Optimization of shell-side fluid flow and heat transfer of heat exchangers could be done by reforming the baffle and tube bundle structures. In this study, a new arrangement of baffles and tube bundles in the operation of the shell-and-tube heat exchanger is investigated. In the present research, the effect of the segmental baffle (SB), single-pass helical baffle (SPHB), double-pass helical baffle (DPHB), and double-pass combined helical-segmental baffle (DPCHSB) accompanied with the various elliptical tube bundles were studied and compared. Various tube bundle arrangement effects such as vertical, horizontal, and angled were studied. The fluid domain was simulated by CFD Software (Solid work Flow Simulation). By comparing the evaluation characteristics such as Q/Δp, and the efficiency evaluation coefficient (EEC) for all proposed baffle and tube bundle configurations, the angled-elliptical tube bundles showed the best performance rather than other studied tube bundles layouts. For the SPHB, the angled-elliptical tube bundle improved the EEC by 20.9 and 10.7% rather than the horizontal-elliptical and vertical-elliptical tube bundle arrangement, respectively. For the DPHB, the EEC of angled-elliptical increased by 15.7 and 22.4% rather than the horizontal-elliptical and vertical-elliptical tube bundle arrangement, respectively. For the DPCHSB, the EEC of angled-elliptical enhanced 30.3 and 14.8% rather than horizontal-elliptical and vertical-elliptical arrangement, respectively.

可通过改革挡板和管束结构来优化壳侧流体流动和热交换器的传热。在这项研究中，研究了管壳式换热器运行中挡板和管束的新布置。在本研究中，分段挡板（SB），单程螺旋挡板（SPHB），双程螺旋挡板（DPHB）和双程组合螺旋节段挡板（DPCHSB）伴随各种椭圆形的影响对管束进行了研究和比较。研究了各种管束布置效果，例如垂直，水平和倾斜角度。流体域通过CFD软件（固体工作流模拟）进行了模拟。通过比较评估特征（例如Q /Δp），并针对所有建议的挡板和管束配置的效率评估系数（EEC），倾斜的椭圆形管束表现出最佳性能，而不是其他研究的管束布局。对于SPHB，弯角椭圆形管束的EEC分别提高了20.9％和10.7％，而不是水平椭圆形管束和垂直椭圆形管束的布置。对于DPHB，角椭圆形的EEC分别增加了15.7％和22.4％，而不是水平椭圆形和垂直椭圆形的管束布置。对于DPCHSB，角度椭圆形的EEC分别提高了30.3和14.8％，而不是水平椭圆形和垂直椭圆形。对于SPHB，弯角椭圆形管束的EEC分别提高了20.9％和10.7％，而不是水平椭圆形管束和垂直椭圆形管束的布置。对于DPHB，角椭圆形的EEC分别增加了15.7％和22.4％，而不是水平椭圆形和垂直椭圆形的管束布置。对于DPCHSB，角度椭圆形的EEC分别提高了30.3和14.8％，而不是水平椭圆形和垂直椭圆形。对于SPHB，弯角椭圆形管束的EEC分别提高了20.9％和10.7％，而不是水平椭圆形管束和垂直椭圆形管束的布置。对于DPHB，角椭圆形的EEC分别增加了15.7％和22.4％，而不是水平椭圆形和垂直椭圆形的管束布置。对于DPCHSB，角度椭圆形的EEC分别提高了30.3和14.8％，而不是水平椭圆形和垂直椭圆形。分别。对于DPCHSB，角度椭圆形的EEC分别提高了30.3和14.8％，而不是水平椭圆形和垂直椭圆形。分别。对于DPCHSB，角度椭圆形的EEC分别提高了30.3和14.8％，而不是水平椭圆形和垂直椭圆形。