A Typical Solar-coal Hybrid Power Plant in China

Hong, Hui; Peng, Shuo; Zhao, Yinfeng; Liu, Qiancheng; Jin, Hongguang

doi:10.1016/j.egypro.2014.03.188

Cited by 34 publications

(8 citation statements)

References 10 publications

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“…Hybridization also increased the plant capacity factor slightly from 22.3% to 23.8%. Presumably, the capacity factor would be much higher if the plant were operated in coal-only mode at night [16]. A later study showed solar-to-electricity efficiency as high as 27.3% for the hybrid configuration as compared to 25.9% for a solar-only plant [17], although Zhai et al reported lower solar-to-electric efficiencies of 13.6% in a similar configuration [18].…”

Section: Solar-aided Boiler Feedwater and Air Pre-heatingmentioning

confidence: 98%

Hybrid concentrated solar thermal power systems: A review

Powell

Rashid

Ellingwood

et al. 2017

Renewable and Sustainable Energy Reviews

193

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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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Section: Solar-aided Boiler Feedwater and Air Pre-heatingmentioning

confidence: 98%

Hybrid concentrated solar thermal power systems: A review

Powell

Rashid

Ellingwood

et al. 2017

Renewable and Sustainable Energy Reviews

193

View full text Add to dashboard Cite

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“…The investment cost of components of the same type with different power output was calculated using Equation 15 [66,67]. The investment cost of a 1000 MW CO 2 capture unit was calculated based on a 500 MW CO 2 capture unit [66][67][68][69], shown in Appendix C. Table 7 shows the main exergy cost model analysis results of PG-CC, SA-PG-CC and SA-CC-PG systems, with detailed results listed in Appendix D. Table 7. Primary results of exergy analysis for coal-fired power-generation system with MEA-based CO 2 capture (PG-CC), solar-aided coal-fired power generation with CO 2 capture (SA-PG-CC) and solar-aided CO 2 capture coal-fired power generation (SA-CC-PG).…”

Section: Economic Parametersmentioning

confidence: 99%

“…Abbreviations and Components. Investment of Each Component in the MEA-Based CO 2 Capture Subsystem[67][68][69]. Results of Exergy Cost (kW/kW) in the PG-CC, SA-PG-CC and SA-CC-PG Systems.…”

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confidence: 99%

Analysis of Integration of MEA-Based CO2 Capture and Solar Energy System for Coal-Based Power Plants Based on Thermo-Economic Structural Theory

Zhai

Liu

et al. 2018

Energies

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Installing CO 2 capture plants in coal-fired power stations will reduce greenhouse gas emissions and help mitigate climate change. However, the deployment of this technology faces many obstacles-in particular, high energy consumption. Aiming to address this challenge, we investigated the integration of a solar energy system in a 1000 MW coal-fired power plant equipped with monoethanolamine (MEA)-based CO 2 capture (termed PG-CC) by comparing the thermo-economic performance of two integrated systems with that of PG-CC. In the first system, solar-aided coal-fired power generation equipped with MEA-based CO 2 capture (SA-PG-CC), solar thermal was used to heat the high-pressure feed water in the power plant, while the reboiler duty of the capture plant's stripper was provided by extracted low-pressure steam from the power plant. The second system integrated the power plant with solar-aided MEA-based CO 2 capture (SA-CC-PG), using solar thermal to heat the stripper's reboiler. Both systems were simulated in EBSILON Professional and Aspen Plus and analysed using thermo-economics theory. We then evaluated each system's thermodynamic and economic performance in terms of power generation and CO 2 capture. Compared with PG-CC, the thermo-economic cost of electricity increased by 12.71% in SA-PG-CC and decreased by 9.77% in SA-CC-PG. The unit thermo-economic cost of CO 2 was similar in both the PG-CC and SA-PG-CC systems, but significantly greater in SA-CC-PG. Overall, SA-PG-CC produced less power but used energy more effectively than SA-CC-PG. From a thermo-economic point of view, SA-PG-CC is therefore a better choice than SA-CC-PG.

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“…The saturated-rich vapor is expanded to a low pressure P c in the turbine to produce shaft work. In the meantime, after rejecting heat in the high temperature recuperator (5) to the subcooled liquid solution, the weak liquid solution is released to the pressure P c (6) in the throttle. Under pressure P c , the exhaust rich ammonia-water vapor from the turbine (3) is diluted by weak liquid solution (6) at throttle outlet and both streams are fed to mixer to produce the basic solution (7).…”

Section: Schematic Description Of Cpc-kcs Hybrid Systemmentioning

confidence: 99%

Preliminary analysis on thermodynamic and thermo‐economic performance of a solar CPC–KCS hybrid system

Xiao

Fan

et al. 2018

Env Prog and Sustain Energy

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Using solar collectors to actuate Kalina cycle system (KCS) for electricity generation has been an attractive way to take advantage of solar energy. Most of the existing research is about KCS integrated with flat plate collector, evacuated tube collector, or concentrating collectors; however, little research focuses on the KCS powered by compound parabolic concentrator (CPC). Considering the merits of CPC, a Kalina 11 cycle system which is directly powered by CPC, named as solar CPC–KCS hybrid system is studied as the research object. Energy, exergy and thermo‐economic models are established to estimate the system performance by varying the solar radiation, evaporating temperature and concentration of working fluid. Results show that higher evaporating temperature improves thermal and exergy efficiency. There are optimal values of Te for maximum wnet, that is, Te,opt = 422.15, 434.15, and 446.15 K, respectively, at Xr = 0.95, 0.93, and 0.91; while Te,opt = 443.15, 437.15, and 425.15 K at Xb = 0.8, 0.7, and 0.6. Higher Xr and lower Xb is generally favorable for system performance. But when Te ≥ 422.15 K, lower Xb is not beneficial to ηex improvement anymore. Additionally, once evaporating temperature exceeds 439.15 K, it is cost‐effective to install a superheater to avoid erosion potential risk. © 2018 American Institute of Chemical Engineers Environ Prog, 38:e13135, 2019

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A Typical Solar-coal Hybrid Power Plant in China

Cited by 34 publications

References 10 publications

Hybrid concentrated solar thermal power systems: A review

Hybrid concentrated solar thermal power systems: A review

Analysis of Integration of MEA-Based CO2 Capture and Solar Energy System for Coal-Based Power Plants Based on Thermo-Economic Structural Theory

Preliminary analysis on thermodynamic and thermo‐economic performance of a solar CPC–KCS hybrid system

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