Abstract

The forced convective of heat transfer in the horizontal circular pipe without and with using the different angles of circular ribs (60°, 90° and 120°) were studied experimentally and numerically. The circular pipe was made from stainless steel of 500 mm length and 49 mm inner diameter. The circular ribs of 20 mm diameter were arranged one against the other with a distance of 100 mm between one rib and another. Air was used as a working fluid. The effect of varying Reynolds numbers (12557 to 17954) with constant surface pipe temperature of 325 K on enhancing convective heat transfer without and with using circular ribs were investigated. The experimental side included manufacturing the test section and conducting a series of experiments to show effect of varying the Reynold numbers on energy transfer and air flow characteristics. Numerical simulation included using ANSYS FLUENT (18.2) program to solve the governing equations with using Simple algorithm method and Standard k–ε turbulence model. The comparisons between the experimental results and the numerical simulation results were carried out. In general, results showed that average coefficient of the heat transfer and average Nusselt number with ribs angle of 60° were the largest compared to the other ribs angle and smooth circular pipe. The heat transfer coefficient was increased with increasing Reynolds numbers. The circular horizontal pipe with ribs angle of 60° gives a good evidence for the performance of thermal- hydraulic applications.

Keyword

Forced convection, ANSYS FLUENT, Turbulent flow, Circular ribs, Gas turbine.

Cite this article

Hussein SA, Shbailat SJ

Refference

[1][1]Mashkour MA, Majdi HS, Habeeb LJ. Enhancement of forced convection heat transfer in tubes and heat exchangers using passive techniques: a review. Journal of Mechanical Engineering Research and Developments. 2021; 44(3):208-18.

[2][2]Alva G, Lin Y, Fang G. An overview of thermal energy storage systems. Energy. 2018; 144:341-78.

[3][3]Wang J, Xie H, Guo Z, Cai L, Zhang K. Using organic phase-change materials for enhanced energy storage in water heaters: an experimental study. Journal of Enhanced Heat Transfer. 2019; 26(2):166-78.

[4][4]Omar IAA, Hammoodi KA, Ali AM. Experimental and theoretical comparison between metallic and mirror reflectors with different receiver tank. Journal of Mechanical Engineering Research and Developments. 2020; 43(7):51-61.

[5][5]Basem A, Moawed M, Abbood MH, El-maghlany WM. The energy and exergy analysis of a combined parabolic solar dish–steam power plant. Renewable Energy Focus. 2022; 41:55-68.

[6][6]Basem A, Moawed M, Abbood MH, El-maghlany WM. The design of a hybrid parabolic solar dish–steam power plant: an experimental study. Energy Reports. 2022; 8:1949-65.

[7][7]Terekhov VI, Khafaji HQ, Gorbachev MV. Heat and mass transfer enhancement in laminar forced convection wet channel flows with uniform wall heat flux. Journal of Enhanced Heat Transfer. 2018; 25(6):565-77.

[8][8]Feng L, Zhou S, Li Y, Wang Y, Zhao Q, Luo C, et al. Experimental investigation of thermal and strain management for lithium-ion battery pack in heat pipe cooling. Journal of Energy Storage. 2018; 16:84-92.

[9][9]Yilmazoglu MZ, Gokalp O, Biyikoglu A. Heat removal improvement in an enclosure with electronic components for air conditioning devices. Journal of Enhanced Heat Transfer. 2019; 26(1):1-14.

[10][10]Zhang WH, Lin WK, Yeh CT, Chiang SB, Jao CS. A novel liquid-packaging technology for highly reliable UV-LED encapsulation. Heat Transfer Research. 2019; 50(4):349-60.

[11][11]Guo Z. A review on heat transfer enhancement with nanofluids. Journal of Enhanced Heat Transfer. 2020; 27(1):1-70.

[12][12]Sapounas AA, Nikita-martzopoulou C, Martzopoulos G. Numerical and experimental study of fan and pad evaporative cooling system in a greenhouse with tomato crop. In international symposium on high technology for greenhouse system management: greensys. 2007 (pp. 987-94).

[13][13]Ligrani P, Mcinturff P, Suzuki M, Nakamata C. Winglet-pair target surface roughness influences on impingement jet array heat transfer. Journal of Enhanced Heat Transfer. 2019; 26(1):15-35.

[14][14]Kim NH. Steam condensation enhancement and fouling in titanium corrugated tubes. Journal of Enhanced Heat Transfer. 2019; 26(1):59-74.

[15][15]Dong F, Cao T, Hou L, Ni J. Optimization study of artificial cavities on subcooled flow boiling performance of water in a horizontal simulated engine cooling passage. Journal of Enhanced Heat Transfer. 2019; 26(1):37-57.

[16][16]Huang K, Deng X. Enhanced heat and mass transfer of falling liquid films in vertical tubes. Journal of Enhanced Heat Transfer. 2018; 25(1):79-96.

[17][17]Iasiello M, Cunsolo S, Bianco N, Chiu WK, Naso V. Fully developed convection heat transfer in open-cell foams. Journal of Enhanced Heat Transfer. 2018; 25(4-5):333-46.

[18][18]Mohammad WS, Murtadha TK, Ahmed KA. Using termodeck system for pre-cooling/heating to control the building inside conditions. Al-Khwarizmi Engineering Journal. 2014; 10(3):13-24.

[19][19]Sathish T. Performance improvement of base fluid heat transfer medium using nano fluid particles. Journal of New Materials for Electrochemical Systems. 2020; 23(4):235-43.

[20][20]Wang J, Hashemi SS, Alahgholi S, Mehri M, Safarzadeh M, Alimoradi A. Analysis of exergy and energy in shell and helically coiled finned tube heat exchangers and design optimization. International Journal of Refrigeration. 2018; 94:11-23.

[21][21]Maithani R, Kumar A, Sharma S. Effect of straight slot rib height on heat transfer enhancement of nanofluid flow through rectangular channel. Materials Today: Proceedings. 2022; 50:1159-63.

[22][22]Manjunath K. Heat and fluid flow behaviors in a laminar tube flow with circular protruded twisted tape inserts. Case Studies in Thermal Engineering. 2022.

[23][23]Ravikiran B, Ramji K, Subrahmanyam T. Investigation on thermal performance of different wire coil twisted tape inserts in a tube circulated with water. International Communications in Heat and Mass Transfer. 2021.

[24][24]Singh SK, Sarkar J. Hydrothermal performance comparison of modified twisted tapes and wire coils in tubular heat exchanger using hybrid nanofluid. International Journal of Thermal Sciences. 2021.

[25][25]Safarzadeh S, Niknam-azodi M, Aldaghi A, Taheri A, Passandideh-fard M, Mohammadi M. Energy and entropy generation analyses of a nanofluid-based helically coiled pipe under a constant magnetic field using smooth and micro-fin pipes: experimental study and prediction via ANFIS model. International Communications in Heat and Mass Transfer. 2021.

[26][26]Xie JH, Cui HC, Liu ZC, Liu W. Optimization design of helical micro fin tubes based on exergy destruction minimization principle. Applied Thermal Engineering. 2022.

[27][27]Duffie JA, Beckman WA. Solar engineering of thermal processes. John Wiley & Sons; 2013.

[28][28]Peng H, Ding G, Hu H. Effect of surfactant additives on nucleate pool boiling heat transfer of refrigerant-based nanofluid. Experimental Thermal and Fluid Science. 2011; 35(6):960-70.

[29][29]Rambhad KS, Kalbande VP, Kumbhalkar MA, Khond VW, Jibhakate RA. Heat transfer and fluid flow analysis for turbulent flow in circular pipe with vortex generator. SN Applied Sciences. 2021; 3(7):1-21.

[30][30]Aljibory MW, Rashid FL, Alais SM. An experimental and numerical investigation of heat transfer enhancement using annular ribs in a tube. In IOP conference series: materials science and engineering 2018 (pp. 1-20). IOP Publishing.

[31][31]Pandey L, Prajapati H, Singh S. CFD study for enhancement of heat transfer and flow characteristics of circular tube heat exchanger using Y-shaped insert. Materials Today: Proceedings. 2021; 46:9827-36.

[32][32]Kore SS, Dingare SV, Chinchanikar S, Hujare P, Mache A. Experimental analysis of different shaped ribs on heat transfer and fluid flow characteristics. In E3S web of conferences 2020 (pp. 1-4). EDP Sciences.

[33][33]Dang W, Wang LB. Convective heat transfer enhancement mechanisms in circular tube inserted with a type of twined coil. International Journal of Heat and Mass Transfer. 2021.

[34][34]Rasool G, Shafiq A, Baleanu D. Consequences of soret–dufour effects, thermal radiation, and binary chemical reaction on darcy forchheimer flow of nanofluids. Symmetry. 2020; 12(9):1-19.

[35][35]Chanmak P, Krittacom B, Waramit P, Peamsuwan R. Experimental investigation of forced convective heat transfer in circular pipe with wire mesh porous media. In journal of physics: conference series 2021 (pp. 1-9). IOP Publishing.

[36][36]Fadhil D, Al-turaihi R, Abed A. Effect of semi-circle rib on heat transfer coefficient in a rectangular channel. Frontiers in Heat and Mass Transfer. 2019.

[37][37]Al KAA, Ibrahim TK, Abdullah MA. Experimental and numerical study of forced convection heat transfer in different internally ribbed tubes configuration using TiO2 nanofluid. Heat Transfer-Asian Research. 2019; 48(5):1778-804.

[38][38]Golam AS. Numerical and experimental investigation of heat transfer features in a square duct with internal ribs. WASIT Journal of Engineering Sciences. 2018; 6(3):51-68.

[39][39]Choi YC, Jeong M, Park YG, Park SH, Ha MY. Direct numerical simulation of flow characteristics and heat transfer enhancement in a rib-dimpled cooling channel. Journal of Mechanical Science and Technology. 2022; 36(3):1521-35.

[40][40]Nakhchi ME, Esfahani JA. Numerical investigation of heat transfer enhancement inside heat exchanger tubes fitted with perforated hollow cylinders. International Journal of Thermal Sciences. 2020.

[41][41]Sadiq HM, Hamza NH. The effect of ribs spacing on heat transfer in rectangular channels under the effect of different types of heat flux in the presence of a nanofluids. Al-Qadisiyah Journal for Engineering Sciences. 2021; 14(2):99-108.

[42][42]Wang W, Zhang B, Cui L, Zheng H, Klemeš JJ, Wang J. Numerical study on heat transfer and flow characteristics of nanofluids in a circular tube with trapezoid ribs. Open Physics. 2021; 19(1):224-33.

[43][43]Theeb AH, Mussa MA. Numerical investigation on heat transfer enhancement and turbulent flow characteristics in a high aspect ratio rectangular duct roughened by intersecting ribs with inclined ribs. Journal of Engineering. 2020; 26(5):20-37.

[44][44]Dhaidan NS, Abbas AK. Turbulent forced convection flow inside inward‐outward rib corrugated tubes with different rib‐shapes. Heat Transfer-Asian Research. 2018; 47(8):1048-60.

[45][45]Hashim YA. Heat transfer and fluid flow inside duct with using fan-shape ribs. Journal of Applied Engineering Science. 2021; 19(2):526-32.

[46][46]Alwan MS, Hadi JM, Jaafer LH, Jalghaf HK. Study the effect of nano fluid on heat transfer in finned pipe with internal v-cut twisted tape. Journal of Mechanical Engineering Research and Developments. 2020; 43(5):161-77.

[47][47]Alfarawi S, Abdel-moneim SA, Bodalal A. Experimental investigations of heat transfer enhancement from rectangular duct roughened by hybrid ribs. International Journal of Thermal Sciences. 2017; 118:123-38.

[48][48]Hammoodi KA, Hasan HA, Abed MH, Basem A, Al-tajer AM. Control of heat transfer in circular channels using oblique triangular ribs. Results in Engineering. 2022.

[49][49]Papulová Z, Gažová A, Šlenker M, Papula J. Performance measurement system: implementation process in SMEs. Sustainability. 2021; 13(9):1-19.

[50][50]Delort M, Fakra DA, Malet-damour B, Gatina JC. Measuring the uncertainty assessment of an experimental device used to determine the thermo-optico-physical properties of translucent construction materials. Measurement Science and Technology. 2022; 33(5).

[51][51]Guide AF. Ansys fluent tutorial guide. Ansys INC nd. 2013.

[52][52]Lienhard IV, John H. A heat transfer textbook. Phlogiston Press; 2005.

[53][53]Wang Y, Oon CS, Tran MV, An JY. Investigation on heat transfer and pressure drop performance utilizing GNP-based colloidal suspension flow in finned conduit. In IOP conference series: earth and environmental science 2021 (pp. 1-8). IOP Publishing.