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FISH DEHYDRATING, ROASTING, SMOKING, FLAVORS AND RECIPES
FISH DEHYDRATING, ROASTING, SMOKING, FLAVORS AND RECIPES
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Solar Drying Technology for Food Preservation, Green and Schwartz, 2001
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field -keywords=Solar+Drying+Technology+for+Food+Preservation&x=8&y=21 =================================\
Solar Drying Equipment: Notes on Three Driers Matthew G. Green Dishna Schwarz http://sleekfreak.ath.cx:81/3wdev/GATE_DL/ENERGY/E015E_02.PDF
(GTZ-GATE), July 2001 Information & Knowledge Management Technical Information ! Energy / Environment (E) " Water / Sanitation (W) " Agriculture (A) " Foodprocessing (F) " Manufacturing (M) This module is available in: ! English (e) " French (f) " German (g) " Spanish (s) " Other(s): ........................... File: e015e_solardryers.pdf / doc
Food losses in the developing world are estimated to be 50% of the fruits and vegetables grown and 25% of harvested food grain (Burden, 1989). Food preservation by drying can reduce wastage of a harvest surplus, allow storage for food shortages, and in some cases facilitate export to high-value markets. This paper presents the characteristics of three solar driers. A 15 US$ tent drier, a 400 US$ box drier, and a 5,000 US$ tunnel drier are discussed. References are given to solar drier vendors and sources leading to numerous other solar drier designs. For an overview of solar drying theory and equipment classification, refer to “Solar Drying Technology for Food
Hohenheim Solar Tunnel Drier: Key Features • 20m² drying area • 3 fans, PV or mains powered • Operation in arid and humid regions • Self regulated airflow and temperature (solar panel type) • One day set up time • Price: US$ 5,250 (+ US$ 250 for PV) • Indirect operation ideal for sensitive products • Air temperature: 30-80°C • Size: 18m x 2m x ˜1m high • Adaptable to local climate and materials
Innotech Weilemer Weg 27 D - 71155 Altdorf-Böblingen Phone: (++49) 07031/744741 Fax: (++49) 07031/744742 EMail: email@example.com http://home.t-online.de/home/innotech.ing/
The three major drier components, as shown in Figure 3, are the solar collector (part d), food drier compartment (e), and the airflow system (a, b, and h). Air is circulated by fans, which use from 20-40W of power from a photovoltaic panel, a generator, or a central utility. Air is forced into the solar collector by the fans where it is heated by the sun, and then flows on to the food drier section. An advantage of the PV powered system is that, depending on the solar radiation, the air throughput is automatically adjusted by the speed of the fans. The plastic cover may be constructed from a sheet of greenhouse type UV-stabilized polyethylene (PE). Access to the drying chamber is gained by removing the plastic covering using the hand crank. The food is placed on a polyester mesh suspended by a grid of galvanized wire. This arrangement allows air to flow on all sides of the food, preventing the need to turn it during the drying process. Depending on local circumstances a drier may be built in a permanent installation (with concrete, for example), or in a portable construction. When introduced in a new region, the Hohenheim-type drier often requires customization to suit the local climate and manufacturing possibilities. Often a prototype is adapted and tested before proceeding with local manufacture.
Part Options Support Stone, slate, wood, metal, loam, barrels Frame Steel sheeting, wood, plywood, slate, concrete, stone, loam Heat insulation Polyurethane, Styrofoam, building insulation, cork, flax, straw, coconut fibers, wood shavings, leaves Sheeting (cover) LD-PE, LLD-PE, PTFE, PVC, PE-EVA Winding shaft Steel pipe, plastic, wood, bamboo, wicker Power source Photovoltaic cells, utility power, diesel generator
References: Burden, John. Wills, R.B.H. 1989: Prevention of Post-Harvest Food Losses: Fruits, Vegetables and Root Crops - A Training Manual. FAO.
http://www.fao.org/inpho/vlibrary/t0073e/t0073e00.htm Eckert, Manfred van; et. al. 1998: Mango Drying: A Tree Product Value and Income Generating Enterprise in Rural Areas. ITFSP internal paper #19. Nairobi, Kenya. E-mail: firstname.lastname@example.org
Häuser, Markus. Esper, Albert. 1996: Solar Tunnel Driers for Agriculture. GATE #2/1996. Pgs. 26-29. Solarer Tunnel trockner / Solar Tunnel Drier. Innotech promotional brochure ca. 1996. 4 pgs., http://home.t-online.de/home/innotech.ing/
Technical Information On The Solar Drier For Coconuts Developed Under PGCP. Notes provided by Bawalan, Divina D. Davao City, Philippines. 2 pgs., E-mail: email@example.com
Villaruel, Rose. 1996: A Solar Dryer for Coconuts Costs Less Than Fifteen Dollars. GATE #2/1996, Pg. 30. Wörner, Beate. 1997: A Technological Evergreen – the Story of the Hohenheim Solar Tunnel Drier, GATE #3/1997. Pgs. 20-24.
Solar Drying: Green, Matthew G. Schwarz, Dishna. 2001: Solar Drying Technology for Food Preservation. GATE Technical Information E14e. GTZ-GATE. 8 pgs. http://www.gtz.de/gate/
Vargas, Tania V. Camacho, Sylvia A. 1996: Solar Drying of Fruits and Vegetables: Experiences in Bolivia. FAKT, Energetica. 65 pgs. Solar Drier Designs: Devices for Food Drying: State of Technology Report on Intermediate Solutions for Rural Applications. 1979. GTZ-GATE. 80 pgs. (Drier theory and design; overview of 12 drier designs).
Green, Matthew G. Schwarz, Dishna. 2001: Solar Drier Plans: PGCP Coconut Drier and Kenya Black Box Drier. GATE Technical Information E16e. GTZ-GATE. 8 pgs. http://www.gtz.de/gate/
Survey Of Solar Agricultural Dryers – Technical Report T99. 1975: Brace Research Institute. 150 pgs. firstname.lastname@example.org (Reviews 24 drier designs).
Solar Drier Equipment Suppliers: Equipment Database. As of 2001, lists 4 solar drier vendors. http://www.fao.org/inpho/ Grupp, M. et. al. 1995: Comparative Test of Solar Dryers. Technology Demonstration Center Serial Report 2/95. Platforma Solar de Almeria (PSA), Synopsis. 22 pgs. (Quantitative comparison of 7drying methods).
Judge, Emma, et. al. 2000: Small Scale Food Processing – Revised Second Edition. Chapter 23: Dryers. ITDG Publishing. Available from http://www.developmentbookshop.com Old edition online at http://www.fao.org/inpho (Mentions less than 10 solar driers).
Solar Tunnel Dryer "Hohenheim" Elaborate Technology for tropical and subtropical countries....
Solar drying has been practised for conservation of foods for centuries. Utilization of the sun is more actual than ever. The solar tunnel dryer type "Hohenheim" unites simple construction, use of renewable energy and easy handling. This dryer is particularly apt for production of high quality products in agricultural enterprises. As a cooperative development of the Institute for Agricultural Engineering in the Tropics and Subtropics of Hohenheim University and INNOTECH Engineering Ltd., solar tunnel dryers are in commercial operation in more than 60 countries all over the world.
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Found a good "Drying & Dehydrating Foods" link? Let Us Know!
THE SOLAR FOOD DRYER http://www.solarfooddryer.com/Info/Book_Table_of_Contents.htm
Useful information, good general source, one design, home use
Drying Food University of Illinois at Urbana-Champaign College of Agriculture Cooperative Extension Service Circular 1227 http://www.ssrsi.org/Onsite/PDFbin/Drying%20Food.pdf
Contents Food Drying Basics Equipment and Methods for Drying Drying Fruits Drying Vegetables Drying Herbs How to Add Herbs in Food Drying Meats Good overview for home use. Good on pre-treatment.
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