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This paper deals with designing a biomass and solar based hybrid power plant for residential building. The main focus of this work is to propose a hybrid energy system consists of biomass and solar PV. The system will produce enough electricity to power up an entire building just by collecting MSW and solar energy. As a part of this work, various research were done regarding different processes and...
Renewable energy sources integrated with power electronic converters plays an important role in satisfying the energy demands in variable applications. Fuel cell being a promising technology to use as a source of electricity, the mathematical modeling of the fuel cell is studied and testing of power electronic converters are carried out in this paper. Matlab/Simulink models of the fuel cell integrated...
Dwindling nature of fossil fuels led many countries to search for new and alternative sources of energy. Solar energy is a clean, eco-friendly and abundantly available energy source. The useful forms of solar energy are either heat or electricity. The electricity demand is increasing every day. The conversion of solar energy to electricity through PV module is becoming popular but overprice of cells...
Bangladesh is an agriculture based country, where any edible and non-edible seeds can be grown. As a result biodiesel can be an effective solution to the increasing price and shortage of petroleum fuels. Every year Bangladesh imports about 5.5 million tons of different types of oil. Due to which Bangladesh has to pay a huge currency every year. Karanja, a sustainable source of biodiesel, can be cultivated...
This paper presents an evaluation of two modulation methods for the seven-level packed U cell (PUC) inverter for photovoltaic applications. The PUC is a multilevel inverter which has less number of switching devices than the conventional multilevel inverters. The PUC inverter is in modular configuration consisting of one U-cell and four additional power switches, one dc link and an auxiliary capacitor...
A few numbers of demands in the society are as great as non-conventional energy sources. On the other hand almost 2 billion people in this earth shortage of enough sanitation and economic means to yield it. Waste water treatment energy costs are also a pivotal issue. A modern method of renewable energy recovery is mapped by microbial fuel cell. It's like a bio reactor that converts the chemical energy...
In this study, generation of electricity from pretreated palm oil mill effluent (POME) using Klebsiella variicola was investigated. POME wastewater with a COD value 68,360 mg/l was subjected to pretreatment with ultrasonication and used as a substrate. MFCs (Microbial Fuel Cell), enriched with pretreated palm oil mill effluent (POME) were subjected to generate electricity by using inoculation of K...
The study focuses on off-grid appliance market in Bangladesh, which is expected to grow at a rapid pace in the upcoming years. Survey of upstream and downstream sales agents along with the off-grid appliance consumers have revealed many barriers for energy efficient appliances in the nascent market, including a gap in information and awareness on energy efficient products with a need for enabling...
Production of electricity from Bryophyllum pinnatum leaf is very cheap and the cells are easy to maintain and operate for any people as this leaf contains some organic acids. The main raw materials to produce electricity in this process are the zinc and copper plates and the juice of Bryophyllum pinnatum leaf. This plant can be grown anywhere. As there is plenty of free spaces in off-grid areas, the...
Aggregation of PV power plants can mitigate electricity demand as well as reduce consumption of fossil fuels. Due to high penetration of roof-top PV power into the Australian electricity market, utility planners and grid operators have to deal with short time variability of output power which can be a potential limiting factor in deploying PV systems. In this Paper, PV variability between different...
In this paper, an artificial neural network (ANN) model is used to predict the monthly solar energy potential in Bangladesh. Used data are taken from NASA database for the past 22 years average from 1983 to 2005 and eight divisional cities are considered in this study. A multi-layered feed forward ANN model of four layers with eight independent input variables i.e. average temperature, sunshine duration,...
Bidirectional business concept where both parties are seller and buyer at the same time is termed as chain business. No one dominates on other in a chain business, so everyone is benefited at the same time. In this paper, a biogas based chain business model is designed for a community of 500 families, where people sell various wastes (organic waste, cow dung and chicken manure) to biogas plant authority,...
In this work, a study of a silicon carbide power modules in power inverter is presented. Voltage/Current/power and switching energy loss characteristics based on experimental data are detailed. A comparative study of total power losses and efficiency of a silicon carbide based three phase inverter with silicon base is analyzed and studied. The efficiency of the silicon carbide based inverters based...
The core perspective of the work is to represent the design and economic feasibility analysis of an autonomous hybrid energy system for rural Bangladesh. To overcome the many of the environmental crises our country faces today result from our fossil fuel dependency. These impacts include global warming, air quality deterioration, oil spills, or acid rain. In view of this, the hybrid energy systems...
Droop based controller ensures the parallel operation of power plants in power system. Such controller is also required for Micro hydro power plants to work in interconnected micro hydro power plants. The approach with frequency droop to make a Mini-Grid model has been studied. Model of such frequency droop based controller has been successfully designed. Various real time cases were designed and...
Load Frequency Control (LFC) for any power generating station is a subject of great concern for power system researchers. With the changes of load demand, frequency starts fluctuating which results in deviation in tie line power flow and frequency deviation at consumer end. To overcome this problem, many control techniques have been adopted. In early days fixed value integral/proportional-integral...
Among the thin film solar cells, CZTSSe is the most promising one. In this article, the performance of CZTSSe solar cell with different potential buffer layers for different mole fractions of S of CZTSSe has been numerically investigated. It has been found that ZnSe buffer layer provides better performance in terms of efficiency than others within 0.7 mole fraction of S of CZTSSe. Above this value...
In Bangladesh, 55% of the population are getting electricity from the national grid. Mostly diesel generators supply the electricity to the off-grid regions. Use of diesel leads to increased greenhouse gas (GHG) emissions which is a big environmental concern all over the world. Solar Home Systems (SHSs) offer promising solution to the areas that are not connected to the grid. More than 3.6 million...
To meet the increased demand of flexible and technologically advanced lighting system, superior technologies are introduced in the automobile industry. Though initially candle was used for the lighting however lighting technology is now staying at a supreme level of advancement. In 1908 though electric bulb was started to use in the motor vehicle but specifically from 1920 electric bulb were started...
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