Synthesis of efficient solar thermal power cycles for baseload power supply

Gençer, Emre

doi:10.1016/j.enconman.2016.10.068

Cited by 20 publications

(5 citation statements)

References 45 publications

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“…Optimizing solar-driven ORCs to increase efficiency is vital in creating a vision for scaling ST-RO systems [32]. In addition, advances in the design and efficiency of solar thermal power cycles also make the prospect for ST-RO scaling up [62] [63].…”

Section: ) Solar Thermal-driven Reverse Osmosis (St-ro) Systemmentioning

confidence: 99%

Solar-Driven Water Treatment: New Technologies, Challenges, and Futures

Ghernaout¹,

Irki²,

Elboughdiri³

et al. 2023

GSC

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In this review, the new solar water treatment technologies, including solar water desalination in two direct and indirect methods, are comprehensively presented. Recent advances and applications of five major solar desalination technologies include solar-powered humidification-dehumidification, multi-stage flash desalination, multi-effect desalination, RO, and solar stills. Each technology's productivity, energy consumption, and water production costs are presented. Also, common methods of solar water disinfection have been reviewed as one of the common and low-cost methods of water treatment, especially in areas with no access to drinking water. However, although desalination technologies have many social, economic, and public health benefits, they are energy-intensive and negatively affect the environment. In addition, the disposal of brine from the desalination processes is one of the most challenging and costly issues. In this regard, the environmental effects of desalination technologies are presented and discussed. Among direct solar water desalination technologies, solar still technology is a low-cost, low-tech, and low-investment method suitable for remote areas, especially in developing countries with low financial support and access to skilled workers. Indirect solar-driven water desalination technologies, including thermal and membrane technologies, are more reliable and technically more mature. Recently, RO technology has received particular attention thanks to its lower energy demand, lower cost, and available solutions to increase membrane durability. Disposal of brines can account for much of the water cost and potentially negatively affect the environment. Therefore, in addition to efforts to improve the efficiency and reduce the cost of solar technologies and water treatment processes, future research studies should consider developing new solutions to this issue.

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Section: ) Solar Thermal-driven Reverse Osmosis (St-ro) Systemmentioning

confidence: 99%

Solar-Driven Water Treatment: New Technologies, Challenges, and Futures

Ghernaout¹,

Irki²,

Elboughdiri³

et al. 2023

GSC

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“…Advances in solar thermal power cycle design and efficiency [163] will prove to be crucial in opening up prospects for scaling up ST-RO. The efficiency of the sORC is also dependent on its individual components, namely the efficiency of the solar collector and the efficiency of the ORC, which in turn depends on variables such as choice of working fluid, operating temperature, etc.…”

Section: Solar Thermal Ro Systemsmentioning

confidence: 99%

Solar powered desalination – Technology, energy and future outlook

2019

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Growing water demands have led to rapidly increasing desalination installation capacity worldwide. In an attempt to lower carbon footprint resulting from high-energy consuming desalination processes, attention has shifted to using renewable energy sources to power desalination. With solar irradiation ample in regions that heavily rely on desalination, solar powered desalination provides a sustainable solution to meeting water needs. The compatibility of each desalination process with the solar technology is driven by whether the kind of energy needed is thermal or electrical, as well as its availability. With rapid advances in solar energy technologiesboth photovoltaic and solar thermal, there has also been growing interest in coupling solar energy with desalination, with a focus on improving energy efficiency. In this review, the most recent developments in photovoltaic powered reverse osmosis (PV-RO), solar thermal powered reverse osmosis (ST-RO) are discussed with respect to membrane materials, process configuration, energy recovery devices and energy storage. In addition, advances in new materials for solar powered membrane distillation (MD) and solar stills in the past two years have also been reviewed. Future outlook considers the use of hybrid renewable energy systems as well as solar powered forward osmosis and dewvaporation. Solar powered desalination systems have been analysed with emphasis on technological and energy consumption aspects.

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“…Concentrated solar power (CSP) plants equipped with an energy storage system are one of the most promising clean large-scale technologies that can provide cost-effective and dispatchable renewable power while addressing the challenge of intermittency . Thermochemical energy storage (TCES), which allows higher operating temperature and higher storage density than the current commercial molten-salt storage systems, should be more suitable for the next-generation CSP plants to improve the thermodynamic efficiency of power generation .…”

Section: Introductionmentioning

confidence: 99%

MgCr₂O₄-Modified CuO/Cu₂O for High-Temperature Thermochemical Energy Storage with High Redox Activity and Sintering Resistance

Deng

et al. 2022

ACS Appl. Mater. Interfaces

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Metal oxides as high-temperature thermochemical energy storage systems with high energy density based on the gas− solid reaction are a critical demand for the future development of concentrated solar power plants. A copper-based system has high enthalpy change and low cost, but its serious sintering leads to poor reactivity. In this study, MgCr 2 O 4 is decorated on the CuO/Cu 2 O surface to effectively increase the sintering temperature and alleviate the sintering problem. The re-oxidation degree is increased from 46 to 99.9%, and the reaction time is shortened by 3.7 times. The thermochemical energy density of storage and release reach −818.23 and 812.90 kJ/kg, respectively. After 600 cycles, the oxidation activity remains 98.77%. Material characterization elucidates that nanosized MgCr 2 O 4 is uniformly loaded on the surface of CuO/Cu 2 O during the reversible reaction, and there is a strong interaction between metal oxides and prompter. Density functional theory (DFT) calculation further confirms that CuO/Cu 2 O−MgCr 2 O 4 has large binding energy and the formation energy of copper vacancy increases, which can effectively inhibit sintering. The modification mechanism of CuO/Cu 2 O by MgCr 2 O 4 is revealed, which can provide guidance for the reasonable design of thermochemical energy storage materials with sintering resistance and redox activity.

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Synthesis of efficient solar thermal power cycles for baseload power supply

Cited by 20 publications

References 45 publications

Solar-Driven Water Treatment: New Technologies, Challenges, and Futures

Solar-Driven Water Treatment: New Technologies, Challenges, and Futures

Solar powered desalination – Technology, energy and future outlook

MgCr₂O₄-Modified CuO/Cu₂O for High-Temperature Thermochemical Energy Storage with High Redox Activity and Sintering Resistance

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Synthesis of efficient solar thermal power cycles for baseload power supply

Cited by 20 publications

References 45 publications

Solar-Driven Water Treatment: New Technologies, Challenges, and Futures

Solar-Driven Water Treatment: New Technologies, Challenges, and Futures

Solar powered desalination – Technology, energy and future outlook

MgCr2O4-Modified CuO/Cu2O for High-Temperature Thermochemical Energy Storage with High Redox Activity and Sintering Resistance

Contact Info

Product

Resources

About

MgCr₂O₄-Modified CuO/Cu₂O for High-Temperature Thermochemical Energy Storage with High Redox Activity and Sintering Resistance