Systematic Irrigation System Deploying Sensor Technology
Diagnostic and Therapeutic Device for Knee Injury
5-DoF Upper Limb Exoskeleton Controlled through Intelligent Semi-Automated Shared Tongue Control
Therapeutic Based Wearable Postural Control System for Low Back Pain
Transforming Organ Transplantation and Medical Education Advancements in 3D Printing Technology
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
LabVIEW Based Design and Analysis of Fuzzy Logic, Sliding Mode and PID Controllers for Level Control in Split Range Plant
Trichotomous Exploratory Data Analysis [Tri–EDA]: A Post Hoc Visual Statistical Cumulative Data Analysis Instrument Designed to Present the Outcomes of Trichotomous Investigative Models
This research work provides an energy meter prepayment to enable estimation of energy use and to recognize the maximum market demand. The Proteus 8 device application illustrates the prepaid energy meter principle. The key elements are AVR, Voltage and Current, LCD and Relay and Power. The key sections are AVR. Electricity has been one of the most essential human needs, and is widely used for domestic, manufacturing, and agricultural. Today's carbon payment program requires effort and money. This research work explains how the energy meter device is included in the prepaid. Having this device would help the user in terms of power consumption. It is easy to run and economical. The prepayment method often profits from substantially reducing human mistakes when calculating readings and recording information. This will make available a fully designed and constructed Energy Meter based on Global System for Mobile communication (GSM) technology to the Electricity Companies in Nigeria. The functionalities provided by the GSMBased Prepaid energy meter, will provide accurate consumption of power calculation of electricity by the consumers, automation of the billing system in Nigeria. This will enhance efficient use of electricity by customers and easy recharge of such meters.
Water consumption of a solar powered evaporative air cooler constructed using locally available materials such as galvanized iron, thin wooden strips, car radiator fan and submersible water pump of low power types has been 3 experimentally investigated while cooling a room space of approximately a volume of 43.5 m . Test results on the cooler 3 configurations indicated the water consumption ranging from 6400-14400 cm , the period it takes to refill the water tank ranging from 10-22.5 hours, temperature drop ranging from 4.6-7.2 °C while the cooling effectiveness calculated has been between 35.4%-97.3%. In this work, humidity and temperature control unit has been integrated to control water supply thereby regulating the humidity level of the room space while cooling. This system consumes 0.05 kWh of energy for 6 hours of operation as against 6.75 kWh energy consumption of a 1.5 HP AC. This technology is efficient in improving the indoor air quality and it is suitable for cooling application in villages, and other remote areas where there is no grid extension.
Due to overall performance regarding high power density and simple control, Brushless DC (BLDC) motors are broadly used in speed drive applications. The torque of BLDC motors is steady under ideal conditions. With the advent of BLDC motors, high speed automobile industry is booming day by day. Here, a converter topology is proposed for four quadrant operation of BLDC drive. The motion operation is carried out by conventional emf injection method; while the braking operation is conceded by regenerative braking. The present work focuses on multi quadrant operation and tuning the performance of BLDC drive. The simulation studies with regenerative braking mechanisms employing BLDC drive shows better adaptability to the electric hybrid vehicles. The MATLAB SIMULINK simulation results show the performance of the proposed methodology. The corresponding prototype modeling is also presented here with electric hybrid vehicle.
Substituting composite structures for conventional metallic structures has many advantages because of strength to weight ratio. Laminated composites, with their advantage of higher specific stiffness, gained substantiality in the field of torque carrying structures through many applications. Composite drive shafts has the ability of being the lighter and longer life drive train with higher critical speed. This work aim stop provide an alternative of conventional steel drive shaft for an automotive application and investigates for different combinations of composite materials and different stacking sequence opposite torque directional so determine the natural frequency of composite drive shaft with the help of ANSYS 18.1.
In the present, Permanent Magnet Synchronous Motors (PMSMs) are extensively used in many industrial applications due to its advantages over conventional synchronous motor. In the PMSM, the rotor is made of a special-shaped rare- earth permanent magnet instead of the field windings. This motor has some certain advantages such as simple structure, small size, light weight and large overload capacity. Therefore, this motor becomes compact and efficient with high dynamic performance. However these motors failed during operation and consequently large revenue losses for industries. Hence, it is essential to diagnose these faults before occurring for protection of any industrial plant. Therefore, Condition Monitoring of PMSMs are extremely studied in the past and also essential for safe guarding of an industrial plant. In the past, PMSMs faults have been analyzed and diagnosed with help of many Condition Monitoring techniques. In this paper, a comprehensive review has been done for PMSM faults and their diagnostics techniques.