KB. This report pertains to an optical
ray trace analysis of a parabolic type solar cooker reflector.)
An
Analysis of Greenhouse Cookpot Design Considerations For
Low-Cost Solar Cookers (Web site)
Investigation
of Reflective Materials for the Solar Cooker (PDF
document - 99KB)
Investigation
of Polycarbonate as a Suitable "Greenhouse"
Material for the Solar Cooker (PDF document - 671KB)
Final
Report: Solar Oven Development and Testing (PDF document
- 313KB)
From
the Final Report: Test Results Only (PDF document
- 150KB)
From
the Final Report: Test Plots Only (PDF Document -
137KB)
B.
Pictures - FSEC Testing (Click on picture to enlarge)
C.
Pictures - Cooker Construction (Click on picture to enlarge)
D.
Pictures - Prototype Development (Click on picture to
enlarge)
Listed
below are numerous pictures taken during the solar cooker
prototype development.
E.
Testing
FSEC
staff will be conducting tests in the next few weeks to
determine the performance and feasibility of using cooking
pots that incorporate a selective solar coating material.
The selective coated pots will be tested side by side
with pots coated with standard flat black paint.
Why
selective solar coating? In
order to reduce losses due to heat emission selective
coatings reduce radiation heat losses. This makes it possible
to absorb and transform a large part of the short-wave
solar radiation into heat, and, simultaneously, the emission
of the long-wave heat radiation from the absorber (coated
black pot) itself is significantly reduced.
F.
Cookpot Drawings
Listed
below are a set of draft drawings for the solar cooker's
Greenhouse/Cookpot (also referred to as the HotPot).
Section
through greenhouse and cookpot
Greenhouse
pot cover and greenhouse pot (without top)
Alternate
Lid Design
G.
Solar cooker panel manufacturing information
Listed
below are drawings and a manufacturing information document
for the construction of the solar cooker panel prototype.
Drawings and instruction documents are in PDF format.
Manufacturing
Information
Drawing
A
Drawing
B
H.
For further information on solar cookers, please refer
to the links listed below.
http://solarcooking.org/
Solar Cookers International (SCI) is a non-governmental
organization which has become an international institute
on solar cooking since its founding in 1988. This is the
premier site for information on solar cookers.
http://www.she-inc.org/
Solar Household Energy (SHE) was incorporated in 1998
to identify and support promising entrepreneurs in areas
of the world with adequate sunshine. First, SHE has the
experience and expertise to provide in-country guidance
on training in food preparation techniques. This requires
the formation of local instructors to teach solar cooking
and to conduct consumer support programs. Second, SHE
conducts research on developments in passive solar technology.
This is essential if SHE is to give entrepreneurs the
best possible advice on equipment selection.
I.
Here's the reality of why solar cooker are needed. (Click
on picture to enlarge)
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