Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- 1D-electrochemical model (1)
- Active power curtailment (1)
- Adaptive dynamic programming (1)
- Battery modeling (1)
- Biorefining (1)
-
- CAN busenergy management system (1)
- Capacity fade (1)
- Cellulose (1)
- Cellulosic ethanol (1)
- Charge-discharge behavior (1)
- Coulumb's counting (1)
- Distributed generation (1)
- Electrochemical Anodization (1)
- Etching (1)
- Hardware (1)
- Integrated (1)
- Kinetic Monte Carlo (1)
- Lignocellulose (1)
- Lithium ion (Li-ion) (1)
- Lithium ion battery (1)
- Low voltage distribution network (1)
- Microgrids (1)
- Nanocrystalline cellulose (1)
- OPAL RT (1)
- Perovskite (1)
- Photocharging (1)
- Photovoltaics (1)
- Porosity (1)
- Porous Silicon (1)
- Porous current collector (1)
Articles 1 - 10 of 10
Full-Text Articles in Engineering
Modeling Of The Solid-Electrolyte Interface Layer Of Lithium Ion Batteries For Capacity Fade Using Kinetic Monte Carlo, Bigyan Khanal
Modeling Of The Solid-Electrolyte Interface Layer Of Lithium Ion Batteries For Capacity Fade Using Kinetic Monte Carlo, Bigyan Khanal
Electronic Theses and Dissertations
The accurate model on the growth of Solid-Electrolyte Interface (SEI) layer of Lithiumion batteries is used to study the capacity fade, ageing, and cycling life and provides significant information to ensure the battery safety. In this work, the model for SEI layer dynamics is developed using the Kinetic Monte Carlo approach, in which four major dynamical processes including adsorption, absorption, diffusion, and passivation are described by their individual rates, and determined from chemical and physical properties of materials used in the battery. Total cycle numbers to be simulated determine the number of Kinetic Monte Carlo steps. The formation of a …
Voltage Regulation Of Low Voltage Distribution Networks, Manisha Maharjan
Voltage Regulation Of Low Voltage Distribution Networks, Manisha Maharjan
Electronic Theses and Dissertations
The modern voltage distribution systems consist of distributed generation (DG), like photovoltaics (PV) and wind. These resources are inexhaustible and environmentally friendly. The existing low voltage (LV) distribution networks are typically designed for unidirectional power flow. The integration of DG makes the LV distribution networks prone to difficulties related to voltage, frequency, and power quality. The main challenges in the integration of DG occur due to the intermittent nature of DG. The amount of DG compared with the total generation resource on a power system network is measured as penetration. The system undergoes through reverse power flow when there is …
Mathematical Modeling And Capacity Fading Study In Porous Current Collector Based Lithium Ion Battery, Surendra Bajagain
Mathematical Modeling And Capacity Fading Study In Porous Current Collector Based Lithium Ion Battery, Surendra Bajagain
Electronic Theses and Dissertations
Lithium ion (Li-ion) batteries are primary energy storage devices especially in electronic gadgets, electric vehicles and for stationary storage of intermittent renewable energy. These applications demand durable Li-ion batteries with higher energy density. Energy density can be increased either by finding novel electrode materials or by modifying the existing design of the battery. The electrode materials or modified design should not only increase energy density, but also should control the capacity fading of the battery. In this work, existing mathematical model of Li-ion battery was adjusted in the case of the porous current collector. The discharge performance and capacity fading …
Engineering Of Photo-Rechargeable Energy Storage, Ashim Gurung
Engineering Of Photo-Rechargeable Energy Storage, Ashim Gurung
Electronic Theses and Dissertations
Solar photovoltaics (PV) is a very promising renewable energy technologies as it is abundant and pollution-free. However, the major drawback of PV power is its intermittency. Integration of batteries with solar modules can reduce overall PV system costs and increase the practicality of PV power. Integration of the photovoltaic cells with supercapacitor storage proved feasibility of combined photovoltaic energy generation and storage but the supercapacitors had low energy storage capacity. Photovoltaic cells with integrated Li-ion batteries as energy storage were demonstrated but had a complex structure due to multiple PV cells; low efficiency due to a mismatch between the PV …
Control Of Pore Characteristics Of Porous Silicon Using Non-Toxic Electrochemical Etching For Photovoltaics And Supercapacitor Applications, Utpal Saha
Electronic Theses and Dissertations
Porous silicon has exhibited lower reflectance and higher surface area than the pristine silicon. This property of porous silicon can be applied to photovoltaic (PV) application for more efficient silicon solar cells and for higher performance of supercapacitors. NH4Fl electrolytic etching solution has been used to fabricate porous silicon, but the control of pore morphology of silicon is achieved only by controlling the time. Therefore, it is urgently required to use other etching parameters such as voltage and current to achieve flexible control of pore properties. Porous silicon can also be used to fabricate supercapacitors. An established approach to make …
Pretreatment, Enzymatic Hydrolysis, And Fermentation To Ethanol Using A Lignocellulosic Feedstock And Subsequent Recovery Of A Value Added Co-Product: Pure Crystalline Cellulose, Ryan J. Bouza
Electronic Theses and Dissertations
As more demand for alternatives to petroleum and the industrial world’s love of cars increase, cellulosic ethanol will become more important. The ethanol can, of course, be used in the transportation fuel sector, but there is also a potential for co-products to be developed out of the cellulose to ethanol process. Some of these co-products have the potential to replace current petrol products. These co-products may provide the extra revenue generation needed for further investment and development of this industry. This would not only provide better energy independence, but in the United States, it would better satisfy the cellulosic ethanol …
Cathode Interface Engineering For High Performance Planar Perovskite Solar Cells, Md Nazmul Hasan
Cathode Interface Engineering For High Performance Planar Perovskite Solar Cells, Md Nazmul Hasan
Electronic Theses and Dissertations
Organic-inorganic hybrid perovskite solar cells (PSCs) have already improved their power conversion efficiency (PCE) from 3.9% to ~22.1% at present. This demonstrated that PSCs can be a promising alternative to conventional silicon solar cells. PSCs have been marked as one of the most favorable next-generation solar cells due to their high extinction coefficient, broad light absorption range and ambipolar charge transport properties, low production cost, and simple fabrication processing. Various device architectures have been designed and investigated for constructing high performance PSCs consisting of different electron transport layers (ETL) and hole transport layers (HTL). In general, PSCs are fabricated in …
Efficient Energy Optimization For Smart Grid And Smart Community, Avijit Das
Efficient Energy Optimization For Smart Grid And Smart Community, Avijit Das
Electronic Theses and Dissertations
The electric power industry has undergone significant changes in response to the environmental concerns during the past decades. Nowadays, due to the integration of different distributed energy systems in the smart grid, the balancing between power generation and load demand becomes a critical problem. Specifically, due to the intermittent nature of renewable energy sources (RESs) , power system optimization becomes significantly complicated. Due to the uncertain nature of RESs, the system may fail to ensure the power quality which may cause increased operating costs for committing costly reserve units or penalty costs for curtailing load demands. This dissertation presents three …
Energy Management System Considering Battery Lifetime, Prajina Tandukar
Energy Management System Considering Battery Lifetime, Prajina Tandukar
Electronic Theses and Dissertations
The contribution of renewable energy resources in the global energy generation has been increasing at a fast pace. Variability and uncertainty are the two main issues related to renewable energy integration. Thus, energy storage systems (ESSs) are used in such systems to smooth the power generated by the renewable energy sources. In order to ensure reliable and economic operation of the system, energy management system (EMS) is implemented to control the dispatch of the available resources. ESS such as a battery requires significant capital investment and frequent replacement. A battery has a maximum lifetime called float life, regardless of energy …
Development Of Microgrid Test Bed For Testing Energy Management System, Shaili Nepal
Development Of Microgrid Test Bed For Testing Energy Management System, Shaili Nepal
Electronic Theses and Dissertations
Today the world population has reached 7.5 billion, and this number is expected to grow at the rate of 1.13% every year [1]. With this increase in population, the total demand for electricity has also increased. More people means the need for more power: electricity to power homes, schools, industries, hospitals, and so on. In today’s world, where most of the daily activities are dependent on electricity, demand for electricity, therefore, continues to rise. Currently, managing this growing need for electricity is one of the challenges the world is facing. In addition to this, approximately 1.2 billion people live in …