Numerical Study of Solar Chimney with Absorber at Different Locations

Main Article Content

Karima E. Amori
Khawla Naeem Hmood

Abstract

Heat transfer process and fluid flow in a solar chimney used for natural ventilation are investigated numerically in the present work. Solar chimney was tested by selecting different positions of absorber namely: at the back side, front side, and at the middle of the air gap. CFD analysis based on finite volume method is used to predict the thermal performance, and air flow in two dimensional solar chimney under unsteady state condition, to identify the effect of different parameters such as solar radiation. Results show that a solar chimney with absorber at the middle of the air gap gives better ventilation performance. A comparison between the numerical and previous experimental results shows fair agreement.

Article Details

Section

Articles

How to Cite

“Numerical Study of Solar Chimney with Absorber at Different Locations” (2013) Journal of Engineering, 19(04), pp. 485–499. doi:10.31026/j.eng.2013.04.06.

References

Al Mossowi A.N., Turbulent developing flow and heat transfer in a porous square duct, MSc. Thesis, Mechanical and Construction Department, University of Technology, Baghdad, Iraq 2001, (written in Arabic)

Andronikos E.F., Dionysios M., Evngellos B., Michalis GR.V., Maria K.K., Stamatis A.M., Study of natural convection phenomena inside a wall solar chimney with one wall adiabatic and one wall under a heat flux, Applied thermal engineering 27 (2007) 2266-2275.

Awbi H.B., Gan G., Simulation of solarinduced ventilation, Renewable Energy Technology and the Environment 4 (1992) 2016–2030.

Bansal NK, Mathur R. Solar chimney for enhanced stack ventilation. Build Environ 28 (1989) 373–7.

Bassiouny R., Korah N.S.A., Effect of solar chimney inclination angle on space flow pattern and ventilation rate, Energy and Buildings 41 (2009) 190-196.

Bouchair A., Fitzgerald D., The optimum azimuth for a solar chimney in hot climates, Energy and Building 12 (1988) 135-140.

Chantawong P., Hirunlabh J., Zeghmati B., Khedari J., Teekasap S., Win M.M., Investigation on thermal performance of glazed solar chimney walls, Solar Energy, 80 (2006) 288-297.

Eckert E., Jackson T.W., Analysis of turbulent free convection boundary layer on flat plate, (Report 1015, (1950) supersedes NACA TN 2207).

Gan G., Simulation of buoyancy-driven natural ventilation of buildings-impact of computational domain, Energy and Building 42 (2010) 1290-1300.

Harris D.J., Helwig N., Solar chimney and building ventilation, Applied Energy 84 (2007) 135–146.

Jia H., Li J., Duanmu X., Li Y., Sun Y., Study on the air movement character in solar wall system, College of architecture and civil engineering, Beijing university of technology, (2007), Beijing, 100022 Building simulation.

Kaiser A.S, Zamora B., Optimum wall-to-wall spacing in solar chimney shaped channels in natural convection by numerical investigation, Applied thermal Eng. 29 (2009) 762–769.

Kasayapanand N., Enhanced heat transfer in inclined solar chimneys by electrohydrodynamic technique, School of Energy, Environment, and Materials 1 (2007) 0960-1481.

Lee K.H., Strand .K., Enhancement of natural ventilation in buildings using a thermal chimney, Energy and Buildings 41 (2009) 615–621.

Mathur J., Bansal N.K, Mathur S., Anupma J.M., Experimental investigations on solar chimney for room ventilation, Solar Energy 80 (2006) 927–35.

Mohammed S.W., Experimental and numerical studies of solar chimney for natural ventilation in Iraq, MSc. thesis, Mechanical Eng. dept. , college of Eng., University of Baghdad, 2010.

Morsi Y.S., Clayton B. R., Determination of principal characteristics of turbulent swirling flow along annuli, Int. J. Heat and Fluid Flow 7 (1980) 208-222.

Ong K.S., A mathematical model of a solar chimney. Renewable Energy 28 (2003) 1047–60.

Ong K.S., Chow C.C., Performance of a solar chimney. Solar Energy 74 (2003) 1–17.

Patankar S.V., Numerical heat transfer and fluid flow, McGraw Hill, 1980, New York. Rahimi M., Bayat M.M., An experimental study of naturally driven heated air flow in a vertical pipe, Energy and Buildings 43 (2011) 126-129.

Tan A.Y.K., Wong N.H., Natural ventilation performance of classroom with solar chimney system, Energy and Buildings 53 (2012) 19–27.

Taylor, Rance J., Medwell J.O., Turbulent flow and heat transfer in rotating ductspreliminary results, Numerical methods for non-linear problems, Pincridge Press Swansea, U.K., 2 (1984) 839-847.

Versteeg H.K., Lasekera W. Mala, An introduction to computational fluid dynamics. The Finite Volume Method, 1st Pub., (1995) Long Man Group Ltd.

Similar Articles

You may also start an advanced similarity search for this article.

Most read articles by the same author(s)