由成家豪、张春路撰写的论文Capacity evaluation of mechanical dehumidification systems: A theoretical framework在Energy Conversion and Management 2023年第295卷在线发表。论文从理论角度探讨了基于蒸气压缩循环的机械除湿能力,给出了一个全新的理论框架,不仅可用以分析现有各种机械除湿系统的除湿能力,而且为构建新的机械除湿系统指明了方向,具有重要的理论意义和应用价值。
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论文摘要:
Vapor compression cycle-based mechanical dehumidification systems are common and have undergone extensive research to augment their dehumidification capacity. Traditional methodologies typically validate these enhancements via experimentation or simulation. In contrast, this study leverages an analytical perspective, developing a theoretical framework to evaluate system capacity. This is achieved through the analysis of the dehumidifying heat exchanger's performance or the impact of the air state entering the heat exchanger. Analytical solutions specific to the finned-tube heat exchanger are derived, establishing evaluation criteria for two distinct cases. These cases are visually represented as dividing lines on the psychrometric chart, fostering a more direct understanding of how system capacity changes with the incoming air state. The soundness of this theoretical framework is confirmed through numerical simulations and experiments and is subsequently applied to analyze various modifications to the traditional mechanical dehumidification system. These include the Cromer cycle, heat pipe, air-to-air heat exchanger, and evaporative cooling. The feasibility of these modifications is explained, and their relative strengths and weaknesses in theory are compared. The proposed framework provides insights into existing technologies and has the potential to stimulate the conception of innovative designs.