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Improving Pv Module Efficiency Through Cooling, Megan Reynolds 2020 University of Arkansas, Fayetteville

Improving Pv Module Efficiency Through Cooling, Megan Reynolds

Chemical Engineering Undergraduate Honors Theses

The Solarbacks researched and designed a variety of cooling methods that could be used to improve the efficiency of photovoltaics. These cooling methods can be separated into two categories: active and passive methods. The active cooling method of hydraulic cooling and the passive cooling methods of heat sinks (fins), optical coatings, thermosyphons, phase change materials, and thermoelectric generators were all taken into consideration as potential cooling methods. Passive cooling methods were preferred because the use of electricity required for the cooling mechanism would reduce the net electricity and subsequent profit from the panels.

Two variations of hydraulic cooling were researched ...


Improving Pv Module Efficiency Through Cooling, Blake Bradley 2020 University of Arkansas, Fayetteville

Improving Pv Module Efficiency Through Cooling, Blake Bradley

Chemical Engineering Undergraduate Honors Theses

The Solarbacks researched and designed a variety of cooling methods that could be used to improve the efficiency of photovoltaics. These cooling methods can be separated into two categories: active and passive methods. The active cooling method of hydraulic cooling and the passive cooling methods of heat sinks (fins), optical coatings, thermosyphons, phase change materials, and thermoelectric generators were all taken into consideration as potential cooling methods. Passive cooling methods were preferred because the use of electricity required for the cooling mechanism would reduce the net electricity and subsequent profit from the panels.

Two variations of hydraulic cooling were researched ...


Improving Pv Module Efficiency Through Cooling, Ashley Cox 2020 University of Arkansas, Fayetteville

Improving Pv Module Efficiency Through Cooling, Ashley Cox

Chemical Engineering Undergraduate Honors Theses

The Solarbacks researched and designed a variety of cooling methods that could be used to improve the efficiency of photovoltaics. These cooling methods can be separated into two categories: active and passive methods. The active cooling method of hydraulic cooling and the passive cooling methods of heat sinks (fins), optical coatings, thermosyphons, phase change materials, and thermoelectric generators were all taken into consideration as potential cooling methods. Passive cooling methods were preferred because the use of electricity required for the cooling mechanism would reduce the net electricity and subsequent profit from the panels.

Two variations of hydraulic cooling were researched ...


Improving Pv Module Efficiency Through Cooling, Harrison Dawson 2020 University of Arkansas, Fayetteville

Improving Pv Module Efficiency Through Cooling, Harrison Dawson

Chemical Engineering Undergraduate Honors Theses

The Solarbacks researched and designed a variety of cooling methods that could be used to improve the efficiency of photovoltaics. These cooling methods can be separated into two categories: active and passive methods. The active cooling method of hydraulic cooling and the passive cooling methods of heat sinks (fins), optical coatings, thermosyphons, phase change materials, and thermoelectric generators were all taken into consideration as potential cooling methods. Passive cooling methods were preferred because the use of electricity required for the cooling mechanism would reduce the net electricity and subsequent profit from the panels.

Two variations of hydraulic cooling were researched ...


On-Site And External Energy Harvesting In Underground Wireless, Usman Raza, Abdul Salam 2020 Purdue University

On-Site And External Energy Harvesting In Underground Wireless, Usman Raza, Abdul Salam

Faculty Publications

Energy efficiency is vital for uninterrupted long-term operation of wireless underground communication nodes in the field of decision agriculture. In this paper, energy harvesting and wireless power transfer techniques are discussed with applications in underground wireless communications (UWC). Various external wireless power transfer techniques are explored. Moreover, key energy harvesting technologies are presented that utilize available energy sources in the field such as vibration, solar, and wind. In this regard, the Electromagnetic(EM)- and Magnetic Induction(MI)-based approaches are explained. Furthermore, the vibration-based energy harvesting models are reviewed as well. These energy harvesting approaches lead to design of an ...


Net Energy Index: A New Way To Measure Energy Efficient Buildings, Dylan Suplee 2020 Liberty University

Net Energy Index: A New Way To Measure Energy Efficient Buildings, Dylan Suplee

Senior Honors Theses

Energy efficiency indexes are useful for providing tangible measurements of energy efficiency in buildings. Buildings use approximately 70% of all electricity in the USA. Using that energy efficiently has two primary benefits: limiting greenhouse gas emissions and reducing grid strain. Utilizing local renewable energy sources contributes to the same benefits. Currently, there is no index that considers renewable energy sources when measuring energy efficiency. Therefore, this paper proposes the Net Energy Index, which compares the net power usage of a building to the floor area of the building in order to determine energy efficiency. If renewable energy supplies power to ...


Solar Energy Development And Social Sustainability: A Case Study On The Teknaf Solar Power Plant In Bangladesh, Zafrin Ahmed Liza, Hajera Aktar, Mohammad Rakibul Islam 2020 Shahjalal University of Science and Technology

Solar Energy Development And Social Sustainability: A Case Study On The Teknaf Solar Power Plant In Bangladesh, Zafrin Ahmed Liza, Hajera Aktar, Mohammad Rakibul Islam

Journal of Asian Energy Studies

Due to Bangladesh’s rapid development and fast-growing economy, the Government has placed an emphasis on ensuring a reliable and quality supply of electricity, to permit sustainable and financial development. The state’s policy on private sector involvement and the release of marginal lands for energy plantations is intended to enhance access to energy, through diversifying the energy supply. The country’s first solar park, with a capacity of 28 megawatts (MW), was established on 116 acres of land in Knila, Teknaf of Cox’s Bazar. This facility started producing electricity in September 2018, which is currently being added to ...


Neca Ghana Project, Michael T. Klee 2020 California Polytechnic State University, San Luis Obispo

Neca Ghana Project, Michael T. Klee

Construction Management

Cal Poly’s motto is, “Learn by Doing" and for Cal Poly’s NECA Chapter, this isn’t simply a motto, but a directive for proactive change. For my senior project I will be leading the Cal Poly NECA chapter in the design, pre- fabrication and construction of a 5-7kw solar array, community center, ice production room and technology room in the remote fishing village of Agbokpa, Ghana. The solar array will power multiple industrial DC freezers, high efficiency LED lighting and charging stations while additionally powering water filtration and irrigation systems. Like many other fishing villages around the world ...


Design Of Attack-Resilient System For Wide-Area Monitoring, Protection, And Control In Smart Grid, Vivek Kumar Singh, Manimaran Govindarasu 2020 Iowa State University

Design Of Attack-Resilient System For Wide-Area Monitoring, Protection, And Control In Smart Grid, Vivek Kumar Singh, Manimaran Govindarasu

Electrical and Computer Engineering Publications

Can you imagine that a simple cyber-attack can turn your lights off? Do you know more than a dozen U.S. utilities have been constantly targeted through cyber-attacks within the past year? The solution - an attack-resilient grid infrastructure that can quickly detect stealthy cyber-attacks and provide an intelligent incident response to restore the normal grid condition.


Synchrophasor Based Islanding & Open Phase Fault Protection In Distribution Systems, Mansour Jalali 2020 The University of Western Ontario

Synchrophasor Based Islanding & Open Phase Fault Protection In Distribution Systems, Mansour Jalali

Electronic Thesis and Dissertation Repository

With the rapid growth of renewable energy resources, energy efficiency initiatives, electric vehicles, energy storage, etc., distribution systems are becoming more complex such that conventional protection, control, and measurement infrastructure – typically concentrated at the main substation, with little to no access to information along the feeder – cannot maintain the reliability of the system without some sort of additional protection, control and measurement functionalities. As an example, a dedicated communication channel for carrying the transfer trip signal from the substation to the Point of Common Coupling (PCC) to prevent islanding operation of alternative resources, has been a requirement for many utilities ...


A Markovian Influence Graph Formed From Utility Line Outage Data To Mitigate Large Cascades, Kai Zhou, Ian Dobson, Zhaoyu Wang, Alexander Roitershtein, Arka P. Ghosh 2020 Iowa State University

A Markovian Influence Graph Formed From Utility Line Outage Data To Mitigate Large Cascades, Kai Zhou, Ian Dobson, Zhaoyu Wang, Alexander Roitershtein, Arka P. Ghosh

Electrical and Computer Engineering Publications

We use observed transmission line outage data to make a Markovian influence graph that describes the probabilities of transitions between generations of cascading line outages. Each generation of a cascade consists of a single line outage or multiple line outages. The new influence graph defines a Markov chain and generalizes previous influence graphs by including multiple line outages as Markov chain states. The generalized influence graph can reproduce the distribution of cascade size in the utility data. In particular, it can estimate the probabilities of small, medium and large cascades. The influence graph has the key advantage of allowing the ...


Residential Thermal Storage And Cooling, Joao Marcelo Rocha Belmonte, Jacob Anderson, Andrew Clarke, Daphne Forester, Bianca Hardtke, Josh Hartman, Marc D. Compere 2020 Embry-Riddle Aeronautical University

Residential Thermal Storage And Cooling, Joao Marcelo Rocha Belmonte, Jacob Anderson, Andrew Clarke, Daphne Forester, Bianca Hardtke, Josh Hartman, Marc D. Compere

Sustainability Conference

No abstract provided.


Electricity Without Fuel, Nikolai A. Zarkevich 2020 Ames Laboratory

Electricity Without Fuel, Nikolai A. Zarkevich

Ames Laboratory Accepted Manuscripts

Most power plants produce electricity by converting a mechanical motion into alternating current (AC). Photovoltaic solar panels convert an electromagnetic flux of light into direct current (DC). In general, electric energy can be harvested from a flux in the environment or from a change of the environment itself. One can produce electricity from mechanical, chemical, thermal, electromagnetic (light), or another physical flux, or from a change of temperature, chemical composition, or a physical field: gravitational, magnetic, electric, mechanical stress and strain, etc. Flux examples are mechanical motions of air and water, surface waves and tides, heat fluxes due to a ...


Wind Power Forecasting Methods Based On Deep Learning: A Survey, Xing Deng, Haijian Shao, Chunlong Hu, Dengbiao Jiang, Yingtao Jiang 2020 Jiangsu University of Science and Technology

Wind Power Forecasting Methods Based On Deep Learning: A Survey, Xing Deng, Haijian Shao, Chunlong Hu, Dengbiao Jiang, Yingtao Jiang

Electrical and Computer Engineering Faculty Publications

Accurate wind power forecasting in wind farm can effectively reduce the enormous impact on grid operation safety when high permeability intermittent power supply is connected to the power grid. Aiming to provide reference strategies for relevant researchers as well as practical applications, this paper attempts to provide the literature investigation and methods analysis of deep learning, enforcement learning and transfer learning in wind speed and wind power forecasting modeling. Usually, wind speed and wind power forecasting around a wind farm requires the calculation of the next moment of the definite state, which is usually achieved based on the state of ...


Advances In Atomic Layer Deposition (Ald) Nanolaminate Synthesis Of Thermoelectric Films In Porous Templates For Improved Seebeck Coefficient, Xin Chen, Helmut Baumgart 2020 Old Dominion University

Advances In Atomic Layer Deposition (Ald) Nanolaminate Synthesis Of Thermoelectric Films In Porous Templates For Improved Seebeck Coefficient, Xin Chen, Helmut Baumgart

Electrical & Computer Engineering Faculty Publications

Thermoelectrics is a green renewable energy technology which can significantly contribute to power generation due to its potential in generating electricity out of waste heat. The main challenge for the development of thermoelectrics is its low conversion efficiency. One key strategy to improve conversion efficiency is reducing the thermal conductivity of thermoelectric materials. In this paper, the state-of-the-art progresses made in improving thermoelectric materials are reviewed and discussed, focusing on phononic engineering via applying porous templates and ALD deposited nanolaminates structure. The effect of nanolaminates structure and porous templates on Seebeck coefficient, electrical conductivity and thermal conductivity, and hence in ...


Hardware-In-The-Loop Cps Security Architecture For Der Monitoring And Control Applications, Ravikumar Gelli, Burhan Hyder, Manimaran Govindarasu 2020 Iowa State University

Hardware-In-The-Loop Cps Security Architecture For Der Monitoring And Control Applications, Ravikumar Gelli, Burhan Hyder, Manimaran Govindarasu

Electrical and Computer Engineering Conference Papers, Posters and Presentations

Deeper penetration of interoperable cyber-physical distributed energy resources (DER) and their utility-wide remote monitoring and control drastically increases cybersecurity attack surface. Utilities require to adopt the DER interconnection and communication standards to a range of autonomous, advanced and curve-based grid-support functions to securely monitor and control DER devices for ensuring power quality, voltage, and system frequency. In this paper, we present DER monitoring and control (DERMC) cyber-physical system (CPS) architecture including standard communication protocols such as IEEE 2030.5 [1] and discuss various stealthy cyber attack vectors that affect communications and operations of DER. We propose a hardware-in-the-loop (HIL) CPS ...


Economic Efficiency And Carbon Emissions In Mes With Flexible Buildings, Zach Lawrence Hurwitz 2020 University of Vermont

Economic Efficiency And Carbon Emissions In Mes With Flexible Buildings, Zach Lawrence Hurwitz

Graduate College Dissertations and Theses

Multi-energy systems offer an opportunity to leverage energy conversion processes and temporary energy storage mechanisms to reduce costs and emissions during operation of campuses, cities, and buildings. With increasing options for flexibility in demand-side resources it is possible to meet demand without sacrificing comfort and convenience of MES occupants.

This Thesis develops a multi-period, linear optimization model of an MES with flexible buildings that captures nonlinearities in the efficiency of energy conversion processes. The flexible buildings are parametrized, in part, based on historical data from a college campus in Vermont, USA. The idea of the MES model is to investigate ...


Vehicle Operator Attention Monitor, Matthew Krispinsky, Matt Marsek, Matthew Mayfield, Brian Call 2020 The University of Akron

Vehicle Operator Attention Monitor, Matthew Krispinsky, Matt Marsek, Matthew Mayfield, Brian Call

Williams Honors College, Honors Research Projects

Motor vehicle operators’ attention levels can be monitored to improve driver safety. By recording and analyzing the drivers eye gaze, hand position, vehicle speed and engine rpm the driver’s attention can be determined. A Raspberry Pi will be the main processing unit. Data will be pulled and analyzed from the OBD-II port on vehicle speed and engine rpm. The system will be powered from a 12V, 4A pin on the OBD-II port connected to the car battery. A webcam will be used to track the pupil location and determine when the driver is looking at the road. A battery ...


Expanded Predictive Equation For Dc Arc-Flash Incident Energy In 125v Battery Systems, Austin Gaunce 2020 University of Kentucky

Expanded Predictive Equation For Dc Arc-Flash Incident Energy In 125v Battery Systems, Austin Gaunce

Theses and Dissertations--Electrical and Computer Engineering

Arc-flash is a dangerous phenomenon that can occur during an arcing fault in an electrical system. People nearby may be subjected to extreme heat, light, pressure, and sound. Research regarding arc-flash has focused primarily on AC arc-flash due to the prevalence of AC electricity in the grid. However, the grid has begun to integrate more DC electrical sources as a result of decentralization efforts and environmental concerns. The increased proliferation of DC electrical sources demands research into DC arc-flash to assess the hazard as low-voltage DC sources have already become commonplace. Some DC arc-flash models have been produced to estimate ...


Fault Identification On Electrical Transmission Lines Using Artificial Neural Networks, Christopher W. Asbery 2020 University of Kentucky

Fault Identification On Electrical Transmission Lines Using Artificial Neural Networks, Christopher W. Asbery

Theses and Dissertations--Electrical and Computer Engineering

Transmission lines are designed to transport large amounts of electrical power from the point of generation to the point of consumption. Since transmission lines are built to span over long distances, they are frequently exposed to many different situations that can cause abnormal conditions known as electrical faults. Electrical faults, when isolated, can cripple the transmission system as power flows are directed around these faults therefore leading to other numerous potential issues such as thermal and voltage violations, customer interruptions, or cascading events. When faults occur, protection systems installed near the faulted transmission lines will isolate these faults from the ...


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