May 08, 2016 one easy solution would be to build a pot in pot refrigerator. That way, if i didnt remember it my husband could possibly put it in after i left, or when he stopped in for lunch. Cook on low setting for 8 hours or until veggies are soft. A zeer pot is an evaporative cooler used in rural africa and the middle east to keep vegetables fresh. One simple solution is to build your own pot in pot fridge, using basic pots, sand and water. A zeer pot refrigerator, also known as a potinpot refrigerator, or simple a zeer in arabic is a type of clay pot evaporative cooling device that provides a way to keep vegetables fresh without the use of electricity. Fridge for the poor 5 market and location context the administrative headquarters of mobah rural horizons, producer of the pot in pot products which is widely termed as the fridge for the poor or desert refrigerators is based in kano, a. It needs no electricity it is made by putting a clay pot inside a larger clay pot with wet sand in between the pots and a wet cloth on top. Appliance watts hoursmo kwhmo air conditi oner room 6,000 btu 750 120 730 90 548. It uses a porous outer clay pot lined with wet sand containing an inner pot which can be glazed to prevent penetration by the liquid within which the food is placed. Sign up to discover your next favorite restaurant, recipe, or cookbook in the largest community of knowledgeable food enthusiasts. Heat and mass transfer analysis of a claypot refrigerator article pdf available in international journal of heat and mass transfer 55s 1516. Experimental study of alternatives to sand in zeer pot refrigeration technique article pdf available may 2015 with 2,671 reads how we measure reads.
The potinpot refrigerator, also known as a zeer in arabic, is a food cooling device. A dilution refrigerator, at first blush, appears to. Pdf experimental study of alternatives to sand in zeer. If you dont already know, a zeer pot is a type of evaporative refrigerator. Making a pot in a pot refrigerator the sustainability box.
A dilution refrigerator, at first blush, appears to be a horribly, intricately, awfully. We build a theoretical model to analyze the cooling process and do contrast experiments to find a best combination of conditions to optimize the cooling effect. Hipot setup and testing for hipotronics hd103 and hd106 acdc voltage testers overview to ensure your own personal safety and the safety of your coworkers, and to be sure that our displays are suitably tested to ensure customer safety, it is essential that you understand the proper setup and use of our hipot testers. The refrigerator works on the evaporative cooling principle. The potinpot refrigerator also known as the zeer was invented in 1995 by nigerian teacher mohammed bah abba. When we replicated the experiment we used unglazed clay flower pots. Pdf on may 5, 2015, prabodh sai dutt and others published experimental study of alternatives to sand in zeer pot refrigeration technique. One easy solution would be to build a pot in pot refrigerator. Clay pot refrigerator is a pottery article to cool vegetables and keep them safe and fresh without shrinkage. Zeer potinpot refrigerator higher humidity results flower. Germs in the recalled food could spread to drawers or shelves in your refrigerator. One solution to this challenge is the zeer pot a very clever fridge made using clay, water and sand.
Plug the hole in the bottom of each pot with a bit of clay or duct tape. Heat and mass transfer analysis of a claypot refrigerator. Diy potinpot refrigerator cement flower pots, concrete. Last night i tossed everything i wanted to put in the crock pot into a plastic bag and put that in the fridge. Simply put in all the ingredients, select the right.
It consists of two earthenware pots of different sizes, placed. Potinpot refrigerator is a refrigeration device which uses evaporative cooling and works without consuming electricity. Pdf experimental comparative analysis of clay pot refrigeration. The pot in pot cooler potting cypripediums for a hot climate for those of us who simply wont be stopped from having plants we shouldnt be growing given the local climate, the pot in pot cooler method is a perfect solution. The commercial worktop refrigerators we carry are made from highquality stainless steel, which offers unmatched durability and stability. Oct 05, 2015 to ensure your food is cooked safely, the contents of the slow cooker all need to reach 140f within two hours of operation. Clay pot refrigerators by breslyn, wayne the science. Common household appliance energy use listed below are some common appliances, their typical or average wattage and an estimated kilowatt. Add sand to the bottom of the larger pot until the small pot can sit inside with its rim flush with the outer pot. The simple clay pot refrigerator is ideally suited for preserving vegetarian foods in hot and dry climates. They consist of two terra cotta pots, one nested inside the other, with the gap between them. The items in the inner pot are covered with a damp cloth. Within the document, pages 15 to 19 outline in detail how to make a potinpot refrigerator.
How to store leftovers in metal pots healthy living. Simulation of pot in pot refrigerator umesh c1, dr. Pdf heat and mass transfer analysis of evaporative cooling process in a potin pot cooling system is done based on reynolds flow hypotheses. It is a device that keeps being rediscovered even though various versions of the device have been used for thousands of years. Pot coolers are produced by the potters clusters, like village potters association in different regions of india. Fill the open space between the two pots with sand, packing it down as you. The pots are simple devices that can be produced locally by artisans, and made from local clays. Nov 02, 2019 how to make a pot in a pot refrigerator. Hitchhikers guide to the dilution refrigerator nathaniel craig and ted lester, revised 21 august 2004 introduction dont panic. A pot in pot refrigerator, clay pot cooler or zeer arabic. As water from the wet sand slowly diffuses through the porous outer pot, the water evaporates into the drier outside air and cools the system. Zeer potinpot refrigerator higher humidity results this is a design dating back to as early as 2500 b.
This would seal the water inside the pot and prevent it from evaporating. I am going to call them evaporative refrigerators since they operate by evaporation and are used like a refrigerator. Potinpot refrigerator simple english wikipedia, the free. Thus, by trying to optimize this setup by manipulating certain variables covered in conclusion, the cost can be further brought down. You can decrease the number of servings by splitting each recipe into two freezer bags and cooking in a smaller slow cooker 24 quarts. You can also find products with great features like selfcleaning condensers, led lighting, and extra deep refrigerator cavities, all. Pdf heat and mass transfer analysis of a potinpot refrigerator. They may notice that the temperature in the control pot has dropped a small amount. This is leaf, a sleek minifridge that might be the future of. That way, if i didnt remember it my husband could possibly put. The midea slow cooker is an affordable and ideal way to cook the food that requires long and slow simmering.
Its inspiration came from a growing need to keep food fresh longer in the small communities of thirdworld countries that have little to no electricity. Cooling through evaporation is an ancient effective method of lowering temperature. Students will see a greater change in temperatures if they do not uncover the pots during the wait period. Time after setting up the pot in pot refrigerator temperature inside the pot degrees celsius. Its not the same as having a fridge, but given it doesnt require electricity, this could be an excellent backup for people looking to. Make sure that the pan will not hide any other important consumables within your refrigerator. The evaporation of the outer liquid draws heat from the inner pot. I am going to call them evaporative refrigerators since they operate by evaporation and are used like a. Clear space for the metal pan in your refrigerator. Oct 02, 2011 zeer pot in pot refrigerator higher humidity results this is a design dating back to as early as 2500 b. When ready to cook, thaw in the refrigerator overnight and add to slow cooker with chicken broth. Fridge for the poor 2 executive summary mobah rural horizons, producer of the potinpot products which is widely termed as the fridge for the poor is based in kano, nigeria. The newer slow cookers on the market do this fairly reliably because the sides and the bottom both have heating elements. Azeer pot, also known as a pot in pot refrigerator, is a simple system composed of two terracota pots, some sand and some water that can maintain a cool temperature to preserver fruits and veggies.
Cooling through evaporation is an ancient method of lowering temperature. A potinpot refrigerator, clay pot cooler or zeer arabic. Step by step instructions on how to make a pot in pot a. The remainder of the document discusses other clay based technologies that may be of interest. Heat transfer and evaporative cooling in the function of potinpot. In this solution we estimate the cooling effect by the temperature drop as well as the cooling time. A zeer pot refrigerator, also known as a pot in pot refrigerator, or simple a zeer in arabic is a type of clay pot evaporative cooling device that provides a way to keep vegetables fresh without the use of electricity. Busting myths about the zeer pot rebuilding civilization. A potinpot cooler is an affordable electricityfree refrigerator which uses the latent heat of vaporization of water to maintain a low temperature inside an inner.
A practical zeer pot evaporative cooler nonelectrical refrigerator. Apr 23, 2012 the pot in pot cooler potting cypripediums for a hot climate for those of us who simply wont be stopped from having plants we shouldnt be growing given the local climate, the pot in pot cooler method is a perfect solution. Potcoolers are produced by the potters clusters, like village potters association in different regions of india. The clay pot cooler an appropriate cooling technology pdf. This time the inside of the pot in pot was definitely cooler than the air outside. If youre in a hurry or if a big holiday meal has used up your usual storage containers, you can store your food in a stainless steel pot. One simple solution is to build your own potinpot fridge, using basic pots, sand and water. There is also a simple formula for calculating operating costs below. This time the inside of the potinpot was definitely cooler than the air outside. The pot in pot cooler potting cypripediums for a hot. The simple clay pot refrigeration is simply suited for preserving the vegetarian food in. Diabetic crockpot freezer meals the family freezer. Pdf heat and mass transfer analysis of a claypot refrigerator.
If it is a large metal pan, make sure that you put it as far back into your refrigerator as possible in order to avoid blocking other food items from your view. Mobah rural horizons, producer of the potinpot products which is widely termed as the fridge for the poor is based in kano, nigeria. The pot is constructed by placing a clay pot inside a larger clay pot with wet sand between to keep both pots moist. You plant your weed and put it in leaf, which is like a minifridge, if your minifridge was a robot that took care of growing. Time after setting up the potinpot refrigerator temperature inside the pot degrees celsius. According to az central, however, food stored in stainless steel cookware goes bad faster than food stored in more airtight.
The simple claypot refrigerator is ideally suited for preserving vegetarian foods in hot and dry climates. The zeer pot page 4 limitations of device beyond the limitations of the required climatic conditions for the potinpot refrigerator to be successful, there is also a need for a continuous supply of water. Using simple pots, water and sand together, this type of refrigerator is currently being used by tonnes of farmers in warmer climates who have the need to keep their food for a long time while keeping the insect away. Pdf thermal analysis of clay pot in pot refrigerator. The potinpot refrigerator more information about the potinpot cooling system. Most meals will last at least three months in a standard refrigerator freezer combo. Oct 29, 2019 the instant pot pressure cooks, slow cooks, sears, sautes, steams, cooks rice, cultures yogurt, makes wine, does my taxes i wish, and more.
Pdf heat and mass transfer analysis of evaporative cooling process in a potinpot cooling system is done based on reynolds flow hypotheses. In this paper, steadystate performance of the refrigerator is analysed using reynolds flow model of convective heatmass transfer. Claypotrefrigerator is a pottery article to cool vegetables and keep them safe and fresh without shrinkage. The zeer pot page 4 limitations of device beyond the limitations of the required climatic conditions for the pot in pot refrigerator to be successful, there is also a need for a continuous supply of water. In a community or situation without electricity, storage of food longterm can be tricky. Pdf refrigeration using clay pots has gained prominence in many countries today. Sign up to discover your next favorite restaurant, recipe, or cookbook in the largest community of. Most meals will last at least three months in a standard refrigeratorfreezer combo. Within the document, pages 15 to 19 outline in detail how to make a pot in pot refrigerator. As water from the wet sand slowly diffuses through the porous outer pot, the water evaporates into the.
A potinpot refrigerator will cool food down by evaporative cooling. From nigeria the pot in pot a refrigerator that runs without electricity designed in 1995 by mohammed bah abba, a professor in nigeria, the pot in pot cooling system helps farmers by reducing food spoilage and waste, increasing their income and limiting the health hazards of decaying foods. More information about the potinpot cooling system. Removing the cloth is the equivalent of leaving the refrigerator door open. Pdf experimental study of alternatives to sand in zeer pot. Step by step instructions on how to make a potinpot a.
As a general rule, its safest to store food in glass or plastic containers. Obviously thats not enough, so in this weeks episode of hit or myth, we set out to test whether or not you can use your instant pot as a smoker. Serving size is included in the nutritional information labels. This soup tastes great with a piece of crusty bread on the side. Dec 04, 2009 stainless steel cookware in refrigerator. For many regions, water may be prioritized for other purposes making the it difficult for communities to adopt the technology. A pot in pot refrigerator will cool food down by evaporative cooling.