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# Solar cooking

## on Nov 12, 2013

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## Solar cookingDocument Transcript

• Instructions 1. o 1 Place the large cardboard box on a clean, clear workspace. Close the flaps and tape them shut. Set the medium-sized box on the flaps and trace the bottom in pencil. o 2 Set the upper box flaps on a piece of scrap cardboard. Place the ruler in line with the pencil marks and cut out the interior segments with the craft knife. Your large box should now have a rectangular hole at the top. o Sponsored Links Excel Power Analysis  Cool book: Guerilla Data Analysis Using Microsoft Excel by MrExcel www.MrExcel.com o 3 Glue or tape the top flaps of the medium-sized box to its own outside. Slide this box inside the large box to ensure that it fits. Remove it and glue aluminum foil to the inside of both the large and medium boxes, including the inner surface of the top of the larger box. Allow the glue to dry. o 4
• Crumple some newspaper and set the medium box inside the larger box. See where the top of the medium box is in relation to the large box. Add or remove newspaper as necessary to get the tops of both boxes on the same level. o 5 Measure the inside of the inner box. Cut out a piece of cardboard which is about half an inch smaller than these dimensions. Attach aluminum foil to this piece with glue. After the glue has dried, paint the aluminum foil with black craft paint. This piece will be used as a drip pan. o 6 Place the large sheet of cardboard down on your work surface so that the corrugations run from left to right. Turn the solar oven upside down and place it on top of the cardboard with the longest edges at the top and bottom. Trace the top of the oven in pencil. Mark four two to three-inch flaps outside of this perimeter. This will become a lid for the solar oven. o 7 Cut the edges out of the cardboard lid and fold the flaps down. Seal them with box tape. o 8 Measure the opening on the top of the solar oven. Measure the same size rectangle on the top of the lid. Cut out the segment on three sides so that it forms a flap. Glue aluminum foil to the entire underside of the flap. o 9
• Tape a large oven bag to the underside of the opening in the solar oven lid. Bend a wire hanger so that it can be inserted into the corrugations in the cardboard to hold the lid open. Set the black drip pan in the oven and prop the lid open before cooking. Sponsored Links • Read more: How to Make a Solar Oven Science Fair Project | eHow http://www.ehow.com/how_4507254_make-solar-oven-science-fair.html#ixzz2WIY80GDo Instructions
• 1. 1 o Check both cardboard boxes for holes or tears. Patch any holes thoroughly with duct tape and paper or cardboard to prevent heat loss while cooking. 2 o Paint the interior of the smaller box black. This will help your oven convert sunlight into heat, raising the internal temperature and cooking your food. Sponsored Links o Free Lesson Plans  Browse Lesson Plan ideas for K-12 classrooms. Join ePals for free! www.ePals.com/join 3 o Place one box inside the other. Tear or cut paper into half-inch strips and pack into the gap between the boxes to serve as insulation. 4 o Cover the flaps of the outer box with aluminum foil, using duct tape to hold foil in place. The flaps will become reflectors, focusing sunlight into the oven's interior. 5 o Place food inside the solar cooker, along with a thermometer so you can gauge the temperature. 6 o Cover your oven with a sheet of clear glass or Pyrex. Weight it with bricks or rocks: the added pressure will increase the oven's heat retention. 7 o Place the solar cooker in direct sunlight, and position the "reflector" flaps to focus maximum light toward the interior of the oven. Use duct tape if necessary to secure the flaps into place. 8 o Watch your oven carefully to make sure it reaches a temperature of at least 200 degrees F. If you are cooking food containing raw meat or eggs, be sure to check the internal temperature using a meat thermometer. Spon Read more: How to Make Solar Cookers | eHow http://www.ehow.com/how_5480450_make-solarcookers.html#ixzz2WIZqu9tV
• Instructions 1. o 1 Place the large cardboard box on a clean, clear workspace. Close the flaps and tape them shut. Set the medium-sized box on the flaps and trace the bottom in pencil. o 2 Set the upper box flaps on a piece of scrap cardboard. Place the ruler in line with the pencil marks and cut out the interior segments with the craft knife. Your large box should now have a rectangular hole at the top. o Sponsored Links Templates - Free Download  Hundreds of Cool Templates. Quick & Easy Download. All free www.templatepinboard.com o 3 Glue or tape the top flaps of the medium-sized box to its own outside. Slide this box inside the large box to ensure that it fits. Remove it and glue aluminum foil to the inside of both the large and medium boxes, including the inner surface of the top of the larger box. Allow the glue to dry.
• o 4 Crumple some newspaper and set the medium box inside the larger box. See where the top of the medium box is in relation to the large box. Add or remove newspaper as necessary to get the tops of both boxes on the same level. o 5 Measure the inside of the inner box. Cut out a piece of cardboard which is about half an inch smaller than these dimensions. Attach aluminum foil to this piece with glue. After the glue has dried, paint the aluminum foil with black craft paint. This piece will be used as a drip pan. o 6 Place the large sheet of cardboard down on your work surface so that the corrugations run from left to right. Turn the solar oven upside down and place it on top of the cardboard with the longest edges at the top and bottom. Trace the top of the oven in pencil. Mark four two to three-inch flaps outside of this perimeter. This will become a lid for the solar oven. o 7 Cut the edges out of the cardboard lid and fold the flaps down. Seal them with box tape. o 8 Measure the opening on the top of the solar oven. Measure the same size rectangle on the top of the lid. Cut out the segment on three sides so that it forms a flap. Glue aluminum foil to the entire underside of the flap. o 9
• Tape a large oven bag to the underside of the opening in the solar oven lid. Bend a wire hanger so that it can be inserted into the corrugations in the cardboard to hold the lid open. Set the black drip pan in the oven and prop the lid open before cooking. Sponsored Links • Read more: How to Make a Solar Oven Science Fair Project | eHow http://www.ehow.com/how_4507254_make-solar-oven-science-fair.html#ixzz2WIcHNutW Instructions 1. o 1 Cut your pizza box top about 1 inch around the edges, leaving only the back uncut. This creates a flap for your solar cooker. o 2 Use your black marker or paint to fill in the entire bottom of the inside of the solar cooker. Color all the way to the edge. o Sponsored Links Gas Flow Calibration  Download a Free Best Practice Guide On Effective Gas Flow Calibration. www.e.FlukeCal.com/CalibrationGuide o 3 Tape foil over the area that you filled in black in the inside of the solar oven. o 4 Place the box on top of the plastic and mark a line around the solar cooker. Cut the plastic just inside the square line that you drew. o 5 Tape the plastic to the sides of the inside bottom of the box, pulling it taut. o 6 Cut a piece of foil to fit the bottom of the inside flap and tape it on. o 7 Punch a small hole through the back of the flap and knot the string through it. Connect the string to a thumbtack or staple on the back edge of the bottom of the box making a lever for the flap of your solar oven.
• Read more: How to Make a Fast Heating Solar Oven | eHow http://www.ehow.com/how_4929421_make-fast-heating-solar-oven.html#ixzz2WIeVMK6O Instructions 1. o 1 Center the smaller box inside the larger box. Fill the gap between the boxes with tightly crushed newspaper. This will help prevent heat loss. o 2 Line the inside of the smaller box with reflective material such as Mylar or space blanket material. You can use aluminum foil, but it will darken over time and need to be replaced. The reflective material doesn't have to be perfectly smooth. Hold it in place with glue. Use masking tape if you've used aluminum foil, so it will be easier to replace. o Sponsored Links Kerja Sambilan Untuk Wang  RM20 Setiap Survey - Ambil Bahagian Survey Berbayar Online. Daftar Sini tinjauanbandingan.net/KerjaSambilan o 3 Cover the piece of lumber with reflective material. Smooth out wrinkles and attach the material with glue or rubber cement. This will become the reflector. o 4 Make supports for the wooden reflector. If you're using rectangular boxes, cut the dowels to half the length of the shorter side of the outside box. Glue them to the top of the rim of the outer box on one side so that they point straight up and can support one side of the reflector lid. Rest one side of the lid on the opposite side of the box and then rest the other side on the dowels. Check that the lid is at a 45degree angle with a protractor and adjust if necessary.
• o 5 Remove the lid and slide the glass on top of the box. The glass will intensify the heat. When it's time to cook, remove the glass and place the food inside the box, then replace the glass. Rest the reflector lid against the dowels. Sponsored Links • Read more: How to Make a Solar Oven Using Glass | eHow http://www.ehow.com/how_5375902_make-solar-oven-using-glass.html#ixzz2WIdiklzv A solar oven, when built according to the simple directions, is a low-tech but effective method for cooking food. Solar ovens get hotter faster if the surface area catching the rays of the sun is larger and if the cooking pot or pan is insulated by trapped air during the cooking process. Building a working solar oven is accomplished with parts found at the grocery store, or even with “found” parts. Add this to my Read more: How to Make a Good Solar Oven | eHow http://www.ehow.com/how_6742886_makegood-solar-oven.html#ixzz2WIf3RE9G Instructions 1. o 1 Close the top flaps on the larger box. Place the smaller box on top of this. Trace the bottom of the small box on the closed flaps of the larger box. Cut out along this line. o 2
• Cover the inside of the two boxes with foil. o Sponsored Links Buat Duit Secara Online  Beli Saham, Minyak, Forex, Emas. \$2000 Bonus Untuk Pedagang baru! www.plus500.com.my/Malaysia o 3 Set the smaller box inside the opening you cut in the top of the larger box. o 4 Measure and cut one of the pieces of cardboard so that it fits inside the smaller box. Cover this with foil. Paint it black. After it dries, set it in the bottom of the box, black side up. o 5 Fashion a lid for the top of the oven out of the other cardboard piece. Draw a line for the opening by matching the top of the smaller box. Cut the opening, leaving one side still attached for a hinge. Cover the inside of this flap (the side facing the inside of the box) with the foil. o 6 Flip the lid over. Cover the open space with oven proof plastic and glue it into place. o 7 Put the food to be cooked in the oven. o 8 Place the lid back on top of the box. Hold the reflector lid open by inserting a piece of the wire hanger into the cardboard. Pizza Box Oven • The pizza box solar oven design is a simple design for children and teaches them the basic principal of solar cooking. This oven can heat up to 200 degrees F when it is set in direct sunlight on a warm, sunny day. This simple construction uses a large pizza box, aluminum foil, black construction paper, plastic wrap, masking tape and string. The oven is perfect for cooking small desserts, such as S'mores. Cooking time is roughly twice that of a conventional oven. Panel Cookers • Panel cookers are fairly simple to make, and you can fold them easily for storage. The panel cooker has an open design and will not reach temperatures as hot as box ovens. You can make them from reflective car shades or cardboard and foil. They work best in areas where the sun's rays come in at an angle instead of directly overhead. Assemble panel cookers in as little as one hour. These cookers
• are very inexpensive to make and are best for heating instead of cooking. Full cooking times can be four times longer than a traditional oven. Big Box Ovens • Big box ovens can cook many items at a time because you can build them to any size. These ovens are generally made from wood or large cardboard boxes. Construction of these cookers can require a lot more time and effort than panel cookers. You don't need to turn box ovens toward the sunlight. They cook evenly on any sunny day. Cooking times are double that of a traditional oven, and temperatures can reach well over 200 degrees F. Parabolic Cookers • Parabolic solar ovens are the most expensive type of solar oven to build. They cook as fast as a traditional oven and, unlike the other cookers, they can fry food. These cookers look much like a satellite dish and can reach very high temperatures. You must readjust them every 45 minutes to keep them in the path of the sun's rays. Parabolic cookers can also damage the eyes due to their intensity. Cover them when not in use due to fire hazards. Read more: Solar Oven Design Ideas | eHow http://www.ehow.com/list_6460826_solar-oven-designideas.html#ixzz2WIj06rmh How to Build a Solar Oven That Can Boil Water By Misty S. Bledsoe, eHow Contributor • • • Share • • Print this article
• Use black pots with clear lids to boil the water. Solar ovens and solar cookers both have the capability of cooking food and boiling water, making them useful for emergency drinking water and conventional cooking. Building a solar oven that boils water can be done with supplies you may already have or can be obtained at any local grocery store. It should take about 20 minutes or less to make the solar oven once you have all necessary supplies. Making a solar oven to boil water can be done alone or as a fun project with family or friends.Does this Spark an idea? Read more: How to Build a Solar Oven That Can Boil Water | eHow http://www.ehow.com/how_6456329_build-oven-can-boil-water.html#ixzz2WIjWXF8U Instructions 1. o 1 Place the reflective windshield cover with the silver shiny side up on a flat work surface. Make sure it's lying with the notch for the rear view mirror at the top. o 2 Cut the Velcro pieces into 1½- to 2-inch pieces. Thread a needle with about one arm's length of sewing thread. Cut the thread and knot the end. Set the threaded needle aside. o Sponsored Links Drinking Water Delivery  Free delivery + water dispenser, Kuala Lumpur (KL) & Selangor area www.waterexpress.com.my o 3 Grasp each side of the reflective windshield cover and bring both sides into the middle so that the edges overlap each other by about 1 inch. The middle of the notch should form a closed point and the whole thing should look like a cone. Mark a spot at even intervals on one side of the windshield cover and on the inside of the other half where the two meet roughly every 3 or 4 inches. This is where you will sew the Velcro pieces.
• o 4 Sew each piece of the Velcro into place, making sure that you are sewing opposite pieces of the Velcro to each side. If you find the knot at the end of the thread to not be secure enough to latch the Velcro into place, place the Velcro aside and secure the two sides of the windshield cover with duct tape on the outside seam instead. o 5 Place a box or bucket outside facing the sun. Place the point end of the cone shaped solar oven into the box or bucket. o 6 Fill a black pot two thirds full of water and cover it with a clear lid. o 7 Place a small piece of flat wood inside an oven-cooking bag and put the pot of water on top of the piece of wood. Secure the oven bag with air still inside it with a knot or some string. o 8 Put the oven bag and its contents into the bottom of the cone shaped solar oven. o 9 Check on the water at 30 minutes and then again every 15 minutes after that to see if the water is boiling. Instructions 1. o 1 Line the inside of the box with aluminum foil. Glue the aluminum foil into place and allow it to dry. The aluminum foil will reflect light that strikes the walls of the box back into its interior, warming it up. Paint the outside of the box black. Black is an excellent absorber of heat, and the black paint will help the solar oven heat up faster. o 2 Carefully unroll aluminum foil and cut off strips that are the same size as the sheet of cardboard. It is important not to wrinkle or crease these sheets of foil. Carefully glue the foil to one side of the sheet of cardboard, completely covering it. Put the foil in place gently, and press it onto the cardboard evenly. Again, it is important not to wrinkle this foil. The sheet of foil-sided cardboard will function as a mirror, and that mirror will function better if it is flat.
• o Sponsored Links 100% Free DataSheet (PDF)  Over 20000000 DataSheet. It's Free. Multi Fast Search System. www.AllDataSheet.com o 3 Tape the mirror to one side of the box using the duct tape. Bend the wire into a 90 degree angle approximately one inch from the end. Tape the short bent end of the wire to the side of the mirror about 3 inches from the hinge. This is the prop that holds the mirror in place. o 4 To use the solar oven, place the pot inside the box. Cover the top of the box with the sheet of glass. Glass lets visible light pass through, but traps heat. The light from the sun is allowed into the box where it is absorbed by the black pot. The pot radiates heat as it absorbs light. The glass traps this heat in the box, raising the temperature. The glass makes the box function as a small greenhouse. Bend the straight end of the prop so that when it is rested on the glass, the mirror reflects additional sunlight into the oven. Read more: How to Make a Large Solar Oven Using Glass | eHow http://www.ehow.com/how_6711309_make-solar-oven-using-glass.html#ixzz2WIoqJSfv A box-style solar reflective oven is a great addition to any camping trip. You can prep your meals in the morning and place them in the sun to cook while you spend the day exploring.
• Dinner will be hot and already made when you return, and it is safe to leave this style of solar oven alone. Think of it as an outdoor Crock-Pot that requires no electricity. Clean, green and efficient---you can make a solar reflective oven in about an hour (plus paint drying time). Add this to my Recipe Box. you don't need a campfire to make s'mores. A solar oven made from an old pizza box melts the marshmallows by harnessing the sun's energy. This science experiment is made with simple materials that most people will find around the house. It also teaches kids about recycling by using pizza boxes that might otherwise go straight to the trash can. The solar oven is safe for kids to use for cooking their own snacks. Instructions 1. o 1 Mark a square on the top of the pizza box. Leave at least 1 inch around the edges of the square. Carefully cut three sides of the square with scissors or a box cutter. Leave the fourth side intact. o 2 Lift the flap you cut and fold it backward to make a crease along the side you didn't cut. o Sponsored Links Free K-12 Lesson Plans  Browse Lesson Plan ideas for K-12 classrooms, Join ePals for free! www.ePals.com/join o 3 Cover the flap with aluminum foil, securing it to the back side of the flap with tape. This creates the reflective surface that directs the sun's light into the solar cooker. o 4 Stretch plastic wrap across the opening created by the flap. Tape the plastic wrap to the box making sure it is pulled tight. o 5 Place aluminum foil in the bottom of the pizza box solar oven. This also helps harness the sun's energy. Cover the aluminum foil on the bottom of the box with black construction paper. o 6 Place a graham cracker topped with a marshmallow inside the solar oven cooker. Place the pizza box oven in a sunny location. Prop open the aluminum foilcovered flap so the sun reflects off of the aluminum foil and onto the marshmallow.
• A solar oven, when built according to the simple directions, is a low-tech but effective method for cooking food. Solar ovens get hotter faster if the surface area catching the rays of the sun is larger and if the cooking pot or pan is insulated by trapped air during the cooking process. Building a working solar oven is accomplished with parts found at the grocery store, or even with “found” parts. Add this t Read more: How to Make a Good Solar Oven | eHow http://www.ehow.com/how_6742886_make-good-solar-oven.html#ixzz2WIwclnlU How to Make Solar Ovens from a Pizza Box By eHow Contributor • • • Share • • Print this article Solar ovens You can make a solar oven from a pizza delivery box. Solar ovens are a great way to cook food without using fossil fuels. Solar ovens are approved for use in camping areas where campfires are not allowed. Making a solar oven from a pizza box is also a great way to demonstrate solar power to children. The pizza box solar oven is the most basic form of solar ovens. Larger solar ovens can be built that will cook an entire meal. Add this to my Recipe Box. Other People Are Reading • How to Make a Solar Cooker for 8th Grade • How to Make a Solar Oven Science Fair Project Things You'll Need • pizza box • box cutter • aluminum foil Show (4) More Instructions 1.
• o 1 The first step in making a pizza box solar oven is to prepare the top. Draw a square on the top that leaves a border of about 1 ½ inches. It will look like a picture frame. Cut the top of the box along three sides of the drawn square leaving one side attached. Fold the cut out square flap back along the remaining line. o 2 Line the flap with aluminum foil on the inside so that the foil will face the interior of the solar oven when it is closed. Bring the foil to the outside and secure with electrical tape. You do not want tape inside of the box. Electrical tape is recommended because it will stand up to heat. o Sponsored Links Men's Skin Centres  The Ultimate Body Solution for Men Get Rid of Flabby Tummy @ RM1199 www.MenSkinCentre.com.my/Body o 3 Next you will line the interior of the solar oven with aluminum foil. Secure the foil with electrical tape. Do not put the tape inside of the box, wrap the foil over the edges of the box and secure on the outside. You are trying to keep the interior of your solar oven reflective. o 4 Cut a piece of plastic wrap or heavy plastic laminate larger than the hole in the top. Plastic wrap will suffice if you are only using the oven once or twice. Tape the plastic to the inside of the top of the box making sure it is sealed to prevent the heat from escaping. o 5 Close the solar oven. Place plastic wrap over the hole in the top and secure with electrical tape. o 6 Line the bottom of the box with black construction paper. The interior of solar ovens are usually black because it absorbs heat. o 7 You can form additional aluminum foil into a holder for the food to be cooked or use aluminum pie plates or shallow dark containers. o 8 To cook in the pizza box solar oven place the food in the box, close the box and place in direct sunlight. Lift the flap and prop it open with a dowel or stick. Adjust the flap to capture the most sunlight and reflect it into your pizza box solar oven.
• The reflected sunlight will provide the heat and cook the food. Hot dogs are ideal way to start cooking in solar ovens. You can watch things cook through the clear plastic top. o 9 Once you get the solar oven bug, you will want to move on to more substantial models. There are many forms of solar ovens and solar cookers. Many books are available on the subject. Some links to solar cooking books and books on making solar ovens and solar cookers have been listed in the resource section below. Read more: How to Make Solar Ovens from a Pizza Box | eHow http://www.ehow.com/how_4850541_solar-ovens-pizza-box.html#ixzz2WIrO4UGl