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Forums
Engineering
General Engineering
Use of a Water-Cooled Diesel Generator as an Off-Grid CHP System
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[QUOTE="essenmein, post: 6185504, member: 647751"] Heh, I've often thought about this exact thing. We heat with oil and in the winter months my mind wonders and the idea of using a diesel to both generate electricity and use the waste heat for the house/hotwater crossed my mind more than once. The only thing I can think of as a negative, assuming you can deal with the noise and vibration, is much higher maintenance cost. I think efficiency wise, if you recover much of the exhaust heat to use as low grade heat (eg pool), you should be about to get the same as a furnace (80-90%). Just as an example the small diesel I have here as a generator (unfortunately air cooled...), wants new engine oil every 50hrs of running, fine for back up and intermittent use, but new oil every two days would get tiresome for full time use. Basically a diesel is far more complicated than an oil burner and that will reflect in the maintenance cost and effort, depending on how reliable the power has to be, you may need two units to allow one to be down for maintenance while the other is running. [/QUOTE]
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Use of a Water-Cooled Diesel Generator as an Off-Grid CHP System
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