Integrated Design of a Hybrid Gas Turbine-receiver Unit for a Solar Dish System

Wang, Wujun; Ragnolo, Gianmarco; Aichmayer, Lukas; Strand, Torsten; Laumert, Björn

doi:10.1016/j.egypro.2015.03.067

Cited by 33 publications

(15 citation statements)

References 12 publications

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“…The Sweden Royal Institute of Technology (KTH) designed a gas turbine-receiver unit, in which the inlet air was first compressed by a compressor, preheated by a regenerator, and then heated by a solar receiver. The air outlet temperature reached 950°C [11]. Abengoa Solar developed a volumetric solar air receiver.…”

Section: Introductionmentioning

confidence: 99%

Simulation and experimental study of an air tube-cavity solar receiver

Qiu

Liang

et al. 2015

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 99%

Simulation and experimental study of an air tube-cavity solar receiver

Qiu

Liang

et al. 2015

Energy Conversion and Management

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“…Micro gas turbine (MGT)-dish will show some advantages over both systems [3]. The hybrid system, where solar energy comes with fuel reserves (such as local biodiesel), allows MGT solar to supply controlled power on demand to households, without the need for investment in expensive batteries [4][5][6]. Other than that, the thermal energy contained in the MGT exhaust also provides the opportunity to provide additional services, like heating, cooling, and water purification through the use of poly-generation technology [2,7].…”

Section: Introductionmentioning

confidence: 99%

“…Micro turbine offers a lot of advantages over other technologies, such as long lifetime (+45,000 hours), small size, lightweight, fast response, few moving parts, lower emission, higher efficiency, higher flexibility, lower electricity costs, and opportunity to utilize waste fuel with less noise than reciprocating engines [4,12]. The micro turbine is expected to take a significant share in the distributed generation market because of its relatively small size, low capital costs, low operation and maintenance costs.…”

Section: Introductionmentioning

confidence: 99%

Modelling of solar micro gas turbine for parabolic dish based controller application

et al. 2020

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Dish-Stirling unit and photovoltaic panels are the premier technologies available to generate off-grid solar energy. The major issue for both systems is in terms of producing output power. Air-Brayton cycle was utilized as an engine by converting the thermal energy to electricity. Micro gas turbine (MGT) has been recognized as one of the viable alternatives compared to Stirling engines, where it represents a state-of-art parabolic dish engine specifically in turbine gas technology. Hence, the micro gas turbine is a technology that is capable of controlling low carbon while providing electricity in off-grid regions. MGT uses any gas as its input like natural gas, biogas and others. Micro gas turbine has advantages for its high expansion ratio and less moving components. Compared to competing for diesel generators, the electricity costs from hybrid solar units were reduced between 10% and 43%, whereas specific CO2 emissions reduced by 20-35%. MGT provides advantages over photovoltaic systems such as the inherent ability to hybridize the systems with hydrocarbon fuels to produce electricity around the clock, and the ability to operate more effectively in very hot climates with photovoltaic performance degradation over the lifetime of the system. Hybrid solar micro gas-turbines are cost-effective, eco-friendly and pollution free as they can work by burning any gas like natural gas, landfill gas and others. This paper presented the controls contained in the MGT-dish system consisted of temperature control, fuel flow control, speed and acceleration control. A conceptual design of the 25kW MGT-dish system was also covered.

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“…With the aforecited OMSoP project, the Royal Institute of Technology in Stockholm (KTH) tested two different solar receiver prototypes: a cavity volumetric pressurized receiver with foam absorber [18,19] and an impingement cavity receiver [20]. Aichmayer et al studied the integration of volumetric receivers in several applications such as solar systems for off-grid energy production [21] and polygeneration in rural areas [22], either in simple or combined cycle configuration [23], whilst Wang et al [24] studied the integrated dish-mGT design using solar systems with impingement receivers. These activities add to the past work with these systems for space, military and civil power applications: Kesseli et al calculated the performance of a micro turbine engine composed by stock turbocharger components in [25] while Dickey [26] presents the experimental performance of a Capstone micro turbine integrated with a field of heliostats.…”

Section: Introductionmentioning

confidence: 99%