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. Thermal performance evaluation of box type solar cooker. The cooking temperature in this case is close to 100c. Modeling of solar cooker is done using the trnsys software.
A solar cooker is a device which uses the energy of direct sunlight to heat, cook or pasteurize drink and other food materials. Design and construction of a wooden solar box cooker with. It is found that solar cooker with finned base is of a grade. 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. So, this type of solar cooker is used to cook only those food materials which require gentle heating.
The cooking time depends primarily on the materials being used, the amount of sunlight at the time of cooking, and the quantity of food that needs to be cooked. 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. Parabolic cookers 1 box cookers solar box cookers sometimes called solar ovens are the most common and inexpensive type of solar cookers. 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. Objectives by splitting into 23 person groups, students work in teams to build a mini solar cooker model that embodies the basic. Solar box type cooker vegetables, dal, rice, khichdi, pickles, idli, ghee and lot more is cooked by suns heat. Get info of suppliers, manufacturers, exporters, traders of parabolic solar cooker for buying in india. Solar box cooker is the simplest type of solar cooker available because it is relatively cheap, lowtech device 26. 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. But what are the advantages to using a solar cooker.
The temperature is solar intensity on cooker box, wm2 attained inside the cooker box has been recorded in k ratio of overall heat loss coefficient and trans different months. Low cost wooden box solar cooker in the present design, an attempt is made to reduce the cost of a conventional box type cooker. Thus, the box type solar cooker with a single reflector 8 has been promoted by the ministry of nonconventional energy sources, government of india. This newly designed cooker will be very appropriate for rural applications. This research paper describes the performance evaluation of a doubleglazed boxtype solar oven with reflector fabricated using locally available materials, compressed sawdust with binder. 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. We sell solar box type c ooker as well as solar parabolic cooker. A solar cooker is a device which uses the energy of direct sunlight to heat, cook or pasteurize. Test procedures have been proposed to evaluate thermal performance of solar cookers. Determination of thermal performance of a box type solar cooker article pdf available in solar energy 1 march 2015 with 1,610 reads how we measure reads.
The advantages are speed and the potential to cook when it is cool outside. To learn about the basic principles of solar cooking. The contents of the solar cooker could be eaten by children, livestock or other animals. It should be noted that the temperature inside box type solar cooker can go from 100 0 c to 140 0 c within 2 to 3 hours when placed in sunlight. Different categories of solar cooker ranging from concentrator types, solar ovens, box type cookers with or without reflectors and indirect solar cookers have. Design, construction and performance evaluation of abox type solar. Solar box cookers sometimes called solar ovens are the most common and inexpensive type of solar cookers. Sharma a, takeshi iwata b, hiroaki kitano b, kazunobu sagara a,1 a department of architectural engineering, graduate school of engineering, osaka university, 21 yamadaoka, suita, osaka 5650871, japan b department of architecture, faculty of engineering, mie university, tsu 514. Performance evaluation of a doubleglazed boxtype solar. The resulting solar cooker power curve is a useful device for interpreting the capacity and heat retention ability of a solar cooker. The student must have used a transparent plastic sheet instead of a glass sheet. Basically, there are 3 types of solar cookers available on the market.
Information notes the building of the solar cookers could take up to half a day. The simplest type of solar cooker is the cookit shown in figure 1. Build your own solar oven page 6 of 6 a renewable energy project kit the pembina institute 5. A solar cooker is a container or a device that traps solar energy and helps in heating and cooking food. Solar cookers how to make, use and enjoy 10th edition, 2004. C ooking pots system is coated with high thermal absorbing coating. Boxtype solar cookers are suitable mainly for the boiling type of cooking. If you want to understand the various types of solar cookers out there, if you want to cook your food for free, have fun with the family, enjoy the outdoors and simply relax for a. 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. Differentiate between boxtype solar cooker and spherical. As a result, sensible heating up to the cooking temperature requires almost 4.
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. Types of solar cookers basically, there are 3 types of solar cookers available on the market. Other types of solar cookers reach high temperatures. A canning jar painted flat black works fine to boil water. The cooking power curve is independent of location and date provided that protocol is followed. An approximation made in the above analysis is that the heat loss factor is assumed con stant. Fabrication of the cooker is very easy and so cost of labour is also lowered down. Allow the cooker to reach its maximum temperature about 200 degrees c or higher and maintain that for an hour. The box type solar cooker has the achilles heel of slow heating rate, low. Cooking with a box type solar cooker is similar to cooking in a standard oven but cooking takes a longer period of time. Temperatures can get so hot that you can fry food or pop popcorn.
The advanced boxtype solar cooker a sectional view of different advanced box cooker designs is shown in fig. Solar box cooker is found to be the best because of its simple, easy design and relatively low cost. Thermal performance of a reflector based solar box cooker. Air temperature, wind, and latitude also affect its performance 26. Sony 65 class a8g series 4k uhd tv smart oled with hdr. Find here online price details of companies selling parabolic solar cooker. Pdf design, construction and performance evaluation of. In the present investigation a highly efficient inclined box solar cooker is designed and fabricated details constructional feature of.
The main differences from the classical box cooker are the pot is fixed in conductive contact to the absorber plate, allowing for better heat transfer the pot is set into the glazing, allowing access to the pot during cooking while. Vieira da silva, s olarcooking system with or without heat storage for families and institutions, solar energy 75 2003 3541 a. The performance of a boxtype solar cooker can be represented in terms of two figures of merit, f1 and f2, which can be determined by simple thermal tests and to characterize the cookers 1. 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. It consists of a single piece of cardboard with aluminum that is folded into a panel that acts like a reflector. It concentrates the solar energy in a small region called focus. Performance of this new design will be more or less same as conventional cooker. 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. The exergy efficiency of finned base boxtype solar cooker is higher than the unfinned base box type solar cooker. On my cast iron cooking channel i keep it real, and i teach easy to cook recipes with food you already have at home. A novel advanced boxtype solar cooker sciencedirect. Food is cooked in 4 aluminium containers for 4 to 5 persons within 2 to 3 hours. Even when the idle solar cooker can be left unattended, a box or panel type cooker requires long cooking times in the sun. A suspended box solar oven with four number foldable mirror.
Specification box type solar cooker size of the cooker uv resistant molded fiberglass body 540 x 200 mm. The box type solar cooker has the achilles heel of slow. Solar box type cooker solar water heater, solar thermal. Thermal performance of a solar cooker based on an evacuated tube solar collector with a pcm storage unit s. Results of thermal performance showed that, the parabolic solar cooker attained a maximum temperature of 86. The continuous development of technology increases the demand of energy. A promising idea for solar cooker was introduced by bernard of france in. A solar cooker is a device that can cook food or boil water using only thermal energy from the. A performance study of this ib beam component of solar intensity, wm2 lc global solar intensity on horizontal surface, wm2 type of cooker has been made.
These box cookers have a very simple construction and they are made of low cost. Different kinds of solar cookers more than 300 models of solar cooker had been made so far use. Pdf determination of thermal performance of a box type. Design, construction and performance evaluation of abox type solar cooker. This book helped me choose the type of cooker that is most practical for my needs. Construction of box type solar cooker the main parts of a box type solar cooker are. One of needs most famous solar cooks, kathryn mccoy of tennessee, offers these tips for cooking with a solar oven.
The cooker will be very appropriate for rural applications. 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. A box type solar cooker can be used only during the daytime. Cooking tray is made up of alluminium and powder coated. Experimental investigation of a box type solar cooker. What are the differences between boxtype and spherical. Turkmen, modelling of a hot box solar cooker, energy convers. They found that the nutrient compositions of the species dried with the solar driers were high and compared well with other methods of open drying. Design specifications for the solar box cooker download table. Several types of solar cooker have been described in different books and literatures. Spherical reflector type solar cooker i in the spherical reflector type solar cooker, a concave reflector or a parabolic reflector is used. The reflected rays heat the air trapped in the box sufficient to cook food. Solar cooker designs just as there are many kinds of conventional cookers ovens, stovetops, broilers, microwave ovens, there are many kinds of solar cookers. Therefore the alternative devices are achieved which is based on renewable energy.
Cooking is also having major portion of consumption of energy in developing countries. A solution for this problem in a project in south africa was to place the solar cooker on a table, however. An experimental study on boxtype solar cooker, sonali kesarwani, ajeet kumar rai and vivek sachann, journal impact factor 2015. A solar cooker has a mirror that helps in letting the suns uv rays in and converts it into infrared light rays. Study of second figure of merit of box type solar cookers.
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