• M.Kamakshi Kanchana

Only 33% households possess refrigerator in India. Many places in India experience summer day time temperatures between 37-47 degrees Celsius. The recommended storage temperatures for most of the medicines is around 25 degrees Celsius and vaccines and insulin have much lower storage requirements. Life-saving medicines getting spoilt or losing efficacy due to severe heat indoors can pose a grave threat to elderly and sick people who are dependent on medication. This paper proposes a very low-cost medicine storage device based on Semiconductor Peltier device. When there is no requirement to store medicines, it can be configured to work as a personal cooling fan to give relief against heat in small rooms. Peltier Effect was discovered in 1934, however commercial applications started in the last two decades after the availability of low-cost semiconductor-based Peltier devices. Peltier devices are extensively used in cooling computer microprocessor integrated circuits, space suits and automobiles. Portable DC refrigerators are available in the market. They are expensive and designed mostly for cooling beverages for camping enthusiasts. This paper proposes a low-cost Medicine storage box cum personal cooler based on currently available Semiconductor Peltier device and other electric components. Prototype is built and results are reported. Detailed design instructions are given so that it can be assembled by semi-skilled electricians and provide it as an essential household equipment. As it operates on 12 Volts, DC as well as 240 V 50 HZ supply, it can operate on any car battery or UPS back-up battery. For households that already have a refrigerator, it can work as a back-up device during natural calamities with electric power disruption and during travel. Interior designers can incorporate this device as an essential utility and make it part of modular kitchens and storage units.

Medicine storage Unit, Thermoelectric Refrigerator, Semiconductor Peltier Device, Medicine Storage Temperature, Medicine Storage during natural disasters

"Low-Cost Medicine Storage Unit using Semiconductor Thermoelectric Peltier Device", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 5, page no.i322-i328, May-2022, Available :http://www.jetir.org/papers/JETIR2205947.pdf

"Low-Cost Medicine Storage Unit using Semiconductor Thermoelectric Peltier Device", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 5, page no. ppi322-i328, May-2022, Available at : http://www.jetir.org/papers/JETIR2205947.pdf