溶液调湿空调在医药厂房工程应用的碳减排潜力分析
Carbon Reduction Potential of Liquid-Desiccant Based Air-Conditioning System Applied in Pharmaceutical Workshops
关博文 1杨浩波 1陈亮亮 2张涛 3刘晓华3
作者信息
- 1. 西安交通大学 人居环境与建筑工程学院,西安 710049
- 2. 北京华创瑞风空调科技有限公司,北京 100084
- 3. 清华大学 建筑学院,北京 100084
- 折叠
摘要
众多医药生产车间要求低湿环境,需要送风含湿在7g/kg甚至5g/kg以下,常规7℃冷冻水驱动的冷冻除湿方式难以完成上述除湿任务,因而医药厂房通常采用转轮除湿系统对空气进行湿处理以满足环境热湿控制需求.然而,转轮系统所需再生温度较高,通常使用高温蒸汽或电加热器作为再生热源,限制了系统的低碳化运行.溶液空调系统具有利用低品位冷热源的优势,但现有研究对于溶液空调技术在医药建筑中应用可行性研究尚不充分,无法揭示其在医药建筑应用的节能减排潜力.因此,现场测试了溶液空调系统在某试点医药厂房的实际应用效果,对比了其与常规转轮系统的性能差异并阐明差异原因.示范工程应用结果表明,一次回风系统送风含湿量在6g/kg左右时,溶液系统可以将再生热源温度从100℃以上降至50℃以下,相较于常规转轮系统的节能比率为 15%～45%,典型工况下的碳减排率为 20.7%.以期为医药建筑低碳化发展提供经验参考与数据支撑.
Abstract
Numerous pharmaceutical workshops require low humidity environments with a supply air humidity ratio below 7 or 5 g/kg,and the conventional condensing dehumidification method powered by 7℃ chilled water cannot fulfill the dehumidification mission.The desiccant-wheel based dehumidification system is usually adopted to meet the demand.However,the required high-temperature heating source limits the system energy performance.Although liquid-desiccant based dehumidification system is feasible to utilize the low-grade cooling and heating sources,technoeconomic performance of the liquid-desiccant system in the pharmaceutical environments has not been fully investigated in previous studies.To address the gap,on-site measurements are conducted to reveal the feasibility of the liquid-desiccant system applied in a pharmaceutical factory.The results indicate that the regeneration temperature can be reduced from over 100℃ to below 50℃ by the liquid-desiccant device,and an energy saving rate of 15％～45％can be achieved when the supply air is dehumidified to around 6 g/kg.The carbon emission reduction rate can reach 20.7％in the baseline scenario.It is anticipated that this study could provide reference for decarbonization in pharmaceutical industry sector.
关键词
暖通空调/溶液除湿/医药厂房/建筑节能/碳减排Key words
heating,ventilation,and air-conditioning/liquid desiccant dehumidification/pharmaceutical factory/building energy efficiency/carbon emission reduction引用本文复制引用
基金项目
国家自然科学基金资助项目(522781144)
国家重点研发计划资助项目(2022YFC3802505)
出版年
2024
NETL
NSTL
万方数据