CFD, energy, and exergy analysis and sustainability indicators of tilapia fish strips drying using an evacuated tubes indirect solar dryer.

IF 3.9 2区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Scientific Reports Pub Date : 2025-07-17 DOI:10.1038/s41598-025-11230-4

Amena Ali Alsakran, Omar Shahat Younis, András Székács, Omar Saeed, Mohamed Hamdy Eid, Ali Majrashi, Atef Fathy Ahmed, Aml Abubakr Tantawy, Abdallah Elshawadfy Elwakeel

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引用次数: 0

Abstract

This study evaluates the performance of an evacuated tube indirect solar dryer (ETISD) for drying tilapia strips at three thicknesses (4, 8, and 12 mm) using computational fluid dynamics (CFD), energy-exergy analysis, and sustainability indicators. CFD simulations were employed to analyze airflow patterns, temperature distribution, and velocity profiles inside the drying room (DR) across five air velocities (0.02-0.06 m/s). The optimal air flow rate of 0.03 m³/s provided a uniform drying temperature of 74.82 °C, at solar noon. Simulations over two consecutive drying days (8 a.m.-5 p.m.) further assessed thermal and aerodynamic behavior, enhancing system optimization. Energy analysis revealed that the evacuated tube solar collector (ETSC) achieved a maximum input energy of 1311.8 W and useful energy of 682.5 W, with energy efficiencies of 44.5-51.2% (ETSC) and 16.18-21.57% (ETISD). Exergy efficiencies ranged from 8.51 to 21.99% (ETSC) and 29.23-84.76% (ETISD), highlighting thermodynamic performance. Sustainability indicators, including improvement potential (IP) (2.71-6.69 W), waste exergy ratio (WER) (1.15-1.36), and sustainability index (SI) (1.09-1.28), demonstrated the system's environmental and operational viability. These findings underscore the ETISD's effectiveness for sustainable tilapia drying, balancing energy efficiency, thermal performance, and ecological impact.

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利用真空管间接太阳能干燥机对罗非鱼条进行干燥的CFD、能量和火用分析及可持续性指标。

本研究利用计算流体动力学（CFD）、能量-用能分析和可持续性指标，评估了真空管间接太阳能干燥机（ETISD）在三种厚度（4、8和12 mm）下干燥罗非鱼条的性能。采用CFD模拟方法分析了5种风速（0.02 ~ 0.06 m/s）下干燥室内的气流形态、温度分布和速度分布。最佳空气流速为0.03 m3/s，正午时干燥温度为74.82℃。在连续两天（上午8点至下午5点）的模拟中，进一步评估了热学和空气动力学行为，加强了系统优化。能量分析表明，真空管太阳能集热器（ETSC）的最大输入能量为1311.8 W，有效能量为682.5 W，能量效率分别为44.5 ~ 51.2% （ETSC）和16.18 ~ 21.57% （etsd）。火用效率范围为8.51 - 21.99% （ETSC）和29.23-84.76% (etsd)，突出了热力学性能。可持续性指标，包括改进潜力（IP）（2.71-6.69 W）、废物用能比（WER）（1.15-1.36）和可持续性指数（SI）（1.09-1.28），证明了该系统的环境和运营可行性。这些发现强调了ETISD在罗非鱼可持续干燥、平衡能源效率、热性能和生态影响方面的有效性。

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来源期刊

Scientific Reports Natural Science Disciplines-

CiteScore

7.50

自引率

4.30%

发文量

19567

审稿时长

3.9 months

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