Numerical Investigations on Thermal Performance and Energy Consumption of an Industrial Brazed Plate Heat Exchanger

Abstract

Commercial, industrial, and residential activities boost energy demand all over the world. Global energy agencies and commissions recently report that more than a third of the generated electricity has been consumed by heating, ventilation, and air-conditioning (HVAC) systems. HVAC units can be utilized for diverse purposes and at various scales from split air-conditioners to advanced air-handling systems. Heat exchangers are the main and inevitable sub-components of HVAC industry, affecting thermal and hydraulic performance. This work uncovers thermal performance and pressure losses of an industrial brazed plate heat exchanger (BPHE) system with the aid of numerical strategies. There flow configurations of Design 1 (validated model), Design 2 (corrugated), and Design 3 (flat) have been simulated to observe the heat transfer rate and experienced pressure drop. Furthermore, the corrugation angles of 45°, 60°, and 75° are examined under the identical boundary conditions. Complementary parametric investigations are also carried out, including the influence of turbulence models, flow arrangement (parallel vs. counterflow), and different material choices. The findings indicate that flat BPHE model has superiority on operational energy consumption perspective, yet it reduces the heat transfer rate by %73.8 and 71.4% compared to corrugated designs. On the other hand, the chevron angle variation from 75° to 45° slightly enhances (⁓1.53%) the thermal performance of the investigated BPHE system.

Keywords

• Heat exchangers
• Brazed plate
• Heat transfer
• Pressure drop

Supporting Institution

Izmir Katip Celebi University

Ethical Statement

There is no conflict of interest and ethical approval requirement.

Thanks

N/A

References

1. International Energy Agency, Key World Energy Statistics, 2023.
2. Alrwashdeh, S.S., Ammari, H., Madanat, M.A. ve Al-Falahat, A.M., "The effect of heat exchanger design on heat transfer rate and temperature distribution", Emerging Science Journal, Vol. 6, pp. 128–137, 2022.
3. Jin, Y., Gao, N. ve Zhu, T., "Controlled variable analysis of counter flow heat exchangers based on thermodynamic derivation", Applied Thermal Engineering, Vol. 129, pp. 684–692, 2018.
4. Mangrulkar, C.K., Dhoble, A.S., Chamoli, S., Gupta, A. ve Gawande, V.B., "Recent advancement in heat transfer and fluid flow characteristics in cross flow heat exchangers", Renewable and Sustainable Energy Reviews, Vol. 113, 109220, 2019.
5. Shah, R.K. ve Sekulić, D.P., Fundamentals of Heat Exchanger Design, 2nd ed., Springer Nature, Cham, Switzerland, 2022.
6. Pulagam, M.K.R., Rout, S.K. ve Sarangi, S.K., "A state-of-the-art review on thermo fluid performance of brazed plate heat exchanger for HVAC application", Journal of Thermal Engineering, Vol. 10, No. 5, pp. 1390–1410, 2024.
7. Sundén, B. ve Manglik, R.M., Plate Heat Exchangers: Design, Applications and Performance, WIT Press, Southampton, UK, 2007.
8. Borjigin, S., Zhao, W., Fu, W., Liang, W., Bai, S., Ma, J., Meng, K. ve Baoyin, H., "Review of plate heat exchanger utilized for gases heat exchange", Renewable and Sustainable Energy Reviews, Vol. 210, 115224, 2025.

9. Gullapalli, V.S., Estimation of Thermal and Hydraulic Characteristics of Compact Brazed Plate Heat Exchangers, Doctoral Thesis, Department of Energy Sciences, Lund University, Lund, Sweden, 2013.
10. Wang, Y., Ding, S., Yan, A., Miao, H., Wang, F. ve Yuan, J., "Flow and heat transfer performance analysis of brazed plate heat exchangers under marine vibration conditions", International Journal of Thermal Sciences, Vol. 205, 109270, 2024.
11. Thulukkanam, K., Heat Exchanger Design Handbook, 2nd ed., CRC Press, Boca Raton, FL, 2013.
12. Kakaç, S., Liu, H. ve Pramuanjaroenkij, A., Heat Exchangers: Selection, Rating, and Thermal Design, 4th ed., CRC Press, Boca Raton, FL, 2020.
13. Barzegarian, R., Moraveji, M.K. ve Aloueyan, A., "Experimental investigation on heat transfer characteristics and pressure drop of BPHE using TiO₂–water nanofluid", Experimental Thermal and Fluid Science, Vol. 74, pp. 11–18, 2016.
14. Sadeghianjahromi, A., Jafari, A. ve Wang, C.C., "Numerical investigation of the effect of chevron angle on thermofluids characteristics of non-mixed and mixed brazed plate heat exchangers with experimental validation", International Journal of Heat and Mass Transfer, Vol. 184, 122278, 2022.
15. Kim, M.B. ve Park, C.Y., "An experimental study on single phase convection heat transfer and pressure drop in two brazed plate heat exchangers with different chevron shapes and hydraulic diameters", Journal of Mechanical Science and Technology, Vol. 31, pp. 2559–2571, 2017.
16. Zhong, Y., Deng, K., Zhao, S., Hu, J., Zhong, Y., Li, Q., Wu, Z., Lu, Z. ve Wen, Q., "Experimental and numerical study on hydraulic performance of chevron brazed plate heat exchanger at low Reynolds number", Processes, Vol. 8, 1076, 2020.
17. Allymehr, E., Skaugen, G., Will, T., Pardiñas, A.A., Eikevik, T.M., Hafner, A. ve Schnabel, L., "Numerical study of hydrocarbon charge reduction methods in HVAC heat exchangers", Energies, Vol. 14, 4480, 2021.
18. Močnik, U., Blagojevič, B. ve Muhič, S., "Numerical analysis with experimental validation of single-phase fluid flow in a dimple pattern heat exchanger channel", Thermal Science, Vol. 66, No. 9, pp. 544–553, 2020.
19. Du, Y., Wei, W., Xu, C., Wang, Y. ve Li, X., "Heat transfer characteristics of single-phase flow through dimple plate heat exchanger", Applied Thermal Engineering, Vol. 273, 126499, 2025.
20. Gungor, S., "Experimental comparison on energy consumption and heat transfer performance of corrugated H-type and L-type brazed plate heat exchangers", International Communications in Heat and Mass Transfer, Vol. 144, 106763, 2023.
21. Pulagam, M.K.R., Pasa, D., Rout, S.K. and Sarangi, S.K., “Experimental and numerical investigation of the effects of amplitude, pitch, and chevron angle in a brazed plate heat exchanger”. Heat Transfer, Vol. 54, 4626-4639, 2025.
22. Pulagam, M. K. R., Rout, S. K., & Sarangi, S. K., “Single-phase flow and pressure drop between a pair of chevron plates with sinusoidal corrugations – a CFD study using periodic boundary condition”, Numerical Heat Transfer, Part A: Applications, 1–17, 2025.
23. Manigandan, N., NaveenPrabhu, V. ve Suresh, M., "Experimental investigation of a brazed chevron type plate heat exchanger", International Journal of Science Technology & Engineering, Vol. 1, No. 12, 2015.
24. Jafari, A., Sadeghianjahromi, A. ve Wang, C.C., "Experimental and numerical investigation of brazed plate heat exchangers A new approach", Applied Thermal Engineering, Vol. 200, 117694, 2022.
25. ANSYS, Inc. ANSYS Fluent Theory Guide, Release 18.2. ANSYS, Inc; 2017. [25] ANSYS, Inc. ANSYS Fluent Theory Guide, Release 18.2. ANSYS, Inc; 2017.
26. Gullapalli, V.S. ve Sundén, B., "CFD simulation of heat transfer and pressure drop in compact brazed plate heat exchangers", Heat Transfer Engineering, Vol. 34, pp. 358–366, 2013.