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This paper represents the behavior of a physics based p-i-n perovskite solar cell by varying different parameters. Perovskite solar cells have gained more popularity in the recent few years due to different organic and inorganic materials. In this paper, a physics based theoretical model for perovskite solar cell is used for our simulation work. A p-i-n perovskite solar cell is considered for the...
This paper represents a conceptual design of a flight data acquisition system for small scale unmanned aerial vehicles. The system consists of three components-the unmanned aircraft, data acquisition hardware and display. The acquired data from various sensors of the acquisition system are stored in on board storage device and the data is essential for achieving situational awareness of the control...
This paper represents theoretical efficiency and cell parameters of AlAs/GaAs/Ge based mew multijunction solar cell. A very new and unique model of multijunction solar is introduced in this paper. Using the modified version of spectral p-n junction solar cell model, the calculations of the solar cell parameters are done. All the calculations done for this work are completed by using MATLAB simulation...
This paper represents a comparison of theoretical efficiencies of three and four layer multijunction solar cell and the effects of varying the bottom layer material. Different types of solar cell models are mentioned here. The equations used for the calculations along with the material parameters are given. Total five materials of compound semiconductor with direct and indirect band gap are considered...
Body Area Networks (BAN) is a special purpose Wireless Sensor Network (WSN) which is designed for patient monitoring. BAN requires to transmit the monitored data to the medical personals as quick as possible in real time. It is possible to make it web based. The integration of the BAN and cloud computing allows the sensors to transmit their data in a short time and show it in the web application....
This paper presents a neuro-fuzzy controller based flood monitoring system using wireless sensor network. The distributed sensor nodes use IEEE 802.15.4 protocol, also called low rate wireless personal area network, to collect the sensor information such as water level data from the river, rainfall, wind speed and air pressure data from a selected site. In order to validate the proposed flood monitoring...
This paper represents the necessity, challenges and development opportunities of smart grid technology in perspective of Bangladesh. In Bangladesh, power has been one of the major concerns from a long time. Smart grid technology is the modern concept of the grid system that has self-detection and management process. In the current power system, there has been a lot of mismanagements, lot of hazardous...
This paper represents Theoretical Efficiency of AlAs/GaAs/GaAs0.9Bi0.085 based new multijunction solar cell and effects of solar radiation and sun concentration on it. A new solar cell configuration has been introduced in this paper with an efficiency of 48% for Air Mass 1.5G condition and for Air Mass 1.5D the efficiency becomes 52%. The calculation for the proposed solar cell configuration has been...
This paper presents a study on low cost solar powered wheelchair for disabled people of Bangladesh. The main components are: the wheelchair structure, the solar panels, the DC motors, the controlling circuits, microcontroller and joystick. The proposed model is very useful for the physically challenged people of the rural areas. This proposed model is affordable to the low income people of countries...
This paper represents the effect of different solar radiance on the efficiency of GaInP2/GaAs/Ge based multi junction solar cell. Solar radiation is different for different air mass. The value of irradiance changes with the different wavelength and different air mass. With the change in the irradiance data, the theoretical efficiency of the multi junction solar cell changes. The whole calculation...
This paper represents the performance evaluation of a microcontroller based solar-powered auto-rickshaw which can be used extensively in Bangladesh for transportation. The battery operated traditional auto-rickshaw is charged by national grid whereas the battery bank of the proposed microcontroller based solar-powered auto-rickshaw is charged by solar power. A PIC microcontroller is programmed to...
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