American Journal of Mechanical and Industrial Engineering
Volume 3, Issue 4, July 2018, Pages: 39-46
Received: Jun. 6, 2018;
Accepted: Jul. 3, 2018;
Published: Jul. 31, 2018
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Alagappan Narayanan, Department of Mechanical Engineering, Annamalai University, Annamalainagar, India
Karunakaran Narayanaswami, Department of Mechanical Engineering, Annamalai University, Annamalainagar, India
Gunabal Senthilnathan, Department of Mechanical Engineering, Annamalai University, Annamalainagar, India
Heat pipe operates, with a metallic wick (or grooved) installed inside the pipe, containing fluid under a pressure which permits evaporated vapour at the hot side to fill the core of the pipe and travel to the cooled side. The vapour condenses at cold side, transporting heat by this method. This study focuses on the heat transfer performance of flat type internally grooved heat pipe with two different working fluids DI water and TiO2 nano fluid, used with various heat input (50, 60, 70 and 80W) and at two different orientation 45deg and 90deg of the pipe. The fill ratio used was 50% and 70%, concentration and the size of the nano particle were 80 mg/lit and 30 nm respectively. In this setup, the condenser section of the Flat Type Heat Pipe (FTHP) was cooled by rectangular aluminum fins. The result shows that the decisive factors of FTHP are the working fluids, internal grooves and inclination angle. The relatively high rate of heat transfer was achieved while using TiO2 nano fluid at 90deg orientation with a fill ratio of 50% compared to FTHP with DI water.
Performance of TiO2 Nanofluid and DI Water Filled Flat Type Heat Pipe (FTHP) Internally Grooved at Various Fill Ratios and Inclinations, American Journal of Mechanical and Industrial Engineering.
Vol. 3, No. 4,
2018, pp. 39-46.
Faghri, A. Heat Pipe Science and Technology, Taylor -0Francis, 1995.
Shafahi, M., Bianco, V., Vafai, K., and Manca, O. An Investigation of The Thermal Performance of Cylindrical Heat Pipes using Nanofluids, Int. J. Heat Mass Transfer 53 (1–3) (2010) 376–383.
Zhu, N. and Vafai, K. Analysis of Cylindrical Heat Pipes Incorporating The Effects of Liquid–Vapor Coupling and Non-Darcian Transport – A Closed Form Solution, Int. J. Heat Mass Transfer 42 (18) (1999) 3405–3418.
Kang, S. W., Wei, W. C. Tsai, S. H. and Yang, S. Y. Experimental Investigation of Silver Nano-Fluid on Heat Pipe Thermal Performance, Appl. Thermal Eng. 26 (17–18) (2006) 2377–2382.
Kang, S. W., Wei, W. C., and Tsai, C. C. Huang, Experimental Investigation of Nanofluids on Sintered Heat Pipe Thermal Performance, Appl. Thermal Eng. 29 (5–6) (2009) 973–979.
Lin, Y. H., Kang, S. W. and Chen, H. L. Effect of Silver Nano-Fluid on Pulsating Heat Pipe Thermal Performance, Appl. Therm. Eng. 28 (11–12) (2008) 1312–1317.
Ma, H. B. Wilson, C., Borgmeyer, B., Park, K., Yu, Q., Choi, S. U. S. and Tirumala, M. Effect of Nanofluid on The Heat Transport Capability in an Oscillating Heat Pipe, Appl. Phys. Lett. 88 (14) (2006) 143113–143116.
Ma, H. B., Wilson, C., Yu, Q., Park, K. and Choi, M. Tirumala, An Experimental Investigation of Heat Transport Capability in a Nanofluid Oscillating Heat Pipe, J. Heat Transfer 128 (11) (2006) 1213–1216.
Naphon, P. Assadamongkol, P. and Borirak, T, Experimental Investigation of Titanium Nanofluids on The Heat Pipe Thermal Efficiency, Int. Commun. Heat Mass 35 (10) (2008) 1316–1319.
Naphon, P., Thongkum, D. and Assadamongkol, P, Heat Pipe Efficiency Enhancement with Refrigerant–Nanoparticles Mixtures, Energy Convers. Manage. 50 (3) (2009) 772–776.
Tournier, J. M. and El-Genk, M. S, A Heat Pipe Transient Analysis Model, Int. J. Heat Mass Transfer 37 (5) (1994) 753–762.
Tsai, C. Y., Chien, H. T., Ding, P. P., Chan, B., Luh, T. Y. and Chen, P. H, Effect of Structural Character of Gold Nanoparticles in Nanofluid on Heat Pipe Thermal Performance, Mater. Lett. 58 (9) (2004) 1461–1465.
Shafahi, M., Bianco, V., Vafai, K. and Manca, O, Thermal Performance of Flat-Shaped Heat Pipes using Nanofluids, Int. J. Heat Mass Transfer 53 (7–8) (2010) 1438– 1445.
Vafai, K. and Wang, W, Analysis of Flow and Heat Transfer Characteristics of an Asymmetrical Flat Plate Heat Pipe, Int. J. Heat Mass Transfer 35 (9) (1992) 2087–2099.
Vafai, K., Zhu, N. and Wang, W, Analysis of Asymmetric Disk-Shaped and Flat-Plate Heat Pipes, J. Heat Transfer 117 (1) (1995) 209–218.
Wang, Y. amd Vafai, K, Transient Characterization of Flat Plate Heat Pipes During Startup and Shutdown Operations, Int. J. Heat Mass Transfer 43 (15) (2000) 2641–2655.
Wang, Y. and Vafai. K, an Experimental Investigation of the Thermal Performance of an Asymmetrical Flat Plate Heat Pipe, Int. J. Heat Mass Transfer 43 (15) (2000) 2657–2668.
Wang, Y. and Vafai, K, an Experimental Investigation of the Transient Characteristics on a Flat-Plate Heat Pipe During Startup and Shutdown Operations, J. Heat Transfer 122 (3) (2000) 525–535.
Wenhua, Y., France, D. M., Routbort, J. L. and Choi, S. U. S. Review and Comparison of Nanofluid Thermal Conductivity and Heat Transfer Enhancements, Heat Transfer Eng. 29 (5) (2008) 432–460.
Das, S. K., Choi, S. U. S. and Patel, H. E, Heat Transfer in Nanofluids: A Review, Heat Transfer Eng. 27 (2006) 3–19.
Kakac, S. and Pramuanjaroenkij, A, Review of Convective Heat Transfer Enhancement with Nanofluids, Int. J. Heat Mass Transfer 52 (2009) 3187–3196.
Buschmann, M. H, Nanofluids in Thermosyphons and Heat Pipes: Overview of Recent Experiments and Modelling Approaches, Int. J. Therm. Sci. 72 (2013) 1– 17.
Trijo Tharayil, Lazarus Godson Asirvatham, Micheal Jerome Dau, Somachai Wongwises, Entropy Generation Analysis of Miniature Loop Heat Pipe with Graphene-Water Nanofluid: Thermodynamics Model and Experimental Study, Int. J. Heat and Mass Transfer, 106 (2017) 407-421.
Y. Naresh, C. Balaji, Experimental Investigations of Heat Transfer from an Internally Finned Two-Phase Closed Thermosyphon, Applied Thermal Engg, 112 (2017) 1658-1666.
S. Baskar, M. Chandrasekaran, J. Vinod kumar, P. Vivek and L. Karikalan, Experimental Studies on Convective Heat Transfer Co-Efficient of Water/Ethylene Glycol Carbon Nano Tube Nano Fluids, International Journal of Ambient Energy, ISSN: 0413-0750, 2018.
Carnavos, T. C., “Thin Film Distillation”, Proceedings of the First International Symposium on Water Desalination, U. S. Dept. of the interior, 1965, 205-213.