生物质衍生溶剂和低GWP制冷剂作为可持续吸收制冷工作流体
Miguel Viar1, Fernando Pardo1, Gabriel Zarca1
1Department of Chemical and Biomolecular Engineering, Universidad de Cantabria, Av. Los Castros 46, Santander 39005, Spain.
概括
本研究介绍了吸收制冷系统 (ARS) 的绿色有机溶剂和低全球变暖潜力的制冷剂. 新型工作对实现了高性能,为制冷,空调和热 (RACHP) 部门提供了可持续的替代方案.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 热力学是一种热力学.
- 可持续技术 可持续技术
背景情况:
- 制冷,空调和热 (RACHP) 部门对温室气体排放做出了重大贡献.
- 传统的蒸汽压缩循环耗费大量能源,依赖于对环境有害的制冷剂.
- 吸收制冷系统 (ARS) 提供了一个可持续的替代方案,特别是在利用低等级热量时.
研究的目的:
- 调查使用环保,生物基有机溶剂作为ARS工作流体的可行性.
- 评估新的溶剂-制冷剂对,以提高RACHP应用中的效率和减少环境影响.
- 在传统和压缩辅助ARS (CA-ARS) 中评估这些对的热力学性能.
主要方法:
- 根据CHEM21溶剂选择指南,选择五种绿色有机溶剂 (solketal,乙烯碳酸盐,terpinolene,γ-valerolactone,Rhodiasolv PolarClean).
- 量子化学计算 (COSMO-RS) 来评估选定的溶剂与碳水化合物 (HFC) 和烯 (HFO) 之间的亲和力.
- 对二进制系统的蒸气-液体平衡 (VLE) 的实验性确定以及对有前途的对进行热力学评估.
主要成果:
- 确定了有前途的溶剂-制冷剂对,特别是那些使用γ-valerolactone和Rhodiasolv PolarClean的对.
- 在类似的ARS中,获得了0.60的最高报告的性能系数 (COP) 对于基于R-1234ze-(E的对.
- 与传统系统相比,压缩辅助ARS (CA-ARS) 显示出具有竞争力的COP和循环因子 (f).
结论:
- 绿色有机溶剂与低GWP HFC/HFO相结合,是可持续RACHP的可行策略.
- 开发的工作对显示出在RACHP部门减少温室气体排放的巨大潜力.
- 这项研究为更加环保和高效的制冷技术铺平了道路.
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