Abstract
The thermal performance of the trio tube with a dual thermal communication surface heat exchanger (T.T.H. Xr) is analyzed experimentally under the steady-state conditions. Water was used as a working fluid which was available at three different inlet temperatures of cold (C), hot (H), and normal (N). The performance of T.T.H. Xr was compared for the three different flow arrangements of C–H–N, C–H–C, and N–H–C at counter-current flow. The pipes were made of aluminum (inner tube 12.7 mm), copper (intermediate tube 25.4 mm), and GI tube (outer tube 38.1 mm), all pipes having a thickness of 1.5 mm. N–H–C and C–H–C flow arrangements show better heat transfer results compared to C–H–N. The results from experiments were also verified numerically by using the derived equations. A case study was also performed on the results obtained from T.T.H.Xr to compare its performance with the double-tube heat exchanger on the same parameters. It was observed that the pipe length for T.T.H.Xr reduced by ~58.39% compared to the double-tube heat exchanger to extract the same amount of heat transfer from the hot fluid.
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Abbreviations
- C:
-
Cold fluid
- ρ :
-
Density (kg/m3)
- d :
-
Diameter (m)
- μ :
-
Dynamic viscosity (N-s/m2)
- Q :
-
Heat transfer (W)
- h :
-
Heat transfer coefficient (W/m2K)
- H:
-
Hot fluid
- i :
-
Inner
- \(\dot{m}\) :
-
Mass flow rate (kg/s)
- N:
-
Normal fluid
- Nu:
-
Nusselt number
- o :
-
Outer
- U :
-
Overall heat transfer coefficient (W/m2K)
- Pr:
-
Prandtl number
- Re:
-
Reynolds number
- C p :
-
Specific heat (kJ/kgK)
- t :
-
Temperature (℃)
- k :
-
Thermal conductivity (W/mK)
- v :
-
Velocity (m/s)
- V :
-
Volume flow rate (m3/s)
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Yadav, D., Upadhyay, Z., Kushwaha, A., Mishra, A. (2020). Analysis Over Trio-Tube with Dual Thermal Communication Surface Heat Exchanger [T.T.H.Xr.]. In: Narasimham, G., Babu, A., Reddy, S., Dhanasekaran, R. (eds) Recent Trends in Mechanical Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-1124-0_1
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DOI: https://doi.org/10.1007/978-981-15-1124-0_1
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