Assessing the performance of the airflow window for ventilation and thermal comfort in office rooms

• Autorzy: Fathi Ajirlou Ildar , Kurtay Cüneyt

Identyfikatory

DOI

10.24425/ather.2021.138117

• Języki publikacji: EN

Abstrakty

EN

In the present study performance of an airflow window in removing contaminants as well as providing thermal comfort for the occupants was investigated. Both natural/mixed ventilation methods were studied and the full heating load as well as contaminant sources in the office rooms considered. Then, the local and average temperature, relative humidity, velocity as well as CO2 and dust concentration were extracted from simulation results and compared to criteria in international ventilation standards. It was found that except in the big room having 8 m×6 m flooring, natural ventilation from the airflow window can satisfy the thermal and relative humidity conditions in the international ventilation standard except for the American Society of Heating, Refrigerating and Air-Conditioning Engineers. However, the thermal comfort in the room which was measured by extended predicted mean vote could not be achieved when the window operates in the natural ventilation mode, even with a 0.4 m height opening in the small (3 m×4 m) room. Finally, results indicated that the airflow ventilation system installed in small and medium offices operation can provide indoor condition in the ventilation standard either in natural/mixed operation mode consuming less energy than the traditional heating, ventilation, and air conditioning. Besides, the airflow system not only was not able to provide thermal comfort condition in the big office but also its application was not economically feasible.

Słowa kluczowe

EN

HVAC; natural ventilation; air-flow window; thermal comfort; contaminant removal

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2021
• Tom: Vol. 42, no 3
• Strony: 209--242
• Opis fizyczny: Bibliogr. 33 poz., rys.

Twórcy

autor

Fathi Ajirlou Ildar

• Gazi University, Faculty of Engineering and Architecture, Department of Architecture, Yükseliş 5, 06570 Maltepe-Ankara, Turkey

autor

Kurtay Cüneyt

• Gazi University, Faculty of Engineering and Architecture, Department of Architecture, Yükseliş 5, 06570 Maltepe-Ankara, Turkey

Bibliografia

• [1] Veriche R.K.V., Zamorano M., Carpio M.: Effects of climate change on variations in climatic zones and heating energy consumption of residential buildings in the southern Chile. Energy Build. 215(2020), 109874.
• [2] Gulan M., Salaj M., Rohal’-Ilkiv B.: Application of adaptive multivariable Generalized Predictive Control to a HVAC system in real time. Arch. Control Sci. 24(2014), 1, 67–84.
• [3] Ilbeigi M., Ghomeishi M., Dehghanbanadaki A.: Prediction and optimization of energy consumption in an office building using artificial neural network and a genetic algorithm. Sustain. Cities Soc. 61(2020), 102325.
• [4] Awbi H.B.: Air movement in naturally-ventilated buildings. Renew. Energ. 8(1996), 1–4, 241–247.
• [5] Stavrakakis G.M., Koukou M.K., Vrachopoulos M.Gr., Markatos N.C.: Natural cross-ventilation in buildings: Building-scale experiments, numerical simulation and thermal comfort evaluation. Energ. Build. 40(2008), 9, 1666–1681.
• [6] Bangalee M.Z.I., Lin S.Y., Miau J.J.: Wind-driven natural ventilation through multiple windows of a building: A computational approach. Energ. Build. 45(2012), 317–325.
• [7] Dascalaki E., Santamouris M., Asimakopoulos D.N.: On the use of deterministic and intelligent techniques to predict the air velocity distribution on external openings in single-sided natural ventilation configurations. Sol. Energy. 66(1999), 3, 223–243.
• [8] Liu X., Lv X., Peng Z., Shi C.: Experimental study of airflow and pollutant dispersion in cross-ventilated multi-room buildings: Effects of source location and ventilation path. Sustain. Cities Soc. (2020), 52, 101822.
• [9] Hu Y., Heiselberg P.K., Guo R.: Ventilation cooling/heating performance of a PCM enhanced ventilated window-an experimental study. Energ. Build. 214(2020), 109903.
• [10] Chen Y., Tong Z., Wu W., Samuelson H., Malkawi A., Norford L.: Achieving natural ventilation potential in practice: Control schemes and levels of automation. Appl. Energ. 235(2019), 1, 1141–1152.
• [11] Chen J., Brager G.S., Augenbroe G., Song X.: Impact of outdoor air quality on the natural ventilation usage of commercial buildings in the US. Appl. Energ. 235(2019), 1, 673–684.
• [12] Goudarzi N., Sheikhshahrokhdehkordi M., Khalesi J., Hosseiniirani S.: Airflow and thermal comfort evaluation of a room with different outlet opening sizes and elevations ventilated by a two-sided wind catcher. J. Build. Eng. 37(2021), 102112.
• [13] Park D.Y., Chang S.: Effects of combined central air conditioning diffusers and window-integrated ventilation system on indoor air quality and thermal comfort in an office. Sustain. Cities Soc. 61(2020), 102292.
• [14] Tao Y., Zhang H., Zhang L., Zhang G., Tu J., Shi L.: Ventilation performance of a naturally ventilated double-skin façade in buildings. Renew. Energ. 167(2020), 184–198.
• [15] Tartarini F., Schiavon S., Cheung T., Hoyt T.: CBE thermal comfort tool: online tool for thermal comfort calculations and visualizations. SoftwareX 12(2020), 100563.
• [16] Liu S., Luo Z., Zhang K., Hang J.: Natural ventilation of a small-scale road tunnel by wind catchers: A CFD simulation study. Atmosphere 9(2018), 10, 411.
• [17] Aghakhani M., Eslami G.: Thermal comfort assessment of underfloor vs. overhead air distribution system. J. Appl. Sci. 12(2012), 5, 473–479.
• [18] Michaux G., Greffet R., Salagnac P., Ridoret J.: Modelling of an airflow window and numerical investigation of its thermal performances by comparison to conventional double and triple-glazed windows. Appl. Energ. 242(2019), 27–45.
• [19] Phaff J.C., de Gids W.F., Ton J.A.,. van der Ree D.V., Schijndel L.L.M.: The ventilation of buildings: Investigation of the consequences of opening one window on the internal climate of a room. Report C 448, TNO Inst. for Environmental Hygiene and Health Technology (IMG-TNO), Delft 1980.
• [20] Hashemi, M.M., Nikfarjam A., Raji H.: Novel fabrication of extremely high aspect ratio and straight nanogap and array nanogap electrodes. Microsyst. Technol. 25(2019), 541–549.
• [21] Zhang Y., Olofsson T., Nair G., Zhao C., Yang B., Li A.: Cold windows induced airflow effects on the thermal environment for a large single-zone building. E3S Web Conf., 172(2020), 06003.
• [22] Murmu R., Kumar P., Singh H.N.: Heat transfer and friction factor correlation for inclined spherical ball roughened solar air heater. Arch. Thermodyn. 41(2020), 2, 3–34.
• [23] Roberto R.: Experimental and Numerical Analysis of Heat Transfer and Airflow on an Interactive Building Façade. Univ. Cagliari, Cagliari 2008.
• [24] ANSYS Fluent UDF Manual, http://www.ansys.com
• [25] Gosselin J., Chen Q.: A computational method for calculating heat transfer and airflow through a dual-airflow window. Energ. Build. 40(2008), 4, 452–458.
• [26] Sun H., Zhao L. Zhang Y.: Evaluation of RNG and LES non-isothermal models for indoor airflow using PIV measurement data. T. ASABE 50(2007), 2, 621–631.
• [27] Li X., Yan Y., Tu J.: Evaluation of models and methods to simulate thermal radiation in indoor spaces. Build. Environ. 144 (2018), 15, 259–267.
• [28] Olesen, B.W. and Brager, G.S.: A better way to predict comfort: The new ASHRAE standard, 55(2004), 204–207.
• [29] Patankar S.: Numerical Heat Transfer and Fluid Flow. CRC, Boca Raton 1998.
• [30] Sultanov M.M., Arakelyan E.K., Boldyrev I.A., Lunenko V.S., Menshikov P.D.: Digital twin’s application in control systems for distributed generation of heat and electric energy. Arch. Thermodyn. 42(2021), 2, 89–101.
• [31] Asif M.A.: A Theoretical Study of the Size Effect of Carbon Nanotubes on the Removal of Water Chemical Contaminants. J. Res. Sci., Eng. Technol. 6(2018), 4, 21–27.
• [32] Fuliotto R., Cambuli F., Mandas N., Bacchin N., Manara G., Chen Q.: Experimental and numerical analysis of heat transfer and airflow on an interactive building facade. Energ. Build. 42(2010), 1, 23–28.
• [33] Little W.J.: Mollier Diagram for Air. AEDC Arnold Engineering and Development Center, Arnold Afb Tn, 1963.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).