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Hybrid Smart Kitchen

UN SDG Category : Responsible Consumption and Production
Innovator : G.kaushik, Hari kishore, N.Madhumithaa, S.janani
Project Guide: Anbarasan.P
Institution : St.Joseph's College of Engineering

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Problem Statement
Liquid Petroleum Gas is extensively used in domestic as well as industrial cooking. When it comes to cooking, a considerable amount of organic waste is being produced which is highly exhaustible. Our team’s objective is to create an eco-friendly kitchen which consumes organic waste products and converts it to energy, in order to conserve Liquefied Petroleum Gas from up to 50% to 70% lesser than a normal kitchen.

Current scenario: 76 % of Indian household as well as domestic household depends on Liquid Petroleum Gas (LPG) for varied purposes. LPG is obtained from petrol (a by-product of coal). Coal is obtained from the earth's crust. Currently there is a certain amount of coal available in the earth’s crust to provide LPG for few years. But after a decade, there will be no availability of coal in earth’s crust. By that time there will be no source to create LPG. In order to beware and overcome this situation, our team has an idea of making smart and environmental friendly low LPG consuming HYBRID KITCHEN. Our solution for the problem: The solution would possibly be to extract methane gas from organic waste and combine the methane gas with LPG for cooking. By using this technique we can reduce 50 percent of the LPG consumption in cooking. Initially this technique might give a slow result but after 3 months of usage we can get the best result from it. We, Glorifying SWATCH BHAARATH still dump mountains of garbage across barren lands. This will not make INDIA clean! Instead, we can make energy through this organic waste that is produced through garbage consumption.

The biogas plant is the best option for households having feed material to become self-dependent for cooking gas and high organical enriched bio-manure. It provides clean gaseous fuel for cooking. From the economic perspective, the spent slurry can supplement chemical fertilizers, improve soil, and boost agricultural production. Livestock and biomass production also experience a boost as integrated farming system is adopted. From the environmental perspective, the technology can mitigate the problems of indoor air pollution, and also reduce soil pollution due to the use of excessive chemical fertilizers and water pollution due to organic waste disposal. The use of biogas for cooking can drastically reduce the depletion of natural resources like forests, which are otherwise the primary source of energy in rural areas.

Chemical composition of bio gas: 45-65% of methane (CH4) 30-40% of carbon- di-oxide (CO2) 0-5% of nitrogen (N2) 0-1% of ammonia (NH3) 0-10% of moisture (H2O) 0-2% of oxygen (O2) 0-1% of hydrogen (H2) Biogas is nothing but a mixture of methane gas(CH4) CH4 + 2(O2) - - - - -> CO2 + H2O When methane is burnt, it reacts with two oxygen molecule and gives out carbon-di-oxide and water Excessive energy is released during this reaction when CO2 and water are created which is significantly more than the amount of energy required to break the methane molecule This excessive energy will act as heat energy and further it will be used for cooking purpose or to generate electricity Calculation: ● From 1 ton(1000kgs) of organic waste we can create 40kgs of Biogas (2 LPG cylinders) ● For 100kg of organic waste: [Organic waste (kg) ÷1000]×40 = required biogas (kg) [100kg÷1000]×40 = 4kg of Biogas (kg) ● approximately per day 1.5kg to 2kg of organic wastes will be produced: ● For 1 kg of organic waste: [1÷1000]×40 = 40grms/day ● For 2kg of organic waste: [2÷1000]×40 = 80grams/day ● MONTHLY CALCULATION : ● For 1kg of organic waste per day: ([1×30] ÷1000)×40 = 1.2grams/month ● For 2kg of organic waste per day: ([2×30] ÷1000)×40 = 2. 4kg/month Percentage of reduction of usage of LPG while using biogas: ● 20kg of LPG is used for 2 month usage for cooking ● Per month 10 kg of LPG is used ● Per day 300gram (approx) LPG will be used ● While implementing bio gas we use LPG for extra 20 to 30 days/2months(approx) ● Per year 3 months of usage of LPG can be reduced. ● Thus, this can reduce LPG usage 45%-50% per year Source value are from: Dr. Palaash Tarapore, Eco scientist at Atmospower India.

India's Sustainable Development
Presently the world population is more than 7.3 billion and as per the United Nations estimates it will increase to 8 billion by 2025. To meet future energy demand it has recognized by scientist that something has to be done for the large global population of about 2 billion people live below the poverty line, whose needs have to be addressed on priority basis, so that they are not marginalized further due to globalization of economy and unequal sharing of resources and wealth. Biogas is important source of green and clean energy.Organic materials such as animal dung, kitchen waste dead plants etc. could be used as gaseous fuel. Methane and carbon dioxide are two gases which provide good caloric values to biogas when used as fuel. Biogas produced from the anaerobic disintegration of manure in small- pit is called gobar gas; it is estimated that over two million households in India will be able to use gobar gas due easily availability of cattle dung. Biogas plant help in get rid of organic waste and cattle dung in safe manner otherwise which could have adverse impact to environment by releasing methane directly to environment and spread diseases. Biogas plant is very simple and environment friendly sustainable source of energy because more people and more cattle more waste and more dung available to use respectively.By-product of biogas plant can be used as compost in agriculture and gardening. For fuel in rural area people are dependent on forest which causes damage to forest. Implementation of biogas plant help in reducing pressure on forest for fuel wood and saving in cost as compared to the use of kerosene or liquidify petroleum gas (LPG) for cooking. For one household, biogas saves 100 kg of LPG or 275 litres of kerosene per year, which is equivalent to 400 to 800 kg CO2 per year. People in village could save around 3 tonnes of wood per year with the use of biogas this helps in reduction of 5 tonnes CO2 if burnt otherwise all these gases release to atmosphere and accelerate global warming. Waste generation is directly related with population growth and we need tangible solution to get ride off from generated waste with minimum impact to environment. Production of biogas from organic waste and cattle dung is the best sustainable source of energy.


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