检索结果-内蒙古大学图书馆

2012 IEEE energytech, energytech 2012

作者： Bukowski, S. Ranade, S.J. Klipsch School of Electrical and Computer Engineering New Mexico State University Las Cruces NM United States Sandia National Labs. Energy Systems Analysis Group United States Electrical Utility Management Program United States

ISBN: (纸本)9781467318365

This paper looks at the significance of bi-directional communication in the Smart Grid and the customer driven microgrid, a basic building block of the smart grid. It presents a classification model of communication requirements from the top down and bottom up perspective. Ultimately this paper presents future areas of work for microgrid operation that can be facilitated by a protocol specifically developed for energy systems and leverage upon IP, the network layer protocol that will provide the broad level of interoperability in the Smart Grid. © 2012 IEEE.

关键词： Data Link Layer

来源：评论

学校读者我要写书评

暂无评论

Estimating the effect of chirality and size on the mechanical properties of carbon nanotubes through finite element modelling 12

Estimating the effect of chirality and size on the mechanica...

引用

ASME 2014 12th Biennial Conference on engineering systems Design and Analysis, ESDA 2014

作者： Zuberi, Muhammad Jibran Shahzad Esat, Volkan Sustainable Environment and Energy Systems Middle East Technical University Northern Cyprus Campus Kalkanli Guzelyurt Mersin10 Turkey Mechanical Engineering Program Middle East Technical University Northern Cyprus Campus Kalkanli Guzelyurt Mersin10 Turkey

ISBN: (纸本)9780791845837

Carbon nanotubes (CNTs) are considered to be one of the contemporary materials exhibiting superior mechanical, thermal and electrical properties. A new generation state-of-theart composite material, carbon nanotube reinforced polymer (CNTRP), utilizes carbon nanotubes as the reinforcing fibre element. CNTRPs are highly promising composite materials possessing the potential to be used in various areas such as automotive, aerospace, defence, and energy sectors. The CNTRP composite owes its frontline mechanical material properties mainly to the improvement provided by the CNT filler. There are challenging issues regarding CNTRPs such as determination of material properties, and effect of chirality and size on the mechanical material properties of carbon nanotube fibres, which warrant development of computational models. Along with the difficulties associated with experimentation on CNTs, there is paucity in the literature on the effects of chirality and size on the mechanical properties of CNTs. Insight into the aforementioned issues may be brought through computational modelling time- and cost-effectively when compared to experimentation. This study aims to investigate the effect of chirality and size of single-walled carbon nanotubes (SWNTs) on its mechanical material properties so that their contribution to the mechanical properties of CNTRP composite may be understood more clearly. Nonlinear finite element models based on molecular mechanics using various element types substituting C-C bond are generated to develop zigzag, armchair and chiral SWNTs over a range of diameters. The predictions collected from simulations are compared to the experimental and computational studies available in the literature. Copyright © 2014 by ASME.

关键词： Finite element method

来源：评论

学校读者我要写书评

暂无评论

Near-term deployment of carbon capture and sequestration from biorefineries in the United States (vol 115, pg 4875, 2018)

引用

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 2018年第42期115卷 E9991-E9991页

作者： Sanchez, Daniel L. Johnson, Nils McCoy, Sean T. Turner, Peter A. Mach, Katharine J. Department of Global Ecology Carnegie Institution for Science Stanford CA 94305 Energy Program International Institute for Applied Systems Analysis A-2361 Laxenburg Austria Global Security E-Program Lawrence Livermore National Laboratory Livermore CA 94550 Department of Engineering and Public Policy Carnegie Mellon University Pittsburgh PA 15253 Department of Global Ecology Carnegie Institution for Science Stanford CA 94305 Department of Earth System Science Stanford University Stanford CA 94305

Capture and permanent geologic sequestration of biogenic CO2 emissions may provide critical flexibility in ambitious climate change mitigation. However, most bioenergy with carbon capture and sequestration (BECCS) tec... 详细信息

Capture and permanent geologic sequestration of biogenic CO₂ emissions may provide critical flexibility in ambitious climate change mitigation. However, most bioenergy with carbon capture and sequestration (BECCS) technologies are technically immature or commercially unavailable. Here, we evaluate low-cost, commercially ready CO₂ capture opportunities for existing ethanol biorefineries in the United States. The analysis combines process engineering, spatial optimization, and lifecycle assessment to consider the technical, economic, and institutional feasibility of near-term carbon capture and sequestration (CCS). Our modeling framework evaluates least cost source-sink relationships and aggregation opportunities for pipeline transport, which can cost-effectively transport small CO₂ volumes to suitable sequestration sites; 216 existing US biorefineries emit 45 Mt CO₂ annually from fermentation, of which 60% could be captured and compressed for pipeline transport for under $25/tCO₂. A sequestration credit, analogous to existing CCS tax credits, of $60/tCO₂ could incent 30 Mt of sequestration and 6,900 km of pipeline infrastructure across the United States. Similarly, a carbon abatement credit, analogous to existing tradeable CO₂ credits, of $90/tCO₂ can incent 38 Mt of abatement. Aggregation of CO₂ sources enables cost-effective long-distance pipeline transport to distant sequestration sites. Financial incentives under the low-carbon fuel standard in California and recent revisions to existing federal tax credits suggest a substantial near-term opportunity to permanently sequester biogenic CO₂. This financial opportunity could catalyze the growth of carbon capture, transport, and sequestration; improve the lifecycle impacts of conventional biofuels; support development of carbon-negative fuels; and help fulfill the mandates of low-carbon fuel policies across th

关键词： carbon dioxide removal bioenergy climate policy carbon capture energy systems

来源：评论

学校读者我要写书评

暂无评论

A prototype universal building envelope hygrothermal performance standard for successful net-zero energy building design 12

A prototype universal building envelope hygrothermal perform...

引用

11th International Conference on Thermal Performance of the Exterior Envelopes of Whole Buildings, Buildings XI

作者： Goldberg, Louise F. Huelman, Patrick H. Gatland, Stanley D. Energy Systems Design Program University of Minnesota Valley ForgePA United States Department of Bioproducts/Biosystems Engineering University of Minnesota Valley ForgePA United States Building Science Technology for the CertainTeed Corporation Valley ForgePA United States

A prototype universal building envelope hygrothermal performance standard that is intended to apply to all above-and belowgrade envelope components is described. The standard is expressed as a definition of a water separation plane followed by a set of three requirements. The requirements are applicable to the envelope components on the interior and exterior sides of the water separation plane and on the interior side only when the exterior side components are structurally and biotically inert. The standard is discussed using experimental data to illustrate salient features. Application examples for an above-grade wall system and a commercial roof system are presented and their hygrothermal performance evaluated in terms of the universal standard requirements. © 2010 ASHRAE.

关键词： Solar buildings

来源：评论

学校读者我要写书评

暂无评论

Effect of Skeletonization on energy Consumption of Water Distribution System

Effect of Skeletonization on Energy Consumption of Water Dis...

引用

World Environmental and Water Resources Congress 2023: Adaptive Planning and Design in an Age of Risk and Uncertainty

作者： Pasha, M. Fayzul K. Perez, Luis Weathers, Matthew Smith, Brennan Dept. of Civil and Geomatics Engineering California State Univ FresnoCA United States Water Power Program and Energy-Water Resource Systems Group Environmental Sciences Division Oak Ridge National Laboratory Oak RidgeTN United States

ISBN: (数字)9780784484852

ISBN: (纸本)9780784484852

A skeletonized water distribution system (WDS) model plays an important role in decision making process for its design and operations in planning phase. Given energy is the main driving force to operate a WDS efficiently and with the recent hikes in energy price, the investigation of energy flow in WDS is much more important than ever before. While a skeletonized network is easy to handle and takes less amount of time to run, it should represent the real-world scenario including the demand and hydraulics as accurately as possible. Failure to represent real-world scenario can mislead design and operational decisions including energy consumptions and delivery pressure. The purpose of this paper is to investigate how the energy flow in a WDS varies with the extent of the skeletonized network. Keeping the total demand constant for a network and the spatial distribution of the demand within a range in the skeletonized networks, how the energy consumption at the pump station, energy loss in the pipe, and the energy storage in the tank vary with the size of the skeletonized networks are investigated in this study. energy balance model has been set up for each skeletonized model to observe the impact on energy flow for a series of models. Since the number of pipes and nodes can impact hydraulics, which eventually impact the energy flow, the paper considers two types of networks: branch and loop water distribution systems. The study has been applied to two hypothetical literature networks. Due to skeletonization, the flow pattern in the loop system changes more than that in the branch system causing higher percentage change of frictional energy loss in the loop system. The energy consumption or loss per unit demand per node in the skeletonized networks is found almost linear for the branch system. However, this parameter changes non-linearly in the skeletonized networks for the loop system. © World Environmental and Water Resources Congress *** rights reserved

关键词： energy utilization

来源：评论

学校读者我要写书评

暂无评论

Study of Shared energy Storage Considering Battery Degradation on Remote Island

Study of Shared Energy Storage Considering Battery Degradati...

引用

Green energy, Computing and Sustainable Technology (GECOST), International Conference on

作者： Rishal Asri Hirohisa Aki Daisuke Kodaira Institute of Systems and Information Engineering University of Tsukuba Tsukuba Japan Energy System Engineering Study Program Institut Teknologi Sumatera Lampung Indonesia

Solar photovoltaic generation and energy storage are being used to power rural places. However, remote users are burdened by private energy storage devices. Remoteness limits the economic viability of cooperative energy storage. Our work proposes a shared energy storage model considering battery degradation. To test the model, we compared Individual, Neighbor, and Communal scenarios. The system was built as a mixed integer linear programming model to investigate optimal operating methods. Compared to the other situations, the Neighbor scenario saves operational expenses by 4.97%. Finally, the self-consumption rate shows optimal penetration of renewable energy parameters.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Techno-Economic Analysis of Utilization Offshore Platform in the Java Sea to Produce Hydrogen with Offshore Wind Turbine-Based energy Sources 7

Techno-Economic Analysis of Utilization Offshore Platform in...

引用

7th Astechnova International energy Conference, ASTECHNOVA 2023

作者： Franika, Resistentio Vembre Ridwan, Muhhamad Kholid Perdana, Abram Master Program in System Engineering Universitas Gadjah Mada Jalan Teknika Utara 3 Yogyakarta55281 Indonesia Department of Physics Engineering Universitas Gadjah Mada Jalan Grafika 2 Yogyakarta55284 Indonesia Renewable Energy Systems HertfordshireWD4 8LR United Kingdom

Indonesia's geographical condition, which consists of 70 percent ocean territory, holds the potential for utilizing offshore wind turbines to provide cleaner energy. In this study, economic calculations were conducted for offshore wind turbines to generate green electricity and green hydrogen. The chosen ocean area for this endeavor is around the Papa offshore platform in the Java Sea. This area has experienced an economic decline, making it viable for repurposing as a sub-station for a powerhouse and an electrolyzer plant. Based on meteorological data analysis results, the area around the Papa offshore platform exhibits an average at height of 119 m;the wind speed is 5.5 m/*** prevailing wind direction is East Southeast (ESE), with a frequency of 25.2%. Further analysis of wind farms aimed at generating a capacity of 100.8 MW revealed an optimal potential energy generation of approximately 141,656.9 MWh per year. For scenario 1 (electricity production), the cost is $0.192/kWh. The levelized cost of hydrogen (LCOH) for scenario 2 (offshore electrolyzer) and scenario 3 (onshore electrolyzer) is $9.44/kg and $10.1/kg, respectively. To assess investment feasibility, a Net Present Value (NPV) analysis was conducted. This analysis yielded a selling price of electricity at $0.0271/kWh for the first scenario. For the second scenario, the selling price of hydrogen was calculated at $17.11/kg, and for the third scenario, it was $16.99/kg. Considering its flexibility and potential response to restrictions, the third scenario was deemed the most suitable for offshore utilization to produce clean energy. © Published under licence by IOP Publishing Ltd.

关键词： Offshore wind turbines

来源：评论

学校读者我要写书评

暂无评论

Developing a Floating Robot for Mechanical Control of Water Hyacinth 3

Developing a Floating Robot for Mechanical Control of Water ...

引用

3rd International Mobile, Intelligent, and Ubiquitous Computing Conference, MIUCC 2023

作者： Elsayed, Mostafa E.A. Mohamed, Ahmed K.A. Shaaban, Mahmoud Abdelrahman, Mohamed A. Ahmed, Mohamed E. A. E. Rashed, Mostafa R. Benha University Automation and Energy Technology Lab. Shoubra Faculty of Engineering Mechanical Engineering Department Cairo Egypt Benha University Agricultural Power and Machinery Faculty of Agriculture Department of Agricultural Engineering Kalubia Egypt School of Engineering and Applied Sciences Nile University Smart Engineering Systems Center Mechanical Engineering Program Giza Egypt Benha University Combustion and Energy Technology Lab. Shoubra Faculty of Engineering Mechanical Engineering Department Cairo Egypt Benha University Shoubra Faculty of Engineering Mechanical Engineering Department Cairo Egypt University for Technology and Information Faculty of Engineering Modern Mechanical Engineering Department Cairo Egypt

ISBN: (纸本)9798350306231

Water hyacinth has become widespread in freshwater bodies in several countries, leading to various issues, particularly its substantial water consumption and the resulting need to control its growth. Among the different methods of controlling water hyacinth, mechanical control stands out as the most effective and environmentally friendly approach. A proposed harvester robot has been developed, capable of efficiently cutting and collecting water hyacinth from the water's surface. The robot boasts several advantages, including its ability to operate in narrow water paths and lakes, use clean energy sources to preserve the water ecology, employ a GPS module for safety and error detection, and generate maps for evaluating work and predicting annual growth. When compared to other technologies dealing with water hyacinth, this innovative water hyacinth harvesting robot presents a significantly lower cost of 0.01 /kg, making it an optimal solution for addressing water hyacinth problems. © 2023 IEEE.

关键词： Weed control

来源：评论

学校读者我要写书评

暂无评论

Physics-Informed Machine Learning for Electricity Markets: A NYISO Case Study

IEEE Transactions on Energy Markets, Policy and Regulation

引用

IEEE Transactions on energy Markets, Policy and Regulation 2024年第1期2卷 40-51页

作者： Ferrando, Robert Pagnier, Laurent Mieth, Robert Liang, Zhirui Dvorkin, Yury Bienstock, Daniel Chertkov, Michael University of Arizona Program in Applied Mathematics and Department of Mathematics TucsonAZ85721 United States Department of Industrial and Systems Engineering at Rutgers University PiscatawayNJ08854 United States Johns Hopkins University Department of Electrical and Computer Engineering BaltimoreMD21218-2625 United States Elec. and Comp. Eng. and Ralph o'Connor Sustainable Energy Institute Department of Civil and Systems Engineering Johns Hopkins University BaltimoreMD21218-2625 United States Columbia University IEOR New YorkNY10027 United States

This article addresses the challenge of efficiently recovering exact solutions to the optimal power flow problem in real-time electricity markets. The proposed solution, named Physics-Informed Market-Aware Active Set learning OPF (PIMA-AS-OPF), leverages physical constraints and market properties to ensure physical and economic feasibility of market-clearing outcomes. Specifically, PIMA-AS-OPF employs the active set learning technique and expands its capabilities to account for curtailment in load or renewable power generation, which is a common challenge in real-world power systems. The core of PIMA-AS-OPF is a fully-connected neural network that takes the net load and the system topology as input. The outputs of this neural network include active constraints such as saturated generators and transmission lines, as well as non-zero load shedding and wind curtailments. These outputs allow for reducing the original market-clearing optimization to a system of linear equations, which can be solved efficiently and yield both the dispatch decisions and the locational marginal prices (LMPs). The dispatch decisions and LMPs are then tested for their feasibility with respect to the requirements for efficient market-clearing results. The accuracy and scalability of the proposed method is tested on a realistic 1814-bus NYISO system with current and future renewable energy penetration levels. © 2023 IEEE.

关键词： Costs

来源：评论

学校读者我要写书评

暂无评论

Prediction of Daily Solar Irradiation Using CNN and LSTM Networks 14th

Prediction of Daily Solar Irradiation Using CNN and LSTM Net...

引用

14th International Conference on Applications of Fuzzy systems, Soft Computing, and Artificial Intelligence Tools, ICAFS 2020

作者： Vakitbilir, Nuray Hilal, Adnan Direkoğlu, Cem Sustainable Environment and Energy Systems Middle East Technical University Northern Cyprus Campus Mersin 1099738 Turkey Electric and Electronics Engineering Program Middle East Technical University Northern Cyprus Campus Kalkanlı Mersin 1099738 Turkey

ISBN: (纸本)9783030640576

Greenhouse gas emissions from conventional energy sources are accelerating the global warming. To alleviate this issue, countries are focusing on renewable energy sources, especially solar enery, to meet the increasing energy demand. Forecasting solar irradiation on different time-horizons is crucial for the integration of the solar energy to the existing or future electricity grids. In this paper, we focus on solar irradiation prediction, and present performances of two different methods for Kalkanlı region of Cyprus. We use a one-dimensional Convolutional Neural Network (1D-CNN) and a Long-Short Term Memory netwok (LSTM) separately for prediction. In particular, 1D-CNN and LSTM networks are employed with two different time-series input datasets to predict one-day ahead global horizontal irradiation (GHI) for Cyprus. Performances of the networks are evaluated and compared. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Long short-term memory

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：