For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Preface
Impact of the Thermophysical Properties of a Cuo-H2O-Based Nanofluid on the Performance of a Cylindrical Solar Concentrator
p.3
Unsteady Two Dimensional Mixed Convection MHD Couple Stress Fluid Flow through an Inclined Stretching Sheet with Chemical Reaction
p.23
Influence of Non-Linear Radiation and Viscous Dissipation on the Convective Fluid Flow with Variable Viscosity and Quadratic Boussinesq Approximation across a Cylinder with Uniform Heat Flux at the Wall
p.37
Experimental Investigation for the Performance of the Solar Air Dryer with Vortex Generator
p.57
Effective Thermal Conductivity of Structured Porous Medium: Numerical Study
p.69
An Approach in Analyzing Longitudinal Fracture of Inhomogeneous Beams with Using Generalized Viscoplastic Models
p.79
Inhomogeneous Beam of Circular Cross-Section with Concentric Lengthwise Cracks: A Fracture Analysis with Considering Viscoplastic Behaviour
p.85
A Mixed FEM for Simulating Laminated Glass Beam Stiffness and Strength
p.91

Experimental Investigation for the Performance of the Solar Air Dryer with Vortex Generator

Article Preview

Abstract:

Experimental simulations were conducted to analyze the thermal properties of a solar air dryer embedded with a delta-winglet vortex generator (DWVG). The present inquiry goal is to enhance the thermal performance of the solar air dryer. The delta-winglets were placed at the bottom absorber duct surface. Eight pairs of DWVG were considered for relative height (e/H) ratio from 0.2 to 0.6, an angle of attack (ß) was preserved at 60°, and the pitch-ratio (p/e) was equal to 10. This experimental investigation was performed for 0.022kg/s (MFR) and solar irradiance varied from (300 to 920) W/m2. The winglet vortex generators were set in a common flow-down configuration. The impact of (DWVG) on thermal efficiency and useful thermal energy was discussed. The thermal efficiency (η) and useful thermal energy (Qu) at 0.6 (e/H) appear improved up to about 6.5% and 9.4% respectively, higher than a smooth solar air dryer. The (DWVG) affects outlet air temperature, resulting in a considerable increase in the heat transfer convective rate.

You might also be interested in these eBooks
Defect and Diffusion Forum Vol. 419 View Preview

Info:

Periodical:

Defect and Diffusion Forum (Volume 419)

Pages:

57-67

DOI:

https://doi.org/10.4028/p-a8x5o3

Citation:

Cite this paper

Online since:

October 2022

Authors:

Khudheyer S. Mushatet*, Nabaa Mohammed Bader

Keywords:

Solar Air Dryer, Vortex Generator, Winglet

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2022 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] Sunil Chamoli, Ruixin Lu, Dehao Xu, Peng Yu, Thermal performance improvement of a solar air heater fitted with winglet vortex generators, Solar Energy, 159 (2018) 966-983.

DOI: 10.1016/j.solener.2017.11.046

Google Scholar

[2] Dhir VK, Chang F, Yu J, Enhancement of single-phase forced convection heat transfer in tubes using staged tangential flow injection, Final Report, GRI-90/0134, (1990).

Google Scholar

[3] Tiggelbeck, S.T., N.K. Mitra, M. Fiebig, Experimental investigations of heat transfer enhancement and flow losses in a channel with double rows of longitudinal vortex generators, InternatioTIIJI Journal of Heat and Mass Transfer, 36 (1993) 2327-2337.

DOI: 10.1016/s0017-9310(05)80117-6

Google Scholar

[4] G. Biswas as, P. Deb, S. Biswas, Generation of longitudinal streamwise vortices device for improving heat exchanger design, Journal of Heat Transfer 116 (1994) 588–597.

DOI: 10.1115/1.2910910

Google Scholar

[5] G. Biswas, K. Torii, D. Fujii, K. Nishi no, Numerical and experimental determination of flow structure and heat transfer effects of longitudinal vortices in a channel flow, International Journal of Heat and Mass Transfer 39 (1996) 3441–3451.

DOI: 10.1016/0017-9310(95)00398-3

Google Scholar

[6] M. Fiebig, P. Kallweit, N.K. Mitra, St. Tiggelbeck, Heat transfer enhancement and drag by longitudinal vortex generators in channel flow, Exp. Therm. Fluid Sci. 4 (1991) 103-114.

DOI: 10.1016/0894-1777(91)90024-l

Google Scholar

[7] Jain A, Biswas G, Maurya D, Winglet-type vortex generators with common flow-up configuration for fin-tube heat exchangers, Number Heat Transfer PartA, 43 (2003) 201-219.

DOI: 10.1080/10407780307325

Google Scholar

[8] A. Joardar, A.M. Jacobi, Heat transfer enhancement by winglet-type vortex generator arrays in compact plain-fin-and-tube heat exchangers, Int. J. Refrig, 31 (2008) 87-97.

DOI: 10.1016/j.ijrefrig.2007.04.011

Google Scholar

[9] C. Liu, J.T. Teng, J.C. Chu, Y.L. Chiu, S.Y. Huang, S.P. Jin, T.T. Dang, R. Greif, H.H. Pan, Experimental investigations on liquid flow and heat transfer in a rectangular microchannel with longitudinal vortex generators, Int. J. Heat Mass Transf., 54 (2011) 3069-3080.

DOI: 10.1016/j.ijheatmasstransfer.2011.02.030

Google Scholar

[10] P. Promvonge, C. Khanoknaiyakarn, S. Kwankaomeng, C. Thianpong, Thermal behavior in solar air heater channel fitted with combined rib and delta winglet, Int. Commun. Heat Mass Transf., 38 (2011) 749-756.

DOI: 10.1016/j.icheatmasstransfer.2011.03.014

Google Scholar

[11] J.M. Wu, W.Q. Tao, Numerical study on laminar convection heat transfer in a rectangular channel with longitudinal vortex generator, Part A: verification of field synergy principle, Int. J. Heat Mass Transf., 51 (2008) 1179-1191.

DOI: 10.1016/j.ijheatmasstransfer.2007.03.032

Google Scholar

[12] T.M. Liou, C.C. Chen, T.W. Tsai, Heat transfer and fluid flow in a square duct with 12 different shaped vortex generators, ASME J. Heat Transfer 122 (2000) 327–335.

DOI: 10.1115/1.521487

Google Scholar

[13] Chunhua Min, Chengying Qi, Xiangfei Kong, Jiangfeng Dong, Experimental study of a rectangular channel with modified rectangular longitudinal vortex generators, Int. J. Heat Mass Transf., 53 (2010) 3023-3029.

DOI: 10.1016/j.ijheatmasstransfer.2010.03.026

Google Scholar

[14] Caliskan S., Experimental investigation of heat transfer in a channel with new winglet-type vortex generators, Int J Heat Mass Transf., 78 (2014) 604-614.

DOI: 10.1016/j.ijheatmasstransfer.2014.07.043

Google Scholar

[15] C. Habchi, S. Russeil, D. Bougeard, J.L. Harion, T. Lemen, D.D. Valle, H. Peerhossaini, Enhancing heat transfer in vortex generator-type multifunctional heat exchangers, Appl. Therm. Eng., 38 (2012) 14-25.

DOI: 10.1016/j.applthermaleng.2012.01.020

Google Scholar

[16] M.C. Gentry, A.M. Jacobi, Heat transfer enhancement by delta-wing vortex generators on a flat plate: vortex interactions with the boundary layer, Exp. Therm. Fluid Sci., 14 (1997) 231-242.

DOI: 10.1016/s0894-1777(96)00067-2

Google Scholar

[17] M.C. Gentry, A.M. Jacobi, Heat transfer enhancement by delta-wing–generated tip vortices in a flat–plate and developing channel flows, ASME J. Heat Transfer, 124 (2002) 1158–1168.

DOI: 10.1115/1.1513578

Google Scholar

[18] Khudheyer S. Mushatet, Iltifat lazim edan, Effect of winglet vortex generators orientation on heat transfer enhancement, International Journal of Mechanical & Mechatronics Engineering IJMME-IJENS, 18 (2018) 8-24.

Google Scholar

[19] Khudheyer S. Mushatet, Iltifat lazim edan, Effect of winglet vortex generators configuration on thermal performance of a heated rectangular channel, University of Thi Qar Journal for Engineering Sciences, 10.2 (2019) 64- 83.

DOI: 10.31663/tqujes.10.2.325(2019

Google Scholar

[20] Jalal M. Jalil, Khalid A. Ismeal, Sabah T. Ahmed, Numerical and experimental study on heat transfer enhancement by vortex generation, Journal of Engineering and Development, 10 (2006) 107-128.

Google Scholar

[21] Anshuman, p. Singh, N. K. Singh, Numerical analysis of heat transfer in turbulent channel flow with longitudinal vortex generators, International Journal of Research in Management, Science & Technology, 2 (2014) 2321-3264.

Google Scholar

[22] K. Mushatet, S. Nashee, Experimental and computational investigation for 3-D duct flow with modified arrangement ribs turbulators, Thermal Science, 25, (2021) 1653-1663.

DOI: 10.2298/tsci190813093m

Google Scholar

[23] S.R. Nashee, K.S. Mushatet, 3D numerical and experimental analysis for turbulent flow and heat transfer in a duct integrated with ribs turbulators, TEST engineering and management, 83, (2020) 21810-21821.

Google Scholar

[24] Khudheyer S. Mushatet, Nabaa M. Bader, Thermal performance assessment for the solar air collector integrated with ribs turbulators under Nassiriya city climate, Journal of Mechanical Engineering Research and Developments, JERDFO, 45, (2022) 166-174.

Google Scholar

[25] Zhiqi Zhao, Lei Luo, Dandan Qiu, Zhongqi Wang, Bengt Sunden, On the solar air heater thermal enhancement and flow topology using differently shaped ribs combined with delta-winglet vortex generators, Energy 224 (2021) 1-17.

DOI: 10.1016/j.energy.2021.119944

Google Scholar

[26] Teerapat Chompookham, Chinaruk Thianpong, Sutapat Kwankaomeng, Pongjet Promvonge, Heat transfer augmentation in a wedge-ribbed channel using winglet vortex generators, International Communications in Heat and Mass Transfer, 37 (2010) 163–169.

DOI: 10.1016/j.icheatmasstransfer.2009.09.012

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.