Projects
Data Analysis and Optimization of Power Loss in Household Electrical Appliances
The development of power sector and enhancement of power utility grids in Bangladesh has always been lethargic. Resources were also not adequate to meet the demand of a fast growing population. According to recent surveys, 48% of the people of Bangladesh have the facility of household electrical consumption. Interestingly the consumption varies according to the types of electrical appliances used and the income level of the families. Our main object is to analyze the power loss and the consumption of different household electrical appliances on the basis of income level in different regions of Dhaka city ranging from financially influential family to moderately mid income based families. Then creating different comparison charts of how the power consumption varies on the basis of different households and also providing future solutions of how to optimize it. In order to collect the data of the household power loss, we developed an energy monitoring Arduino based system using AC to AC power adapter to measure the energy consumption of household. Also detected the deviation from the rated power and try to find the power loss due to harmonics.​
RFID based Security and Home Automation System using FPGA
Security is the basic need of hour and home automation is useful for the ease of people. There are many security systems which are being used in industry, but these are too expensive and difficult to use. There is another issue in the industry due the sequential processing of microcontrollers, which delays the work and consume more energy. In this paper we are focusing on a security system to reduce security threats by using advanced equipment such as FPGA programmed by VHDL language. Field Programmable Gate Array (FPGA) based security system can be utilized as a door lock in hotels, banks and everywhere etc. When a Radio Frequency Identification Device (RFID) tag is scanned by an its reader, the door lock will open if the tag information is already stored in the database of FPGA otherwise alarm will ring. Moreover, after opening the door lock, light or fan will automatically be turned on according to the need of that specific user. This project is a combination of two features i.e.; security and automation. Both features are basic needs in market. Our project can be commercialized in hotels, restaurants, schools, colleges, universities and many other places.
Characterizing Piezoelectric Properties of PZT-4, PZT-5A, PZT-5J, PZT-7A and Lithium Tantalate Material-based Transducers
In this research, five different piezoelectric materials are used to harvest energy based on the piezoelectric phenomenon. To obtain maximum potential difference for various pressure applied on a constant surface area and layer thickness, some important simulations of piezoelectric materials have been done by using Comsol Multiphysics software. Based on the simulation results, established a mathematical relationship between potential difference, material characteristics and physical dimension. Through extensive research, obtained some important findings of the use of Piezoelectric Materials PZT-4, PZT-5A, PZT-5J, PZT-7A and Lithium Tantalate as the piezoelectric thin film. The purpose of this paper is to compare these materials through simulations with same amount of pressure applied on the fixed surface area and layer thickness to get maximum output voltage.
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