This work theoretically analyses the enhancement of heat transfer in the process intensified chemical systems i.e. at the entrance region of the cylindrical concentric annuli. This investigation uses water as a base fluid while copper, silver, aluminium oxide and titanium dioxide nanoparticles unite with Bingham fluid. Many of the studies related to nanofluids focus on measuring the increased thermal conductivity of the suspension under static conditions, while the convective performance has received lesser attention. This study inspects two cases namely, case I: The rotating inner cylinder is adiabatic and the stationary outer cylinder is in isothermal state, and case II: The inner cylinder is stationary and outer cylinder is in rotating state which are adiabatic and isothermal respectively. To investigate the component of heat transfer along the radial direction of the cylinder, a numerical technique has been applied assuming conditions from Prandtl’s boundary layer. Moreover, the equation of energy has been iteratively derived. This shows that the thermal effect increases as Prandtl’s number increases, but the increment rate decreases in the entrance region of the considered system. This happens as there are more particles available to start the process of heat transfer which results in the increase of the concentration.

这项工作从理论上分析了过程增强化学系统中（即在圆柱同心环的入口处）传热的增强。这项研究使用水作为基础流体，而铜，银，氧化铝和二氧化钛纳米颗粒则与宾厄姆流体结合在一起。与纳米流体有关的许多研究都集中在静态条件下测量悬浮液增加的热导率，而对流性能受到的关注较少。本研究考察了两种情况，即情况I：旋转的内缸是绝热的，而静止的外缸处于等温状态，而情况II：内缸是固定的，而外缸是绝热和等温状态。为了研究沿圆柱体径向传递的热量，在假定普朗特边界层为条件的情况下，采用了一种数值技术。此外，已经迭代得出了能量方程。这表明热效应随着Prandtl数的增加而增加，但是在所考虑的系统的入口区域中，增加率减小。发生这种情况的原因是有更多的颗粒可用于启动传热过程，从而导致浓度增加。但是在考虑的系统的入口区域中，增长率降低。发生这种情况的原因是有更多的颗粒可用于启动传热过程，从而导致浓度增加。但是在考虑的系统的入口区域中，增长率降低。发生这种情况的原因是有更多的颗粒可用于启动传热过程，从而导致浓度增加。