Showing papers on "Power station published in 2016"
TL;DR: In this article, the authors provide a comprehensive summary of concentrating solar power (CSP) plants both in operation and under construction, covering the available technologies for the receiver, thermal storage, power block and heat transfer fluid.
Abstract: A concentrating solar power (CSP) system converts sunlight into a heat source which can be used to drive a conventional power plant. Thermal energy storage (TES) improves the dispatchability of a CSP plant. Heat can be stored in either sensible, latent or thermochemical storage. Commercial deployment of CSP systems have been achieved in recent years with the two-tank sensible storage system using molten salt as the storage medium. Considerable research effort has been conducted to improve the efficiency of the CSP system and make the cost of electricity comparable to that of the conventional fossil-fuel power plant. This paper provides a comprehensive summary of CSP plants both in operation and under construction. It covers the available technologies for the receiver, thermal storage, power block and heat transfer fluid. This paper also reviews developments in high temperature TES over the past decade with a focus on sensible and latent heat storage. High temperature corrosion and economic aspects of these systems are also discussed.
672 citations
TL;DR: In this article, a combined heat and power dispatch (CHPD) is formulated to coordinate the operation of electric power system (EPS) and district heating system (DHS), which is solved by an iterative method.
Abstract: The regional integration of variable wind power could be restricted by a strong coupling of electric power generation dispatch and heat supply of combined heat-and-power (CHP) units. The coupling in cold seasons precludes CHPs from providing the necessary flexibility for managing the wind power dispatch. The lack of flexibility problem can be tackled by exploiting the energy storage capability of a district heating network (DHN) which decouples the strong linkage of electric power and heat supplies. In this paper, a combined heat and power dispatch (CHPD) is formulated to coordinate the operation of electric power system (EPS) and district heating system (DHS). The proposed CHPD model which is solved by an iterative method considers the temperature dynamics of DHN for exploiting energy storage as an option for managing the variability of wind energy. The simulation results are discussed for several test systems to demonstrate the potential benefits of the proposed method in terms of operation economics, wind power utilization, as well as the potential benefits for real systems.
544 citations
TL;DR: In this article, a model of over 25,000 hydro- and thermoelectric power plants was used to show that water constraints are likely to severely reduce usable capacity after 2040.
Abstract: Modelling of over 25,000 hydro- and thermoelectric power plants shows water constraints are likely to severely reduce usable capacity after 2040. Fuel switching, increasing efficiency and new cooling systems can reduce power plants’ vulnerability.
416 citations
TL;DR: In this article, transmission-constrained unit commitment (UC) with combined electricity and district heating networks (UC-CEHN) is formulated with a linear DHN model to coordinate short-term operation of electric power and heating systems.
Abstract: Wind power integration could be restricted by inflexible operation of combined heat and power (CHP) units due to the strong linkage between power generation and heating supply in winter. Utilization of the heat storage capacity of existing district heating network (DHN) is a cost-effective measure to enhance power system operational flexibility to accommodate large amounts of variable wind power. In this paper, transmission-constrained unit commitment (UC) with combined electricity and district heating networks (UC-CEHN) is formulated with a linear DHN model to coordinate short-term operation of electric power and district heating systems. The heat storage capacity of the DHN is modeled by capturing the quasi-dynamics of pipeline temperature. Both deterministic and robust models are developed to incorporate UC with the linear DHN model. Case studies are carried out for two test systems to show the potential benefits of the proposed method in terms of wind power integration and efficient operation.
307 citations
TL;DR: In this paper, the authors investigated the performance of supercritical CO 2 cycles for coal power plant application and proposed a design of such a power cycle for a first step implementation of the technology.
246 citations
TL;DR: In this article, the authors focused on how the electric vehicle emissions vary when compared to internal combustion engine vehicles, depending on the electric power plant fleet and the efficiency during the use-phase.
246 citations
TL;DR: In this article, an organic rankine cycle (ORC) coupled with parabolic trough collectors (PTC) is analyzed parametrically in order to be optimized financially and energetically.
172 citations
TL;DR: In this paper, the authors provided a global estimate of the water production cost for the 2030 desalination demand with renewable electricity generation costs for an optimised local system configuration based on an hourly temporal and 0.45°×−0.15° spatial resolution.
169 citations
TL;DR: The potential of geothermal energy in Indonesia is estimated to be about 40% of the world's geothermal potential or about 28,617 MW as mentioned in this paper, however, only about 4.5% is being utilized as electrical energy in the country.
Abstract: Geothermal energy is counted as a type of renewable energy, which means the availability is not affected by the lack of source and the increasing price of fossil oil. Environmental friendly is also one of the advantages of geothermal energy. In general, not all countries have the potential of geothermal energy, only countries traversed by the ring of fire have the geothermal energy resource. As one of the countries that traversed by the world׳s ring of fire, Indonesia hence holds the geothermal potential, which is indicated by the existing 117 active volcanoes spread across the country. Indonesia׳s geothermal energy potential is estimated about 40% of the world׳s geothermal energy potential or about 28,617 MW. However, only about 4.5% is being utilized as electrical energy in the country. The government of Indonesia is continuously putting the effort to increase the capacity of geothermal power plant. It is planned to install more geothermal power plant in Indonesia that amounted up to 9500 MW by 2025.
162 citations
TL;DR: In this article, the authors reviewed the different hybrid PV-Wind renewable energy hybrid systems used for electrical power generation and discussed different criteria of sizing the different system components of hybrid renewable energy power plant at the most preferable logistical environmental and economical considerations.
Abstract: Renewable energy hybrid power systems have been proven through their ability to address the limitations of single renewable energy system in terms of power efficiency, stability, and reliability while operating at minimum cost. In this regards many research and practical experiences have been done. The present paper reviews the different hybrid PV–Wind renewable energy hybrid systems used for electrical power generations. Different criteria of sizing the different system components of hybrid renewable energy power plant at the most preferable logistical environmental and economical considerations have been discussed. Also, the paper discussed some of the optimization approaches which are used to compare the energy production cost and performance of different hybrid system configurations using simulation techniques. Based on the fact that, potential of the wind and solar energy is not equal in Oman, this paper will discuss the optimum sizing process of two proposed hybrid PV–Wind plants in Oman.
159 citations
TL;DR: In this paper, the authors optimized the area of the PV system and the size of the engine-generator of the biomass system for minimizing the total net present cost of the system during its lifetime.
TL;DR: In this paper, a recompression sCO 2 cycle for a solar central particles receiver application has been optimized, observing net cycle efficiency close to 50% for medium-to-moderate temperature range.
TL;DR: In this article, the authors proposed a combined cooling, heating and power system (CCHP) based on small-scale compressed air energy storage (CAES) with artificial air vessels.
TL;DR: In this article, the first concrete was poured on December 9, 2012 at the Shidao Bay site in Rongcheng, Shandong Province, China, the construction of the reactor building for the world's first high-temperature gas-cooled reactor pebble-bed module (HTR-PM) demonstration power plant was completed in June, 2015.
TL;DR: In this paper, a review of geometrical configuration of thermal energy storage tank by summarizing a series of numerical, experimental and theoretical studies in the open literatures has been proposed in the paper.
Abstract: Concentrating solar power plant coupling with thermal energy storage is a new and emerging technology in the renewable energy field. A multitude of research works focus on improving the performance of the power plant for getting the higher efficiency and lower cost. Due to the poor thermal conductivity of phase change materials and complex physical/chemical heat transfer process in the storage tank, geometrical configurations of the storage tank are vital for the system׳s performance, thus affect the large-scale application of concentrating solar power plant. This paper presents a review of geometrical configuration of thermal energy storage tank by summarizing a series of numerical, experimental and theoretical studies in the open literatures. A widespread discussion for thermal energy storage tank in future application has been proposed in the paper. The results can provide a good reference for designing, operating, and energy-saving of thermal energy storage system for concentrating solar power plants.
TL;DR: In this paper, the authors assess how future greenhouse gas emissions from electricity production in Brazil can be minimized by optimizing the daily dispatch of photovoltaic (PV), wind, thermal, and hydropower plants.
TL;DR: In this article, a stochastic chance-constrained planning method is applied to build a multi-objective optimization model for virtual power plant scheduling, and a three-stage hybrid intelligent solution algorithm is proposed, featuring particle swarm optimization algorithm, the entropy weight method and the fuzzy satisfaction theory.
TL;DR: In this article, a stochastic programming-robust optimization model is presented to balance the profit estimates and the tractability to various circumstances in the supply chain of a power plant.
TL;DR: In this article, the authors attempted to find the ideal locations for construction of hybrid solar-wind power stations in Middle-East using Boolean model in GIS software, and the selected locations will definitely have greater energy potential by using the Boolean method.
Abstract: Nowadays, renewable energies are more preferable to fossil fuels because of being free, widely available and producing minimal pollution. One of the disadvantages of renewable energy systems is that using only one type of renewable energy cannot guarantee a continuous power generation. To overcome this problem, two or more renewable energy systems should be used simultaneously to compensate for times when one of them is not available or the renewable system should be used aligned with the generator. In addition, another weakness is that they are not accessible in every geographical position and location. It is clear that renewable energy systems can be exploited to their fullest capacity when used in the proper place. Therefore, given the importance of finding suitable places for co-utilization of several renewable energies, present paper attempted to find the ideal locations for construction of hybrid solar-wind power stations in Middle-East using Boolean model in GIS software. The Boolean method is, in a way, a more stringent method compared to the other positioning methods. Therefore, the selected locations will definitely have greater energy potential by using the Boolean method. Data obtained by RETScreen4 software from 400 stations in Middle-East were used for collecting monthly weather information. Results of the current paper may be helpful in creating prospects for sustainable energy development for systems based on natural resources and facilitating the national power transmission and sustainable environmental policies.
TL;DR: In this paper, high spatial and temporal resolution optimal power flow simulations of the 2013 and 2020 interconnected grid in Central Western and Eastern Europe regions are undertaken to assess the impact of an increased penetration of renewables on thermal power plants.
TL;DR: In this article, a model-based assessment of the economic demand response potential in Germany is presented, which relies on the extension of the REMix energy system model by flexible electric loads.
TL;DR: In this paper, a closed Brayton cycle and two organic Rankine cycles are employed to recover the waste heat of the Brayton Cycle for power generation from solar power towers, and a parametric study is conducted to examine the effects of key operating parameters (including solar subsystem and power cycle parameters) on overall power plant performance.
TL;DR: In this paper, the authors present a comprehensive, yet practical and reliable tool for a systematic sustainability assessment based on the Life Cycle Assessment (LCA) and the Analytic Hierarchy Process (AHP) to support decision makers in complex decision problems in the field of environmental sustainability.
TL;DR: In this paper, an energy management approach for a hybrid energy system comprised of a photovoltaic (PV) array and a polymer electrolyte membrane fuel cell (PEMFC) is investigated.
Abstract: This study presents an energy management approach for a hybrid energy system comprised of a photovoltaic (PV) array and a polymer electrolyte membrane fuel cell (PEMFC). Two storage devices [a Li-ion battery module and a supercapacitor (SC) bank] are used in the proposed structure as a high-energy high-power density storage device. Multisegment converters for the PV, fuel cell (FC), battery, and SC are proposed for grid-independent applications. Nonlinear differential flatness-based fuzzy logic control for dc-bus voltage stabilization for power plant is investigated. To validate the control approach, a hardware system is realized with analog circuits for the PV, FC, battery, and SC current control loops (inner controller loops), and with numerical calculation (dSPACE) for the external energy control loop. Experimental results with small-scale devices [a PV array (800 W, 31 A), a PEMFC (1200 W, 46 A), a Li-ion battery module (11.6 Ah, 24 V), and an SC bank (100 F, 32 V)] demonstrate the excellent energy-management scheme during load cycles.
TL;DR: In this paper, a novel integrated system is proposed which combines biomass gasification, chemical looping combustion, solid oxide fuel cell system and a steam power cycle and the net efficiency reaches to 55.8% with 100% carbon dioxide capture.
TL;DR: In this article, the history of the solar updraft tower power plant (SUTPP), also called solar chimney power plant) technology is reviewed, its characteristics are presented, and its principle is described.
TL;DR: In this paper, a global linear programming (LP) optimization algorithm is developed, where the optimal components sizing is computed directly in the same optimization as the operating management of the storage system.
Abstract: Energy storage systems (ESS) when integrated with large-scale photovoltaic (PV) plants, constituting a so-called Intelligent PV (IPV) power plant, are able to contribute to improve the economic viability of these power plants and to help them participate in the electricity markets as other traditional generators. In this paper, the sizing and control strategy co-optimization for an existing IPV power plant is proposed and implemented. A global linear programming (LP) optimization algorithm is developed, where the optimal components sizing is computed directly in the same optimization as the operating management of the storage system. In the IPV power plant design stage, the LP optimization is applied to obtain the optimal energy storage sizing parameters (capacity and power rate). In the operation stage, the same LP algorithm optimizes the control strategy to participate to electricity markets. This participation is based on the online model predictive control (MPC) to counteract PV forecast errors by participating in intraday markets. The proposed approach (optimal ESS sizing and online MPC) increases the daily economic benefits around 20%.
TL;DR: In this paper, a model of a representative air-cooled condenser (ACC) system is developed to explore the potential to mitigate this penalty through techniques that reduce the air-side thermal resistance, and by raising the air mass flow rate.
TL;DR: In this article, the authors proposed a methodology to optimize the size and operational strategy of this wind powered desalination and pumped hydro storage system, aiming to minimize the total annualized production costs, maximize the percentage of renewable energy sources in the total power production and minimize the wind power curtailed.
TL;DR: In this article, the economic and environmental benefits of an integrated solar combined cycle power plants (ISCCs) are quantified by simulating hourly operations for five U.S. locations with different solar resources and ambient temperature.