Diagnosis of Air-Gap Eccentricity Fault for Inverter Driven Induction Motor Drives in the Transient Condition
Modelling and Simulation Study of a Helicopter with an External Slung Load System
Comparative Study of Single Phase Power Inverters Based on Efficiency and Harmonic Analysis
Trichotomous Exploratory Data Analysis [Tri–EDA]: A Post Hoc Visual Statistical Cumulative Data Analysis Instrument Designed to Present the Outcomes of Trichotomous Investigative Models
LabVIEW Based Design and Analysis of Fuzzy Logic, Sliding Mode and PID Controllers for Level Control in Split Range Plant
Effective vehicle toll operation can be greatly enhanced by efficient monitoring mechanism. This can be achieved through the deployment of an automated monitoring system at every vehicle toll point. This paper presents a modality for implementing a microcontroller based monitoring system for effective vehicle toll operations. The system consists of Arduino Mega 2560 microcontroller unit, two units of ultrasonic sensors MA40E7R and a unit of SIM 800L GSM/GPRS Module. Each unit of the ultrasonic sensor, positioned at the toll point, transmits ultrasonic pulses into the air and detects the reflected waves from a vehicular object. When the two units have detected reflected waves simultaneously, a protocol car Found is implemented in the microcontroller unit. Each time this protocol is implemented, the counting sequence of the microcontroller is increased by a step. For each increment, a time stamp and count sequence is recorded in the microcontroller's memory slot; and a protocol send DataOnline is implemented through the SIM 800L GSM/GPRS module simultaneously. Arrangement was made using a dedicated cloud facility for real-time archiving and monitoring of data generated by the ground station while testing was going on. The system's operational cycle ensures complete elimination of human bias and guarantees minimal systemic error thereby ensuring effective monitoring operation.
Many industrial facilities, especially those in the chemical, oil & gas and petroleum industries, involve inherent risk in operations due to the processing of material which are hazardous in nature. It is therefore, necessary to precisely identify & analyze the hazards, its operability issues, associated risks and its consequences. Safety instrumented systems (SIS) are often used to reduce the risk associated with process or plant to the acceptable or tolerable level. The reliability of safety function(s) implemented through SIS is determined by the magnitude of risk reduction and is provided in terms of safety integrity level (SIL). The determination of SIL is the method of determining the risk reduction magnitude to safety instrumented function (SIF). There are several techniques used to establish SIL to SIF. These are qualitative, quantitative or mix of both, based on the application under consideration. Layer of protection analysis (LOPA) is one of the prevailing methods to determine the SIL. This paper aims to establish when, why and how to apply the LOPA to determine the safety integrity level (SIL) and finally reached to the conclusion that LOPA is one of the best method for determine the SIL.
Belt is an important and expensive part of the conveyor belt system. At the early seconds of the starting process, maximum belt stretch is found which causes sudden failures or enormous starting belt stress. These dynamic stresses are difficult to measure and their presence could therefore go undetected. The transient stretch in the belt is investigated for the actual belt conveyor during full load starting condition. Belt conveyor system is considered as the series of vibrating mass and this unit is a viscoelastic segment; equation of motion is developed through the approach of Lagrange to study this process. Simulation technique is used to observe transient dynamic quantities. Dynamic belt stretch is studied in terms of dislocation within the conjugative units of endless belt. Result indicates that the maximum dynamic stretch value is 1.7 percent of the total length of the belt which comprises standard values specified for system. Dynamic stretch analysis would reveal the actual behavior of dynamic belt stresses in the conveyor belt.
Last forty years there is tremendous improvement in machining and development in technology. With increase in competition in market and to realize high accuracy, currently the non-conventional machining is becoming lifeline of any trade. One amongst the foremost necessity, the non-conventional machines like CNC Plasma flame Machins increase its demand in market due to high accuracy, finishing, and ability of machining any arduous materials. In this paper literature has been studied in the context to parametric optimization of CNC Plasma flame Machining. Different steel materials were used for experiment purpose. The various parameters were is taken for the analysis to find out optimized specification parameter such as cutting speed, gas pressure and air gap. The experimentation has been done to seek out the optimum parameters like cutting dimension, surface roughness value & amount of material removed as well as wear of nozzle.
Railways in this modern era, offer important contribution for building a nation by exchange of modern and progressive ideas which perpetuates social resonance and economic productivity. Rail applications adapt technological advancements to improve railway network “Engine” plays the important part and plays the important unit of the system. The engine can be differentiated on the basis of the fuel system and its combustion. Cummins India Limited provides the engines for various applications like railway, defense, marine, pump, etc. This paper is basically for rail application which describes the new concept for rail engine introduced for Parel Central railway. This paper proposes to integrate the engines for railway application by controlling the mechanical engine with the electronic controller. This will provide automated control to the mechanical system. The integration of engines to railway basically providing the safety features to engines, the protection to the engine as well as controlling two engines with the electronic controller. Hence, the modified architecture system for rail engine which will interface both the engines so that it will work properly and covering all safety features and sensor data for a smooth functioning of rail engine. The synchronization of two engines for same train to work simultaneously where also proposed using the GAC electronics governor controller.