Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science最新文献

Performance evaluation of a solar based Brayton cycle integrated vapor compression-absorption trigeneration system for power, heating and low temperature cooling 用于发电、供热和低温制冷的基于太阳能的布雷顿循环集成蒸汽压缩-吸收三联供系统的性能评估

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-03-14 DOI: 10.1177/09544062241237418

Aftab Anjum, R. S. Mishra, Samsher

{"title":"Performance evaluation of a solar based Brayton cycle integrated vapor compression-absorption trigeneration system for power, heating and low temperature cooling","authors":"Aftab Anjum, R. S. Mishra, Samsher","doi":"10.1177/09544062241237418","DOIUrl":"https://doi.org/10.1177/09544062241237418","url":null,"abstract":"Among the various solar technologies, solar power tower (SPT) technology is being widely used for large-scale energy generation. Therefore, this work developed a trigeneration system for SPT plant that produces power, heating and cooling at low temperature efficiently from a high temperature SPT heat source. In order to create heating and low temperature (at −20°C) cooling benefits for food preservation, this trigeneration unit integrates a cascaded vapor compression-absorption refrigeration system combined with a helium Brayton cycle for power generation. The exergy-energy analysis was performed by the numerical technique using engineering equation solver software to evaluate the performance of the proposed SPT plant. The power output, exergy and energy efficiency of the SPT plant were found as 14,865 kW, 39.53% and 28.82%, respectively. The coefficient of performances values for cooling and heating were observed as 0.5391 and 1.539, respectively. Exergy evaluation revealed that approximately 78.18% of the total energy destruction of the entire plant is attributed to the solar subsystem only. Furthermore, a parametric investigation shows that the temperature of the evaporator, generator and helium turbine inlet, and the efficiency of the heliostat and receiver all have a significant impact on the plant performance. Furthermore, a comparative analysis with relevant previous studies has shown that the proposed system outperforms systems based on supercritical CO2 cycles and the Rankine cycles.","PeriodicalId":509477,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science","volume":"27 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140242637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermodynamic assessment of a novel solar powered trigeneration system for combined power generation, heating, and cooling 新型太阳能发电、供热和制冷三合一系统的热力学评估

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-02-18 DOI: 10.1177/09544062241230222

Aftab Anjum, RS Mishra, Samsher

{"title":"Thermodynamic assessment of a novel solar powered trigeneration system for combined power generation, heating, and cooling","authors":"Aftab Anjum, RS Mishra, Samsher","doi":"10.1177/09544062241230222","DOIUrl":"https://doi.org/10.1177/09544062241230222","url":null,"abstract":"Solar power tower (SPT) technology is the mature technology among the various concentrated solar technologies for energy generation. Therefore, it is necessary to develop the efficient energy generation system that utilizes the SPT plant. In the current study, a novel trigeneration system was presented to utilize the SPT for combined power generation, heating, and cooling. The trigeneration system consists a helium Brayton cycle and organic Rankine cycle (ORC) with ejector refrigeration system for recovering the waste heat. The power was produced by the helium Brayton cycle and ORC turbine whereas, cooling and heating was produced simultaneously by the condenser and evaporator respectively. For building applications such as hospitals and hostels, the heating and cooling effects were generated at 50°C and 10°C respectively. Finally, the optimal system exhibits exergy and energy efficiency of 25.12% and 23.3%, respectively, when all the studied parameters are taken into consideration. Apart from this power output, heating and cooling productions were observed as 14,998, 60.52 and 8.25 kW and respectively at the 2.3 of compressor pressure ratio, 197.2°C of inlet temperature of ORC turbine.","PeriodicalId":509477,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science","volume":"4 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139959536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical characterization of novel Parthenium hysterophorus and Jute reinforced polymer matrix composites for light weight medium load applications and application of MADM-VIKOR approach 用于轻质中负荷应用的新型 Parthenium hysterophorus 和黄麻增强聚合物基复合材料的机械特性分析及 MADM-VIKOR 方法的应用

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-02-16 DOI: 10.1177/09544062241229935

V. Mahesh

{"title":"Mechanical characterization of novel Parthenium hysterophorus and Jute reinforced polymer matrix composites for light weight medium load applications and application of MADM-VIKOR approach","authors":"V. Mahesh","doi":"10.1177/09544062241229935","DOIUrl":"https://doi.org/10.1177/09544062241229935","url":null,"abstract":"This study explores the use of natural fibers in composite materials to enhance mechanical properties and reduce water absorption for lightweight medium load applications. The approach involves hybridizing Parthenium hysterophorus (PH) and Jute with epoxy L-12 matrix in different stacking sequences to create four tri-layer composites. Mechanical tests following ASTM standards revealed that composites with Jute fibers on top and PH fibers in the middle exhibit superior mechanical performance and reduced water absorption, making them suitable for such applications. The tensile strength of composite (CP4) with PH fiber at center and Jute fibers at extreme was found to be 1.7 times higher compared to composite with all three layers of PH fiber (CP1). Similarly, the flexural strength and compressive strength of CP4 is found to be 60% and 80.5% more compared to CP1. Shore D hardness of CP4 is found to be 1.29 times better compared to CP1. Whereas the energy absorption due to impact load of CP1 is better compared to its counter parts wit CP1 exhibiting 71.15 times better compared to CP4. Scanning electron microscope (SEM) analysis of fractured surfaces provides insights into fiber bonding and fracture mechanisms. Overall, this research underscores the potential of natural fiber hybrid composites for improved mechanical characteristics and water resistance in various applications, highlighting specific fiber combinations and stacking sequences.","PeriodicalId":509477,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science","volume":"46 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139961305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Global exponential convergence and synchronization for exponential numerical competitive neural networks with different time scales and fuzzy logic 具有不同时间尺度和模糊逻辑的指数数值竞争神经网络的全局指数收敛和同步性

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-02-16 DOI: 10.1177/09544062231225513

Yali Yang, Yuntao Liu

{"title":"Global exponential convergence and synchronization for exponential numerical competitive neural networks with different time scales and fuzzy logic","authors":"Yali Yang, Yuntao Liu","doi":"10.1177/09544062231225513","DOIUrl":"https://doi.org/10.1177/09544062231225513","url":null,"abstract":"For nonlocal fuzzy delayed competitive neural networks, a novel difference model is first developed in this article using the Mittag-Leffler Euler difference method. Secondly, the existence of a sole globally bounded solution and globally exponential stability to the discrete-time networks are addressed based on Banach contractive mapping principle and the constant variation formula for sequences. Besides, exponential synchronization of the discrete-time networks is investigated and a feedback controller is designed from the viewpoint of the theory of controls. It is the first time to consider nonlocal fuzzy delayed competitive neural networks by using Mittag-Leffler Euler differences. In contrast to nonlocal discrete approaches, such difference competitive neural networks could preferably figure the features of continuous networks. The difference method in this paper extends and improves the traditional difference approaches, for example, Adams-Bashforth Euler differences. Moreover, this article explores some avenue for the research of discrete-time fractional-order systems and develops a set of theories and methodologies for the future investigations.","PeriodicalId":509477,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science","volume":"40 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139961649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reliability-based topology optimization of large-tonnage crane boom head with stress constraint 基于可靠性的大吨位起重机臂头应力约束拓扑优化

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-02-16 DOI: 10.1177/09544062241228983

Shangbin Yang, Jinde Yang, Jiabin Cai

引用次数: 0

Revisiting the degree of quick-return of the linkage considering programmable input for contemporary mechanical systems 考虑到当代机械系统的可编程输入，重新审视联动装置的快速回复程度

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-02-16 DOI: 10.1177/09544062231226032

Hao Chen, Weizhong Guo, Zhenghao Weng, Jiayu Chen

{"title":"Revisiting the degree of quick-return of the linkage considering programmable input for contemporary mechanical systems","authors":"Hao Chen, Weizhong Guo, Zhenghao Weng, Jiayu Chen","doi":"10.1177/09544062231226032","DOIUrl":"https://doi.org/10.1177/09544062231226032","url":null,"abstract":"Starting from the programmable motion performance of modern actuation technology, this study elucidates that the degree of quick-return in a mechanical system is no longer entirely dependent on mechanism design. A theoretical framework is proposed for analyzing and synthesizing the degree of quick-return in contemporary mechanical systems based on time efficiency. This study adopts a functional perspective, first extending the traditional definition describing the degree of quick-return mechanism to encompass broader mechanical systems. Subsequently, we present a general formula for calculating the time-ratio and travel velocity-ratio coefficients under contemporary technological conditions, supported by a detailed mathematical derivation. Finally, a corresponding procedure is established for analyzing and synthesizing the degree of quick-return in a mechanical system, fostering improved collaboration between managers and designers. Case studies demonstrate that designers can achieve the desired degree of quick-return in mechanical systems and robots by leveraging time efficiency. The theoretical framework introduced in this paper is versatile and can benefit various industries, notably the field of robotics. This broadens the applicability of the degree of quick-return concept, marking a significant advancement in enhancing the time efficiency of mechanical systems.","PeriodicalId":509477,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science","volume":"43 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139960456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on heat transfer property of air-air micro channel evaporator 空气-空气微通道蒸发器传热性能研究

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-02-16 DOI: 10.1177/09544062241230206

Xuanyi Sun, Zhe Wu, Jing Li, Xiaobao Zhao, Yuhe Shang, Qihe Li

{"title":"Research on heat transfer property of air-air micro channel evaporator","authors":"Xuanyi Sun, Zhe Wu, Jing Li, Xiaobao Zhao, Yuhe Shang, Qihe Li","doi":"10.1177/09544062241230206","DOIUrl":"https://doi.org/10.1177/09544062241230206","url":null,"abstract":"Heat exchanger with air-air micro channel is widely used in the refrigeration and air-conditioning industries due to its excellent energy saving and low cost. Recent researches on the air-air micro channel has achieved some available correlations to solve heat transfer coefficient in the channel. However, the available correlations cannot correspond our heat exchanger because the heat transfer for two-phase flow in the micro channel is complex. In this paper, we manufactured an evaporator with the aluminum micro channel heat exchanger and tested its heat transfer efficiency. The heat exchanger, which was filled with R32 as the working fluid, was characterized with the liquid filling ratio [Formula: see text] ranging from 0.21 to 0.61. We also investigated the thermal performance of the heat exchanger under various temperature differences of the cold and hot air inlets, which ranges from 3°C to 21°C. The experimental results show that the internal boiling heat transfer coefficient increases first and then decreases, with the increasing of liquid filling ratio and the increasing of temperature. On basis of the experimental data, we obtained a new correlation associating with the liquid filling ratio and the temperature difference, which can be used to predict the heat transfer coefficient in the channel. Comparing the predicted value from our correlation with the experimental data, around 88% experimental data falls in the ±15% error bands and the mean absolute error is 7.91%.","PeriodicalId":509477,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science","volume":"57 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139960943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and implementation of a 2-DOF 5R parallel mechanism with a coaxial-driven layout 设计和实现具有同轴驱动布局的 2-DOF 5R 并联机构

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-02-03 DOI: 10.1177/09544062231224525

Zefeng Zhang, Zhili Hou, Lina Li, Huibin Qin, Muddaser Abbas, Muhammad Siddique

{"title":"Design and implementation of a 2-DOF 5R parallel mechanism with a coaxial-driven layout","authors":"Zefeng Zhang, Zhili Hou, Lina Li, Huibin Qin, Muddaser Abbas, Muhammad Siddique","doi":"10.1177/09544062231224525","DOIUrl":"https://doi.org/10.1177/09544062231224525","url":null,"abstract":"In order to expand and improve the reachable workspace of planar parallel manipulators, a 2-DOF 5R parallel mechanism with a coaxial-driven layout is proposed. The configuration analysis and structural design are carried out, and the kinematic model is presented to conduct simulation analysis. The results indicate that the layout with the axes of the two driving devices overlapping has a larger workspace and a more compact structure. Meanwhile, a closed-loop PID control system is established to evaluate the accuracy of the proposed mechanism and analyse the kinematic error under different gain parameters. Simulation results indicate that the kinematic performance of the mechanism has improved. The control system is constructed based on using a motion control card as the primary control component and two servo motors as the drive device. Additionally, gain values are adjusted by the driver to reduce the deviation of the servo motors. Finally, the design of the prototype is deployed, and the experiment proved that the 2-DOF 5R planar parallel mechanism (PPM) with a coaxial-driven layout has the advantages of a large workspace, fast dynamic response, high stiffness, and easy control. The design of the 2-DOF 5R PPM solves the problem of single operation and high repeatability, which is increasingly utilized in the fields of electronics, food, daily chemicals, and pharmaceuticals.","PeriodicalId":509477,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science","volume":"13 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139683295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Path tracking control for autonomous vehicles using hybrid fault-tolerant approach 利用混合容错方法实现自动驾驶车辆的路径跟踪控制

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-02-02 DOI: 10.1177/09544062231223852

Ruinan Chen, Jie Hu, Minchao Zhang, Linglei Zhu, Xinkai Zhong

{"title":"Path tracking control for autonomous vehicles using hybrid fault-tolerant approach","authors":"Ruinan Chen, Jie Hu, Minchao Zhang, Linglei Zhu, Xinkai Zhong","doi":"10.1177/09544062231223852","DOIUrl":"https://doi.org/10.1177/09544062231223852","url":null,"abstract":"Signal delay, execution deviation and reference model mismatch are common faults in autonomous vehicles, resulting in reduced path tracking control performance. To improve the path tracking performance of autonomous vehicles under fault conditions, this paper proposes a hybrid fault-tolerant (HFT) path tracking control approach, in which passive fault-tolerant path tracking control and fault observer-based hybrid active fault-tolerant path tracking control are introduced. The probable usual errors in path tracking are first examined and analyzed, together with the vehicle kinematic model and a typical autonomous driving system. Then, a slide-mode-based passive fault-tolerant path tracking controller is designed and integrated with a fault observer to create a hybrid active fault-tolerant controller. Finally, simulations and experiments are conducted, and the results demonstrate that our proposal is effective. After convergence of the fault observations, the lateral tracking error is less than 0.2m and the root mean square of the tracking error is 44% smaller than the LQR approach.","PeriodicalId":509477,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science","volume":"5 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139683362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effects of Multiwalled Carbon Nanotube to the performance of a refrigeration system 多壁碳纳米管对制冷系统性能的影响

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Pub Date : 2024-02-02 DOI: 10.1177/09544062231224955

Sania Bibi Cassim, A. Hairuddin, Vira Cut

{"title":"The effects of Multiwalled Carbon Nanotube to the performance of a refrigeration system","authors":"Sania Bibi Cassim, A. Hairuddin, Vira Cut","doi":"10.1177/09544062231224955","DOIUrl":"https://doi.org/10.1177/09544062231224955","url":null,"abstract":"By incorporating nanofluid technology and nanolubricants into compressors, the performance can be enhanced while also lowering worldwide fuel consumption and aiming at developing cleaner, more efficient energy sources and uses. The globe is being confronted with energy security issues and heating, cooling and HVAC systems highly contribute to it. Hence, it is critical to save energy and improve the efficiency of the refrigeration cycle. This study presents experimental and theoretical findings in order to investigate the effect of Polyester (POE)-oil based multiwalled Carbon Nanotube (MWCNT) nanolubricant on the Coefficient of Performance (COP) of a refrigeration system. The objectives of this study is to analyze the stability of MWCNT nanofluids, to obtain the COP of a refrigeration cycle run with pure POE oil and MWCNT nanofluids with different concentrations respectively. The experiment was conducted by preparing 0.55, 0.65 and 0.70 g/l MWCNT nanofluid by using the two step method. The most effective concentration used in the refrigeration system was referred to the one that resulted in the highest COP. It was determined from the experiment that 0.55 g/l MWCNT nanofluid resulted in a higher COP of 5.766 as compared to the other two concentrations. Besides, it showed an improvement of 34.6% in COP as compared to the COP of using pure POE oil in the refrigeration system, which was found to be 4.285. The 0.65 g/l and 0.70 g/l concentration of MWCNT resulted in a COP of 5.618 and 5.617, respectively. The compressor work was also analyzed and was found to be reduced noticeably after adding MWCNT nanoparticles. Hence it can be concluded that the increment of MWCNT concentration in nanofluids increases the COP of the refrigeration system but only up to a certain limit of concentration.","PeriodicalId":509477,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science","volume":"11 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139683704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0