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Promising thermal photonic management materials for sustainable human habitat

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Nano Research 2024年第1期17卷 112-131页

作者： Houze Yao Qihua Liao Huhu Cheng Liangti Qu Key Laboratory of Organic Optoelectronics&Molecular Engineering Ministry of EducationDepartment of ChemistryLaboratory of Flexible Electronics TechnologyTsinghua UniversityBeijing 100084China State Key Laboratory of Tribology in Advanced Equipment(SKLT) Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China

The spectral characteristics of outdoor structures,such as automobiles,buildings,and clothing,determine their energy interaction with the environment,from broad-spectrum absorption of light energy to high-efficiency thermal emission.Recently developed spectrally selective absorption(SSA)materials permit the reduction of energy loss from human habitat eco-system in the sustainable way and further reduce the utilization of fossil energy to achieve carbon neutrality.Here we review recent advances in SSA materials that enable rational and efficient management of thermal energy and provide new solutions for the resource base that supports human life like comfortable heat management,electricity production,and water supply.The basic principles of thermal photonic management,the regulation of SSA materials,and functional properties are summarized.An outlook discussing challenges and opportunities in SSA material energy management for comfortable living environments is finally presented,which expects the enormous potential of this interdisciplinary research in solving growing resource-shortage of human society.

关键词： spectrally selective absorption passive cooling solar power eco-system

Multi-Layer and Multi-Objective Optimization Design of Supporting Structure of Large-Scale Spherical solar Concentrator for the Space solar power Station

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Journal of Renewable Materials 2022年第11期10卷 2835-2849页

作者： Yang Yang Jun Hu Lin Zhu Mengchen Pei School of Chemical Engineering Northwest UniversityXi’an710069China

Space solar power station is a novel renewable energy equipment in space to provide the earth with abundant and continuous power.The Orb-shaped Membrane Energy Gathering Array,one of the alternative construction schemes in China,is promising for collecting space sunlight with a large-scale spherical concentrator.Both the structural and optical performances such as root mean square deformation,natural frequency,system mass,and sunlight blocking rate have significant influences on the system property of the concentrator.Considering the comprehensive performance of structure and optic,this paper proposes a novel mesh grid based on normal polyhedron projection and spherical arc bisection for the supporting structure to deal with the challenge of the large-scale structural modular design.For both achieving low system mass and high surface precision,a multilayer and multi-objective optimization model is proposed by classifying the supporting structure into different categories and optimizing their internal and external diameters.The Particle Swarm Optimization algorithm is adopted to find optimal sectional dimensions of the different kinds of supporting structure.The infinite model is also established and structural analysis is carried out,which are expected to provide a certain reference for the subsequent detailed structural design.The numerical results indicate that the spherical concentrator designed by the novel mesh grid would obtain as high as 94.37%sunlight collection efficiency.The supporting structure constructed with the multiple layers would reduce the system quality by 6.92%,sunlight blocking rate by 28.54%,maximum deformation by 41.50%,and root mean square by 9.48%to the traditional single layer,respectively.

关键词： solar power space solar power station the OMEGA concept structural optimization particle swarm optimization

Fuzzy Multi-Criteria Decision Making for solar power Plant Location Selection

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Computers, Materials & Continua 2022年第9期72卷 4853-4865页

作者： Thai Hoang Tuyet Nhi Chia-Nan Wang Nguyen Van Thanh Department of Industrial Engineering National Kaohsiung University of Science and Technology80778Taiwan Faculty of Commerce Van Lang UniversityHo Chi Minh CityVietnam

Vietnam is one of Southeast Asian countries with a rapid GDP growth rate,ranging from 6.5%to 7%annually,leading to an average increase in energy demand of 11%per year.This demand creates many new opportunities in the energy industry,especially renewable energy,to ensure sustainable development in the future for the country with applications of solar energy growing at the present,and other opportunities to expand in the future.In Vietnam,thanks to favorable weather,climate,terrain characteristics and many preferential support policies,there are many great opportunities in the field of solar energy exploitation and application.Location selection is an important problem in all renewable energy projects.Therefore,the author proposed a fuzzy Multi-criteria Decision-Making Model(MCDM)model for solar power plant location selection in this study,and as a result,location 5 is the optimal solution.The contribution of this study is to propose a MCDM for solar power plant location selection in Vietnam under fuzzy environmental conditions.

关键词： solar power multi-decision topsis fanp fuzzy theory

Combining solar power with coal-fired power plants,or cofiring natural gas

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Clean Energy 2018年第1期2卷 1-9页

作者： Stephen Mills IEA Clean Coal Centre Apsley House176 Upper Richmond RoadLondon SW152SHUK

Coal-fired power operators continue to look for ways to increase the efficiency and extend the working lives of their plants by improving operational flexibility and reducing environmental impact.Two possible options are explored here:combining solar energy with coal-fired power generation,and cofiring natural gas in coal-fired plants.Both techniques show potential.Depending on the individual circumstances,both can increase the flexibility of a power plant whilst reducing its emissions.In some cases,plant costs could also be reduced.Clearly,any solar-based system is limited geographically to locations that receive consistently high levels of solar radiation.Similarly,although many coal-fired plants already burn limited amounts of gas alongside their coal feed,for cofiring at a significant level,a reliable,affordable supply of natural gas is needed.This is not the case everywhere.But for each technology,there are niche and mainstream locations where the criteria can be met.The need for good solar radiation means that the uptake of coal-solar hybrids will be limited.Cofiring natural gas has wider potential:currently,the largest near-term market appears to be for application to existing coal-fired plants in the USA.However,where gas is available and affordable,potential markets also exist in some other countries.

关键词： coal-fired power plant coal-solar hybrid power generation solar power cofiring hybrid

Expansion Planning for Renewable Integration in power System of Regions with Very High solar Irradiation

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Journal of Modern power Systems and Clean Energy 2021年第3期9卷 485-494页

作者： Musfer Alraddadi Antonio J.Conejo Ricardo M.Lima the Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOH 43210USA the Department of Integrated Systems Engineering and the Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOH 43210USA King Abdullah University of Science and Technology Thuwal 23955-6900Kingdom of Saudi Arabia

In this paper,we address the long-term generation and transmission expansion planning for power systems of regions with very high solar irradiation.We target the power systems that currently rely mainly on thermal generators and that aim to adopt high shares of renewable sources.We propose a stochastic programming model with expansion alternatives including transmission lines,solar power plants(photovoltaic and concentrated solar),wind farms,energy storage,and flexible combined cycle gas turbines.The model represents the longterm uncertainty to characterize the demand growth,and the short-term uncertainty to characterize daily solar,wind,and demand patterns.We use the Saudi Arabian power system to illustrate the functioning of the proposed model for several cases with different renewable integration targets.The results show that a strong dependence on solar power for high shares of renewable sources requires high generation capacity and storage to meet the night demand.

关键词： Generation and transmission expansion planning uncertainty solar power wind power

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solar power

大学英语 1988年第4期 18-19+11页

作者：郑艺

solar energy for your home is here.It can help you as a single homeowner.It can help the whole country as well.Whether or not solarenergy can save you money depends on many things.Where you liveis one factor.The type of home you have is another.Things likeinsulation,present energy costs,and the type of solar system you buy areadded factors.

关键词： solar power

A Novel Water Quality Monitoring System Based on solar power Supply ＆ Wireless Sensor Network

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A Novel Water Quality Monitoring System Based on Solar Power...

A comprehensive review for wind,solar,and electrical load forecasting methods

2011 International Conference on Energy and Environment(ICEE 2011)

作者： Ruan Yue Tang Ying College of Information Science and Technology Zhejiang Shuren University Hangzhou

This paper presents a water quality monitoring system using wireless sensor network（WSN） technology and powered by solar panel. In order to monitor water quality in different field sites and in real-time, a novel system architecture constituted by several distributed sensor nodes and a base station is suggested. The nodes and base station are connected using WSN technology. A prototype system using one node powered by solar cell and WSN technology is designed and implemented. Data collected by various sensors in the node side such as p H, turbidity and oxygen density is sent via WSN to the base station. The system has advantages such as low carbon emission, low power consumption, more flexible to deploy and so on.

关键词： water quality monitoring environmental friendly WSN solar power real-time

来源： cnki会议评论

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Global Energy Interconnection 2022年第1期5卷 9-30页

作者： Han Wang Ning Zhang Ershun Du Jie Yan Shuang Han Yongqian Liu Department of Electrical Engineering Tsinghua UniversityBeijing 100084P.R.China Low Carbon Energy Laboratory Tsinghua UniversityBeijing 100084P.R.China State Key Laboratory of Alternate Electrical power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206P.R.China School of New Energy North China Electric Power UniversityBeijing 102206P.R.China

Wind power,solar power,and electrical load forecasting are essential works to ensure the safe and stable operation of the electric power system.With the increasing permeability of new energy and the rising demand response load,the uncertainty on the production and load sides are both increased,bringing new challenges to the forecasting work and putting forward higher requirements to the forecasting accuracy.Most review/survey papers focus on one specific forecasting object(wind,solar,or load),a few involve the above two or three objects,but the forecasting objects are surveyed separately.Some papers predict at least two kinds of objects simultaneously to cope with the increasing uncertainty at both production and load sides.However,there is no corresponding review at present.Hence,our study provides a comprehensive review of wind,solar,and electrical load forecasting methods.Furthermore,the survey of Numerical Weather Prediction wind speed/irradiance correction methods is also included in this manuscript.Challenges and future research directions are discussed at last.

关键词： Wind power solar power Electrical load Forecasting Numerical Weather Prediction Correlation

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Coupled Thermal and Mechanical Dynamic Performances of the Molten Salt Packed-Bed Thermal Energy Storage System

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Journal of Thermal Science 2022年第5期31卷 1337-1350页

作者： HUANG Lijuan DU Baocun LEI Yonggang College of Civil Engineering Taiyuan University of TechnologyTaiyuan030024China

In this paper,the thermal and mechanical dynamic performances of molten salt packed-bed thermal energy storage(TES)system are investigated by coupling Finite Volume Method(FVM)and Finite Element Method(FEM).Firstly,an integration model coupling FVM and FEM in packed-bed tank is developed.Particularly,the pore water static pressure caused by the liquid level of molten salt is applied in the coupled method.Based on this model,the dynamic characteristics of thermal and stress distributions are simulated.Finally,the effects of porosity,inlet temperature and velocity on the thermal and stress performances are analyzed.The results indicate that the temperature and stress of the wall increase during the discharging process,and the peak stress occurs at the tank bottom connecting with the ground foundation.The method of increasing porosity is helpful to improve the discharging power,but the plastic failure on the wall would probably occur due to the higher stress level.Increasing inlet temperature has negative influence on the thermal and safety performances,because lower discharging power and higher stress would be produced adversely.Although the lower stress can be achieved when the higher inlet velocity is adopted,the effective discharge time would be decreased significantly.

关键词： solar power thermal energy storage packed-bed dynamic performance stress

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