Indoor Thermal Environment Research of Air Conditioning Office with Air from Window Gap

Abstract:

The paper presents a numerical simulation study of indoor thermal environment of an air conditioning office in winter in Hengyang. Considering the effect of air infiltration from window gap, the distribution of indoor temperature field, velocity field and humidity field can be obtained when air supply angle is 45° down to the horizontal direction. Compared with simulation which air infiltration is ignored, the results show that average temperature of air conditioning area reduces 0.6 °C in Y = 1.1 m section. Air velocity is larger in Y = 1.1 m air conditioning zone. The air speed is greater than 0.2 m/s in local area, a sense blowing. Average relative humidity is larger in Y = 1.1 m air conditioning area. The research indicates that air infiltration can not be allowed to be neglected in numerical simulation.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 1660-1665
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.1660
• Online since: December 2013
• Authors: Ze Hua Liu, Yan Liao, Hao Ping Yu
• Keywords: Air Infiltration, Numerical Simulation, Thermal Environment, Window Gap

References

[1] B. Xia, J. P Liu and D. X Song. Thermal comfort analysis of university dormitories in summer: Heating Ventilation and Air Conditioning Vol. 36(2006), pp.105-108.

[2] T. Y Wang, S. H Zou and K. Q Li. Research of right supply-air angles of interior air-conditioner: Building Energy and Environment Vol. 28(2009), pp.69-71.

[3] X. P Lu, Y. J Yu and C. Y Zhang . Numerical simulation analysis of the influence on the indoor air thermal comfort by the indoor unit's location: Building Energy and Environment Vol. 27(2008), pp.66-68.

[4] J. S Wang, J. Hu and Z. X Chen . Analysis and comparison of four modes of space heating: Heating Ventilation and Air Conditioning Vol. 35(2005), pp.117-120.

[5] B. R Zhu, X. M Yue and C. Y Zhang . Numerical simulation of indoor temperature and velocity distribution in radiator heating room: Building Energy and Environment Vol. 30(2011), pp.92-94.

[6] M. Maerefat, A. Zolfaghari and et al. On the conformity of floor heating systems with sleeping in the eastern-style beds: physiological responses and thermal comfort assessment: Building and Environment Vol. 47(2012), pp.322-329.

DOI: 10.1016/j.buildenv.2011.07.008

[7] Y. Q Lu: Practical Design Manual of Heating and Air Conditioning (Chinese Building Industry Publications, China 2008).

[8] GB 50736-2012: Civil Building Heating Ventilation and Air Conditioning Design Standard (Chinese Building Industry Publications, China 2012).

[9] F. J Wang: Computational Fluid Dynamics Analysis (Tsinghua University Publications, China 2004).

[10] Q. Y Chen, W. R Xu. A zero-equation turbulence model for indoor airflow simulation: Energy and Building Vol. 28(1998), pp.137-144.

DOI: 10.1016/s0378-7788(98)00020-6