An optimization design method and optical performance analysis on multi-sectioned compound parabolic concentrator with cylindrical absorber

Xu, Jing; Chen, Fei; Xia, Entong; Gao, Chong; Deng, Chenggang

doi:10.1016/j.energy.2020.117212

Cited by 21 publications

(8 citation statements)

References 46 publications

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“…There was a 10% to 15% decrease in the flat curve reflector over the other one with involute reflector as a result of an increase in the acceptance angle. A numerical study of Xu et al 10 showed a higher uniform distribution of solar radiation in multi sectioned CPC solar collector over a conventional CPC solar collector under the same conditions. Xia and Chen 11 performed experiments in an ET solar collector coupled to mini CPC reflector.…”

Section: Introductionmentioning

confidence: 93%

Simulation study of compound parabolic collector‐based solar water heating system with thermal energy storage

Christopher

Kumaresan

2021

Energy Storage

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Solar water heating (SWH) systems becomes increasingly popular in modern buildings, due to significant reduction in energy consumption in heating applications. In this work, an active SWH is modeled using TRNSYS software for climatic conditions of Chennai, India, employing an external compound parabolic concentrator solar collector and stratified thermal storage system (STESS). The performance parameters are estimated on the basis of monthly and annual averaged solar fractions (SF) by varying the collector area, mass flow rate, various controller strategies, and STESS geometry. The simulated studies have specified the ability of the optimized system to supply the hot water demand of 280 L d−1 at 60°C, attaining a SF of 0.97. This design strategy can be implemented for the development of an efficient SWH system, utilizing zero energy consumption from conventional resources. The proposed TRNSYS model has been validated using experimental data under similar test conditions. An influence of placing XCPC under evacuated tubes is simulated, resulting 5% improvement in energy gained over an evacuated tube solar collector without XCPC.

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Section: Introductionmentioning

confidence: 93%

Simulation study of compound parabolic collector‐based solar water heating system with thermal energy storage

Christopher

Kumaresan

2021

Energy Storage

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“…The designed sawtooth V-trough cavity was manufactured based on 3D printing technology and additive manufacturing [22,48]. Additive manufacturing integrates computeraided design, material processing, and molding technology [49].…”

Section: The Manufacture Of the Sawtooth V-trough Cavity And The Lase...mentioning

confidence: 99%

“…The cavities commonly used in these systems are a standard V-trough cavity [20] and a standard compound parabolic cavity [21]. The standard compound parabolic cavity is difficult to manufacture [22] and therefore comes at a high cost. The standard V-trough cavity has the advantage of being easy to manufacture and low in cost [23].…”

Section: Introductionmentioning

confidence: 99%

Sawtooth V-Trough Cavity for Low-Concentration Photovoltaic Systems Based on Small-Scale Linear Fresnel Reflectors: Optimal Design, Verification, and Construction

et al. 2023

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Ensuring the uniformity of solar irradiance distribution on photovoltaic cells is a major challenge in low-concentrating photovoltaic systems based on a small-scale linear Fresnel reflector. A novel sawtooth V-cavity design method based on an optimization algorithm to achieve uniform irradiance distribution on photovoltaic cells is presented. The reliability of the design was verified using the Monte Carlo ray-tracing method and a laser experiment. A prototype was built using 3D printing technology with a biodegradable green polymer material known as polylactic acid. The new cavity was compared to the standard V-trough cavity, keeping the cavity aperture, reflective surface area, and photovoltaic cell width constant. In addition, the focal height, number of mirrors, mirror width, and mirror spacing were also kept constant; so, the cost of the two configurations was the same from the point of view of the primary reflector system. The new design ensured the uniform distribution of solar irradiation and significantly reduced the height of the cavity. The significant decrease in the height of the proposed cavity has the following advantages: (i) a decrease in the dimensions of the fixed structure of the small-scale linear Fresnel reflector, thus reducing its cost, (ii) a significant decrease in the surface area exposed to wind loads, thus reducing the cost of the fixed structure and secondary system structures, (iii) a reduction in the difficulty of the manufacture, maintenance, and transportation of the cavity’s reflecting walls, and (iv) an increase in the cooling surface area, which increases the electrical efficiency of the photovoltaic cells.

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“…Simulated studies of PTRs and the approaches for calculating NUHF were part of the study that introduced a NUHF of PT. By inserting eccentric and concentric pipes into a PT solar collector for molten salt, Researchers [23] showed that heat transmission may be increased. A model for a 3D simulation is made.…”

Section: Introductionmentioning

confidence: 99%

Optimizing Thermal Performance in Parabolic Trough Solar Power Systems: An Experimental Design and Analysis

et al. 2024

E3S Web of Conf.

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The efficiency of a Parabolic Trough (PT) Solar Power Plant heavily relies on its thermal performance. Modern technology has allowed for the creation of more efficient methods of producing steam and of collecting solar energy for thermal power generation. Ministry of New & Renewable Energy (MNRE) built and tested an 11.1 m2 parabolic trough concentrator (PTC). A system that generates steam indirectly by using concentrating solar power (CSP) is examined. The study examined absorbers' thermal properties, thermal efficiency of combined thermal exchangers, concentration ratio, heat efficiency, and steam generation to determine their influence on energy efficiency. The experimental findings display that 557.85 watts of energy are absorbed by the PTC receiver. The PT solar plant system has a thermal energy efficiency of 25 to 29 % and a concentration factor of about 200 on average. The parabolic trough concentrator generates a maximum of 9.1 kg.h-1 of steam.

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An optimization design method and optical performance analysis on multi-sectioned compound parabolic concentrator with cylindrical absorber

Cited by 21 publications

References 46 publications

Simulation study of compound parabolic collector‐based solar water heating system with thermal energy storage

Simulation study of compound parabolic collector‐based solar water heating system with thermal energy storage

Sawtooth V-Trough Cavity for Low-Concentration Photovoltaic Systems Based on Small-Scale Linear Fresnel Reflectors: Optimal Design, Verification, and Construction

Optimizing Thermal Performance in Parabolic Trough Solar Power Systems: An Experimental Design and Analysis

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