Abstract
The heat transfer from surface may in general be enhanced by increasing the heat transfer coefficient between a surface and its surrounding or by increasing heat transfer area of the surface or by both. The main objective of the study and calculate the total heat transfer coefficient. Improve the heat transfer rate by using ANSYS CFD. During the CFD calculations of the flow in internally ribbed tubes. And calculated the temperature distribution and pressure inside the tube by using ansys. The model was created using CatiaV5 and meshed with Ansys, and the flow analysis is done with Ansys 19.2. The results showing that the heat transfer is increased. The enthalpy and temperature increase with flow is advancing when compare with normal boiler tube. In this study the total heat transfer rate of the pipe increase with the increase the rib height. Total heat transfer rate increase up to 7.7kw. The study show that the improvement in furnace heat transfer can be achieved by changing the internal rib design.
Highlights
Transfer rate and substantial the pressure loss [1][3]
The rib arrangement and geometry resulting in different heat transfer distribution by altering the flow field
The common thermo hydraulic goals are to reduce the size of a heat exchanger required for a specified heat duty and to upgrade the capacity of an existing heat exchanger, to reduce the pumping power
Summary
The heat transfer from surface may in general be enhanced by increasing the heat transfer coefficient between a surface and its surrounding or by increasing heat transfer area of the surface or by both. The aim of the calculations is, among others, to find the distribution of the fluid enthalpy, mass flow and pressure in internally rifled tubes and to determine the heat transfer coefficient. Alireza Taklifi et al [5] in this paper presented are the effect of various inclination angles on heat transfer of water at subcritical and supercritical operating pressures is investigated experimentally. After the changes described above are introduced, the energy balance equation takes the following form: The fluid density is found as a function of enthalpy and pressure: Tao Zhang et al [7] in this paper presented are the turbulent supercritical water flow characteristics within different grooves are obtained using a validated low-Reynolds number κε turbulence model. The lower groove depth and higher groove pitch-to-depth ratio suppress the enhancement of heat transfer
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
