【摘要】 提出了一套多功能CO₂水源热泵驱动的溶液除湿新风系统,该系统以CO₂跨临界循环压缩机高温排气实现LiCl溶液再生,提高了热泵驱动溶液除湿系统的溶液再生效率,并以地下水为再冷源,减小了CO₂跨临界循环节流损失。通过建立系统稳态数学模型,模拟分析了标准环境工况下,新风量、除湿/再生内循环比、溶液总流量、再生空气流量等4个可控关键因素对系统性能的影响,并将系统应用于西安市某200 m²办公建筑,得到了4个可控参数设置的最佳组合。更多还原

【Abstract】 A multifunctional CO₂ water source heat pump for driving solution dehumidification fresh air system is proposed. The system uses the high temperature compressor exhaust of CO₂ transcritical cycle to regenerate LiCl solution and thus the regeneration efficiency will be improved. The groundwater is served as re-cooling source to reduce the throttle loss of CO₂ transcritical cycle. The effects of four controllable key factors including fresh air volume,dehumidification or regeneration internal circulation ratio, total solution flow and regeneration air flow on the system performance under standard environmental conditions are studied through the establishment of steady mathematical model. The optimal combination of the above four controllable parameter settings are obtained by applying the system to a 200 m² office building in Xi’an.更多还原