Proceedings of the Institution of Civil Engineers-Energy最新文献_第4页

Energy efficient design of building facade, inspired by human skin 建筑立面节能设计，灵感来源于人体皮肤

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2022-05-19 DOI: 10.1680/jener.21.00102

Faezeh Tafreshi, Babak Alemi

{"title":"Energy efficient design of building facade, inspired by human skin","authors":"Faezeh Tafreshi, Babak Alemi","doi":"10.1680/jener.21.00102","DOIUrl":"https://doi.org/10.1680/jener.21.00102","url":null,"abstract":"Much of the energy consumed is used to provide comfortable conditions in buildings. Windows (all transparent walls) is one of the weakest points in wasting energy. In this study, using the characteristics of human skin as a protective layer and interface between the inside and outside of the body, an attempt is made to improve the transparent walls performance of the building facade. Simultaneously, the process of question-answering is articulated, and the characteristics of this natural pattern are discovered. Then, human skin traits are applied to enhance the diverse functions of facades. Finally, according to the characteristics of the skin, among more than 15 primary etudes, a vertical shading system is presented that can control the incoming radiation. The design is evaluated in two modes, controlled by temperature and controlled by the intensity of sunlight. The results show that more than 10% of energy consumption is reduced with movable shading systems. A separate study of energy consumption for cooling, heating, and lighting makes it more reasonable to use a temperature-controlled shading system, which can save 23% to 25% of the annual cost.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"12 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80228033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Thermal Performance of Radiant Floor Heating Systems Concrete Slabs with Embedded Fine Steel 细钢预埋混凝土板地板辐射采暖系统的热性能

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2022-05-19 DOI: 10.1680/jener.21.00118

K. Tota-Maharaj, B. Adeleke

{"title":"Thermal Performance of Radiant Floor Heating Systems Concrete Slabs with Embedded Fine Steel","authors":"K. Tota-Maharaj, B. Adeleke","doi":"10.1680/jener.21.00118","DOIUrl":"https://doi.org/10.1680/jener.21.00118","url":null,"abstract":"This paper investigated the application of recycled steel powder as an additive in concrete to increase the thermal properties of radiant floor heating systems (RFHS). The project aimed to increase the efficiencies of thermal conductivities, allowing radiant heat to produce higher energy efficient outputs for heating. Thermocouple readings measured lower temperatures with similar heating conditions as a standard mix slab due to heat transfer occurring evenly through a large surface area, thus transferring heat to the air at faster rates. The tests were completed by casting two 400×400×200mm deep slabs enclosing radiant heating pipes. Water was pumped at 40 and 60oC through the pipes. The temperature was recorded at various positions throughout the slab that would allow the multi-layered cylinder approach to analyse the rate of heat transfer, and calculate the efficiency of the heat transfer. The crushing strength of the proposed mix using steel powder replacement is shown to be reduced by 26% when a mix with 12.4% of steel powder is used. Contrary to the original hypothesis of this research, the investigation found rates of heat transfer during the heating stage were 3% lower for the mix containing steel powder compared to the standard mix.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"20 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83370664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Short-term Wind Power Prediction Based on CEEMDAN De-composition and Spatiotemporal Feature Fusion 基于CEEMDAN分解与时空特征融合的短期风电预测

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2022-04-25 DOI: 10.1680/jener.21.00104

Xingchen Guo, Rong Jia, Gang Zhang, Benben Xu, Xin He

{"title":"Short-term Wind Power Prediction Based on CEEMDAN De-composition and Spatiotemporal Feature Fusion","authors":"Xingchen Guo, Rong Jia, Gang Zhang, Benben Xu, Xin He","doi":"10.1680/jener.21.00104","DOIUrl":"https://doi.org/10.1680/jener.21.00104","url":null,"abstract":"Due to the randomness of wind power generation, the output power of a wind farm will fluctuate. As a result, the power grid can face a need for increased reserve capacity, increasing scheduling difficulties, and wind farm abandonment. An effective way to address these problems is to accurately predict the output power of wind farms. Traditional prediction methods usually make predictions based on wind data obtained at a single height. However, with long prediction periods, prediction errors are relatively large because the wind speed and direction at different heights have spatiotemporal correlations within a wind farm. In the model presented here, the wind power data are first decomposed by a “complete ensemble empirical mode decomposition with adaptive noise” model to obtain modal components with different fluctuation characteristics. Then, the characteristics of wind speed, wind direction, air pressure, and other data at different heights are extracted for spatiotemporal feature fusion. Actual measurement data from a wind farm in Chongqing are used to verify the feasibility and effectiveness of the proposed method.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"48 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89368661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance of a vertical wind turbine with permanent magnet synchronous generator 带永磁同步发电机的立式风力机性能研究

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2022-04-19 DOI: 10.1680/jener.21.00113

S. Roga, Vivek Kisku, Subir Datta

{"title":"Performance of a vertical wind turbine with permanent magnet synchronous generator","authors":"S. Roga, Vivek Kisku, Subir Datta","doi":"10.1680/jener.21.00113","DOIUrl":"https://doi.org/10.1680/jener.21.00113","url":null,"abstract":"The performance of a wind energy conversion system based on a vertical axis wind turbine and a permanent magnet synchronous generator was evaluated in a computational study. A power point tracking approach was used to determine the maximum output power from the system. The technique used in the study utilised the voltage and current from the generator as input to generate a reference voltage, which was then compared with the direct current output voltage obtained at the load resistor. A proportional integral controller was used to tune the error between the reference and output voltage. The generated output was then compared with a pulse generator before being fed to the insulated-gate bipolar transistor switch as a pulse width modulation signal. In the software, a system model was designed, and its simulation analysis was done. The input parameters for wind turbines, generator and boost converters were selected to achieve optimal output in terms of voltage, current, power, rotor speed, power coefficient, electromagnetic and mechanical torque. The computational results of the simulated wind energy conversion system were gathered and its performance examined.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"15 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74314628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Water-energy nexus for Birmingham, UK 英国伯明翰的水能联系

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2022-04-05 DOI: 10.1680/jener.21.00116

Babak Akram, Azadeh Kalateh Arabi

{"title":"Water-energy nexus for Birmingham, UK","authors":"Babak Akram, Azadeh Kalateh Arabi","doi":"10.1680/jener.21.00116","DOIUrl":"https://doi.org/10.1680/jener.21.00116","url":null,"abstract":"Water conservation and energy conservation are two sides of the same coin. Climate change effects on water-energy of Birmingham within the next century require a vast range of measures, energy policies and incentives to be implemented in the region. Assessing these energy-related policies help depict a good vision of the current opportunities for water-energy efficiency for households and businesses of the region. Reductions through changing consumption behavior by moving toward smarter and more efficient choices could have a remarkable potential to reduce water-energy consumption in Birmingham. This reduction potential that could help deliver Birmingham 2026 target, has been investigated to find how much the behavior of individual consumers in water-energy consumption has influenced the water, energy and carbon emissions of Birmingham. Evaluating the current actions and incentive policies with focusing on sustainable actions for vulnerable areas of the city to curb inefficient water and energy consumption helps better understand the trajectory toward having a sustainable city. This research gives a comprehensive view of the water and energy situation in Birmingham and also finds the most efficient choices and policies which can go along with the current works toward the sustainable target of the city.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"43 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87864219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The 2021 Glasgow Climate Pact – Steps on the Transition Pathway Towards a Low Carbon World 2021年《格拉斯哥气候公约》——向低碳世界过渡的步骤

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2022-03-28 DOI: 10.1680/jener.22.00011

R. Cohen, P. Eames, G. P. Hammond, M. Newborough, Brian Norton

引用次数: 11

Simulation and optimization study on a solar space heating system for office building in Baotou 包头市办公楼太阳能空间采暖系统仿真与优化研究

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2022-03-17 DOI: 10.1680/jener.21.00098

Qihui Yu, Jingyu Cao, Xin Tan

{"title":"Simulation and optimization study on a solar space heating system for office building in Baotou","authors":"Qihui Yu, Jingyu Cao, Xin Tan","doi":"10.1680/jener.21.00098","DOIUrl":"https://doi.org/10.1680/jener.21.00098","url":null,"abstract":"Dual-water tank energy storage has been adopted in some solar heating systems to mitigate solar energy randomness and instability. Two types of dual water tank solar heating system (DWTSH), one is traditional DWTSH system and the other system has thermal buffer which named TB-DWTSH, are introduced and analyzed in this paper. Analysis software called TRNSYS was used for the simulation, the tank water temperatures and solar guarantee of two systems were measured and compared. A new thermal comfort evaluation criterion for the solar heating system was briefly introduced. The TRNSYS model was verified by a pilot project of a traditional DWTSH system. The heating system were conducted based on the solar guarantee rate of the heating system and the thermal comfort index. Results showed that the simulation results are generally consistent with the experimental results. Secondly, compared with the traditional DWTSH system, the comfort index could be greatly improved in the TB-DWTSH system between 8 am and 9 am local time (LT). Furthermore, compared with the traditional DWTSH system, the energy consumption of the auxiliary heat source is reduced by 30%. This study provides a good foundation for future research on dual water tank solar heating systems.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"41 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85062205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the efficiency and energy consumption of electric and diesel pumping stations 电力和柴油泵站的效率和能耗研究

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2022-03-16 DOI: 10.1680/jener.21.00091

Ali Ghadami Firouzabadi, Seyed Mohsen Seyedan, Mehdi Jovzi, Mohammad Albaji, Khashayar Peyghan

{"title":"Study on the efficiency and energy consumption of electric and diesel pumping stations","authors":"Ali Ghadami Firouzabadi, Seyed Mohsen Seyedan, Mehdi Jovzi, Mohammad Albaji, Khashayar Peyghan","doi":"10.1680/jener.21.00091","DOIUrl":"https://doi.org/10.1680/jener.21.00091","url":null,"abstract":"Restricted water and energy resources of the planet, as well as an increasing demand for water and energy owing to population growth and an ever-increasing development of human societies, require an optimal utilisation of such resources. This study was conducted to investigate the consumption, dissipation and efficiency of energy in electric and diesel fuel pumping stations in the fields of Hamedan city, located in the west of Iran. The Nebraska pumping plant performance criteria were used to compare the performance of irrigation pumping stations. The input power, output power and total energy efficiency were calculated for the pumping stations. The results revealed that the total efficiency ranged between 3.2 and 24.4% in the diesel pumping stations and from 15.7 to 100% in the electric pumping stations. The mean of total efficiency and mean wasted energy in the diesel pumping stations were 14.1% and 51.8 kWh/h, respectively. The mean total efficiency and wasted energy in the electric pumping stations were 58.3% and 9.0 kWh/h, respectively. Factors such as pump and engine selection proportionate to the system's capacity and pressure, proper upkeep and maintenance of pumps and engines, and implementation of an optimum, rigid foundation could improve energy efficiency.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"11 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138529749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The modern global oil market under stress - system dynamics and scenarios 压力下的现代全球石油市场——系统动态与情景

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2022-03-14 DOI: 10.1680/jener.22.00020

M. Madhavi, W. Nuttall

{"title":"The modern global oil market under stress - system dynamics and scenarios","authors":"M. Madhavi, W. Nuttall","doi":"10.1680/jener.22.00020","DOIUrl":"https://doi.org/10.1680/jener.22.00020","url":null,"abstract":"Modelling techniques developed 40 years ago to gain insight into the issues of energy supply security remain powerful even as the focus of energy technology policy analysis has shifted to consider new problems and research methods more closely linked to pressing environmental challenges. Dynamic modelling continues to be of merit and indeed it has the potential to provide helpful perspectives on contemporary problems such as climate change and the Net Zero transition. This work seeks to help revive system dynamics modelling of the global oil market. The SD-based analysis used in this paper facilitates a rational representation of physical stocks and flows as well as causal linkages that drive decision-making in the global oil system. The use of SD provides insights (intuitive and counter-intuitive) into the macro-level non-linear dynamics of global oil exchanges and permits assessment of the potential impacts of future changes in system behaviour. The model exhibits damped oscillations in oil prices, broadly consistent with real market behaviours. The results further illustrate the resilience of market dynamics in the phase of extreme supply side shocks and reveal the ability of System Dynamics to simulate and model such effects even beyond the point of market failure.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"28 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85385839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Thermal Insulation on Building Energy Efficiency in Turkey 保温对土耳其建筑节能的影响

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2022-03-11 DOI: 10.1680/jener.21.00053

Asiye Aslan

{"title":"The Effect of Thermal Insulation on Building Energy Efficiency in Turkey","authors":"Asiye Aslan","doi":"10.1680/jener.21.00053","DOIUrl":"https://doi.org/10.1680/jener.21.00053","url":null,"abstract":"In light of current energy problems, building envelopes must achieve thermal comfort in buildings by consuming the least possible amount of energy, and thermal insulation in building envelopes helps to minimise energy consumption. This study determined the optimum insulation thickness of external walls, ceilings and floors of buildings as well as energy-saving and payback periods in 81 city centres in Turkey. The calculations were performed for commonly used walls, ceilings and floor constructions. The life cycle cost analysis and TS 825 standard (Thermal Insulation Requirements in Buildings) were also considered. In the calculations, the decreasing factor applied in TS 825 for surfaces that have no contact with outer air was considered. The results showed that the optimum insulation thickness of the external walls, ceilings and floors ranged between 3.5 and 20.0, 4.6 and 19.7 and 0.7 and 14 cm, respectively, depending on the type of energy and insulation material used. These findings suggest the possibility of saving up to 75% energy on the external walls, 90% on the ceilings, and 85% on the floors. Additionally, a saving of 12%–13% is likely obtainable in Turkey's total energy consumption when the optimum insulation thickness is applied to all residential buildings in the country.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"19 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78767062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2