Design and performance optimization of solar water heating system with perforated obstacle using hybrid multi-criteria decision-making approach

Khargotra, Rohit; Kumar, Raj; Sharma, Ashutosh; Singh, Tej

doi:10.1016/j.est.2023.107099

Cited by 12 publications

(6 citation statements)

References 45 publications

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“…Nowadays, solar thermal technology, which converts solar energy into usable thermal energy, is generally regarded as a simple and effective way to harness solar radiation and address both the energy crisis and environmental concerns. Solar water heating systems (SWHS) are widely adopted by households worldwide due to their cost effectiveness, which is one of the most common applications of solar thermal technology [15]. They use solar energy to heat water to provide hot water for buildings.…”

Section: Components and Performance Of Solar Thermal Systemmentioning

confidence: 99%

“…Valves and pumps are typically used in the piping system to control the flow of water. Introducing obstacles of various shapes in the fluid path is one method to increase the efficiency of SWHS (Solar Water Heating Systems) [15].…”

Section: Piping Systemmentioning

confidence: 99%

“…By introducing obstacles to the flow of fluids, vortices are created, facilitating effective liquid mixing and enhancing heat transfer. These obstacles not only alleviate pressure drop penalties but also promote increased heat transfer rates [15]. As examples, the effect of obstruction enhancers is given in [19], and the effect of utilizing a helical enhancer in an absorber pipe is described in [42].…”

Section: Piping Systemmentioning

confidence: 99%

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Application of Photovoltaic and Solar Thermal Technologies in Buildings: A Mini-Review

Xiao,

Lai,

Chen

et al. 2024

Coatings

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Buildings account for a significant proportion of total energy consumption. The integration of renewable energy sources is essential to reducing energy demand and achieve sustainable building design. The use of solar energy has great potential for promoting energy efficiency and reducing the environmental impact of energy consumption in buildings. This study examines the applications of photovoltaic and solar thermal technologies in the field of architecture, demonstrating the huge potential of solar energy in building applications. To ensure a fresh and thorough review, we examine literature that encompasses the advancements made in the utilization of solar energy in buildings over the past decade. The key factors to consider in this study are reliability, performance, cost and aesthetics in real applications of photovoltaic and solar thermal technologies in the field of architecture, which have a significant impact on people’s acceptance of solar energy technology. Recent developments in feasible and effective optimization solutions for solar energy technologies are summarized. Accurate and convenient simulation techniques are also summarized for reference. The results show that the rapid progress of BIPV systems is fueled by advancements in three crucial areas: enhancing solar cell and module efficiency, reducing manufacturing costs and achieving a competitive levelized cost of electricity. The results can provide researchers with a reference for understanding recent technological developments in the integration of solar energy into buildings.

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Section: Components and Performance Of Solar Thermal Systemmentioning

confidence: 99%

Section: Piping Systemmentioning

confidence: 99%

Section: Piping Systemmentioning

confidence: 99%

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Application of Photovoltaic and Solar Thermal Technologies in Buildings: A Mini-Review

Xiao,

Lai,

Chen

et al. 2024

Coatings

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“…The TT is usually made of metallic material, with proper dimensioning. TT is also considered the eddy generator that enhances the HT coefficient [ [14] , [15] , [16] , [17] , [18] ]. The goal of the current study is to provide the necessary information of twisted tape geometry fixed in the tube for the thermal enhancement of the system [ [19] , [20] , [21] , [22] , [23] ].…”

Section: Introductionmentioning

confidence: 99%

A review of different twisted tape configurations used in heat exchanger and their impact on thermal performance of the system

Khargotra

Kumar

Nadda

et al. 2023

Heliyon

Self Cite

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“…Salman et al [33] investigated the effect of the flow and geometric parameters of a dimple-roughened absorber plate on the enactment of solar air collectors (SACs) with air-impinged jets. Khargotra et al [34] focused on the design and optimization of a solar water heating system (SWHS) integrated with perforated delta obstacles. Investigation and optimization were performed regarding the effects of the Reynolds number, angle of attack, and pitch ratio on the thermo-hydraulic performance, friction factor, and Nusselt number.…”

Section: Introductionmentioning

confidence: 99%

Parabolic Air Collectors with an Evacuated Tube Containing Copper Tube and Spiral Strip, and a New Cavity Receiver: Experimental Performance Analysis

et al. 2023

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Sunray thermal energy is one of the most promising and quickly growing techniques globally. In parabolic trough air collectors (PTAC), receiver design and safety are of paramount importance because of their impact on the overall effectiveness of power plants. However, experimental studies of alternative receivers to improve heat transfer are still to be performed. In this study, a PTAC system was tested experimentally with an evacuated tube: open on one end, containing a copper tube and a spiral strip (case 1), and with a new cavity receiver consisting of several arranged tetragonal pyramidal elements (case 2). Afterward, the results were compared and showed a slightly superior exit air temperature and thermal efficiency performance for case 1. The overall results demonstrate a remarkable convergence of case 2 from case 1 in terms of temperature increase across PTAC, in which the maximum exit air temperature for case 1 is 58.2 °C, a 3.4% increase over case 2 at 0.0105 kg/s mass flow rate. Lastly, the results validate the potential and clarify the specific conclusions of these methods’ application in improving heat exchange in a PTAC.

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Design and performance optimization of solar water heating system with perforated obstacle using hybrid multi-criteria decision-making approach

Cited by 12 publications

References 45 publications

Application of Photovoltaic and Solar Thermal Technologies in Buildings: A Mini-Review

Application of Photovoltaic and Solar Thermal Technologies in Buildings: A Mini-Review

A review of different twisted tape configurations used in heat exchanger and their impact on thermal performance of the system

Parabolic Air Collectors with an Evacuated Tube Containing Copper Tube and Spiral Strip, and a New Cavity Receiver: Experimental Performance Analysis

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