Ghanbari Arash, Mazaheri Karim
Aerospace Engineering Department, Sharif University of Technology, Tehran, Iran.
Heliyon. 2024 Jul 26;10(15):e35318. doi: 10.1016/j.heliyon.2024.e35318. eCollection 2024 Aug 15.
Compressions are prevalent in industrial applications and are notable for their substantial energy consumption. Therefore, the simulation and analysis of the compression process are essential for maintenance and energy conservation efforts. These systems are prone to potentially unstable surge conditions, necessitating the use of traditional anti-surge valves that result in considerable energy losses. Ensuring the near-optimal operation of these systems is critical to minimizing energy consumption. In this article, a conceptual framework for a cylinder-piston mechanism is delineated, intended for design and operation as an active surge control system. Additionally, a modular quasi-one-dimensional model is articulated for the transient simulation of an industrial compression system, which integrates models for both the anti-surge and active control systems. The manuscript presents a novel design, featured by a cylinder-piston system integrated with a robust controller, posited as a potential alternative to traditional anti-surge systems. The effectiveness of this design in expanding the operational envelope of the compression system and surge prevention is rigorously examined. Moreover, a thermodynamic model, grounded in the fundamental laws of mass, momentum, and energy conservation, is applied to each component of the system. Furthermore, the manuscript explores the benefits of the innovative design in achieving a marked decrease in energy wastage. Simulation results from a test scenario reveals that the implementation of the cylinder-piston design, as opposed to the conventional anti-surge system, can diminish energy losses and associated pollutant emissions by approximately 33 percent.
压缩在工业应用中很普遍，并且因其大量的能源消耗而值得关注。因此，对压缩过程进行模拟和分析对于维护和节能工作至关重要。这些系统容易出现潜在不稳定的喘振工况，这就需要使用传统的防喘振阀，而这会导致相当大的能量损失。确保这些系统接近最优运行对于将能耗降至最低至关重要。在本文中，阐述了一种用于气缸 - 活塞机构的概念框架，旨在作为一种主动喘振控制系统进行设计和运行。此外，还构建了一个模块化的准一维模型，用于工业压缩系统的瞬态模拟，该模型整合了防喘振和主动控制系统的模型。本文提出了一种新颖的设计，其特点是气缸 - 活塞系统集成了一个强大的控制器，被认为是传统防喘振系统的一种潜在替代方案。严格检验了这种设计在扩大压缩系统运行范围和防止喘振方面的有效性。此外，基于质量、动量和能量守恒基本定律的热力学模型被应用于系统的每个组件。此外，本文还探讨了这种创新设计在显著减少能源浪费方面的益处。一个测试场景的模拟结果表明，与传统防喘振系统相比，采用气缸 - 活塞设计可将能量损失及相关污染物排放减少约33%。
