Graduate Program in Electrical Engineering, Federal University of Santa Catarina, Florianópolis 88040-900, SC, Brazil.
T2F, Thermal Fluid Flow Group, Federal University of Santa Catarina, Joinville 89219-600, SC, Brazil.
Sensors (Basel). 2022 Jun 11;22(12):4422. doi: 10.3390/s22124422.
In the oil and gas industry, heat exchangers are subject to loads that cause malfunctioning. These loads are divided into thermal and mechanical stresses; however, most efforts are focused on studying thermal stresses. The present work reduces mechanical stresses by mitigating pressure events in a gasket plate heat exchanger (GPHE). GPHE requires that the hot and cold stream branches have approximately the same pressure. Thus, the work focuses on controlling the pressure difference between the branches. A test bench was used to emulate, on a small scale, the typical pressure events of an oil production plant. A control valve was used in different positions to evaluate the controller. In the experiments, it was observed that the best option to control the pressure difference is to use a hydraulic pump and control valve in the flow of the controlled thermal fluid branch. The reduction in pressure events was approximately 50%. Actuator efforts are also reduced in this configuration.
在石油和天然气行业，换热器承受着导致故障的负荷。这些负载分为热应力和机械应力；然而，大多数努力都集中在研究热应力上。本工作通过减轻垫圈板式换热器 (GPHE) 中的压力事件来降低机械应力。GPHE 需要热流和冷流分支具有大致相同的压力。因此，工作重点是控制分支之间的压差。使用试验台在小规模上模拟了典型的采油厂的压力事件。使用控制阀在不同位置来评估控制器。在实验中，观察到控制压差的最佳选择是在受控热流体分支的流中使用液压泵和控制阀。压力事件的减少约为 50%。在这种配置下，执行器的工作也减少了。
