What is Scheffler cooker?
Wolfgang Scheffler is the inventor/promoter of the Scheffler Community Kitchen, an Institutional solar cooking system that uses large parabolic dishes that provide the heat for cooking large quantities of food in an indoor kitchen. Over 750 large cookers had been built distributed worldwide by early 2004.
What did Wolfgang Scheffler invent?
Scheffler Reflectors
Wolfgang Scheffler (born 1956) is the inventor/promoter of Scheffler Reflectors, large, flexible parabolic reflecting dishes that concentrate sunlight for solar cooking in community kitchens, bakeries, and in the world’s first solar-powered crematorium.
What is a Scheffler reflector?
Abstract-The Scheffler reflector is a new solar concentrator design which maintains a fixed focus while only having a single axis tracking mechanism. This design makes the construction and operation of high temperature solar concentrators accessible to developing nations. be focused well enough to strike a cooking pot.
Who invented the parabolic solar cooker?
[1-3] In 1869 Mouchot developed the first parabolic style solar cooker, which was later used by Napoleon III for French colonial troops in Africa.
Who is Wolfgang Scheffler and what did he invent?
Wolfgang Scheffler is the inventor/promoter of Scheffler Community Kitchens–large parabolic dishes for community kitchens, bakeries, etc. Over 2000 large cookers have been built distributed worldwide by 2008.
What is the best angle for a solar oven?
60°C
The most effective reflector angle i.e. the reflector angle with the greatest ability to convert the solar insolation into thermal energy is the 60°C. However, the data shows that the 70°C reflector angle produces the highest temperature consistently.
Where are parabolic solar cookers used?
These types of solar cookers are widely used in several regions of the world, most notably in China and India where hundreds of thousands of families currently use parabolic solar cookers for preparing food and heating water.
What is parabolic solar cooker?
Parabolic solar cookers use a parabolic-shaped reflector to direct sunlight to a small area in order to generate heat for cooking. They are able to reach high temperatures, 350 °C (662 °F) or higher, which allows them to be used for grilling and frying.
What is the best shape for a solar cooker?
It is best if the food container is black or a dark color, because darker colors absorb more heat. The parabola method or parabolic type solar cooker uses reflective surfaces formed into a circular, parabola shape that concentrates the rays of the sun.
Which glass is used in solar cooker?
Mirror: Mirror is used in a solar cooker to increase the radiation input on the absorbing space and is fixed on the inner side of the main cover of the box. Sunlight falling on the mirror gets reflected from it and enters into the tray through the double glass lid.
What can you cook in a parabolic cooker?
High-performance parabolic solar cookers and vacuum tube cookers can attain temperatures above 290 °C (550 °F). They can be used to grill meats, stir-fry vegetables, make soup, bake bread, and boil water in minutes. Vacuum tube type cookers can heat up even in the clouds and freezing cold.
How deep is the parabolic solar cooker?
29.0 cm
A parabolic dish solar thermal cooker having aperture diameter 1.8 m, depth 29.0 cm and focal length 69.8 cm was designed and constructed. The cooker was designed to cook food equivalent of 12 kg of dry rice per day, for a relatively medium size family.
Who is the inventor of the Scheffler community kitchen?
Wolfgang Scheffler is the inventor/promoter of Scheffler Community Kitchens –large parabolic dishes for community kitchens, bakeries, etc. Over 2000 large cookers have been built distributed worldwide by 2008.
Who is Wolfgang Scheffler and what does he do?
Wolfgang Scheffler is the inventor/promoter of the Scheffler Community Kitchen, an Institutional solar cooking system that uses large parabolic dishes that provide the heat for cooking large quantities of food in an indoor kitchen. Over 750 large cookers had been built distributed worldwide by early 2004.
Can A Scheffler be used for nighttime cooking?
The Muni Seva Ashram, has converted its steam-based Scheffler solar cooking array to use thermic fluid to be able to provide nighttime cooking. – Photo credit: India Herald
Which is the best Scheffler reflector for cooking?
To make cooking simple and comfortable the cooking-place should not have to be moved, even better: it should be inside the house and the concentrating reflector outside in the sun. The best solution was a eccentric, flexible parabolic reflector which rotates around an axis parallel to earth-axis, synchronous with the sun.