Hybrid solar micro gas-turbines are a promising technology for supplying controllable low-carbon electricity in off-grid regions. A thermoeconomic model of three different hybrid micro gas-turbine power plant layouts has been developed, allowing their environmental and economic performance to be analyzed. In terms of receiver design, it was shown that the pressure drop is a key criterion. However, for recuperated layouts, the combined pressure drop of the recuperator and receiver is more important. In terms of both electricity costs and carbon emissions, the internally-fired recuperated micro gas-turbine was shown to be the most promising solution of the three configurations evaluated. Compared to competing diesel generators, the electricity costs from hybrid solar units are between 10% and 43% lower, while specific CO2 emissions are reduced by 20–35%.
Micro Gas-Turbine Design for Small-Scale Hybrid Solar Power Plants
Contributed by the Power Division of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received July 9, 2013; final manuscript received July 18, 2013; published online September 17, 2013. Editor: David Wisler.
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Aichmayer, L., Spelling, J., Laumert, B., and Fransson, T. (September 17, 2013). "Micro Gas-Turbine Design for Small-Scale Hybrid Solar Power Plants." ASME. J. Eng. Gas Turbines Power. November 2013; 135(11): 113001. https://doi.org/10.1115/1.4025077
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