Volume 19, Issue 10 (October 2019)                   Modares Mechanical Engineering 2019, 19(10): 2397-2407 | Back to browse issues page

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1- Department of Mechanical Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran
2- Department of Mechanical Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran , arostamzadeh@iaut.ac.ir
Abstract:   (5340 Views)
The aim of this study is the modeling of the solar chimney for achieving the relation between turbine output power and geometrical parameters. In this regards, 9 different models are determined based on the variety of chimney height and diameter for investigating the effects of geometrical parameters on the turbine performance. As well as, in order to improvement of system performance, the hydrophobic surfaces were evaluated with consideration of friction reduction by verification of slip condition on walls. The k-ε turbulent model was used to modeling turbulence flow and reverse-fan model was employed for simulating the turbine. For this purpose, the extracted data from the mass flow rate and velocity changes were validated with prior studies and then were compared in different pressure jumps in order to better comprehension of the performance of the turbine. The optimization was done through the defined models and it was observed that to have a better and optimized design, the geometrical parameters should have been considered in the system design simultaneously. Meanwhile, the chimney diameter should have been paid more attention as one of the most important design parameters. Also, the precise correlation was represented to estimate the turbine output power with respect to the height and diameter of the chimney. Furthermore, based on the applying of slip condition on walls for simulating hydrophobic surfaces, shear stresses reduction was done and it was revealed that the hydrophobic surfaces could have a positive effect on the performance of SCPP up to 5 percent.
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Article Type: Original Research | Subject: Renewable Energy
Received: 2018/12/17 | Accepted: 2020/03/3 | Published: 2019/10/22

1. Ghalamchi M, Kasaeian A, Ghalamchi M, Hajiseyed Mirzahosseini AR. An experimental study on the thermal performance of a solar chimney with different dimensional parameters. Renewable Energy. 2016;91:477-483. [Link] [DOI:10.1016/j.renene.2016.01.091]
2. Ghalamchi M, Kasaeian A, Ghalamchi M. Experimental study of geometrical and climate effects on the performance of a small solar chimney. Renewable and Sustainable Energy Reviews. 2015;43:425-431. [Link] [DOI:10.1016/j.rser.2014.11.068]
3. Haaf W, Friedrich K, Mayr G, Schlaich J. Solar chimneys part I: Principle and construction of the pilot plant in Manzanares.International Journal of Solar Energy. 1983;2(1):3-20. [Link] [DOI:10.1080/01425918308909911]
4. Haaf W. Solar chimneys part II: Preliminary test results from the Manzanares pilot plant. International Journal of Solar Energy. 1984;2(2):141-161. [Link] [DOI:10.1080/01425918408909921]
5. Sangi R, Amidpour M, Hosseinizadeh B. Modeling and numerical simulation of solar chimney power plants. Solar Energy. 2011;85(5);829-838. [Link] [DOI:10.1016/j.solener.2011.01.011]
6. Dehghani S, Mohammadi AH. Optimum dimension of geometric parameters of solar chimney power plants - a multi-objective optimization approach. Solar Energy. 2014;105:603-612. [Link] [DOI:10.1016/j.solener.2014.04.006]
7. Patel SK, Prasad D, Rafiuddin Ahmed M. Computational studies on the effect of geometric parameters on the performance of a solar chimney power plant. Energy Conversion and Management. 2014;77:424-431. [Link] [DOI:10.1016/j.enconman.2013.09.056]
8. Vieira RS, Petry AP, Rocha LAO, Isoldi LA, Dos Santos ED. Numerical evaluation of a solar chimney geometry for different ground temperatures by means of constructal design. Renewable Energy. 2017;109:222-234. [Link] [DOI:10.1016/j.renene.2017.03.007]
9. Maia CB, Ferreira AG, Valle RM, Cortez MFB. Theoretical evaluation of the influence of geometric parameters and materials on the behavior of the airflow in a solar chimney. Computers & Fluids. 2009;38(3);625-636. [Link] [DOI:10.1016/j.compfluid.2008.06.005]
10. Li JY, Guo PH, Wang Y. Effects of collector radius and chimney height on power output of a solar chimney power plant with turbines. Renewable Energy. 2012;47:21-28. [Link] [DOI:10.1016/j.renene.2012.03.018]
11. Yoon M, Hwang J, Lee J, Sung HJ, Kim J. Large-scale motions in a turbulent channel flow with the slip boundary condition. International Journal of Heat and Fluid Flow. 2016;61(Pt A):96-107. [Link] [DOI:10.1016/j.ijheatfluidflow.2016.03.003]
12. Derby MM, Chatterjee A, Peles Y, Jensen MK. Flow condensation heat transfer enhancement in a mini-channel with hydrophobic and hydrophilic patterns. International Journal of Heat and Mass Transfer. 2014;68:151-160. [Link] [DOI:10.1016/j.ijheatmasstransfer.2013.09.024]
13. A. Sohankar, M. Riahi, E. Shirani, Numerical investigation of heat transfer and pressure drop in a rotating U-shaped hydrophobic microchannel with slip flow and temperature jump boundary conditions. Applied Thermal Engineering. 2017;117:308-321. [Link] [DOI:10.1016/j.applthermaleng.2017.02.036]
14. Ayadi A, Nasraoui H, Bouabidi A, Driss Z, Bsisa M, Salah Abid M. Effect of the turbulence model on the simulation of the air flow in a solar chimney. International Journal of Thermal Sciences. 2018;130:423-434. [Link] [DOI:10.1016/j.ijthermalsci.2018.04.038]
15. FLUENT. Documentation Manual - FLUENT 17.0. [Internet]. Unknown City: Unknown Publisher; Unknown Year [Unknown cited]. Available from: Not Found [Link]
16. Koonsrisuk A, Chitsomboon T. Mathematical modeling of solar chimney power plants. Energy. 2013;51:314-322. [Link] [DOI:10.1016/j.energy.2012.10.038]
17. Bardina JE, Huang PG, Coakley TJ. NASA-TM-110446: Turbulence modeling validation, testing, and development [Internet]. Washington DC: NASA; 1997 [cited 2018 Sept 03]. Available from: https://ntrs.nasa.gov/search.jsp?R=19970017828 [Link]

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