An experimental study on energy and exergy performance of a spiral tube receiver for solar parabolic dish concentrator

Thirunavukkarasu, V.; Cheralathan, M.

doi:10.1016/j.energy.2019.116635

Cited by 53 publications

(18 citation statements)

References 26 publications

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“…They reported that the receiver with side reflector and glazing is better than the other two regarding dryness fraction and thermal efficiency. Thirunavukkarasu and Cheralathan [21] experimentally studied the thermal performance of a Scheffler concentrator having a spiral tube receiver. Energy analysis revealed an average thermal efficiency of 56.21% for water heating with average beam radiation 750 W/m 2 .…”

Section: Introductionmentioning

confidence: 99%

Experimental performance analysis of an improved receiver for Scheffler solar concentrator

Malwad¹,

Tungikar²

2020

SN Appl. Sci.

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Section: Introductionmentioning

confidence: 99%

Experimental performance analysis of an improved receiver for Scheffler solar concentrator

Malwad¹,

Tungikar²

2020

SN Appl. Sci.

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“…The useful thermal heat gain from the solar thermal receiver Q r,u calculated as follows [47][48][49][50] :…”

Section: Solar Dish Concentrator With Solar Thermal Receivermentioning

confidence: 99%

Performance optimization of the hybrid HDH‐RO desalination system powered by photovoltaic‐thermal modules using solar dish concentrators

Abdelgaied

Kabeel

Abdullah

2022

Intl J of Energy Research

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The lack of pure water and electricity in remote regions pushes to simulate of an innovative high-productive hybrid desalination system with the lowest power consumption rates, and this represents a major challenge recently. To achieve this goal, the present study aimed to simulate an innovative hybrid HDH-RO desalination system powered by photovoltaic-thermal modules and a solar dish concentrator. The proposed innovative hybrid system is characterized by integrating two common technologies for pure water production namely: HDH desalination unit and RO desalination unit with an energy recovery device. In order to achieve the highest production rates of pure water with the lowest possible rates of power consumption, the proposed innovative hybrid system was provided with photovoltaic-thermal modules and solar dish concentrators, as preheating units to heat the feed water before its entering the HDH-RO desalination unit. The photovoltaic-thermal modules have a dual function: enhancing the performance of photoelectric conversion, and simultaneously preheating the feed water before it enters the spiral coil of the solar dish concentrator. The solar dish concentrator with a solar thermal receiver was purposed to raise the feed water temperatures before it enters the HDH-RO desalination unit, to improve evaporation rates within the HDH unit as well as increase the rates of water permeating for the RO unit. The results indicated that the utilization of the photovoltaic-thermal modules and solar dish concentrators, as preheating units to heat the feed water before its entering the HDH-RO desalination unit has positive effects in terms of increasing the pure water productivity and reducing the rates of power consumption. The productivity of pure water for the innovative hybrid system ranged between 793 and 861 kg/h, with an improvement of 25.

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“…The working fluid gets cooled and then enters to pumping arrangement and then to absorber coil which completes the working cycle. The solar energy first gives its heat to water, this water is converted into steam, then pressurized steam runs the mechanism, and with the help of mechanical energy of this mechanism, pump is operated [29]. Table 4: Output obtained from SPDC system using modified absorber.…”

Section: Experimental Setup and Instrumentationmentioning

confidence: 99%

“…No gap in consecutive turns of coil and even distribution of heat flux on flat spiral coil tubular absorber reduce heat losses [28]. It optimizes the thermal performance of the SPDC system [29]. Solid Edge ST9 software is used for constructing the optimized absorbers' geometry.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance Improvement of Solar Parabolic Dish System Using Modified Spiral Coil Tubular Receiver

Malviya

Baredar

Kumar

2021

International Journal of Photoenergy

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The present research intends to design an efficient receiver for solar thermal applications with a solar dish concentrator system. Thermal and dynamic analysis is carried out for different convolutions of a spiral coil, and experiments are performed for testing the modified absorber. Experimental results are validated for the spiral absorber with numerical results. Three receivers of different numbers of convolutions are analyzed, and simulation steps are performed for these receivers to make improvements in the system efficiency. Finally, 5 convolutions of a spiral coil tubular absorber are taken for the modified design of the system. Absorber position for every spiral convolution is kept at the focus of the concentrated solar dish collector to achieve maximum efficiency. Material used for the reflective surface is anodized aluminum and copper for the absorber. The diameter of the aperture for the parabolic dish collector is 1.4 m. The maximum absorber temperature for May month comes out to be 296°C, and the maximum working fluid outlet temperature is found to be 294.2°C which is near to simulating temperature of 289.59°C and 288.15°C, respectively. This innovative design of the absorber consists of a feature of a 5 mm extension to the spiral tube at the exit and entry; hence, the turbulence effect could be overcome. Experimental thermal efficiency was found the highest (i.e., η th max = 75.98 % ) for May. This work emphasizes on improving thermal performance by obtaining optimum absorber size using convolution strategy. Investigation of 5 convolutions of spiral coil tubular absorber with extended ends for obtaining optimum performance than existing work is the superiority of this work.

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An experimental study on energy and exergy performance of a spiral tube receiver for solar parabolic dish concentrator

Cited by 53 publications

References 26 publications

Experimental performance analysis of an improved receiver for Scheffler solar concentrator

Experimental performance analysis of an improved receiver for Scheffler solar concentrator

Performance optimization of the hybrid HDH‐RO desalination system powered by photovoltaic‐thermal modules using solar dish concentrators

Thermal Performance Improvement of Solar Parabolic Dish System Using Modified Spiral Coil Tubular Receiver

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