| Issue |
E3S Web Conf.
Volume 286, 2021
10th International Conference on Thermal Equipments, Renewable Energy and Rural Development (TE-RE-RD 2021)
|
|
|---|---|---|
| Article Number | 01003 | |
| Number of page(s) | 10 | |
| Section | Thermal Equipments and Processes | |
| DOI | https://doi.org/10.1051/e3sconf/202128601003 | |
| Published online | 12 July 2021 | |
Numerical modelling of heat convection processes in the ducts of two-stage heat exchanger
1 Department of Heat, Hydraulics and Environmental Engineering, University of Ruse, Ruse 7017, Bulgaria
2 Department of Electronics, University of Ruse, Ruse 7017, Bulgaria
* Corresponding author: zkolev@uni-ruse.bg
The paper presents results from numerical modelling in ABAQUS of heat convection processes in the ducts of two-stage “water to air” heat exchanger, used as a heat consumer in reversible heat pump installation. A comparison between the values of heat convection coefficient has been done, as they have been determined on the basis of simulation results, and criterion equations. The heat convection processes have been modelled on the base of boundary conditions, determined by measuring of main parameters. The computing mesh has been verified on the basis of certain temperature values, by successively increasing the number of computing cells. The heat convection processes in the ducts of the heat exchanger have been simulated in “heating” and “cooling” modes of the installation. The study has been performed in laboratory conditions.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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