Integration Between Gas Turbines and Concentrated Parabolic Trough Solar Power Plants

2012 ◽  
Author(s):  
Roberto Cipollone ◽  
Andrea Cinocca
Keyword(s):  
Gas Turbines ◽  
Power Plants ◽  
Solar Power ◽  
Electrical Energy ◽  
Energy Generation ◽  
Heat Transfer Fluid ◽  
Working Fluid ◽  
Fluid Temperature ◽  
Parabolic Trough ◽  
Solar Power Plants

Parabolic Trough Concentrating Solar Power plants (PT-CSP) technology has the capability to give, in the mean future, a strong contribution to the electrical energy generation. In the long term, inside a new framework of relationships concerning energy production, many aspects would justify a significant contribution to the phase out of fossil sources use. The paper concerns about a theoretical modeling aimed at improving the performances of CSP which approaches the energy generation from a system point of view. Thanks to it, the attention is focused on the use of gases as heat transfer fluid inside the solar receivers and on the possibility to use it as working fluid inside unconventional gas turbines for a direct electricity generation. The success of this concept is related to the possibility to increase the fluid temperature above the actual maximum values: this requires that the receiver efficiency has to be recalculated as a function of the fluid temperature. An innovative integration between the solar field and the gas turbine power plant, modified in order to maximize thermal energy conversion, is discussed.

scholarly journals The efficiency of steam production by the Parabolic Trough Collector PTC with the use of nanofluids in the region of Ouargla

2021 ◽  
Vol 1204 (1) ◽  
pp. 012005
Author(s):  
Intissar Achouri ◽  
Mouhamed Elbar Soudani ◽  
Tlili Salah
Keyword(s):  
Thermal Efficiency ◽  
Power Plants ◽  
Solar Power ◽  
Production Capacity ◽  
Fluid Temperature ◽  
Concentrated Solar Power ◽  
Parabolic Trough ◽  
Parabolic Trough Collector ◽  
Solar Power Plants ◽  
Concentrated Solar Power Plants

Abstract Concentrated solar power plants (CSP) contribute to global production (at present) with a capacity of 400 MW, and by 2020 they will reach approximately 20 GW, then nearly 800 GW by 2050, This will prevent the emission of 32 million tons of CO2 annually in 2020, and rise to 1.2 billion tons in 2050, according to the International Greenpeace “Solar Thermal Electricity” 2016 report. Among all the concentrated solar power (CSP) technology available to date, Parabolic Trough Collector (PTC) is the most promising, cost-effective, and efficient solution to generating electrical power, as PTC plants contribute in terms of global production capacity by 73.58% of the overall capacity of concentrated solar power plants (CSP). PTC stations in the production of electricity depend on the generation of hot and pressurized steam that rotates the turbines and to increase the effectiveness of PTC in the production of steam, we use in this study nanofluids by adding copper nanomaterials in different proportions to improve the Thermal efficiency of PTC. We also studied the effect of the width of the PTC slot on the fluid temperature. And from it on the amount of steam produced. The results of the study showed that the Thermal efficiency increases with the increase in the ratio of copper nanomaterials in the water, as the temperature of outlet water reaches 98°C, for the ratio of nanomaterials, 20%, in order to water flow 0.01 Kg/s and display the aperture 3.5 m.

A Numerical Model for Off-Design Performance Prediction of Parabolic Trough Based Solar Power Plants

2011 ◽  
Vol 134 (1) ◽  
Author(s):  
Giampaolo Manzolini ◽  
Andrea Giostri ◽  
Claudio Saccilotto ◽  
Paolo Silva ◽  
Ennio Macchi
Keyword(s):  
Numerical Model ◽  
Performance Prediction ◽  
Power Plants ◽  
Solar Power ◽  
Operating Conditions ◽  
Working Fluid ◽  
Design Calculation ◽  
Fluid Temperature ◽  
Parabolic Trough ◽  
Design Algorithm

This paper deals with the development and testing of an innovative code for the performance prediction of solar trough based concentrated solar power (CSP) plants in off-design conditions. Off-design calculation starts from data obtained through the on-design algorithm and considers steady-state situations. The model is implemented in flexible software, named patto (parabolic trough thermodynamic optimization): the optical-thermal collector model can simulate different types of parabolic trough systems in commerce, including a combination of various mirrors, receivers and supports. The code is also flexible in terms of working fluid, temperature and pressure range, and can also simulate direct steam generation (DSG) plants. Solar plant heat and mass balances and performance at off-design conditions are estimated by accounting for the constraints imposed by the available heat transfer areas in heat exchangers, as well as by the characteristic curve of the steam turbine. The numerical model can be used either for single calculation in a specific off-design condition or for complete year simulation, by generating energy balances with an hourly resolution. The model is tested with a view to real applications and reference values found in literature: results show an overall yearly efficiency of 14.8% versus the 15% encountered in the Nevada Solar One. Moreover, the capacity factor is 25%, i.e., equal to the value predicted by sam®. Code potential in the design process reveals two different aspects: it can be used not only to optimize plant components and layout in feasibility studies but also to select the best control strategy during individual operating conditions.

scholarly journals Optimal start-up operating strategies for gas-boosted parabolic trough solar power plants

Solar Energy ◽  
2018 ◽  
Vol 176 ◽  
pp. 589-603 ◽  
Author(s):  
Davide Ferruzza ◽  
Monika Topel ◽  
Björn Laumert ◽  
Fredrik Haglind
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Parabolic Trough ◽  
Start Up ◽  
Solar Power Plants ◽  
Operating Strategies

scholarly journals Conceptual Study of a Thermal Storage Module for Solar Power Plants with Parabolic Trough Concentrators

10.5772/54060 ◽  
2013 ◽  
Author(s):  
Valentina A. ◽  
Carmelo E. ◽  
Giuseppe M. ◽  
Rosa Di ◽  
Fabrizio Girardi ◽  
...  
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Thermal Storage ◽  
Parabolic Trough ◽  
Solar Power Plants ◽  
Conceptual Study

Pengembangan Sistem Pengaturan Suplai Beban (Ats) Pada Pembangkit Listrik Tenaga Hibrid Berbasiskan Mikrokontroler

Kilat ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 261-271
Author(s):  
Sugeng Purwanto
Keyword(s):  
Power Plant ◽  
Alternative Energy ◽  
Power Plants ◽  
Solar Power ◽  
Electrical Energy ◽  
Solar Power Plant ◽  
Solar Panels ◽  
Hybrid Power ◽  
Solar Power Plants ◽  
One Year

ABSTRACT Renewable energy is potential alternative energy to replace the central role of fossil energy which has been going on since the early 20th century. The solar power plant is alternative energy, especially for households and industry, and can be designed as a hybrid power plant consisting of solar panels, batteries, an automatic transfer switch (ATS), and a grid. This research will focus on developing ATS based on a microcontroller. It functions to regulate the load supply automatically from the three sources of electrical energy, like solar panels, batteries, and grid while the microcontroller functions to monitor the transfer of power from the solar power plant to grid and voltage movements in the system so that current and voltage data can be recorded from time to time to improve system reliability, effectiveness, and efficiency of the tool. ATS components consist of MCB, magnetic contactor, timer H3CR, relay, 2000VA inverter, solar charge controller 100A, NodeMCU ESP8266 IoT, and battery 12V 100AH. This research is conducted in one year to produce ATS based on a microcontroller that can automatically regulate the supply of loads from the three sources of electrical energy with a good level of efficiency and stability.  Keywords: solar power plants, hybrid power plants, an automatic transfer switch.  ABSTRAK Energi baru terbarukan merupakan energi alternatif yang potensial untuk menggantikan peran sentral dari energi fosil yang telah berlangsung sejak awal abad ke 20. PLTS merupakan salah satu energi alternatif penyedia energi listrik untuk rumah tangga dan industri serta dapat dirancang sebagai sistem pembangkit listrik tenaga hibrid (PLTH) yang terdiri dari panel surya, baterai, sistem pengaturan beban atau ATS (automatic transfer switch) dan jaringan PLN. Peneltian difokuskan pada pengembangan sistem ATS berbasiskan mikrokontroler. ATS berfungsi untuk mengatur suplai beban secara otomatis dari ketiga sumber energi listrik yaitu panel surya, baterai dan PLN sedangkan mikrokontroler berfungsi memonitor perpindahan daya dari PLTS ke sumber PLN dan pergerakan tegangan pada sistem sehingga dapat dilakukan pencatatan data arus dan tegangan dari waktu ke waktu sehingga dapat meningkatkan keandalan sistem, efektifitas dan efisiensi alat. Komponen ATS terdiri dari MCB, magnetic contactor, timer H3CR, relay, inverter 2000VA, solar charge controller 100A, NodeMCU ESP8266 IoT, dan baterai 12V 100Ah. Penelitian ini akan dilakukan dalam periode satu tahun menghasilkan ATS berbasiskan mikrokontroler yang dapat mengatur suplai beban secara otomatis dari ketiga sumber energi listrik dengan tingkat efisiensi dan kestabilan yang baik. Tim penelitian ini tediri dari 3 orang dan berasal dari program studi teknik elektro, IT PLN.  Kata kunci: pembangkit listrik tenaga surya, pembangkit listrik tenaga hibrid, pengaturan suplai beban.

Model and control scheme for recirculation mode direct steam generation parabolic trough solar power plants

2017 ◽  
Vol 202 ◽  
pp. 700-714 ◽  
Author(s):  
Su Guo ◽  
Deyou Liu ◽  
Xingying Chen ◽  
Yinghao Chu ◽  
Chang Xu ◽  
...  
Keyword(s):  
Power Plants ◽  
Solar Power ◽  
Steam Generation ◽  
Parabolic Trough ◽  
Control Scheme ◽  
Direct Steam ◽  
Solar Power Plants ◽  
And Control

A Numerical Model for Off-Design Performance Calculation of Parabolic Trough Based Solar Power Plants

2010 ◽  
Author(s):  
Andrea Giostri ◽  
Claudio Saccilotto ◽  
Paolo Silva ◽  
Ennio Macchi ◽  
Giampaolo Manzolini
Keyword(s):  
Heat Transfer ◽  
Numerical Model ◽  
Heat Transfer Fluid ◽  
Working Fluid ◽  
Design Calculation ◽  
Fluid Temperature ◽  
Parabolic Trough ◽  
Design Algorithm ◽  
Energy Balances ◽  
Steam Cycle

The paper deals with the development and testing of an innovative code for the performance prediction of solar trough based CSP plants in off-design conditions. The code is developed in MS Visual Basic 6.0 with Excel as user interface. The proposed code originates from a previously presented algorithm for on-design sizing and cost estimation of the solar field lay-out, as well as of the main components of the plant, including connecting piping and the steam cycle. Off-design calculation starts from data obtained through the on-design algorithm and considers steady-state situations. Both models are implemented in the same software, named PATTO (PArabolic Trough Thermodynamic Optimization), which is very flexible: the optical-thermal model of collectors can simulate different kinds of parabolic trough systems in commerce, including a combination of various mirrors, receivers and supports. The code is also flexible in terms of working fluid, temperature and pressure range, and can also simulate direct steam generation plants (DSG). Regarding the power block, a conventional steam cycle with super-heater, eventually a re-heater section, and up to seven regenerative bleedings is adopted. The off-design model calculates thermal performance of collectors taking into account proper correlations for convective heat transfer coefficients, considering also boiling regime in DSG configurations. Solar plant heat and mass balances and performances at off-design conditions are estimated by accounting for the constraints imposed by the available heat transfer areas in heat exchangers and condenser, as well as the characteristic curve of the steam turbine. The numerical model can be used for a single calculation in a specific off-design condition, as well as for a whole year estimation of energy balances with an hourly resolution. The model is tested towards real applications and reference values found in literature; in particular, focusing on SEGS VI plant in the USA and SAM® code. Annual energy balances with ambient condition taken from TMY3 database are obtained, showing good accuracy of predicted performances. The code potentiality in the design process reveals twofold: it can be used for plant optimization in feasibility studies; moreover it is useful to find the best control strategy of a plant, especially the mass flow of heat transfer fluid in each operating condition.

scholarly journals Reducing the Cost of Energy From Parabolic Trough Solar Power Plants

Solar Energy ◽  
2003 ◽  
Author(s):  
Henry Price ◽  
David Kearney
Keyword(s):  
Mojave Desert ◽  
Power Plants ◽  
Large Scale ◽  
Solar Power ◽  
Parabolic Trough ◽  
Cost Of Energy ◽  
Solar Power Plants ◽  
The Cost ◽  
The Impact ◽  
Fossil Fuel Power Plants

Parabolic trough solar technology is the most proven and lowest cost large-scale solar power technology available today, primarily because of the nine large commercial-scale solar power plants that are operating in the California Mojave Desert. However, no new plants have been built during the past ten years because the cost of power from these plants is more expensive than power from conventional fossil fuel power plants. This paper reviews the current cost of energy and the potential for reducing the cost of energy from parabolic trough solar power plant technology based on the latest technological advancements and projected improvements from industry and sponsored R&D. The paper also looks at the impact of project financing and incentives on the cost of energy.

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