Showing papers on "Power station published in 2021"
TL;DR: An extensive review of various solar thermal energy technologies and their industrial applications is presented in this article, where the future outlook has been proposed to overcome the challenges involved in the integration and the economics.
109 citations
TL;DR: In this paper, the levelized cost of electricity (LCOE) from green ammonia was forecast to 2040, based on near-term and long-term technological developments to fill the knowledge gap for the application of ammonia as an energy vector in the electricity sector.
78 citations
TL;DR: In this article, a combined heat and power system based on biomass gasification, compressed air energy storage (CAES), and gas turbine power plant is introduced and analyzed by using ASPEN PLUS.
67 citations
TL;DR: In this paper, a pulsed-spray water cooling system is designed for photovoltaic panels to improve the efficiency of these solar systems and decrease the water consumption during the cooling process.
65 citations
TL;DR: Results show that the proposed combined plant with multi-time scale stochastic unit commitment-economic dispatch model has better economic benefits and development potential in the electrical-heating integrated energy system.
63 citations
TL;DR: In this paper, the authors developed a comprehensive process model to simulate all the relevant sections for the conversion of 1.25 t/h of captured CO2 from a coal-fired power plant to methanol, using green hydrogen via water electrolysis.
Abstract: This work assesses the opportunity of using “green” methanol (MeOH) produced from renewable electricity as a vector for the decarbonization of chemical process industry. We developed a comprehensive process model to simulate all the relevant sections for the conversion of 1.25 t/h of captured CO2 from a coal-fired power plant to methanol, using “green” hydrogen via water electrolysis. We applied the pinch analysis methodology for an improved thermal management of the integrated carbon capture, electrolysis and methanol synthesis plant. A network of recovery heat exchangers was designed with the pinch analysis methodology, allowing a thermal energy saving of 4.59 MW, with a net reduction of heating and cooling demands by 81 % and 47 %, respectively, and an improvement of the global efficiency of the plant from 26.74 % to 37.22. We followed a bottom-up approach for the techno-economic assessment, defining a confidence range for the main indicators of system economic viability. We assessed their sensitivity to the cost of electricity from seven renewable energy sources and to the option of selling oxygen produced by water electrolysis, in three different cost scenarios (1-optimistic, 2-realistic, 3-pessimistic). The estimated values of the cost of methanol (COM) span from a maximum range of 2624–2706 €/t (in the case of concentrated solar power) to a minimum of 565–647 €/t (hydropower with highest valorization of electrolytic oxygen), hence resulting in line with the future trends of methanol market price (400–800 €/t) in five of the considered configurations. We have finally estimated the levelized cost of methanol (LCOM) ensuring an internal rate of return ranging from 0 to 10 % for each of the techno-economic scenarios identified. Assuming 10 % as the target, LCOM in case of hydropower as renewable energy source spans from 874 to 1356 €/t, hence close to the future market price of MeOH with margin of improvement (655–1135 €/t) in case of lower costs of electric energy.
62 citations
TL;DR: In this paper, the thermodynamic and economic aspects of a multigeneration plant for inherent production of freshwater, power, cooling and heating by utilizing geothermal energy were investigated, and the results indicated that geothermal driven freshwater production is one of the most economically feasible renewable driven clean production options, while a flash/binary power plant results in higher efficiency and lower electricity costs.
58 citations
TL;DR: In this paper, the effect of series, parallel and hybrid selective exhaust gas recirculation is examined, a concept where selectively CO2 can be recycled back and mixed into the ambient air to the inlet feed of the compressor thereby reducing the flue gas flow rate and enhancing CO2 content at the capture plant.
57 citations
TL;DR: In this article, the authors investigated the economic performance of a solar dish power plant under Egypt desert weather condition and the proposed power plant was modeled and simulated using System Advisor Model (SAM) based on the annual simulations of 50MW installed capacity.
57 citations
TL;DR: This study evaluates the design and optimization of an islanded hybrid microgrid for various load dispatch strategies by assessing the optimal sizing of each component, the power system responses and different cost analysis of the microgrid.
57 citations
TL;DR: In this article, a concentrated solar and geothermal-based integrated system is thermodynamically investigated to produce useful outputs, such as hydrogen, space heating, electricity, and fresh water.
TL;DR: In this article, a comprehensive electricity generation analysis based on an hourly time-step is done in a bid to solve to electrification crisis in developing countries by considering the financial feasibility, environmental sustainability, and technical viability of different technological combinations.
TL;DR: In this article, the authors investigated the recycling of carbon dioxide from gas-fired power plant emissions into synthetic natural gas based on a novel power-to-gas process with the aim of chemical energy storage and emission reduction.
TL;DR: In this article, the life cycle impacts of process stages (material and coal transportation, and plant operations) of a coal-fired power plant at Sahiwal, Pakistan has been analyzed.
TL;DR: To evaluate WW-S-CAES project risk along low carbon development in this paper, 14 critical criteria in management, economy and environment are identified and a target risk assessment framework is established, indicating that the risk level of offshore WW- S-CAes is closer to middle high, and the management risk and economy risk occupy the determinant position.
TL;DR: This article aims to predict a wind power plant’s power output using weather and power plant parameters and employ an extended fuzzy wavelet neural network (FWNN) and shows that compared to other methods reported, the proposed method was a more efficient tool and had higher precision for short-term wind power forecasting.
TL;DR: In this article, a set of steps to include the technical and economic parameters to simulate fuelling an electric generator through the syngas produced in a downdraft biomass gasification plant is presented.
TL;DR: An artificial intelligence based optimal scheduling strategy for the power plant-carbon capture system in the context of renewable power penetration is proposed to show that the mutual benefits between carbon capture and renewable power can be achieved when the carbon capture process is made fully adjustable.
TL;DR: In this paper, a system that flexibly integrates the combined cycle power plant and liquid air energy storage to maximize the recovery of the wasted heat and cold energy is proposed, achieving the bidirectional peak shaving.
TL;DR: This work presents a modeling and multi-criteria optimization strategy for designing and operating decentralized power plants including different energy vectors and notes the significant potential of the decentralized generation.
TL;DR: In this article, the authors investigated the potential of a novel integrated solid oxide fuel cell-based power plant via liquefied natural gas together with geothermal energy, addressing this matter.
TL;DR: A high-resolution inventory of power plants with more than 6 MW accounting for 93% of the national power generation in China is established for the first time and the CO2, NOx and SO2 emissions of China's hard coal power, natural gas power, hydropower, wind power, photovoltaic power, biomass power and nuclear power are calculated by using the life cycle assessment method.
TL;DR: In this paper, a review of different techniques for minimization of energy consumption by increasing the heat transfer enhancement in the heat exchangers, which are used in several fields like solar air heaters, automobile radiators, condenser, and evaporators of power plant units, refrigeration unit, steam turbines, etc.
TL;DR: In this paper, the levelized cost of energy impacts of turbine ratings between 6 and 20 MW and plant capacities between 250 and 2,500 MW for fixed-bottom offshore wind using techno-economic cost models for foundation, electrical, installation, and operation and maintenance costs, along with annual energy production.
TL;DR: In this article, the authors evaluated the environmental effects of using a hybrid wind turbine system, electrolysis system, solid oxide fuel cell and gasifier, and showed that the hybrid system reduced 34.62% of carbon dioxide production, compared to the single system.
TL;DR: In this article, a life cycle energy use, CO2 emissions and cost input evaluation of a 650MW Biomass Chemical Looping Gasification Combined Cycle (BCLGCC) and a biomass/coal integrated gasification combined cycle (BIGCC/CIGCC) power generation plants with and without (w/o) CO2 capture & storage (CCS) is analyzed.
TL;DR: In this article, a multiobjective optimization procedure of a waste-heat recovery unit installed at the exit of an engine before the engine cooling fluid-exhaust gas heat exchanger is proposed.
TL;DR: In this article, the authors investigated different ways to utilize the LNG cold energy for both a stand-alone power plant and a cogeneration system with power generation and LNG regasification.