Electric equivalent model for induction electrode less fluorescent lamps
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This paper presents an electric equivalent circuit model for induction electrodeless fluorescent lamps that uses passive components to account for the real and reactive power of the lamp. The model considers core losses and the reactive characteristics of the lamp, which were not included in previous models. The methodology obtains and validates the lamp model using a series-parallel resonant half-bridge inverter ballast. Simulations using the proposed model show excellent agreement with experimental results.
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Fluorescent lamps are commonly used in our homes as a source of light. The conventional lamps use a choke and a starter arrangement for starting discharge in the tube. Under normal working conditions an appreciable potential drop occurs across the choke. The circuit being inductive the power factor is also low. Now is there any way of utilizing this voltage drop? Experiments were carried out with a view to using this potential drop to provide energy at low wattage without hampering the normal operation of the tube light. Interesting results were obtained. The power factor was also found to improve. In this paper a method of utilizing the voltage drop across the choke of a fluorescent lamp as a source of energy has been elaborated. Parantap Nandi"A Novel Technique of Power Extraction from a Conventional Fluorescent Lamp" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-1 , December 2017, URL: http://www.ijtsrd.com/papers/ijtsrd5776.pdf http://www.ijtsrd.com/engineering/electrical-engineering/5776/a-novel-technique-of-power-extraction-from-a-conventional-fluorescent-lamp/parantap-nandi
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The High Brightness LEDs for street lighting has ga ined popularity in street lighting owing to energy efficiency and the long life. The amalgamate d feature of brightness and the dimming solutions makes it equally adoptable in outdoor lig htings. The street lighting utilizes the power supply from the lines. The invent of renewabl e energy resources for appliances and illumination systems highlights the usage of solar system for lighting and heating systems. The solar photovoltaic panels are most featured sol utions. The standalone PV systems require the designing knowledge of electrical,thermal and optical properties of LEDs. These parameters allow the development of driver system f or design of the luminaire. Different strategies have been proposed for driver circuits t o provide stable characteristics. The selection of Drivers is dependent on various factor s like,energy efficiency,cost effectiveness,operation and maintenance,losses as sociated with the components and the assembly. The aim is to obtain a stable driver syst em for reliable operation using solar energy. The power supply and the battery management system reflect the efficient operation of the complete system. The approach is to design a nd manage a driver system for highly efficient HB-LEDs for street lighting and commercia l outdoor applications. The multiple stages enhance the efficiency by maintaining the de ciding factors such as power factor,losses and the long life. The 3 stage and expandable conve rter topology uses the maximum power point tracking and empowers the LEDs for required n umber of hours of glowing. An approach has been made to improve the energy conver sion efficiency along with standby power consumption management system during the wint er seasons which is a crucial factor around 92% has been made. The innovative methodolog y provides groundbreaking LED driver systems that help the consumers to gain a co mpetitive edge.
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Solar modules are systems which convert sunlight into electricity using the physics of semiconductors. Mathematical modeling of these systems uses weather data such as irradiance and temperature as inputs. It provides the current, voltage or power as outputs, which allows plot the characteristic giving the intensity I as a function of voltage V for photovoltaic cells. In this work, we have developed a model for a diode of a Photovoltaic module under the Matlab / Simulink environment. From this model, we have plotted the characteristic curves I-V and P-V of solar cell for different values of temperature and sunlight. The validation has been done by comparing the experimental curve with power from a solar panel HORONYA 20W type with that obtained by the model.
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International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
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Ecway Technologies is a software development company with offices in multiple cities in Tamil Nadu, India. They can be contacted via phone or email.
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Cloudsim power allocation for statistical qo s provisioning in opportunistic...
The document proposes a power allocation scheme for statistical quality-of-service provisioning in multi-relay cognitive networks. The scheme first chooses between direct transmission or relay transmission based on channel state information. It then performs efficient power allocation according to the transmission mode under average transmit power constraints, interference power constraints, and a peak interference constraint to meet quality-of-service requirements. Simulations show the proposed scheme outperforms max-min criterion and equal power allocation policies by achieving higher throughput while involving at most two relays for transmission.
Cloudsim distributed web systems performance forecasting using turning bands...
The document discusses using the Turning Bands method to forecast the performance of distributed web systems. Real-life data was obtained from an experiment monitoring a group of web servers worldwide using an agent system called MWING located in different parts of Poland. The results showed good quality in predicting web performance when European web servers were monitored from an agent in Gliwice, Poland using the Turning Bands method.
Cloudsim distributed processing of probabilistic top-k queries in wireless s...
This document summarizes a paper on distributed processing of probabilistic top-k queries in wireless sensor networks. It introduces the concepts of sufficient and necessary sets, which can facilitate localized data pruning in clusters. It then describes three algorithms - sufficient set-based, necessary set-based, and boundary-based - for intercluster query processing with bounded communication rounds. Finally, it presents an adaptive algorithm that dynamically switches between the three algorithms to minimize transmission cost, and experimental results showing the algorithms significantly reduce data transmission with small constant communication rounds, with the adaptive algorithm performing near-optimally under various conditions.
Civil 2013 titles
This document contains 15 titles for civil engineering projects related to structural analysis. The titles cover topics like analyzing beams, trusses, bridges, dams, and other structures under different loads and conditions using methods like finite element analysis. The analyses will determine factors like deflection, stresses, and dynamic response for various civil and building components.
Chopper based dc motor speed control
This document discusses using a chopper circuit to control the speed of a DC motor. A chopper circuit uses MOSFETs to vary the voltage applied to the motor, allowing for remote speed control. This method is more efficient and compact than previous variable resistor and transformer-based controls. Pressing buttons on the chopper circuit varies the MOSFET firing angle, decreasing motor speed as the firing angle increases. The chopper control reduces motor current, losses, temperature, noise, and increases lifetime compared to DC operation.
Channel assignment for throughput optimization in multichannel multiradio wir...
ECWAY Technologies provides IEEE projects and software developments with offices in multiple cities in Tamil Nadu, India. They can be contacted via phone or email.
The document discusses a channel assignment algorithm for throughput optimization in multi-radio wireless mesh networks using network coding. It formulates the joint problem of random network coding, channel assignment, and broadcast link scheduling while taking into account opportunistic overhearing, interference constraints, coding constraints, number of channels, radios per node, and fairness between unicast connections. An auction-based suboptimal solution is developed for overall network throughput optimization. Evaluation shows the algorithm can effectively use multiple radios and channels and handle fairness issues from auctions, with promising gains over traditional routing solutions
Channel allocation and routing in hybrid multichannel multiradio wireless mes...
The document discusses channel allocation and routing in hybrid multichannel multiradio wireless mesh networks. It proposes an Adaptive Dynamic Channel Allocation (ADCA) protocol that considers both throughput and delay optimization in channel assignment. It also proposes an Interference and Congestion Aware Routing (ICAR) protocol for hybrid networks with static and dynamic links that balances channel usage. Simulation results show that ADCA reduces packet delay significantly without degrading throughput, and the hybrid architecture adapts better to changing traffic than static-only architectures with lower overhead and delay than existing hybrid network approaches.
Casual stereoscopic photo authoring
Ecway Technologies provides IEEE projects, software developments, and casual stereoscopic photo authoring. It has offices in multiple cities across India. Ecway's casual stereoscopic photo authoring method takes two images or video frames from a regular monocular camera as input and transforms them into a stereoscopic image pair for 3D viewing. The method uses a perceptual-plausible image rectification algorithm that warps the input pairs to meet stereoscopic geometric constraints while avoiding visual distortion. It formulates the warping problem as a quadratic energy minimization solved using a sparse linear solver. The method also allows local and global disparity adjustments for adapting stereoscopic images to different viewing conditions. Experiments show Ecway's spatially-varying war
Casual stereoscopic photo authoring
Ecway Technologies provides software development and IEEE projects services from offices located in multiple cities across India. They can be contacted via phone or email on their website at www.ecwayprojects.com.
The paper presents a method for easy stereoscopic photo authoring using a regular monocular camera. It takes two input images or video frames and transforms them into a stereoscopic image pair for pleasant 3D viewing. This is done through a perceptual-plausible image rectification algorithm that warps the input pairs to meet stereoscopic geometric constraints while avoiding visual distortion. The warping uses spatially-varying mesh-based warps that encode various constraints to best meet the stereoscopic geometry and minimize distortion. Experiments show the
Capacity of hybrid wireless mesh networks with random a ps
This paper proposes a hybrid wireless mesh network (WMN) architecture that allows the backbone to utilize random connections to access points (APs) in a wireless local area network (WLAN). Theoretical analysis shows that the capacity of a three-tier hybrid WMN is affected by the number of mesh router cells connected to APs, the ratio of access link bandwidth to backbone link bandwidth, and traffic balance among routers with AP access. Simulation results demonstrate that configuring APs and balancing traffic can significantly improve network capacity in the proposed hybrid architecture by taking advantage of wired connections through APs.
Bomb detection robot with wireless camera
This prototype robot is designed to help bomb squads by remotely detecting bombs and obstacles. It uses sensors to detect metals and obstacles as it moves through an area, sending that information back to operators via a wireless camera and computer. The robot is controlled remotely using the camera feed while sensors transmit detection data to a base station, which displays the information and sounds an alarm if metals are found.
Bed side patients monitoring system with emergency alert
The document describes a bedside patient monitoring system that measures temperature data using a portable medical monitoring unit. The unit contains a microcontroller, sensor board, and processing system to manage information, analyze data in real-time, and provide warnings for emergencies or abnormal diagnoses. The system takes a patient's temperature, converts it to digital using an ADC, and sends it to the microcontroller for processing. If the temperature exceeds a threshold, the system sounds a buzzer for notification.
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Coloring based inter-wban scheduling for mobile wireless body area networks
Coloring based inter-wban scheduling for mobile wireless body area networks
Code modulation based encryption & decryption technique for secure communicat...
Code modulation based encryption & decryption technique for secure communicat...
Clustering sentence level text using a novel fuzzy relational clustering algo...
Clustering sentence level text using a novel fuzzy relational clustering algo...
Cloudsim t-drive enhancing driving directions with taxi drivers’ intelligence
Cloudsim t-drive enhancing driving directions with taxi drivers’ intelligence
Cloudsim ranking on data manifold with sink points
Cloudsim ranking on data manifold with sink points
Cloudsim quality-differentiated video multicast in multirate wireless networks
Cloudsim quality-differentiated video multicast in multirate wireless networks
Cloudsim power allocation for statistical qo s provisioning in opportunistic...
Cloudsim power allocation for statistical qo s provisioning in opportunistic...
Cloudsim distributed web systems performance forecasting using turning bands...
Cloudsim distributed web systems performance forecasting using turning bands...
Cloudsim distributed processing of probabilistic top-k queries in wireless s...
Cloudsim distributed processing of probabilistic top-k queries in wireless s...
Channel assignment for throughput optimization in multichannel multiradio wir...
Channel assignment for throughput optimization in multichannel multiradio wir...
Channel allocation and routing in hybrid multichannel multiradio wireless mes...
Channel allocation and routing in hybrid multichannel multiradio wireless mes...
Capacity of hybrid wireless mesh networks with random a ps
Capacity of hybrid wireless mesh networks with random a ps
Bed side patients monitoring system with emergency alert
Bed side patients monitoring system with emergency alert
Electric equivalent model for induction electrode less fluorescent lamps
- 1. ELECTRIC EQUIVALENT MODEL FOR INDUCTION ELECTRODELESS FLUORESCENT LAMPS ABSTRACT: This paper presents an electric equivalent model applied to induction electrodeless fluorescent lamps. The model is based on passive components and takes into account the real and reactive lamp power. The presented model and its obtention methodology will be an important tool for ballast designers. One of the most important features of the proposed methodology is the concern regarding core losses and lamp reactive characteristics, because nowadays there are no electric models including these characteristics. In order to obtain and validate the electrodeless lamp model, a series-parallel resonant half-bridge inverter is used as ballast. Plasma and lamp windings are modeled as resistances and reactances depending on the lamp power. Simulations employing the proposed model are also presented, showing an excellent agreement with experimental results.