Technoeconomic Design of a Micro Gas-turbine for a Solar Dish System

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

doi:10.1016/j.egypro.2015.03.182

Cited by 24 publications

(5 citation statements)

References 7 publications

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“…The nominal MGT required input thermal power, WF maximum temperature, mass flow rate, and compressor pressure ratio need to be fixed by a preliminary cycle analysis, and, consequently, the receiver can be designed accordingly. For the present study, according to (Ragnolo et al, 2015), the parameters reported in Table 1, have been taken into consideration.…”

Section: Design Methodologymentioning

confidence: 99%

“…In this context, Dish-Micro Gas Turbines (MGTs) could be an up-and-coming technology for the small scale electricity generation. It seems to have advantages over the existing SS-CSPPs technologies in terms of performance and economic point of view (Ragnolo et al, 2015;Semprini et al, 2016). The power block of a Dish-MGT consists of a compressor, a recuperator, a high-temperature solar receiver which replaces the combustion chamber and an expander connected with the generator.…”

Section: Introductionmentioning

confidence: 99%

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Design of high-temperature solar receiver integrated with short-term thermal storage for Dish-Micro Gas Turbine systems

2019

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Section: Design Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of high-temperature solar receiver integrated with short-term thermal storage for Dish-Micro Gas Turbine systems

2019

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“…Assembling a wide variety of information sources including literature and direct personal communications, specific cost functions were determined to calculate the final purchasing costs of each element, based on the size and operating conditions. This hybrid solar power plant with a specific HSRC is still not currently marketed; however, to draw price comparisons, a prototype of an integrated combustion chamber and mGT based on Ragnolo et al [36,37] was employed. Many factors will affect the final purchasing costs such as the number of units ordered or the state of the market.…”

Section: Numerical Data For Computations and Validationmentioning

confidence: 99%

Thermodynamic and Cost Analysis of a Solar Dish Power Plant in Spain Hybridized with a Micro-Gas Turbine

et al. 2020

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Small-scale hybrid parabolic dish concentrated solar power systems are a promising option to obtain distributed electricity. During the day, solar energy is used to produce electricity, and the absence of sunlight can be overwhelmed with fuel combustion. This study presents a thermo-economic survey for a hybridized power plant in different regions of Spain, considering the local climatic conditions. The developed model considers the instant solar irradiance and ambient temperature dynamically, providing an estimation of the power output, the associated fuel consumption, and the most relevant pollutant emissions linked to combustion. Hybrid and combustion-only operating modes at selected geographical locations in Spain (with different latitudes, mean solar irradiances, and meteorological conditions) are analyzed. The levelized cost of electricity indicator is estimated as a function of investment, interest rate, maintenance, and fuel consumption actual costs in Spain. Values of about 124 €/MWhe are feasible. Fuel consumption and emissions in hybrid operation can be reduced above 30% with respect to those of the same turbine working in a pure combustion mode. This model shows the potential of hybrid solar dishes to become cost-competitive against non-renewable technologies from the point of view of costs and reduction in gas emission levels in regions with high solar radiation and low water resources.

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“…In addition to the receiver design, the combustor design in solar-heated gas turbines is also important, as conventional combustors have not been designed to accept high temperature inlet conditions [64] and rigorous modeling of the combustor via computational fluid dynamics (CFD) or other methods can be beneficial [65,66]. In a similar work, a pressurized, dish-based solar receiver with a micro gas turbine studied by Ragnolo et al predicted an overall efficiency of 29.6% [67]. The efficiency of solar-heated simple cycle gas turbines can also be increased with heat recuperation where the waste heat from the flue gas is used to pre-heat the air prior to entering the solar heater section [68].…”

Section: Solar-aided Gas Turbinesmentioning

confidence: 99%

Hybrid concentrated solar thermal power systems: A review

Powell

Rashid

Ellingwood

et al. 2017

Renewable and Sustainable Energy Reviews

192

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Concentrated solar power (CSP), or solar thermal power, is an ideal technology to hybridize with other energy technologies for power generation. CSP shares technology with conventional power generation and can be readily integrated with other energy types into a synergistic system, which has many potential benefits including increased dispatchability and reliability, improved efficiency, reduced capital costs through equipment sharing, and the opportunity for flexible operation by alternating between energy sources, which can lead to improved overall efficiency through synergy of the different energy sources. Another advantage of CSP technology is the ability to readily store via thermal energy storage (TES), making the intermittent solar resource dispatchable. A review of CSP hybridization strategies with coal, natural gas, biofuels, geothermal, photovoltaic (PV), and wind is given. An overview of different configurations for hybridizing CSP with these other energy sources is also provided. Hybridized CSP plants present different types and levels of synergy, depending on the hybrid energy source, the location of the plant, the CSP technology used, and the plant configuration. Coal, natural gas, and biofuel hybrids with CSP present many opportunities to inject solar heat at various temperatures. These combustible fuels provide reliability, dispatchability, and flexibility but are not entirely renewable solutions (with the exception of biofuels). Geothermal, wind, and PV hybrid designs with CSP can be entirely renewable, but lack some of the benefits of hydrocarbon fuels. Effective geothermal-CSP hybrid designs require low temperature operation where efficiency is limited by the power cycle. Wind-CSP and PVT (photovoltaic/thermal) lack dispatchability, but have other advantages. The pursuit of ideal CSP hybrid systems is an important research topic as it allows for further development of CSP technologies while providing an immediate solution that increases the use of solar power.

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Technoeconomic Design of a Micro Gas-turbine for a Solar Dish System

Cited by 24 publications

References 7 publications

Design of high-temperature solar receiver integrated with short-term thermal storage for Dish-Micro Gas Turbine systems

Design of high-temperature solar receiver integrated with short-term thermal storage for Dish-Micro Gas Turbine systems

Thermodynamic and Cost Analysis of a Solar Dish Power Plant in Spain Hybridized with a Micro-Gas Turbine

Hybrid concentrated solar thermal power systems: A review

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