Design, construction and performance evaluation of abox type solar. Solar cookers take longer to cook food but are easy to run. Results of thermal performance showed that, the parabolic solar cooker attained a maximum temperature of 86. Experimental investigation of a box type solar cooker. Sample dimensions of a box and parabolic solar cooker building a solar box cooker. The solar cooker as shown in fig 1, the box type solar cooker under consideration is a doublewalled hot box, i. Oct 29, 2010 let us first discuss about the box type solar cookers it is like a hot box, in which food can be cooked. Design of solar cooker a box type cooker consists of insulated box with a glass cover and a top lid, which has a mirror on its inner side to reflect sunlight into box when the lid is kept open.
An improved power free tracking system for box type solar. The box faces up and the sun is high in the sky for a good part of the day. This type of solar cookers are very much used in all over the world due to the faster cooking ability. Solar cooker with a close reflectors and b open reflectors. The student must have used a transparent plastic sheet instead of a glass sheet. Principles of solar box cooker design solar cooking fandom. For midday cooking at 20 n 20 s latitude, solar box cookers with no reflector need little repositioning to face the sun as it moves across the midday sky.
C on average basis and was the best followed by the boxtype solar cooker 52. A solar cooker is a device which uses the energy of direct sunlight to heat, cook or pasteurize drink and other food materials. Mar 20, 2019 the box type solar cooker can be used to cook only those food materials which require slow heating. Solar cooker 1 phyics project solar cooker 2 introduction.
The performance and costing of the cooker is compared with a baseline solar box type cooker sbc weighing 12. It is one of those solar cookers that are widely in use in various hotels and restaurants. A solar cooker with a wellinsulated volume for the cooking vessels, typical designs having from zero to four plane mirrors. This solar box consists of a box made of nonconducting materials like plastics, fiber glass or wood. Solar box type cooker vegetables, dal, rice, khichdi, pickles, idli, ghee and lot more is cooked by suns heat. It is because we need so many material to make the solar cooker. Solar cooking is a form of outdoor cooking and is often used in situations where minimal fuel consumption is important, or the danger of accidental fires is high. Solar energy is the energy obtained from the sun in the form of heat and light. The boxtype solar oven is capable of cooking food from direct solar rays. The water temperature needs to reach 150 degrees for 15 seconds to kill bacteria. It has been manufactured by keeping in mind the need of the modern day households. Of the three, parabolic cookers are the most advanced and efficient. A solar cooker is a device which uses the energy of sunlight to heat food or drink or to sterilize it.
In order to achieve higher temperatures required for baking and. The boxtype solar cooker cannot be used to cook those foods where strong heating is required. However, it suffers from a main disadvantage that it is required to regularly follow the sun along two directions. Numerous factors including access to materials, availability of traditional cooking fuels, climate, food preferences, cultural factors, and technical. Main parts of concentrating solar cookers as per the figure you can have a idea about the simple. Classification and working of different types of solar cookers. Food is cooked in 4 aluminium containers for 4 to 5 persons within 2 to 3 hours. You want to transfer the suns heat to your solar over.
An experimental study on box type solar cooker, sonali kesarwani, ajeet kumar rai and vivek sachann, journal impact factor 2015. Solar cookers dont work at night or on cloudy days, though during the best months for cooking, many foods can be cooked under intermittent clouds or a light haze, as long as food is put out early and there is definitely more sun than not overall. Conditions were not 100 percent for testing on day 1. Performance evaluation of a doubleglazed boxtype solar oven. Meals in solar cookers can take one to two hours longer to cook than in woodburning cookers but they require less attention. Thermal performance model of box type solar cooker with loaded water is presented. The biggest advantage of solar cookers is their ecofriendliness. Other types of solar cookers reach high temperatures capable of frying. At the end, the temperature of solar cooker increase 18 degrees. Heat is the form of energy sometimes called thermal energy that is transferred by a difference in temperature.
Make sure your test container has black paint on it the color black will absorb the suns energy. They are available in several sizes and configurations, all of which have their pros and cons. Solar box cooker most common and inexpensive type of solar cookers. What maximum temperature can ordinarily be reached inside a solar cooker.
Solar box type cooker solar water heater, solar thermal. A solar cooker needs an outdoor location that is sunny for several hours and protected from strong wind, and where food will be safe. C on average basis and was the best followed by the box type solar cooker 52. Many solar cookers currently in use are relatively inexpensive, lowtech devices, although some are as powerful or as expensive as traditional stoves, and advanced, largescale solar cookers can cook for hundreds of. Reflection is the throwing back of light, heat or sound by a body or surface, like a.
For example, the box hype solar cooker cannot be used for baking chapattis, etc and for frying because they require stronger heating. Through the centuries, the power of the sun has been tapped in numerous ways. Testing and reporting solar cooker performance clean cooking. In some trials using a solar oven that was made based on. The box type solar cooker has an insulated box painted black inside. Solar cooker classifications and working slideshare. Performance evaluation of a doubleglazed boxtype solar. Solar steam cooking system is an efficient and hygienic type of. Put the container inside with about 2 inches of water and a thermometer. Draw schematic labelled diagram of box type solar cooker. These box cookers have a very simple construction and they are made of low cost. Box type solar cooker a solar box cooker is like a hot box. To safely cook red meat you need to reach a temperature of degrees fahrenheit for 3 minutes.
Several scientific phenomena are involved in making your oven the best heater it can be. This cooker works with the solar energy, which is free. Parabolic cookers 1 box cookers solar box cookers sometimes called solar ovens are the most common and inexpensive type of solar cookers. In addition to the primarily technical aspects of solar box cooker design, factors including culture, appropriate technology, and aesthetics play a major role in the successful technology transfer of solar box cooking. Outer box of teakwood 69x 69x 28cm with glasswool m sulatlo n 5. The solar cooker used in the present investigation is of a double exposure type which consists of a box with a double glazed glass having an aperture of area 0. The experimentation of the solar box type cooker with finned cooking vessel showed consistent reduction in cooking time which is due to increase of the heat transfer surface area by fins attached to the external surface of the cooking vessel. For example, the boxhype solar cooker cannot be used for baking chapattis, etc and for frying because they require stronger heating. It is covered by a glass plate which allows heat to enter inside but does not allow heat to escape out. The absorber consists of a galvanized steel sheet painted black on its surface. Vieira da silva, s olarcooking system with or without heat storage for families and institutions, solar energy 75 2003 3541 a. Thermal performance evaluation of box type solar cooker. Solar cooking ppt free download as powerpoint presentation.
Solar cooker presentation by kyrsten butler on prezi. The inner box absorber plate is made of steel sheets while the outer box is made of wood. So the temperature of the water started increasing. Box type solar cookers are suitable mainly for the boiling type of cooking. The best performance of box type solar cookers was achieved with the largest cooker load. The cooking temperature in this case is close to 100c. Principle and working of box type solar cooker it is well known fact that a black coloured surface absorbs more heat than a white surface. This research paper describes the performance evaluation of a doubleglazed boxtype solar oven with reflector fabricated using locally available materials, compressed sawdust with binder. Let us first discuss about the box type solar cookers it is like a hot box, in which food can be cooked. Flavors remain intact and foods retain moisture and softness. The outer box of a solar cooker is generally made of g.
Below is the basic science for solar panel cookers and solar box cookers. Presentation of solar cooker kitchen stove solar energy. In the present investigation a highly efficient inclined box solar cooker is designed and fabricated details constructional feature of the cooker are described. The box type solar cooker cannot be used to cook those foods where strong heating is required. Jan 23, 2019 box type solar cooker a solar box cooker is like a hot box. Several types of solar cooker have been described in different books and literatures. Plane mirrormaximise the amount of light entering the solar cooker. It is the most commonly used model for household cooking. A box type solar cooker can be used only during the daytime. The boxtype solar cooker can be used to cook only those food materials which require slow heating. The experimental solar cooker consists of an aluminium absorber plate 1 mm. Set your solar cooker outside to directly face the sun. As per the constructional point of view there are many design available in this type of solar cookers.
Several successful solar box cooker designs have been established, accompanied with simple building instructions as well as tips and tricks. Determination of thermal performance of a box type solar cooker. People use solar cookers primarily to cook food and pasteurize water, although additional uses are continually being developed. Ppt solar cooker powerpoint presentation free to download. In the present investigation a highly efficient inclined box solar cooker is designed and fabricated details constructional feature of. An experimental study on boxtype solar cooker, sonali kesarwani, ajeet kumar rai and vivek sachann, journal impact factor 2015. Explain their function cbse class x science sa 2 3 marks. Box solar cookers have an insulated box, topped with a transparent glass or plastic cover and a reflector or reflectors that help heat the box. An approximation made in the above analysis is that the heat loss factor is assumed con stant. So solar concentrators are used to collect and concentrate suns. Solar cooker is a device for the preparation of food by focusing solar radiation on the food to be cooked. The box type solar cooker has the achilles heel of slow. Abstract mankind will continue to use energy, even if we all make a concerted to cut. With the help of a diagram explain the construction and.
The most popular and well known solar cooker is the box type, due to its ease of manufacture and lower costs tiwari and yadav, 1986, pande and thanvi, 1987, mullick et al. Another style of solar cooker is a parabolic solar cooker. Ppt solar cooker powerpoint presentation free to view. Turkmen, modelling of a hot box solar cooker, energy convers. Many solar cookers currently in use are relatively inexpensive, lowtech devices, although some are as powerful or as expensive as traditional stoves, and advanced, largescale solar cookers can cook for hundreds of people. Solar cookers manufacturers, solar cookers suppliers and. The walls of the box are made thick so as to minimise loss of heat due to radiation and is painted all black from. A large fraction of the mass of most food products is due to water, and more water may be added in the boiling type of cooking. The inner part of the box is painted black usually four block painted vessels. Design and construction of a wooden solar box cooker with.
A student has set up a solar cooker in a box by using a black painted aluminium sheet, a black cooking vessel, some glass wool, a glass sheet and a mirror plate. In this activity you built a simple boxtype solar oven that should have been able to cook a smore in sunny, warm conditions. Introducing a novel design in the realm of box type solar cookers. Solar box cooker is found to be the best because of its simple, easy design and relatively low cost. Thus, the box type solar cooker with a single reflector 8 has been promoted by the ministry of nonconventional energy sources, government of india.
Thermal performance evaluation of box type solar cooker using stone pebbles for thermal energy storage jagan nath shrestha and madhu ram byanjankar institute of engineering, tribhuvan university, gpo box 1175, kathmandu, nepal tel. 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. Name two components of solar cooker which are responsible to increase the temperature inside the solar cooker. So another important step to take if we want to save the environment is to find alternative ways to produce and use sustainable, clean energy. Types of solar cookers basically, there are 3 types of solar cookers available on the market.
We can cook our food without any cooking gas, kerosene, electricity, coal or wood. Construction of box type solar cooker the main parts of a box type solar cooker are. 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. It has a compact design and shape which is great for household purposes. A laboratory model of a box type solar cooker employing a nontracking concentrator has been designed and fabricated, and its thermal performance has been evaluated experimentally. Experimental investigation of the thermal performance of a. Determination of thermal performance of a box type solar. Common types of solar cookers box cooker panel cooker parabolic cooker 7. Temperatures inside the box can reach 400 degrees f and cooking can be done almost unattended, like a slow cooker. This cooker is preferable to a parabolic if small children are around. Food does not need stirring and there is no worry about the flames from the fire. Principles of solar box cooker design solar cooking. Reach temperatures up to 140 150 oc advantage of slow, even cooking of large quantities of food. Solar box cookers sometimes called solar ovens are the most common and inexpensive type of solar cookers.
However, it suffers from a main disadvantage that it is required to regularly follow the sun along two directions azimuth and altitude. Give any four possible mistakes in the construction and operation of the cooker. Advantages and disadvantages of using a solar cooker. What is the role of each item used in the solar cooker. Asia, australia, central america, north america, south america, eastern europe, western europe, middle east, africa. The cookers use either a flat piece or focusing collector, which collect the solar heat and transfer this to the cooking vessel. Elizabeth simon, kevin yok and liew jien jie representing the school of smk merbau. Efficiency of improved small scale box type hybrid solar cooker issbh is 38%. A solar cooker is an appliance similar to an oven, but it uses heat from sunlight to cook food instead of gas or electricity. Commercial versions of solar cookers fall into three main categories.
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