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Modular Hybridization of Solar Thermal Power Plants For Developing Nations
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology. (Solar Group)
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The current energy scenario in the developing nations with abundant sun resource (e.g. southern Mediterranean countries of Europe, Middle-East & North Africa) relies mainly on fossil fuels to supply the increasing energy demand. Although this long adopted pattern ensures electricity availability on demand at all times through the least cost proven technology, it is highly unsustainable due to its drastic impacts on depletion of resources, environmental emissions and electricity prices. Solar thermal Hybrid power plants among all other renewable energy technologies have the potential of replacing the central utility model of conventional power plants, the understood integration of solar thermal technologies into existing conventional power plants shows the opportunity of combining low cost reliable power and Carbon emission reduction.

A literature review on the current concentrating solar power (CSP) technologies and their suitability for integration into conventional power cycles was concluded, the best option was found be in the so called Integrated solar combined cycle systems (ISCCS); the plant is built and operated like a normal combined cycle, with a solar circuit consisting of central tower receiver and heliostat field adding heat to the bottoming Rankine cycle.

A complete model of the cycle was developed in TRNSYS simulation software and Matlab environment, yearly satellite solar insolation data was used to study the effect of integrating solar power to the cycle throw-out the year. A multi objective thermo economic optimization analysis was conducted in order to identify a set of optimum design options. The optimization has shown that the efficiency of the combined cycle can be increased resulting in a Levelized electricity cost in the range of 10 -14 USDcts /Kwhe. The limit of annual solar share realized was found to be around 7 %

The results of the study indicate that ISCCS offers advantages of higher efficiency, low cost reliable power and on the same time sends a green message by reducing the environmental impacts in our existing power plant systems.

Place, publisher, year, edition, pages
Keyword [en]
Solar, Energy, CSP
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-104456OAI: diva2:564738
Subject / course
Energy Technology
Educational program
Master of Science - Sustainable Energy Engineering
2012-11-26, M274, BRINELLVÄGEN 68, Stockholm, 11:00 (English)
Available from: 2013-06-24 Created: 2012-11-03 Last updated: 2013-06-24Bibliographically approved

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Darwish__Mazen__EGI-2012-83MSC EKV912(3098 kB)2738 downloads
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