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Application of a new DES model based on Wray-Agarwal turbulence model in flow simulation of a mixed-flow pump Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-03-16 Leilei Ji, Haoming Li, Wei Li, Weidong Shi, Shuo Li, Yang Yang, Chensong Zhao, Ramesh K Agarwal
In recent years, it has been demonstrated for many two- and three-dimensional external and internal turbulent flows that the one-equation Wray-Agarwal turbulence model can compute the complex turbulent flow fields with high computational accuracy, excellent computational convergence and efficiency. In this paper, Wray-Agarwal (WA) turbulence model is employed as part of a detached eddy simulation (DES)
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Investigation into the predicted performance of a cooling fan for an sCO2 concentrated solar power plant Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-03-08 Francois D Boshoff, Sybrand J van der Spuy, Johannes P Pretorius, Christiaan J Meyer
An axial flow fan is designed for dry cooling of a sCO2 Brayton cycle for a CSP plant, and a scaled model of the fan is manufactured and tested experimentally in an ISO 5801:2017 Type A fan test facility. While the design procedure’s estimate of the total-to-static efficiency at the design flow rate is relatively high, at 74.4%, the experimental fan efficiency was found to be only 50.6%. This paper
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Energy loss mechanism of a full tubular pump under reverse power generation conditions using entropy production theory Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-03-02 Lijian Shi, Yiyu Chen, Xianlei Yu, Yi Han, Yao Chai, Muzi Xue
This paper investigates the energy dissipation mechanism of the internal flow field of the full tubular pump during reverse power generation and pump conditions, utilizing CFD and model test methods to research the device’s hydraulic characteristics, internal flow field and entropy production. The results indicate that the reverse power generation and pump conditions’ performance curves have opposite
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Heat transfer characteristics of the air-oil heat exchanger with spiral tube Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-02-27 Zhihai Kou, Baolin Cao, Qi Zhang, Binbin Li, Guangchao Li, Xunyan Yin
The cooling problem of hot-end components has become an important factor restricting the aero-engine performance, life and reliability. In order to improve the cooling quality of the cooling air, the supercritical aviation kerosene was used as a heat sink to cool the cooling air in a spiral heat exchanger. The flow and heat transfer process of the air-oil heat exchanger with spiral tube were numerically
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Investigation of non-axisymmetric endwall contouring in a high loaded turbine stator cascade Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-02-23 Zhengshuai Du, Le Cai, Yingjie Chen, Songtao Wang, Hongfei Tang, Jun Zeng
The intensity and structure of the secondary flows have significant influences on the turbine cascade losses. Combining with the extension method of Non-linear Programming by Quadratic Lagrangian (NLPQLP), two endwall parametric methods respectively based on the B-spline surface and Fourier series are used to optimize the aerodynamic losses of a turbine cascade. The optimization processes are based
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Thermal performance of three concentrating collectors with bifacial PV cells. Part II – parametrical study Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-02-08 Miguel Lança, João Gomes, Diogo Cabral, Sahand Hosouli
One of the problems in using PV cells to extract energy from sunlight is the temperature effect on PV cells. As the solar panel is heated, the conversion efficiency of light to electrical energy is diminished. Moreover, successive temperature elevations can cause dilatations in the array of cells which may also contribute to the degradation of the receiver. Some of the operating temperature mitigation
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A data-driven polynomial chaos method for uncertainty quantification of a subsonic compressor cascade with stagger angle errors Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-02-06 Haohao Wang, Limin Gao, Guang Yang, Baohai Wu
The probability-based uncertainty quantification (UQ) methods require a large amount of sampled data to construct the probability distribution of uncertain input parameters. However, it is a common situation that only limited and scarce sampled data are available in engineering applications due to expensive tests. In the present paper, the Data-Driven Polynomial Chaos (DDPC) method is adopted, which
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Design improvement for suction shape in rotary compressor Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-02-06 Joonhyung Kim, Munseong Kwon, Jaewoo Park, Sunghyuk Park, Woong Hwang
Rotary compressors applied to heating and cooling cycles accounts for a large proportion of the total energy consumed in the system. Therefore, improving compressor efficiency is crucial in order to reduce energy consumption. Design review and improvement efforts have primarily focused on compression and discharge parts with high pressure. However, due to the limitations in design improvements for
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Thermohydraulic performance parameter based experimental investigation of frustum shaped roughened solar air heater Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-01-29 Dharam Singh, Vikash Kumar
An outdoor experimental investigation was conducted to explore the thermohydraulic characteristic (Nusselt no. and friction factor) of artificial roughened solar air heater (ARSAH) having frustrum shaped roughened element on absorber plate. Data were recorded and further processed to generate Nusselt number and friction factor correlation to predict the effect of flow and roughness parameter on performance
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Characteristics of the axial compressor with different stator gaps in compressed air energy storage system Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-01-19 Pengfei Li, Zhitao Zuo, Xin Zhou, Jingxin Li, Wenbin Guo, Haisheng Chen
The axial compressor in compressed air energy storage (CAES) system needs to operate stably and efficiently within a wide working range. The stator gap plays a critical role in suppressing corner separation and enhancing blade throughflow. The primary objective of this study is to determine the optimal combination of stator gaps to further expand the stable working range of the compressor while ensuring
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Numerical study on the three-dimensional flow of water film on the outer surface of the hollow stationary blade Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-01-16 Yang Chen, Yujuan Zhao, Xiaodan Zhang, Yanhao Cao, Liang Li
In order to figure out the influence of water film on the performance of the turbomachinery, understand the mechanism of the interaction between the high-speed airflow and the water film in turbomachinery, and provide a reference for the design of the subsequent experiments and hollow stationary blade water removal by heating. The commercial software FLUENT with the Eulerian Wall Films model is used
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A numerical study on effect of intra and inter spaced winding configuration on performance of oil forced transformer cooling system Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-01-13 Yamala Muralikrishna, Seerapu Siva Satyanarayana Reddy, Mithilesh Kumar Sahu, M Mohan Jagadeesh Kumar
The present work aims at investigating, numerically, the heat transfer characteristics of transformer cooling system under forced circulation for three different winding configurations. The purpose of a transformer cooling system is to keep the hot spot temperature within the critical value for a long life of transformer, which increases with enhanced cooling of transformer windings. Thus, two different
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Modeling the co-combustion of bi-fuel blends in a drop tube furnace: A numerical approach Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2024-01-02 Subhajit Aich, Barun Kumar Nandi, Aditi Sengupta, Piyush Sharma
The present study focuses on the numerical modeling of the co-combustion of reject coal (RC) and sal leaves (SL) in a drop tube furnace (DTF) under different conditions, including air-fuel and oxy-fuel environments. The numerical results highlight the significant influence of replacing the N2 atmosphere with CO2 on the temperature profiles of individual fuels and their blends. For instance, when exposed
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Assessment of the Newcomen engine’s development potential as heat engine for low temperature waste heat Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-05-16 Gerald Müller, Branislav Mereš
There is a large but mostly unused energy resource available from low temperature waste heat with temperatures of 80–150°C. The lack of a cost-effective technology prevents the generation of power ...
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A review of nucleate pool-boiling heat transfer in different liquids and nanofluids Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-05-13 Khudir Z Zarrag, Firas B Ismail, Tan E Sann, Laith J Habeeb
The goal of this review is to examine the current state of the art in nucleate pool boiling heat transfer in a variety of different fluids. The review is divided into many sections that discuss hea...
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Study on modeling test method and the critical Reynolds number of a micro centrifugal pump Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-05-08 Ning Bao, Zihan Zhao, Chunlei Shao
In order to test the performance of the micro centrifugal pump and carry out performance analysis by using water instead of blood as the test medium, a modeling test method of the micro centrifugal...
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The effect of secondary passages on cavitation and radial forces in a liquid propellant turbopump Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-05-04 Yashwant Moganaradjou, Anindita Apurbaa Phukan, S Vengadesan, Dhiman Chatterjee, B Prejil Kumar, P Rijish Kumar, P Unnikrishnan Nair
Numerical studies on rocket pumps are computationally expensive and hence the secondary passages such as sidewall clearance gaps, wear ring gaps, axial balancing mechanism, coolant/lubricant paths,...
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Secondary air induced flow structures and mixing in a fixed bed combustor Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-04-28 Awais Junejo, Sergio Chapela, Jacobo Porteiro, Yasir M Al-Abdeli
Air staging features widely in biomass combustion from small space heaters to industrial-scale moving grate systems. Whilst studies have been conducted into the impact of air staging on emissions a...
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A detailed investigation of enhancement in heat transfer using Al2O3 nanofluid as coolant Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-04-27 B Swain, AR Pati, SS Mohapatra
In the current research, enhancement in the film and transition boiling regime is tried to obtain using Al2O3 nanofluid as coolant. The coolant properties such as physical, thermal and interfacial ...
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Advanced exergoeconomics of a steam power plant based on double-tier splitting of exergy destruction rates Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-04-26 Uchenna G Azubuike, Howard O Njoku, Onyemaechi V Ekechukwu
The advanced exergy and exergoeconomic analysis methodologies excel over their conventional counterparts by quantifying endogenous/exogenous exergy destruction rates and related costs that reveal t...
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Numerical study on cavitation flow and induced pressure fluctuation characteristics of centrifugal pump Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-04-26 Haichen Zhang, Haojie He, Wei Dong
In order to reveal the variation law between cavitation process and pressure pulsation characteristics of centrifugal pump, the internal flow characteristics and pressure pulsation characteristics ...
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Effect of wear damage on aero-thermal performance of the film-cooled squealer tip in a turbine stage Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-04-26 Mingliang Ye, Xin Yan, Kun He
Effects of wear damage on the aerodynamic performance, heat transfer and film cooling effect in the squealer tip region of a gas turbine stage were investigated under engine condition. Two wear par...
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Reliability based design of propeller and Rushton impellers for maximizing the overall heat transfer coefficient in coal gasification Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-04-25 J Purushottam Karthik, CM Raguraman, C Tara Sasanka
The present study aims to identify the optimal process parameters to maximize the Overall Heat Transfer Coefficient for preparation of coal-water slurry used for gasifier in power plants. For this ...
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Experimental and Numerical Optimization Study on an Airfoil-Shaped Heat Exchanger Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-04-21 Xuesen Yang, Wei Zhao, Xianda Cheng, Wei Dong, Weiwei Luo, Qingjun Zhao
Heat exchanger design is a laborious and time-consuming task that often relies on a trial-and-error process. In light of this, our study proposes a design method for optimizing airfoil-shaped heat ...
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Parameter sensitivity analysis of an electrochemical-thermal model for energy-storage lithium-ion batteries Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-04-12 Mingfei Li, Wanmei Sun, Mumin Rao, Shuxin Cui, Qiang Fu, Wei Chen
The lithium-ion batteries used for energy storage have the characteristics of large volume, high capacity, and long cycle life. Understanding the influence of physical parameters on electric potent...
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Numerical investigation on combustion flow characteristics of a micro gas turbine swirl combustor with different protruded bluff body structures Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-04-01 Hong Liu, Zhuoxiong Zeng, Kaifang Guo
A micro gas turbine swirl combustor with protruded bluff body is proposed. Compared with no bluff body, the protruded bluff body can significantly improve the combustion performance. When the bluff...
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Modifications of double-rim geometry to improve thermal performance of squealer tip in a turbine stage Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-30 Xin Yan, Jinxing Yu, Kun He
The double-recessed (i.e. double-rim) design is an alternative to improve thermal performance of the squealer tip. In this paper, the aero-thermal performance of double-rim squealer tip in a turbin...
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Design evaluation reviews on the savonius, darrieus, and combined savonius-darrieus turbines Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-28 Komsan Tantichukiad, Azmi Yahya, Anas Mohd Mustafah, Azmin Shakrine Mohd Rafie, Ahmad Suhaizi Mat Su
The combination of Savonius and Darrieus turbines had been proposed with the aim to overcome the weaknesses and complement the strengths from each design. This paper gathers relevant information an...
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Effect of flash-boiling spray on ignition and flame-holding characteristics under sub-atmospheric pressure Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-22 Junjie Miao, Kailin Jiang, Xiankai Li, Chao Yin, Yuxin Fan
To prevent the performance degradation and flameout of an afterburner/ramjet combustor under sub-atmospheric pressure, the flash-boiling spray by twin-orifice nozzle is attempted to incorporate wit...
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Utilizing artificial intelligence to develop an advanced compressor airfoil family for industrial, aero-derivative, and heavy-duty gas turbines Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-21 Alireza Shahrabi Farahani, Esmaeil Mohammadi, Mohammad Alizadeh
This paper describes the procedure for developing a new airfoil family. This airfoil family applies to heavy-duty, industrial, and aero-derivative gas turbine compressors ranging from subsonic to t...
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Theoretical model and simulation of a twin-Screw multiphase pump with novel smooth screw rotors for gas-Oil mixed transportation Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-21 Shiyang Pan, Jun Wang, Xihao Zhao, Hongxin Li, Zengli Wang, Maofei Geng, Dong Cui
A pair of screw rotors, the core components of twin-screw multiphase pumps, primarily determine the pump performance. The conventional screw rotor contains unsmooth edges caused by unsmooth points ...
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Parametric and economic analysis of condensing heat exchanger combined with organic rankine cycle for heat and water recovery from boiler flue gas Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-17 Erfan Ghamati, Javad M Roudaki
This study concerns with heat and water recovery from the flue gas of a natural gas-fired thermal power plant. A combined system of condensing heat exchanger (CHE) and Organic Rankine Cycle (ORC) i...
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A new method for reciprocating compressor fault diagnosis based on indicator diagram feature extraction Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-15 Weifeng Wu, Chengyi Li, Zhongqing Zhu, Xiaoran Li, Yin Zhang, Jing Zhang, Yifan Yang, Xiaoling Yu, Bingsheng Wang
The damage of vulnerable components inside the cylinder of reciprocating compressor, including the valve, piston ring, packing and piston ring, will cause the unexpected shutdown of the compressor ...
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Investigation of energy loss mechanism of shroud region in A mixed-flow pump under stall conditions Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-15 Leilei Ji, Shenglei He, Yongkang Li, Wei Li, Weidong Shi, Shuo Li, Yangyang, Yongfei Yang, Yong Gao, Ramesh K Agarwal
The energy consumption of various pumps accounts for almost 20% of the world’s electricity production, and the improvement of pump efficiency could save enormous energy consumption globally. In a m...
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Influence of vortex interactions on the exergy transfer and performance of OWC wells turbine Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-13 Kaihe Geng, Ce Yang, Hanzhi Zhang, Ben Zhao, Chenxing Hu, Jianbing Gao, Yanzhao Li
To provide deep dives about aerodynamic loss mechanisms in Wells turbines for wave energy conversion, a loss audit analysis was performed by numerical experiments in a monoplane Wells turbine with ...
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Adjoint based aero-structural design optimisation of a transonic fan blade Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-14 Cleopatra Cuciumita, Ning Qin, Shahrokh Shahpar
A novel optimisation process has been proposed in this paper to maximize the aerodynamic efficiency of a modern fan blade while satisfying the structural constraint imposed by the material limits. ...
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Effect of different axial deflected angles of reversed blade-angle slots on the axial flow compressor performance and stability Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-14 Haoguang Zhang, Xinyi Zhong, Enhao Wang, Chiyuan Zhang, Wuli Chu
The aim of the paper is to explore the influence of the reversed blade-angle slot casing treatment (RBSCT) and its axial deflected angle (ADA) on the compressor performance and stability, and to re...
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The influence of blade trailing edge modification on the pressure pulsation inside a two-stage centrifugal pump Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-13 Baoling Cui, Yinchu An, Xiaotian Han, Wenqing Li
Adjusting the clearance between the rotor and the stator in the centrifugal pump is an effective measure to reduce the pressure pulsation. In this paper, we investigated the influence of blade trai...
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Investigation on NO reduction behavior within complex atmosphere during pilot ignition of low calorific gas Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-09 Yongbo Du, Meng Xing, Jingkun Zhang, Lei Deng, Defu Che
Low calorific gas (LCG) is largely produced in industries and agricultures, but its utilization is difficult due to the poor combustibility and high NOx emission. The pilot ignition combustion has ...
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Study on the balance force regulation method of multi-stage pump balance drum system Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-08 Qian Chen, Yang Lihuan, Qi Zhipeng, Yang Congxin
Balanced drum systems are widely used in high-pressure multi-stage pump axial force balancing mechanisms. When the pump working, the fluid (solid-fluid mixture) collides with each other or rubs aga...
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Mechanism analysis and uncertainty quantification of blade thickness deviation on rotor performance Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-07 Wuli Chu, Tianyuan Ji, Xiangyi Chen, Bo Luo
The blade thickness distribution is an important geometric parameter of a compressor rotor blade. It determines the aerodynamic performance of a rotor, which should be carefully designed. However, ...
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Vortex structure and pressure fluctuation of a pump-turbine in pump mode using large Eddy simulation Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-03-07 Yang Zhang, Wei Jiang, Yuchuan Wang, Ye Li, Diyi Chen
Pump-turbines are usually used to ensure the stability of power system frequency and make up for the shortcomings of the intermittent nature of new energy such as wind energy. They are an important...
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Techno-economic analysis of thermal energy storage systems Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-27 Anil Kumar Patil, Manoj Kumar
The rising energy demand can be met by increasing the share of renewable energy by overcoming the barriers of poor conversion efficiency, intermittent energy supply, and lower thermo-economic viabi...
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The effect of wake vortex on the unsteady characteristics of tip leakage flow in a high-loading counter-rotating compressor Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-27 Qiangren Xu, Wei Zhao, Qingjun Zhao, Weiwei Luo, Xiuming Sui, Binbin Liu
The effect of upstream wake vortex on the unsteady characteristics of downstream tip leakage flow (TLF) in a high-loading counter-rotating compressor, have been revealed. For the strength of the ti...
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Numerical study of heat transfer and pressure drop of nanofluids in a combined porous media of hydrophobic and hydrophilic surfaces Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-21 Amir Babaei, Ehsan Aminian, Hamid Saffari
The present study provides a 3D numerical research on the hydro-thermal performance of water-Al2O3/CuO nanofluids and water/Al2O3-CuO hybrid nanofluid inside a U-bend tube incorporating a porous me...
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Investigations on the unsteady flow mechanism of the high-throughflow fan with partial-height booster rotor Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-20 Chuangxin Zhou, Shengfeng Zhao, Xin’gen Lu
This paper describes the use of numerical simulations to evaluate the complicated steady and unsteady flow in a high-throughflow fan stage. A detailed investigation of the aerodynamic performance i...
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Microwave application as an alternative method to increase the efficiency of PtC catalyst in PEMFCs Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-16 Ömer Şahin, Adem Yilmaz, Arzu Ekinci
This study aims to develop a high-performance Pt/C catalyst for the cathode and anode parts of a modified Proton exchange membrane (PEM) fuel cell in nitrogen and argon gases at different microwave...
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Experimental investigation of crossflow air effect on spray characteristics of gelled Jet-A1 fuel using an internally impinging air-blast atomizer Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-17 Balaguru Pandian, Rajarshi Das
The present study aims to experimentally analyse the influence of crossflow aerodynamic parameters on the spray characteristics of gelled Jet-A1 fuel. A Jet-A1 gel fuel is prepared by combining 85 ...
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Numerical investigation of trailing edge losses in transonic ORC turbines Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-17 Mustafa Bilgiç, Tolga Yasa, Özgür U Baran, Mehmet H Aksel
Profile loss that contributes 1/3 of their total loss is one of the major sources of entropy within the turbine blades. Understanding loss mechanisms and accurate prediction of them play critical r...
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The effects of the return channel geometry on the aerodynamic performance of a centrifugal compressor: A numerical study Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-15 MR Safari, M Anbarsooz, H Niazmand
In this paper, steady RANS (Reynolds-Averaged Navier-Stokes) numerical modeling of the return system of a centrifugal compressor is carried out to investigate the effects of various geometrical par...
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Study on passive suppression method of rotating stall in mixed-flow pump: Using different impeller rim structures Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-09 Leilei Ji, Shuo Li, Wei Li, Yuxin Huang, Weidong Shi, Yang Yang, Haoming Li, Yongfei Yang, Ramesh K Agarwal
Tip leakage flow (TLF) is not only an important factor causing hydraulic loss in mixed-flow pump, but also one of the inceptions of rotating stall. At present, limiting the stall of rotating machin...
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Investigation of turbulent flow in vortex cold-wall combustion chamber under different spark ignition times Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-07 Zhuoxiong Zeng, Ruibing Wu
Hydrogen is used as vortex working medium, a new structure of vortex cold-wall combustion chamber was adopted. Numerical investigation was performed to analyze the turbulent flow under different sp...
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Impact of the ending position of controllable speed casing on the flow stability in a transonic compressor rotor Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-07 Jiayi Zhao, Wanyang Wu, Jingjun Zhong
The structure of casing treatment has a significant influence on the stability expansion effect. The ending position of the rotatable ring is one of the important structural parameters in the contr...
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Improving the melting performance of phase change material (PCM) in a latent heat thermal energy storage unit via a non-uniform arrangement of longitudinal fin Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-02-05 Bohui Lu, Yongxue Zhang, Dong Sun, Cong Wang, Zhihao Wang, Mengxi Luo
The application of latent heat thermal energy storage (LHTES) technology in solar energy utilization is greatly restricted by the low thermal conductivity of phase change material (PCM). This paper...
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Flow characteristics of a centrifugal fan with optimized edge curvatures of an impeller front disk Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-01-31 Shuihua Zheng, Zhenghao Shao, Jianfei Liu, Jinxue Chen, Yiliang Li, Min Chai
In this study, the flow characteristics of different radiated impeller front disk fans were investigated by computational fluid dynamics to explore the effect of the radiated impeller front disk of...
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Assessment of the effectiveness of ventilation for gas turbine generator set safety Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-01-30 Yunfan Dai, Chuang Gao, Bao Li
Increasing global warming problems appeal to the employment of clean power generation machineries such as gas turbines. Gas turbine is gas-fired engine which is usually enclosed in an acoustic encl...
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Influence of the spanwise grooves on aerodynamic characteristics of the compressor cascade and rotor under different reynolds numbers Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-01-28 Wenguang Fu, Junyang Yu, Peng Sun
In order to study the influence of the suction surface spanwise grooves under different Reynolds numbers (Re) on the loss characteristics of highly loaded compressor cascade and rotor. In the prese...
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Early-Stage end-of-Life prediction of lithium-Ion battery using empirical mode decomposition and particle filter Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-01-28 Jianwen Meng, Toufik Azib, Meiling Yue
The predictive maintenance is a major challenge for improving battery safety without compromising performance. Its main objective is to predict the end-of-life (EOL) and assess the associated predi...
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Schlieren and mie-scattering visualization of an evaporating spray under marine diesel engine conditions Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-01-18 Rui Liu, Li Huang, Yue Ma, Dehao Ju, Mingzhi Feng, Xingcai Lu
Due to the critical influence on combustion, extensive research has been carried out to deepen the understanding of diesel spray evolution. However, for the greater share of land-based diesel engin...
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Integrated aerodynamic optimization for stationary components of squirrel cage fan Considering impeller-Volute interaction Proc. Inst. Mech. Eng. Part A J. Power Energy (IF 1.7) Pub Date : 2023-01-13 Zhen Wang, Zhen Li, Qingxin Shi, Yaping Ju, Chuhua Zhang
As the flow state in the volute plays an important role in the energy loss of the squirrel cage fan, the optimization design of the fan volute has drawn great attention. To further improve the over...