Energy and exergy analysis of drying terebinth in a far infrared-rotary dryer using response surface methodology

IF 2.8 Q2 THERMODYNAMICS Heat Transfer Pub Date : 2024-07-15 DOI:10.1002/htj.23126

Mohammad Kaveh, Yousef Abbaspour-Gilandeh, Malgorzata Nowacka, Davood Kalantari, Hany S. El-Mesery, Ebrahim Taghinezhad

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Abstract

Water shows a strong tendency to absorb the energy of wavelengths of 3 and 6 µm, which are in the infrared (IR) range. Therefore, IR dryers are used to dry food and fruits that have a high-water content. Thus, modeling and optimizing energy and exergy parameters of terebinth drying in an IR–rotary drum (RD) dryer were evaluated using the response surface methodology. Independent factors included IR power and rotary rotation speed, and response factors were specific energy consumption (SEC), energy efficiency (EFF), exergy efficiency (EXEFF), specific exergy loss (EXLOSS), and exergy improvement potential (EIP). According to the obtained results, the range of EFF and EXEFF was between 28.93%–9.11% and 0.88%–6.62%, respectively. As IR power and RD speed increased, SEC (123.75–39.21 MJ/kg), EXLOSS (3.97–2.97 MJ/kg), and EIP (3.62–1.009 MJ/kg) decreased, while EFF and EXEFF increased. The results obtained in this study showed that the optimal IR drying power is 616.39 W, and the optimal rotary rotation speed is 13.46 rpm.

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利用响应面方法分析远红外旋转式烘干机烘干布袋莲的能耗和放能

水很容易吸收波长为 3 和 6 µm 的能量，这些波长属于红外线（IR）范围。因此，红外线干燥器可用于干燥含水量高的食品和水果。因此，使用响应面方法对红外转鼓（RD）干燥机中风信子干燥的能量和放能参数进行建模和优化评估。独立因素包括红外功率和旋转速度，响应因素包括比能耗 (SEC)、能效 (EFF)、放能效率 (EXEFF)、比能量损失 (EXLOSS) 和放能改进潜力 (EIP)。结果表明，EFF 和 EXEFF 的范围分别在 28.93%-9.11% 和 0.88%-6.62% 之间。随着 IR 功率和 RD 速度的增加，SEC（123.75-39.21 MJ/kg）、EXLOSS（3.97-2.97 MJ/kg）和 EIP（3.62-1.009 MJ/kg）下降，而 EFF 和 EXEFF 增加。研究结果表明，最佳红外干燥功率为 616.39 W，最佳旋转速度为 13.46 rpm。

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