Performance of a Hybrid Fresh-Air System with Dew-Point Evaporative Cooling and Battery Energy Storage

Nie Dali; Chun Liang; Wang Shunsen

doi:10.12465/issn.0253-4339.20260803001

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Performance of a Hybrid Fresh-Air System with Dew-Point Evaporative Cooling and Battery Energy Storage

更新时间：2026-10-19

- Performance of a Hybrid Fresh-Air System with Dew-Point Evaporative Cooling and Battery Energy Storage
- Journal of Refrigeration Pages: 1-8(2026)
- 作者机构：
  
  1.西南科技大学土木工程与建筑学院绵阳 621010
  2. 成都巨量引擎信息技术有限公司成都 610095
- 作者简介：
  
  Chun Liang， male， Ph. D.， associate professor，School of Civil Engineering and Architecture，Southwest University of Science and Technology. 86-18846168573， E-mail： chunliang@swust.edu.cn. Research fields： evaporative cooling， vacuum membrane dehumidification， and building energy efficiency.
- 基金信息：
  
  the National Natural Science Foundation of China(52408135)
- DOI：10.12465/issn.0253-4339.20260803001
  CLC： TB61⁺1;TU831.5
- Received：03 August 2026，
  
  Revised：2026-08-08，
  
  Accepted：24 September 2026，
  
  Online First：19 October 2026，
- 稿件说明：
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聂大力，淳良，王顺森. 电储能露点蒸发冷却复合新风系统性能研究［J］. 制冷学报，XXXX，XX（XX）：1-8.

Nie Dali，Chun Liang，Wang Shunsen. Performance of a Hybrid Fresh-Air System with Dew-Point Evaporative Cooling and Battery Energy Storage［J］. Journal of Refrigeration，XXXX，XX（XX）：1-8.
聂大力，淳良，王顺森. 电储能露点蒸发冷却复合新风系统性能研究［J］. 制冷学报，XXXX，XX（XX）：1-8. DOI： 10.12465/issn.0253-4339.20260803001.

Nie Dali，Chun Liang，Wang Shunsen. Performance of a Hybrid Fresh-Air System with Dew-Point Evaporative Cooling and Battery Energy Storage［J］. Journal of Refrigeration，XXXX，XX（XX）：1-8. DOI： 10.12465/issn.0253-4339.20260803001.

摘要

为评价成都湿润夏季电储能露点蒸发冷却复合新风系统的运行性能，对成都市某办公建筑开展现场测试。依据功率、风速、运行时间和空气状态变化筛得11个工作日6 589个稳定数据点。结果表明：露点蒸发冷却器使新风温度由29.60 ℃降至23.03 ℃，露点效率和湿球效率分别为71.06%和100.34%；蒸发冷却段与机械制冷段焓降分别为3.20 kJ/kg和27.39 kJ/kg，预冷负荷分担率为（10.39±3.31）%，当该值大于9.81%时，系统性能系数（COP）相对变化率为正；系统日均COP为3.16～3.49，预冷耦合系统COP相对变化率为（0.82±4.17）%。30 kW·h储能单元日均可配对移峰11.70 kW·h，理论收益为4.59～5.74元/工作日。蒸发冷却段主要承担显热预冷，机械制冷段负责主体焓负荷和除湿；随室外空气状态调节蒸发冷却段运行，可提高系统工况适应性。

Abstract

A field test was conducted in an office building in Chengdu to evaluate the performance of a fresh-air system integrating electrical energy storage， dew-point evaporative cooling， and mechanical refrigeration under humid summer conditions. A total of 6 589 stable data points over 11 working days were selected based on power， air velocity， operating duration， and air-state variations. The dew-point evaporative cooler reduced the fresh-air temperature from 29.60 ℃ to 23.03 ℃， corresponding to dew-point and wet-bulb effectiveness values of 71.06% and 100.34%， respectively. The enthalpy differences across the evaporative cooling and mechanical cooling sections were 3.20 and 27.39 kJ/kg， respectively. The precooling load fraction was （10.39 ± 3.31）%， and the system coefficient of performance （COP） increased when this ratio exceeded 9.81%. The daily mean COP ranged from 3.16 to 3.49， while its variation after precooling coupling was （0.82 ± 4.17）%. The 30 kW·h battery energy storage unit shifted 11.70 kW·h of load per day， yielding estimated savings of 4.59-5.74 CNY. The evaporative cooling section primarily provided sensible precooling， whereas mechanical refrigeration handled most of the enthalpy load and dehumidification. Adjusting the operation of the evaporative cooling section based on outdoor air conditions can enhance the system's adaptability to operating conditions.

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