Featured Humanitarian Open Tool: Light from Stoves

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One of the most promising methods for generating light from stoves is through thermoelectric power generation. A prototype generator has been developed that produces approximately five watts of power, and is projected to cost around $30 in large quantity. An in-depth analysis was performed on each component to maximize the system efficiency and reduce cost. The selection process for the thermoelectric module, the heating and cooling fins, and the fan is outlined in detail. Computational and analytical models have been developed to predict the performance of the components individually, and as a system. Initial testing and calculations show that the thermoelectric generator is a feasible and relatively cheap solution to a large problem. Some portable models have also proven to be effective when installed on improved home cookstoves, or rocket stoves.

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