Abstract
The solar chimney is a passive solar system which can be used for enhance the natural ventilation and space conditioning of a building. A solar chimney design is modified and installed at CBRI Roorkee (29.87° N 77.88° E), India. A Computational fluid dynamics (CFD) software is used for prediction of velocity and temperature in Modified solar chimney (MSC) and evaluating the Air Change per hour (ACH), which is validated through experimental and theoretical counterpart and found a good agreement between them. From the result of thermal performance analysis, it is found that MSC generates 2.39–7.13 ACH in experimental room in month of May 2013, when outdoor solar radiation was in the range of 250–612 W/m2. Due to this ACH, the room temperature is dropped by 2–4°C as compared to reference room temperature. The parametric study shows that the optimum glass tilt angle estimated by 5 degree for highest performance consideration of MSC. The air gap is optimised by 60 mm and air gap to inlet opening height ratio is optimised by 0.2.
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Lal, S., Kaushik, S.C., and Bhargava, P.K., A Study on Stack Ventilation System and Integrated Approaches, Proc. National Conf. Emerging Trends of Energy Conservation in Buildings, Roorkee: Central Building Research Institute, Nov. 1–3, 2012, pp. 255–263.
Bansal, N.K., Mathur, J., and Bhandari, M.S., Building Environ., 1993, vol. 28, no. 3, pp. 373–377.
Ong, K.S., Renew. Energy, 2003, vol. 28, no. 7, pp. 1047–1060.
Ong, K.S. and Chow, C.C., Solar Energy, 2003, vol. 74, no. 1, pp. 1–17.
Bouchair, A., Building Service Eng., Res. Technol., 1994, vol. 15, no. 2, pp. 81–93.
Gan, G. and Riffat, S.B., Appl. Therm. Eng., 1998, vol. 18, pp. 1171–1187.
Gan, G.A., Energy Buildings, 1998, vol. 27, pp. 37–43.
Chen, Z.D. and Li, Y., Ventilation and Energy Conservation in Buildings Hunan, 2001, pp. 1447–1454.
Chen, Z.D., Bandopadhayay, P., Halldorsson, J., et al., Building Environ., 2003, vol. 38, pp. 893–906.
Barozzi, G.S., Imbabi, M.S.E., Nobile, E., and Sousa, A.C.M., Building Environ., 1992, vol. 27, no. 4, pp. 433–445.
Awbi, H.B. and Gan, G., Renew. Energy Technol. Environ., 1992, vol. 4, pp. 2016–2030.
Zamora, B. and Kaiser, A., Appl. Therm. Eng., 2009, vol. 29, no. 4, pp. 762–769.
Shen, J., Lassue, S., Zaleswski, L., and Huang, D., Energy Buildings, 2007, vol. 39, pp. 962–974.
ANSYS Workbench 14.0, Canonsburg, PA: ANSYS, Inc. Canonsburg, Pennsylvania, USA.
Fidaros, D., Baxevanou, C., Papanastaiou, D., et al., Proc. 3rd Int. Conf. PPALENC, Rhodes, Sept. 29–Oct. 1, 2010, pp. 1–12.
Ferziger, J.H. and Perić, M., Computational Methods for Fluid Dynamics, Berlin: Springer, 2002.
Kim, S.H. and Huh, K.Y., Int. J. Heat Mass Transfer, 2000, vol. 43, no. 7, pp. 1233–1242.
Mathur, J., Bansal, N.K., Mathur, S., and Anupma, J.M., Solar Energy, 2006, vol. 80, pp. 927–935.
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Lal, S. Experimental, CFD simulation and parametric studies on modified solar chimney for building ventilation. Appl. Sol. Energy 50, 37–43 (2014). https://doi.org/10.3103/S0003701X14010125
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DOI: https://doi.org/10.3103/S0003701X14010125