Post on 25-Feb-2016
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DESCRIPTIONComposting Energy. Methane Power. Flow Chart. We will examine how our project works through the use of the flow chart, from bottom up. . Individual Choice. What are we trying to accomplish? Finding a renewable and productive source of energy. - PowerPoint PPT Presentation
Composting EnergyMethane Power1Flow ChartWe will examine how our project works through the use of the flow chart, from bottom up.
2Individual ChoiceWhat are we trying to accomplish?Finding a renewable and productive source of energy. Finding more ways to be self sustaining and use less power from the grid. Making something harmful to the environment, into something useful.Supply low income or low budget households with a unlimited valuable source of hot water. 3PopulationWho will be using this project?
In the USAThis product would mostly market to rural area households where they would have enough property. People with crops or gardens that would like to use natural compost for fertilization. Large households that require more hot water than a regular water tank can hold. Outside the USAWe could also market this product to rural households within other countries that are trying to find ways to live sustainably or self sufficiently. The Ciudad de Refugio in Rosarito, for example, is an orphanage just outside of Tijuana that has been growing into a self-sufficient shelter for children and teenaged boys and girls. 4PopulationCiudad de Refugio. 5HouseOur Project Design
Our project will be the combination of a tankless water heater and a methane digester. The methane digester captures methane by combining water and compostable products in a tank. The water and waste will be mixed to make a slurry and as the products break down in the water, methane will bubble up to the top of the tank. The methane will then be captured into a hose and connected directly to the water heater.
Our DesignThe hot water tap is turned on.Water enters the heater.The water flow sensor detects the water flow.The computer automatically ignites the burner.Water circulates through the heat exchanger.The heat exchanger heats the water to the designated temperature.When the tap is turned off the unit shuts down. 8Life Cycle Costs 9Life Cycle Costs10Life Cycle Costs11Life Cycle Costs12Life Cycle Costs13Life Cycle Costs14
EnergyWhat is the energy source this product creates?
Methane (CH4) is a fossil fuel converted into energy by burning. Methane is also a greenhouse gas and can be harmful to the environment if there is too much methane in the atmosphere. Compared to other fossil fuels, burning methane produces lesscarbon dioxidefor each unit of heat released. Methane'sheat of combustionis lower than any other fossil fuel but the ratio of the heat of combustion to the molecular mass shows that methane produces more heat per mass unit than other complex fossil fuels. 15What are the consequences of making a product like this?ExternalitiesPositive ConsequencesThe tank uses waste that would otherwise be useless, and creates useful energy that would lower the power consumption for the whole household. The overflow from the tank can be used as a natural fertilizer that can be used to fertilize plants rather than using harmful chemical fertilizers or pesticides.
Negative ConsequencesTakes more work to create and maintain the flow of energy.Must maintain the tank by emptying the overflow and making sure the water and compost mixture is mixed regularly. This is not a very practical product for a large percentage of the population, especially intercity populations. 16Our Five ElementsLets take a look at each of the five elements and see what roles they have to play in our project.
17AirCapturing the methane cuts down on greenhouse effect in the atmosphere. Burning methane releases carbon dioxide and water which is less harmful to the atmosphere. Chemical insecticides or fertilizer production can also be harmful to the air. If you reduce electrical energy needs, air pollution caused by energy production will also be reduced. Coal and Oil and other fossil fuels when burned release harmful chemicals into the air, Methane does not. Oxidized nitrogen, a byproduct of synthetic fertilizers, also increases smog, which may be related to higher incidence of respiratory illness and asthma.18Earth
Capturing methane cuts down on greenhouse effect which affects soil. Composting and using overflow from tank is a good natural fertilizer. Less dependence on mining, drilling, and damming for power.
19FireThe fire is ignited in the burner by electric current when the water tap is turned on. Fire from the burning of the methane heats the heat exchanger.The heat exchanger uses coils to transfer the heat from the fire to water as is flows through. The fire is the energy transformation from methane gas to the water. No standby heat loss that occurs with tank water heaters.
20MetalAny metals used for constructing purposes will come from recycled metal. Construction does not require the use of large machinery and can all be constructed by manpower. The tankless water heater alone cuts down on the energy it takes to keep water heated, and using methane gas as the energy source cuts down on grid power which comes from the burning of coal and fossil fuels, or the use of huge hydro-turbines constructed from metal.
21WaterWater mixed with the compost can be used as natural fertilizer for plants. Cold water coils through the heat exchanger and the heat exchanger warms the water for use. Tankless heater only heats water when needed, rather than continually heating a tank of water. Never run out of hot water. 22ConclusionOur Methane Digester creates usable energy. The design of our Methane Digester is self-sustaining and uses recyclable materials and waste, using less power from the grid. Methane gas is a greenhouse gas, which can be harmful to the environment, but burning it as power makes it into something useful.Our project can create a positive affect by supplying low income or low budget households with a unlimited valuable source of hot water.