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Agyekum, K, Ghansah, F A, Tetteh, P A and Amudjie, J (2021) The role of project managers (PMs) in construction health and safety implementation in Ghana. Journal of Engineering, Design and Technology, 19(1), 245-62.

Falaq Assad, N, Edwards, D J, Shelbourn, M, Martek, I, Wellington Didibhuku Didibhuku, T and El-Gohary, H (2021) Comparison of modular and traditional UK housing construction: a bibliometric analysis. Journal of Engineering, Design and Technology, 19(1), 164-86.

Hosseini, M R, Edwards, D J, Singh, T, Martek, I and Amos, D (2021) Engineering project networks: providing “sustainable work systems" for construction knowledge workers. Journal of Engineering, Design and Technology, 19(1), 21-40.

Irewolede Aina, I, Godwin Iroroakpo, I and Michael Gbolagade, O (2021) Key training practice indicators for optimal site supervisors' utilisation in construction firms. Journal of Engineering, Design and Technology, 19(1), 149-63.

Jafari, K G, Nozhat Sadat Ghazi, S and Noorzai, E (2021) BIM-based integrated solution for analysis and management of mismatches during construction. Journal of Engineering, Design and Technology, 19(1), 81-102.

Johnson, A, Rotimi, J O B and Wilkinson, S (2021) An evaluation of risk factors impacting project budget performance in New Zealand. Journal of Engineering, Design and Technology, 19(1), 41-61.

Mahdizadeh, H and Nor Mariah, A (2021) Numerical study of heat transfer in 90° bend tube by AI₂O₃ nano fluids using fluid injection. Journal of Engineering, Design and Technology, 19(1), 127-48.

• Type: Journal Article
• Keywords: conservation; heat transfer; performance
• ISBN/ISSN:
• URL: http://dx.doi.org/10.1108/JEDT-02-2020-0061
• Abstract:
  This paper aims to investigate increasing heat transfer in bend tube 90° by fluid injection using nano fluid flow that was performed by expending varying Reynolds number. This paper studies the increased heat transfer in the bent tube that used some parameters to examine the effects of volume fraction, nanoparticle diameter, fluid injection, Reynolds number on heat transfer and flow in a bend pipe. Designing curved tubes increases the thermal conductivity amount between fluid and wall. It is used the finite volume method and simple algorithms to solve the conservation equations of mass, momentum and energy. The results showed that the nanoparticles used in bent tube transfusion increase the heat transfer performance by increasing the volume fraction; it has a direct impact on enhancing the heat transfer coefficient. Heat transfer coefficient enhanced 1.5% when volume fraction increased from 2 % to 6%, the. It is due to the impact of nanoparticles on the thermal conductivity of the fluid. The fluid is injected into the boundary layer flow due to jamming that enhances heat transfer. Curved lines used create a centrifugal force due to the bending and lack of development that increase the heat transfer. This study has investigated the effect of injection of water into a 90° bend before and after the bend. Specific objectives are to analyze effect of injection on heat transfer of bend tube and pressure drop, evaluate best performance of mixing injection and bend in different positions and analyze effect of nano fluid volume fraction on injection.

Moeti, M, Jacques, E, Feng, W and North, C (2021) Modelling the effect of computation sampling on insight error in computational fluid dynamics scientific simulation. Journal of Engineering, Design and Technology, 19(1), 263-90.

Naga Vamsi Krishna, J, Kota, S and Venkataraman, P B (2021) An impact of simulation labs on engineering students' academic performance: a critical Investigation. Journal of Engineering, Design and Technology, 19(1), 103-26.

Prachi Vinod, I, Gangadhar, M and Deepak, M D (2021) Identifying the performance areas affecting the project performance for Indian construction projects. Journal of Engineering, Design and Technology, 19(1), 1-20.

Radebe, T B, Huan, Z and Baloyi, J (2021) Simulation of eutectic plates in medium refrigerated transport. Journal of Engineering, Design and Technology, 19(1), 62-80.

Sharma, R (2021) Effect of wastes and admixtures on compressive strength of concrete. Journal of Engineering, Design and Technology, 19(1), 219-44.

Sun, Q, He, L, Ding, F, Chen, X, Ding, L and Tu, Y (2021) Modeling and analysis of structure parameters on the lifting force for power catwalk. Journal of Engineering, Design and Technology, 19(1), 187-202.

Wang, Y, Lin, M, Xu, K, Zhang, S and Ma, H (2021) Energy consumption analysis of glass house using electrochromic window in the subtropical region. Journal of Engineering, Design and Technology, 19(1), 203-18.

Zaheer, M I, Ajayi, S O, Sambo Lyson, Z, Oyegoke, A and Kazemi, H (2021) Understanding the key competencies of market-ready building surveying graduates from employers' perspectives. Journal of Engineering, Design and Technology, 19(1), 291-314.