nav emailalert searchbtn searchbox tablepage yinyongbenwen piczone journalimg journalInfo searchdiv qikanlogo popupnotification paper paperNew
2025, 02, v.47 63-73
空气源热泵用于办公室供暖的数值模拟
基金项目(Foundation): 国家自然科学基金(51774143):废旧锂离子电池中的有价金属在熔盐提取过程中的电化学行为; 中央引导地方科技发展资金项目(236Z1017G):基于第一性原理的氧化物冶金型钢中有益夹杂物粒子吸附聚合研究
邮箱(Email): laotingwhl@163.com;
DOI:
摘要:

为深入研究空气源热泵对办公室供暖的效果,利用SolidWorks建立了带隔断的办公室三维模型,并用ANSYS软件模拟了在办公桌面加装物理隔断前后不同送风速度和送风角度对室内气流场的影响。结果表明:相较于无隔断桌面,加装隔断后室内空气流动更加均匀,办公区域风速降低。此外,在加装物理隔断后,给定1 m/s、1.5 m/s、2 m/s和3 m/s送风速度下,送风角度为30°时,室内温度较为均匀,但办公区域附近形成多个较大的涡旋,办公区域温度较高,且室内温度分层不明显。送风角度为60°和85°时,涡旋的尺寸和数量明显减少,气流场的病态性减弱,温度场变化较为明显,85°送风下办公区域整体温度偏低。2 m/s和3 m/s的空气流动强度较高,人体吹风感较强。综合考虑人体舒适度和房间内风速分布效果,2 m/s风速和60°送风角度工况较好。研究结果为合理优化办公区域工位布置及进一步提升供暖舒适性提供依据。研究结果为合理优化办公区域工位布置及进一步提升供暖舒适性提供依据。

Abstract:

To investigate the impact of air source heat pumps on office heating, a three-dimensional model of an office environment with partitioned workstations was developed using SolidWorks. The airflow and thermal performance under varying air supply velocities and angles were simulated using ANSYS software, considering the scenarios with and without physical desk partitions. The results indicate that the installation of desk partitions leads to a more uniform indoor airflow distribution and reduces wind speed in the office area.At air supply velocities of 1 m/s, 1.5 m/s, 2 m/s, and 3 m/s, when the air supply angle is set to 30°, the indoor temperature distribution is relatively uniform. However, large vortices are observed near the workstation area, resulting in elevated temperatures and minimal thermal stratification. At air supply angles of 60 °and 85 °, the size and number of vortices are significantly reduced, mitigating airflow irregularities. The temperature field exhibits more pronounced changes, with the overall temperature in the office area being lower at an 85°air supply angle. High airflow intensities of 2 m/s and 3 m/s produce noticeable draughts, potentially compromising occupant comfort.Considering human thermal comfort and wind speed distribution, the optimal operating condition is identified as a 2 m/s air supply velocity with a 60°supply angle. These findings provide valuable insights for optimizing workstation layouts and enhancing heating comfort in office environments.

参考文献

[1]Li H,Xu Z,Yang Q,et al.Enhancing partial load efficiency of air source heat pump heating systems:A comprehensive review of magnitude,influencing factors,and improvement strategies[J].Journal of Building Engineering,2024,97:110715.

[2]曹倩,孙乾,金永超.基于LSTM方法的新冠肺炎确诊人数预测模型[J].华北理工大学学报(自然科学版),2023,45(4):85-90.

[3]龚凯,杨美媛.《新冠肺炎》疫情防控下图书馆空调环境卫生现状调查及预防对策[J].华北理工大学学报(自然科学版),2021,43(4):119-126.

[4]Gu Y,Cui T,Liu K,et al.Study on influencing factors for occupant window-opening behavior:Case study of an office building in Xi’an during the transition season[J].Building and Environment,2021,200:107977.

[5]王康悦,郑壮壮,陈明九,等.基于CFD模拟的办公室自然通风方案研究[J].建筑节能,2023,51(12):102-108.

[6]朱辉,陈永平,唐强,等.低温送风散流器结构优化与送风特性数值分析[J].低温与超导,2019,47(6):78-83.

[7]李祥倩,孙万雪,戚素素.室内不同通风方式对流场的影响[J].现代信息科技,2022,6(11):95-98.

[8]Lu Y,Huang J,Wagner D N,et al.The influence of displacement ventilation on indoor carbon dioxide exposure and ventilation efficiency in a living laboratory open-plan office[J].Building and Environment,2024,256:111468.

[9]李冬冬,邵飞,卢宏健,等.低温送风温湿度控制数值仿真研究[J].低温与超导,2019,47(3):72-77.

[10]Liu X,Wang H,Li Z,et al.Effectiveness of natural ventilation through single-sided window opening in air-conditioning rooms[J].Energy and Buildings,2024:114260.

[11]于狄奇.辐射空调室内空气温度及速度分布规律[D].大连:大连理工大学,2023.

[12]王洪利,徐鸿昌.空调房间热环境实测与模拟[J].华北理工大学学报(自然科学版),2021,43(2):72-80.

[13]倪丹,龚波,杨方德.CFD模拟回风设计对某展览厅气流组织的影响[J].暖通空调,2024,54(S1):87-90.

[14]中华人民共和国住房和城乡建设部.GB/T 50736-2003民用建筑供暖通风与空气调节设计规范[S].北京:中国建筑工业出版社,2015.

[15]柯瑶,王汝金,张欢,等.夏热冬冷地区典型城市住宅冬季室内环境热舒适性研究[J].流体机械,2024,52(5):91-98.

[16]刘怀庆.办公室建筑空调房间气流组织和气溶胶传播规律的数值分析[D].西安:西安建筑科技大学,2023.

[17]缪晨,谢晶.冷库空气幕流场的非稳态数值模拟及验证[J].农业工程学报,2013,29(7):246-253.

基本信息:

DOI:

中图分类号:TU832

引用信息:

[1]靳洛,王洪利.空气源热泵用于办公室供暖的数值模拟[J].华北理工大学学报(自然科学版),2025,47(02):63-73.

基金信息:

国家自然科学基金(51774143):废旧锂离子电池中的有价金属在熔盐提取过程中的电化学行为; 中央引导地方科技发展资金项目(236Z1017G):基于第一性原理的氧化物冶金型钢中有益夹杂物粒子吸附聚合研究

检 索 高级检索

引用

GB/T 7714-2015 格式引文
MLA格式引文
APA格式引文