Enhancement Thermal Transmission for Cross Flow Heat Exchanger by Using Triangular Fins Experimentally

Abstract:

A four-pass cross-flow heat exchanger was developed and manufactured in this practical study for two types of tubes: smooth and triangular finned tubes. The length of the tube is 250 mm, for a smooth tube the inner and outer diameter (19, 21 mm), and (19, 21 and 24 mm) the inner, outer diameter and the fin root for the finned tube respectively. Water is used as a hot fluid inside the tubes and air is used as a cold fluid outside the tubes. Inlet hot fluid temperatures were 50, 60, 70, and 80 °C, with three air speeds (1, 2, and 3 m/s), and volumetric flow rate (2, 3, 4, and 5 l / min) held steady at 25 ° C. The finned tube outperformed the smooth tube in terms of heat transfer rate, heat transfer coefficient, total heat transfer coefficient, and effectiveness, according to the findings.

• Periodical: Engineering Headway (Volume 8)
• Pages: 87-100
• DOI: https://doi.org/10.4028/p-VTtS3L
• Online since: June 2024
• Authors: Shatha Ali Mardan*, Zena Khalefa Kadhim, Ali Arkan Alwan
• Keywords: Effectiveness, Heat Transfer Coefficient, Heat Transfer Rate, Smooth Tube, Triangle Finned Tube

References

[1] Farah Abdul Zahra Taher and Zena Khalefa Kadhim,2019 Improvement of Heat Transfer Coefficient for A Cross Flow Heat Exchanger by Using the High Integral Finned Tube, Journal of University of Babylon for Engineering Sciences, Vol. 27, No. (3).

DOI: 10.1109/icasea53739.2021.9733073

[2] Ayad Mezher Rahmah, 2011 Experimental Study of an Integral Finned Tube Heat Exchanger M.Sc. thesis, University of Technology, Iraq.

[3] Laith Jaafer Habeeb, Abdul Hassan A. Karamallah and Ayad Mezher Rahmah. 2015 Heat Transfer Analysis of Integral-Fin Tubes" Engineering and Technology. Vol. 2, No. 2, pp.23-34.

[4] Jignesh M. Chaudhari, Dattatraya Subhedar and Nikul Patel 2014 Experimental Investigation of Finned Tube Heat Exchanger International Journal of Innovative Research in Advanced Engineering, vol. 1, no. 5, p.67–74, ISSN: 2349-2163.

[5] Farah Abdul Zahra Taher and Dr. Zena Khalefa Kadhim, "Practical study to improvement the performance of heat exchanger using passive techniques," International Journal of engineering technologies and management research, vol. 6, August, p.21–33, 2019, ISSN: 2454-1907

DOI: 10.29121/ijetmr.v6.i8.2019.437

[6] Mahmood Hasan Oudah 2018 Experimental and Numerical Study for the Performance of Pin Fin Heat Exchanger Under Forced Convection M.Sc. thesis, Engineering Technical College-Baghdad, Iraq.

[7] Dr. Sadiq Elias Abdullah 2016 Investigation the Performance of Cross Flow Heat Exchanger, International Journal of Science and Research (IJSR) vol. 5, no. 4, p.637–641, ISSN (Online): 2319-7064.

DOI: 10.21275/v5i4.nov162594

[8] Zena K Kadhim Muna S Kassim and Adel Y Abdul Hassan 2016 Effect of Integral Finned Tube on Heat Transfer Characteristics for Cross Flow Heat Exchanger International Journal of Computer Applications, vol. 139, no. 3, p.20–25.

DOI: 10.5120/ijca2016909121

[9] Karthik Silaipillayarputhur andTawfiq Al-Mughanam, Energies 2021, Performance of Pure Crossflow Heat Exchanger in Sensible Heat Transfer Application, Published: 2 Sep.(2021)

DOI: 10.3390/en14175489

[10] Mohammed Khalid JAR AL-ISAWI 2022 EFFECT OF PITCH RATIO FOR FINNED TUBEIN CROSS-FLOW HEAT EXCHANGER ON FLUIDFLOW AND HEAT TRANSFER M.Sc. thesis, turkey.

[11] Karthik Silaipillayarputhur, Abdulaziz Elsinawi1, Tawfiq Al Mughanam1,Abdullah Al Thayf 2022 Estimation of Performance in Counter Cross-flow Heat Exchanger ,AIP Conference Proceedings, paupleshed in 30 November

DOI: 10.1063/5.0105078

[12] Farah Abdul Zahra Taher 2019 Experimental and Numerical Study of Integrated Finned Heat Exchanger M.Sc. thesis, Wasit University, Iraq.

[13] R K Sinnott 2005 Chemical Engineering Design Volume 6, Fourth edition, Elsevier Butterworth-Heinemann.

[14] A H Tarrad, F A Saleh and A A Abdul Rasool 2009 A Simplified Numerical Model for a Flat Continuous Triangle Fins Air Cooled Heat Exchanger Using a Step by Step Technique Journal of Engineering and Development, Vol.13, No. 3, pp.38-60.

[15] F B Incropera, and D B Doot 1986 Principles of Heat Transfer McGraw-Hill Co.

[16] J P Holman 2002 Heat Transfer, Ninth edition, McGraw-Hill Co.

[17] R H Perry and D W Green 1999 Perry's Chemical Engineers Handbook, Seventh edition, McGraw-Hill Co.

[18] R. K. Sinnott 2005 Chemical Engineering Design, Volume 6, Fourth edition, Elsevier Butterworth-Heinemann.