A canning jar painted flat black works fine to boil water. Questioning the norms and standards in the real context the solar cooker project. Set your solar cooker outside to directly face the sun. Solar energy is the most essential renewable energy which we can get from the sun. Put the solar cooker into the sun approximately one hour before you begin to cook in order to heat it up to 100 degrees or more. And a solar concentrator oven can be used like a conventional oven. The heat generated by this type of solar cooker is sufficient for the cooker to act as a grill. See more ideas about solar cooker, solar and solar oven. I have been reading a lot about solar technologies on the internet and have had the great chance of working. It consists of a single piece of cardboard with aluminum that is folded into a panel that acts like a reflector. Objectives by splitting into 23 person groups, students work in teams to build a. Rough plans for parabolic trough solar cooker introduction the parabolic trough cooker or cylindroparabolic solar cooker has several advantages over other solar cookers. Electric solar cooler is an essential appliances to save the electric energy, it is basic need where the electric energy is not available, as in small towns and rural areas it bipurpose device, it may run by solar as well as electric energy.
In these three kinds of solar cookers, the parabolic solar cooker is the best as it is much advanced in nature than the other two and is more efficient to use. Solar cooking in the uk quantifying uk domestic energy. Jan 19, 2017 well the biggest one and very obvious disadvantage is that it can only be used when there is sunlight. Everyday solar cooking renewable energy mother earth. Another solar cooker type is the concentration type where the solar radiation is directed to convey at a point called the focal point where the cooking pot is placed kulkarni et al, 1997, patel et al, 2000, hussein et al, 2008. These box cookers have a very simple construction and they are made of low cost. Questioning the norms and standards in the real context the solar cooker project will be closely cooperating with the green namibia.
Four basic types of solar cookers sunshine on my shoulder. This cooker is preferable to a parabolic if small children are around. Cooking with a box type solar cooker is similar to cooking in a standard oven but cooking takes a. With a solar oven, it doesnt matter where you live. Solar cookers can generally belong to one of three categories. Instructions to use a solar cooker solar association tiloo. This booklet covers low to mediumtemperature solar box cookers and solar panel cookers cookits that slowly and gently cook all the foods you boil, roast or bake. Put the container inside with about 2 inches of water and a thermometer. Their programs educate policy makers, maintain an international exchange network through conferences and publications, and,by bring solar cooking technology to areas of the world most in need of it. Instruct students to obtain materials for the solar cookers and follow directions in the lab activity handout to build each cooker. The gtzdme solar cooker field test in south africa 5.
Objectives by splitting into 23 person groups, students work in teams to build a mini solar cooker model that embodies the basic principles of a. It provides the instant fryinggrilling power of a pure parabolic cooker, and yet easier to construct because the reflective surface is only bent along one dimension. This solar cooker requires only cheap materials and the design is so simple. They are simple and relatively inexpensive to buy or to produce. Here we discuss the science and environmental effects of a solar cooker through handson activities. If you are new to solar cooking i recommend you can start with this completely free easy to build solar cooker plan. A box cooker cooks a meal in 23 hours depending on sunshine and quantity of food. Solar cooker international, panel cookers incorporate elements of box and curved concentrator cookers. Drawbacks of solar cookers cooking with solar cookers requires sunlight. A first approach to a self made, low budget hopefully solar cooker. Well the biggest one and very obvious disadvantage is that it can only be used when there is sunlight. The principle of cooking meals from the sun was largely developed in the french foreign legion, in the 1870s working principles. A parabolic cooker cooks faster or higher quantities. It is also one of the fastest and convenient ways to prepare food without the use of fuels those heat up the kitchen.
Use of solar cooker do not produce any smoke hence preventing air pollution. A solar cooker with an insolated area of square inches has. Solar energy, in particular, has large potential in india because the country receives 5000 trillion kwh every year. I first compared cooking times and cost data of regular gas stoves and solar cookers. Mini solar cooker model that embodies the basic principles of a parabolic. The dark color allows more heat energy to be absorbed by the cooking container. This makes the process difficult during winter months and on rainy days. Cooking is also having major portion of consumption of energy in developing countries. Slow cooking is different, but the differences are nice. What are the negative side effects of solar cookers. The testing and cooking needs to be done on a very sunny day and would be well suited to demonstration at a school fete or green day.
A small scale box type solar cooker ssb weighing 4. Information notes the building of the solar cookers could take up to half a day. Results of thermal performance showed that, the parabolic solar cooker attained a maximum temperature of 86. Another welldocumented design, the moltensalt cooker concentrates solar radiation onto a blackcolored water tank using a scheffler reflector. The solar cooking compendium scc is about the viability of solar stoves. A solar cooker is a container or a device that traps solar energy and helps in heating and cooking food. It is a device that allows you to cook food using the suns energy as fuel. A first approach to a self made, low budget hopefully. Other types of solar cookers reach high temperatures capable of frying. Have backup sources of fuel, such as wood or propane, but most of the time your solar oven will be your main source of cooking. Solar cooker pdf spreading solar cooking to benefit people and environments. Suitable thermal tests have been proposed and appropriate parameters identified, which pertain to the solar cooker and are relatively independent of the climatic. Solar oven page 6 of 6 a renewable energy project kit the pembina institute 5. Solar cookers international sci was established in 1987 to spread the use of solar ovens and cooking.
A paraboloid solar cooker is a spherical parabolic cooker. The cookit of solar cookers international is the most widely used solar cooker so far. Out of these cookers only paraboloid type solar cooker have received the commercial attention. Everything under the sun sun oven the original solar. Design and construction of a wooden solar box cooker with. Regardless of design, any solar cooker can only collect and use the amount of light that is available to its insolated surfaces. The continuous development of technology increases the demand of energy. Pdf design, construction and performance evaluation of. Any type of food, p articularly food that needs a long cooking time such as beans, samp, rice, meat stews and porridge can be cooked in a solar cooker.
Temperatures inside the box can reach 400 degrees f and cooking can be done almost unattended, like a slow cooker. What are the advantages and limitations of solar cookers. Various types of solar cookers exist, harnessing some of these principles. Solar cookers use sunlight as an energy source to cook food. Do operating instructions include a description of all replacable and fragile parts. Organising solar cooker building and using courses to determine the possibilities to begin to manufacture them by means of small scale industry phase 2a.
The solar cookers international network noted that pasteurizing water in a solar cooker before consumption by raising the temperature to 151 degrees fahrenheit 66 degrees celsius is an effective way to purify it as opposed to heating to 212 f100 c as you would in a kettle on a stove, and every type of solar oven can achieve sufficient. One of needs most famous solar cooks, kathryn mccoy of tennessee, offers these tips for cooking with a solar oven. Designers as far back as the 19th century recognized the potential of the suns energy to. Cooking also takes a significantly longer time as compared to conventional methods. The reflected rays heat the air trapped in the box sufficient to cook food. Hightech versions, for example electric ovens powered by solar cells, are possible, and have some advantages such as being able to work in diffuse light. The advantages are speed and the potential to cook when it is cool outside. You can bake bread, cake, scones and even meringues in a solar cooker, although the box cookers are more suit able for baking than the reflector cookers. A promising idea for solar cooker was introduced by bernard of france in 1994 and barbara kerr a few. To learn about the problems which come with cooking in the developing world and how solar power can help. I examined solar cooker use amongst retirees in chandigarh, india to determine factors affecting cooker diffusion. To learn about the basic principles of solar cooking. Evacuated tube solar cookers use a highly insulated doublewall glass tube for the cooking chamber, and do not require large reflectors. The amount of food that you can cook depends upon the size of your cooker.
The solar oven its not uncommon in emergency situations for the power to be out. A reflector of a diameter of 1,4m for instance boils 6 litres of water per hour. Men perceived the solar cooker as a special engineered barbecue and were willing to prepare food on the solar cooker. Solar cookers take longer to cook food but are easy to run. The water heats, converts to steam and passes through a heat exchanger to the solar cooker. They typically require more frequent reorientation to the sun, but will cook more quickly at higher temperatures, and can fry foods. A solar cooker, or solar oven, is a device which uses the energy of sunlight to heat food or drink to cook it or sterilize it.
The box oven is the most well known type of solar cooker. Higherend models have more efficient insulation and more panels. A suspended box solar oven with four number foldable mirror. Case study of solar cooker use by retirees in chandigarh. Solar cooking with the sun 3 solar cookers are used differently. To know about what is a solar cooker and its working, lets have a look into how to make a solar cooker, various advantages and disadvantages of a solar cooker. A dark pot placed in a plastic bad can be the cooking container. A box cooker is most effective when it is used like a crockpot slow cooking or low heat over a long time. Types of solar cookers basically, there are 3 types of solar cookers available on the market. C on average basis and was the best followed by the box type solar cooker 52. It will walk you through the process of building a simple solar cooker, using the cooker, and teaching simple solar cooking concepts to others. Solar cooking in the uk quantifying uk domestic energy saved.
Nevertheless the solar cooker was designed in the year 1950. A solar cooker has a mirror that helps in letting the suns uv rays in and converts it into infrared light rays. The parabolic solar cooker or curved concentrator solar cooker concentrates the suns heat onto the bottom or the sides of a potsimilar to a stovetop. Make sure your test container has black paint on it the color black will absorb the suns energy. After the construction of solar cookers has been completed, ask students to. Parabolic cookers 1 box cookers solar box cookers sometimes called solar ovens are the most common and inexpensive type of solar cookers.
A parabolic solar cooker might be used like a stovetop by heating a pan or pot to a high temperature. When food is cooked in solar cooker,its nutrients do not get destroyed. But what are the advantages to using a solar cooker. It is very much like the panel cooker above, except that the open side is covered by clear glass or plexiglass, creating an air tight heat trap or oven in the center of the box.
The standard solar oven, and the one you would probably make if you were involved in a solar cooker project, is an insulated box with a glass cover and a reflective panel that focuses light on the cooking area. It cannot be used during night time or when the sky is covered with clouds or during rain. See the paper pdf moltensalt solar cooker silicon institute of technology, bhubaneswar. Food does not need stirring and there is no worry about the flames from the fire. Solar cooker project jewish world watch jewish world watch. It is always advantageous to use a solar cooker as they use no fuel and have less operational costs. Another style of solar cooker is a parabolic solar cooker. Meals in solar cookers can take one to two hours longer to cook than in woodburning cookers but they require less attention. Therefore the alternative devices are achieved which is based on renewable energy. If the day is sunny, clear, and warm, the temperature inside the cooker should begin to reach 100 degrees c or more within 20 minutes or so. So if you place experience lots of cloudy days or rainy seasons and you dont have any other backup appliance then you are like attached to ano. Allow the cooker to reach its maximum temperature about 200 degrees c or higher and maintain that for an hour or more. On the whole, the hot box costs just a little more than a panel cooker, and because its insulated, it.