| 摘要: |
| 本文围绕蒸发式过冷水制取流态冰，提出了一种新型的基于转轮除湿的流态冰制取系统，通过转轮除湿营造低水蒸气分压力环境，实现水滴的管外过冷，避免了传统过冷水法的冰堵问题和真空法能耗高的问题，并且同溶液除湿型制冰方法相比，系统设备简单且除湿效果更好，实现了水滴更大的过冷度，依靠系统自身的冷凝热即可满足转轮再生需求。构建了完整制冰系统并分别建立了转轮除湿模型、二氧化碳热泵模型和蒸发制冰模型，通过模拟分析初步验证了系统的可行性与高效性，并研究了主要运行参数对系统性能的影响。结果表明：在最佳运行工况下，新型流态冰制取系统的制冰性能系数比传统过冷水法提高了25.9%，单周期制冰量提高了4.3倍。 |
| 关键词: 蒸发 转轮除湿 流态冰 二氧化碳热泵 性能系数 |
| DOI： |
| 投稿时间：2022-12-07 修订日期：2023-02-16
录用日期：2023-03-10 |
| 基金项目: |
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| Examining Ice Slurry Production by Evaporative Supercooling Water Based on a Desiccant Wheel |
|
Yue Zheng, Zhang Xiaosong
|
| (School of Energy and Environment, Southeast University) |
| Abstract: |
| A new system based on rotary dehumidification is proposed using evaporative supercooled water to create ice slurry. Rotary dehumidification is employed to reduce the steam partial pressure, generating supercooled water droplets outside heat transfer tubes. This design circumvents the high energy consumption associated with the traditional vacuum method. Additionally, when compared with the solution dehumidification method, this system is simple and has better dehumidification performance. A high degree of supercooling of the water droplets was realized, and the regeneration load of the desiccant wheel was supplemented by the condensation heat from the refrigeration system. A complete ice-making system was constructed, and component models for the desiccant wheel, carbon dioxide heat pump, and evaporative ice-making process were established. The feasibility and efficiency of the system were preliminarily verified by simulation, and the influence of the main operating parameters on the system performance was studied. Under optimal operating conditions, the coefficient of ice production performance for this new system exceeded that of the traditional supercooling water method by 25.9%, and the ice-making capacity in a single cycle increased by 4.3 times. |
| Key words: evaporation desiccant wheel ice slurry carbon dioxide heat pump ice-production performance coefficient |
