May '19


The IUP Journal of Mechanical Engineering

ISSN: 0974-6536

UGC Approved Journal @ Sl.No: 48642

A 'peer reviewed' journal distributed by EBSCO and Proquest Database

It is a quarterly journal that publishes research papers dealing with Production engineering, Industrial engineering; Materials engineering; Solid mechanics; Solid and structural mechanics; Fluid mechanics; Fracture mechanics; Biomechanics; Metallurgy, Tribology, Heat transfer; Welding technology; Composite materials; Machine design – CAD/CAM; Renewable energy technology; Mechanical maintenance; Refrigeration & Air-conditioning; Quality control and Operational research, etc.

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Focus Areas
  • Mechanics of Solids
  • Materials
  • Fluid Mechanics
  • Combustion and Fuels
  • Thermodynamics/Heat Transfer
  • System Dynamics and Controls
  • Design
  • Design, Manufacturing and Product Development
  • Ocean Science and Engineering
  • Energy Science and Engineering
  • Bioengineering
  • Micro and Nano Engineering
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Article   Price (₹) Buy
Computer-Aided Modeling of Six Chamber Rotary Engine
50
A Mathematical Model for the Performance Evaluation of a Fertilizer Plant
50
Machining Parameters Optimization of AISI 4340
50
An Experimental Investigation of Thumba-Diesel Fueled Operated Variable Compression Ratio Diesel Engine
50
     
Contents : (May 2019)

Computer-Aided Modeling of Six Chamber Rotary Engine
Bhushan R Mahajan, S S Khandare and A V Vanalkar

The paper studies the concept of rotary type stroke-less engine consisting of six vanes fixed on splined eccentric rotor with integrated shaft mounted on stator. The chosen suitable sizes of diameter and length are 100, 70 and 70 mm for stator, rotor and vanes, respectively. Computer-aided modeling of all components along with assembly of engine has been done using Creo-Pro engineer software by choosing different vane angles from 0 to 360º at 5º interval. Various sizes of stator and rotor diameter were chosen, and then the volumes and pressure of different zones along the rotor were recorded for getting the optimized value of compression ratio and cubic capacity. The simulation analysis with and without combustion of air fuel mixture, using Excel tool, was carried out to find the variation of pressure versus vane angle.


© 2019 IUP. All Rights Reserved.

Article Price : Rs.50

A Mathematical Model for the Performance Evaluation of a Fertilizer Plant
Sanjeev Kumar

Availability is considered as a crucial metrics used to evaluate the performance of a fertilizer plant. The paper develops an availability model of the urea decomposition system of a fertilizer plant to quantify the values of availability indices and to identify the most critical equipment that mainly affects the system’s performance. The Markovian approach was adopted to model the system behavior. A transition diagram was constructed for the developed model and differential equations of the developed model were formulated to obtain the state probability. The availability at steady state was analyzed and investigated. The developed model was verified and its validation was carried out. A real data of industrial system in fertilizer plant was applied to validate the developed model and the effect of failure and repair rates at different mission times was presented and discussed. The model output identifies the critical subsystems and the equipment which mainly influences the system’s performance. Consequently, the developed model is considered as an excellent tool for the system’s performance evaluations. The performance has been optimized using Genetic Algorithm (GA). The findings of the paper will be highly useful to the plant management for timely execution of proper maintenance decisions and thus to enhance the system performance.


© 2019 IUP. All Rights Reserved.

Article Price : Rs.50

Machining Parameters Optimization of AISI 4340
Jignesh Khara, Manojkumar V Sheladiya and G D Acharya

The paper focuses on the experimental assessment of the machinability aspects (surface roughness (Fa), cutting forces (Fc) and temperature (T)) while turning AISI 4340 alloy steel utilizing carbide tools. Optimization of machining parameters that have an impact on machinability aspects is exceptionally valuable to reduce production cost and time for machining part at the required surface quality. The experimental study is based on Design of the Experiment (DoE) using general full factorial approach and analyzes the parameters that influence the response variables. Analysis of Variance (ANOVA), regression analysis and Gray Relational Analysis (GRA) are employed to study the effects, significance, percentage contribution, modeling and optimum setting of the given process parameters.


© 2019 IUP. All Rights Reserved.

Article Price : Rs.50

An Experimental Investigation of Thumba-Diesel Fueled Operated Variable Compression Ratio Diesel Engine
Rahul Goyal, Mayur Deo, Nishant Chaudhary, Parth Chauhan, Aditya Chauhan and Pradeep Kumar Gupta

The paper aims at depicting the effects of varying loads at various Compression Ratios (CRs) using various thumba oil-diesel blends on a Variable Compression Ratio (VCR) engine. The effect of thumba methyl esters in different proportions with diesel on engine characteristics was investigated. A series of short-term tests were conducted on a single cylinder, 3.6 kW, water-cooled, stationary, VCR, diesel engine. Optimal CR and blend ratio were determined for maximum efficiency and minimum emissions. Characterization of fuel properties for all the test blends was conducted. The performance and emission characteristics of the diesel engine for thumba oil blends at both rated and optimal CR were compared with those of pure diesel. B20 blend was inferred as optimal blend as it provided optimal results in terms of Brake Thermal Efficiency (BTE) and Brake Specific Fuel Consumption (BSFC) and also provided substantial decrement in emissions though nitrogen oxides (NOx) emission increased marginally. This blend, when tested with various CRs, provided CR 18 as the optimal result. Hence, it was established that the use of thumba oil-diesel B20 blend at CR 18 will provide optimal environmental benefits.


© 2019 IUP. All Rights Reserved.

Article Price : Rs.50

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