Recent developments in heat pump dryers focusing on methods of supplying and reducing their energy consumption

IF 3 3区 工程技术 Q2 CHEMISTRY, ANALYTICAL
Mahdi Deymi-Dashtebayaz, Abubakr Mostafa, Mostafa Asadi, Danial Hosseinzadeh, Julia Khutornaya, Olga Sergienko
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Abstract

This review aims to analyze recent advancements in heat pump dryers (HPDs) with a focus on improving energy efficiency and conservation in drying processes. The objective is to evaluate the components, structures, and refrigerants used in HPDs, examining their environmental impacts and system performance. The methodology includes a comprehensive comparison of various assisted HPD systems, such as infrared-, ultrasound-, and solar-assisted technologies, to assess their experimental benefits and limitations. By using key performance metrics, the paper evaluates the energy efficiencies of HPDs in comparison with traditional drying methods, discussing their applications across different industries. The study also explores the significance of integrating alternative energy sources to enhance the efficiency and economic viability of HPDs. Future research directions are proposed to further develop the technology for commercial use, emphasizing HPDs’ potential to provide energy-efficient and high-quality drying solutions. In quantitative terms, the review notes that the coefficient of performance (COP) for HPDs ranges between 3.5 and 4.5, indicating a significant improvement over traditional drying methods. Specific moisture extraction rate (SMER) values for HPDs are reported to be between 0.8 and 1.2 kg kW−1 h−1, demonstrating superior efficiency in moisture removal. Additionally, specific energy consumption (SEC) for HPDs is found to be 0.5–0.7 kW h kg−1 of evaporated moisture, which is substantially lower compared to conventional dryers. These metrics underscore the energy-saving potential and enhanced performance of HPD technology.

Abstract Image

热泵干燥机的最新发展,重点是供应和降低能耗的方法
本综述旨在分析热泵干燥机(HPDs)的最新进展,重点是提高干燥过程的能效和节能。目的是评估 HPD 中使用的组件、结构和制冷剂,检查其对环境的影响和系统性能。该方法包括对红外线、超声波和太阳能辅助技术等各种辅助 HPD 系统进行综合比较,以评估其实验效益和局限性。通过使用关键性能指标,论文评估了 HPD 与传统干燥方法相比的能效,并讨论了它们在不同行业的应用。研究还探讨了整合替代能源以提高 HPDs 效率和经济可行性的意义。研究还提出了未来的研究方向,以进一步开发该技术的商业用途,强调 HPDs 在提供节能和高质量干燥解决方案方面的潜力。在定量方面,综述指出 HPD 的性能系数(COP)介于 3.5 和 4.5 之间,表明与传统干燥方法相比有显著改善。据报道,HPD 的特定水分萃取率(SMER)值在 0.8 至 1.2 千克千瓦-1 小时-1 之间,表明其除湿效率极高。此外,HPD 的特定能耗(SEC)为 0.5-0.7 kW h kg-1 蒸发水分,大大低于传统干燥机。这些指标强调了 HPD 技术的节能潜力和更高的性能。
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来源期刊
CiteScore
8.50
自引率
9.10%
发文量
577
审稿时长
3.8 months
期刊介绍: Journal of Thermal Analysis and Calorimetry is a fully peer reviewed journal publishing high quality papers covering all aspects of thermal analysis, calorimetry, and experimental thermodynamics. The journal publishes regular and special issues in twelve issues every year. The following types of papers are published: Original Research Papers, Short Communications, Reviews, Modern Instruments, Events and Book reviews. The subjects covered are: thermogravimetry, derivative thermogravimetry, differential thermal analysis, thermodilatometry, differential scanning calorimetry of all types, non-scanning calorimetry of all types, thermometry, evolved gas analysis, thermomechanical analysis, emanation thermal analysis, thermal conductivity, multiple techniques, and miscellaneous thermal methods (including the combination of the thermal method with various instrumental techniques), theory and instrumentation for thermal analysis and calorimetry.
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