Parametric optimization of an impingement jet solar air heater for active green heating in buildings using hybrid CRITIC-COPRAS approach

Kumar, Raj; Kumar, Sushil; Ağbulut, Ümit; Gürel, Ali Etem; Alwetaishi, Mamdooh; Shaik, Saboor; Saleel, C Ahamed; Lee, Daeho

doi:10.1016/j.ijthermalsci.2023.108760

Cited by 18 publications

(1 citation statement)

References 68 publications

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“…Ch et al [70] proposed an MCDM method which combined COPRAS and grey relation analysis to measure the usage of websites. Kumar et al [71] determined the best parameter combination by using inter-criteria correlation and COPRAS hybrid techniques in a solar air-heating system.…”

Section: Copras Methodsmentioning

confidence: 99%

An Online Review-Driven Picture Fuzzy Multi-Criteria Group Decision-Making Approach for Evaluating the Online Medical Service Quality of Doctors

Shi,

Peng

2024

Symmetry

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In order to further investigate the level of online medical services in China and improve the medical experience of patients, this study aims to establish an online review-driven picture fuzzy multi-criteria group decision-making (MCGDM) approach for the online medical service evaluation of doctors. First, based on the Aczel–Alsina t-norm and t-conorm, the normal picture fuzzy Aczel–Alsina operations involving a variable parameter are defined to make the corresponding operations more flexible than other operations. Second, two picture fuzzy Aczel–Alsina aggregation operators are developed, and the corresponding properties are discussed as well. Third, combined with the online review information of China’s medical platform Haodaifu, the online review-driven evaluation attributes and their corresponding weights are obtained, which can make the evaluation model more objective. Fourth, an extended normal picture fuzzy complex proportional assessment (COPRAS) decision-making method for the service quality evaluation of online medical services is proposed. Finally, an empirical example is presented to verify the feasibility and validity of the proposed method. A sensitivity analysis and a comparison analysis are also conducted to demonstrate the effectiveness and flexibility of the proposed approach.

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Section: Copras Methodsmentioning

confidence: 99%

An Online Review-Driven Picture Fuzzy Multi-Criteria Group Decision-Making Approach for Evaluating the Online Medical Service Quality of Doctors

Shi,

Peng

2024

Symmetry

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Natural and sustainable thermal storage solution for solar distillation system using sensible fiber material and latent PCM: Enhanced energy storage application

Thakur,

Kumar

2024

Heat Trans

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The current research work involves the design and performance assessment of a solar still, which is a conventional single‐slope basin‐type solar still (CSSBTSS) and a modified single‐slope basin‐type solar still (MSSBTSS) under the meteorological conditions of Solan city, Himachal Pradesh, India (30.90° N, 77.09° E). The individual and the combined effect of different sample quantities of sensible Himalayan Rambaan fibers (HRFs) and mass of latent paraffin wax (PW) A48 on the performance of MSSBTSS is evaluated and compared with CSSBTSS. The use of HRF material enhanced the evaporation rate significantly and improved the daytime distillates. Besides, different masses of latent PW filled inside the aluminum tubes improved the nocturnal distillates. For the analysis, three cases have been considered which are, namely: Case 1, solar still with sensible HRFs (MSSBTSS‐HRF); Case 2, solar still with latent PW A48 (MSSBTSS‐PW); and Case 3, solar still with sensible and latent material (MSSBTSS‐HRF‐PW). The results showed that the maximum thermal efficiency for Cases 1 and 2 was improved by 30.02% and 42.41% with five sample quantities of HRF material and 5000 g of PW. For Case 3, the maximum energy efficiency was 90.71% with a gain of 45.16% over CSSBTSS. The economic analysis concluded that the cost per liter of distillate yield produced using MSSBTSS‐HRF‐PW and CSSBTSS is ₹1.5 and ₹1.6, respectively. These outcomes showed the great potential of MSSBTSS‐HRF‐PW approach towards enhancing the overall performance and cost‐effectiveness of solar still.

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Correlation proposing and ANN modelling of thermohydraulic performance for delta-shaped winglet-type solar water heating system

Khargotra,

Kumar,

Singh

et al. 2024

J Therm Anal Calorim

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Parametric optimization of an impingement jet solar air heater for active green heating in buildings using hybrid CRITIC-COPRAS approach

Cited by 18 publications

References 68 publications

An Online Review-Driven Picture Fuzzy Multi-Criteria Group Decision-Making Approach for Evaluating the Online Medical Service Quality of Doctors

An Online Review-Driven Picture Fuzzy Multi-Criteria Group Decision-Making Approach for Evaluating the Online Medical Service Quality of Doctors

Natural and sustainable thermal storage solution for solar distillation system using sensible fiber material and latent PCM: Enhanced energy storage application

Correlation proposing and ANN modelling of thermohydraulic performance for delta-shaped winglet-type solar water heating system

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