Ask the Expert: Basin Electric's manager of alternative technologies Ron Rebenitsch talks about the workings of recovered energy generation, also known as waste heat. Transcription: "First of all, you start off with an industrial process that has an exhaust heat, or a waste heat. In this particular case, we have a large gas pipeline that is using jet engines to run a compressor. The compressor moves the gas through the pipeline. Now, this jet engine or combustion turbine, exhausts heat at a temperature of somewhere around 900 degrees Fahrenheit, out the tailpipe. What we're doing is capturing that heat using a heat exchanger. That heat is then transferred to the Ormat facilities using a thermal oil. The thermal oil circulates through the heat exchangers and transfers the heat from the heat exchangers then to the Ormat facilities. The Ormat facilities then use a working fluid that expands, much like water expands to make steam, to drive a turbine. The waste heat that we recapture enables us to produce over 5.5 megawatts during normal operation. This does not use any additional fuel. We're simply capturing the waste heat that would've gone into the atmosphere anyway." www.basinelectric.com http
Keywords: Basin, Electric, Power, Cooperative, co-op, recovered, energy, generation, waste, heat, natural, gas, Northern, Border, Pipeline, Ormat, Technologies, OREG2
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