Stirling engine based solar-thermal power plant with a thermo-chemical storage system

Acharya, Shantanu; Bhattacharjee, Subhadeep

doi:10.1016/j.enconman.2014.06.030

Cited by 24 publications

(4 citation statements)

References 28 publications

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“…Thermal oil, molten salt and sand were explored as a storage material and economics was evaluated under a selected operation regime. The development of similar CSP applications using Stirling engine systems, often including various TES types, can be found in a number of other scientific publications [131,132].…”

Section: Electrically Heated Other and Hybrid Systemsmentioning

confidence: 99%

Review of Carnot Battery Technology Commercial Development

et al. 2022

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Carnot batteries are a quickly developing group of technologies for medium and long duration electricity storage. It covers a large range of concepts which share processes of a conversion of power to heat, thermal energy storage (i.e., storing thermal exergy) and in times of need conversion of the heat back to (electric) power. Even though these systems were already proposed in the 19th century, it is only in the recent years that this field experiences a rapid development, which is associated mostly with the increasing penetration of intermittent cheap renewables in power grids and the requirement of electricity storage in unprecedented capacities. Compared to the more established storage options, such as pumped hydro and electrochemical batteries, the efficiency is generally much lower, but the low cost of thermal energy storage in large scale and long lifespans comparable with thermal power plants make this technology especially feasible for storing surpluses of cheap renewable electricity over typically dozens of hours and up to days. Within the increasingly extensive scientific research of the Carnot Battery technologies, commercial development plays the major role in technology implementation. This review addresses the gap between academia and industry in the mapping of the technologies under commercial development and puts them in the perspective of related scientific works. Technologies ranging from kW to hundreds of MW scale are at various levels of development. Some are still in the stage of concepts, whilst others are in the experimental and pilot operations, up to a few commercial installations. As a comprehensive technology review, this paper addresses the needs of both academics and industry practitioners.

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Section: Electrically Heated Other and Hybrid Systemsmentioning

confidence: 99%

Review of Carnot Battery Technology Commercial Development

et al. 2022

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“…Packed bed storage tank is proposed to optimize the heat transfer performance based on the encapsulated phase change materials (PCMs), which includes two types of microencapsulated PCMs and macroencapsulated PCMs [23][24][25]. Rectangular storage tank has a wide application in the current pilot power plants as a kind of mature technology [26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Design and calculation of a new storage tank for concentrating solar power plant

Mao

Liya

et al. 2015

Energy Conversion and Management

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“…Few works have implemented the use of Fresnel lenses to supply Stirling engines with solar heat. Acharya and Bhattacharjee (2014) enclosed the Stirling engine heater with a capsule that has its upper hemisphere made up of Fresnel lenses. Cheng et al (2016) achieved 718 °C on the heater of a Stirling engine with a biaxially tracked 1.3 m × 0.9 m Fresnel lens.…”

Section: Introductionmentioning

confidence: 99%

Application-based design of the Fresnel lens solar concentrator

Qandil

Wang

2019

Renewables

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A novel genetically themed hierarchical algorithm (GTHA) has been investigated to design Fresnel lens solar concentrators that match with the distinct energy input and spatial geometry of various thermal applications. Basic heat transfer analysis of each application decides its solar energy requirement. The GTHA incorporated in MATLAB ® optimizes the concentrator characteristics to secure this energy demand, balancing a minimized geometry and a maximized efficiency. The optimum concentrator is then simulated to ensure the algorithm validity. To verify the algorithmic-optimization and simulation-validation processes, two experimental applications were selected from the literature, a solar welding system for H13 steel plates and a solar Stirling engine with an aluminum-cavity receiver attached to the heater section. In each case, a flat Fresnel lens with a spot focus was algorithmically designed to supply the desired solar heat, and then a computer simulation of the optimized lens was conducted showing great comparability to the original experimental results.

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Stirling engine based solar-thermal power plant with a thermo-chemical storage system

Cited by 24 publications

References 28 publications

Review of Carnot Battery Technology Commercial Development

Review of Carnot Battery Technology Commercial Development

Design and calculation of a new storage tank for concentrating solar power plant

Application-based design of the Fresnel lens solar concentrator

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