Proceedings of the Institution of Civil Engineers-Energy最新文献

Municipal wastewater for energy generation: a favourable approach for developing nations 城市废水发电：对发展中国家有利的方法

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2024-01-25 DOI: 10.1680/jener.23.00019

Masooma Batool, Laila Shahzad, Arifa Tahir

{"title":"Municipal wastewater for energy generation: a favourable approach for developing nations","authors":"Masooma Batool, Laila Shahzad, Arifa Tahir","doi":"10.1680/jener.23.00019","DOIUrl":"https://doi.org/10.1680/jener.23.00019","url":null,"abstract":"This study focuses on understanding municipal wastewater (MWW) constituents and assessing technological options to harness the energy content of wastewater in developing countries. There are numerous research studies related to water treatment technologies and wastewater energy value. However, it remains to be seen which perspectives actually make technology adoption feasible. This study explores and presents the potential for some viable and innovative MWW treatment plant (WWTP) systems as a paradigm shift towards resource recovery, energy neutrality and the production of renewable energy by WWTPs. Various cost-effective opportunities related to operational strategies, plant redesign and the upgrading of current WWTPs that can foster self-reliant communities were visualised. Thermal and chemical pretreatments, sequential batch reactors, anaerobic membrane fluidised bioreactors, ammonia-based aeration control and combined heat and power systems can collectively contribute to energy recovery by WWTPs, ranging from 85 to 111%. The study suggests that upgrading the system to become an energy self-reliant water treatment system outweighs the multimode costs associated with health and ecological damages by reducing diseases, pollution and poor productivity regimes.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"13 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140314315","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

Long-term heat storage opportunities of renewable energy for district heating networks 区域供热网络可再生能源的长期蓄热机会

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2023-12-15 DOI: 10.1680/jener.23.00023

Kristian Emil Schrøder Hansen, George Xydis

{"title":"Long-term heat storage opportunities of renewable energy for district heating networks","authors":"Kristian Emil Schrøder Hansen, George Xydis","doi":"10.1680/jener.23.00023","DOIUrl":"https://doi.org/10.1680/jener.23.00023","url":null,"abstract":"This work compares different thermal heat storage solutions existing in the market, fueled with energy from different renewable energy sources with a focus on integrating it into the district heating grid. The paper bases a case on the municipality of Silkeborg, which has the largest solar thermal panel plant in northern Europe. It has been possible to collect data on the produced energy for the municipality of Silkeborg from different renewable energy sources. We used a theoretical approach to compare with assumed excess power from wind and solar in the DK1 area, with Silkeborg's allocated excess power at 0.01%. This yielded overall efficiencies between <i>η</i> = 0.739 - 0.765 and <i>η</i> = 0.864 - 0.895 for the Silkeborg solar thermal plant. These data have been utilized in the analysis, where the journey from harvesting the renewable energy until it reaches the end consumer, comparing the different solutions. Four different thermal heat storage solutions were compared: Tank Thermal Energy Storage, Pit Energy Storage, Aquifer Thermal Energy Storage, and Borehole Energy Storage (BTES). The analysis showed that the best solution for storing thermal energy for a longer period of time was the BTES out of the four solutions compared, with the lowest heat loss rate of 0.6% and the highest efficiency of up to 89.5%. However, some complications make it difficult to establish a BTES storage solution, since it is very much dependent on the earth's conditions and initial capital.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"27 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138716494","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

ML based framework for optimal distributed generation management including EV loading 基于机器学习的最优分布式发电管理框架，包括电动汽车负载

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2023-11-28 DOI: 10.1680/jener.23.00012

Ch Sekhar Gujjarlapudi, Dipu Sarkar, Sravan Kumar Gunturi, Yanrenthung Odyuo

{"title":"ML based framework for optimal distributed generation management including EV loading","authors":"Ch Sekhar Gujjarlapudi, Dipu Sarkar, Sravan Kumar Gunturi, Yanrenthung Odyuo","doi":"10.1680/jener.23.00012","DOIUrl":"https://doi.org/10.1680/jener.23.00012","url":null,"abstract":"The load profile of radial distribution networks (RDN) gets significantly impacted when plug- in electric vehicles (PEVs) are connected to it in large numbers. The disturbances in the load profile may lead to increased power losses in distribution lines, and deterioration of network voltage profile. Provision of distributed generation (DG) at strategic locations in the distribution network can help to compensate the impact on the electrical network due to PEVs loads. This paper proposes the use of Machine Learning (ML) based models for determining the optimal location of distributed generators (DGs) in RDN. The proposed method considered time-varying load in addition to PEVs load. The suggested method determines optimal DGs placement based on Power loss reduction index (PLRI), and Voltage deviation index reduction index (VDIRI). Four distinct types of ML models were used in the proposed approach using synthesized data on IEEE 33-bus RDN. The performance of the ML models were evaluated with respect to mean squared error (MSE) and mean absolute percentage error (MAPE) and, for the ML models considered, Random Forest ML model gave the best performance.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"21 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138509564","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

Tidal range electricity generation into the 22nd century 潮汐能发电进入22世纪

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2023-11-22 DOI: 10.1680/jener.23.00031

David Vandercruyssen, Simon Baker, David Howard, George Aggidis

{"title":"Tidal range electricity generation into the 22nd century","authors":"David Vandercruyssen, Simon Baker, David Howard, George Aggidis","doi":"10.1680/jener.23.00031","DOIUrl":"https://doi.org/10.1680/jener.23.00031","url":null,"abstract":"Tidal range electricity generation schemes are designed to have a minimum operational life of at least 120 years, making it important to plan for changes such as Sea Level Rise (SLR). Previous studies have shown that schemes can maintain the existing tidal range within the impoundment and protect areas from flooding. Here it is demonstrated that tidal range technology can maintain the current tidal extent despite SLR and suggests the operational strategies to achieve it. The approach is the only way to safeguard existing intertidal habitats. Mechanical and electrical plant requires a major overall, upgrade or replacement every 40 years; the levelised cost of energy (LCOE) is structured in 40year periods reducing after the first period. Increasing the capacity or efficiency of the plant during the refits allows the protection of low-lying areas to be maintained and more electricity to be generated. The strategy requires energy to be used in pumping to achieve the current low tidal limits and the incoming tide to be curtailed to maintain the high tide extent, but there is very little effect on annual electricity production (AEP). Flexible operation can offer some protection from riverine flooding and existing inundation cycles can be maintained.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"22 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138509563","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

Wind energy potential assessment: a case study in Central India 风能潜力评估:以印度中部为例

IF 1.1 4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2023-11-20 DOI: 10.1680/jener.22.00016

Sukanta Roga, Hiren Dahiwale, Shawli Bardhan, Sunanda Sinha

{"title":"Wind energy potential assessment: a case study in Central India","authors":"Sukanta Roga, Hiren Dahiwale, Shawli Bardhan, Sunanda Sinha","doi":"10.1680/jener.22.00016","DOIUrl":"https://doi.org/10.1680/jener.22.00016","url":null,"abstract":"Access to sustainable energy is pivotal for economic development and environmental stewardship. The shift towards renewable energy is essential for mitigating climate change and ensuring long-term energy sustainability. Though developing nations possess significant renewable energy capacity, transitioning to renewable sources remains a challenge. Wind energy is playing a significant role in enhancing global renewable energy capacity, with its effectiveness varying based on regional topography. India's growing wind energy market holds promise, contributing to reduced carbon emissions and sustainable energy production. This research leverages Windographer to conduct a comprehensive analysis of the wind energy potential at the distinct site of Nagpur, located in India. The evaluation encompasses monthly average wind speeds, prevailing wind directions depicted through wind rose diagrams, and wind power density calculations, collectively determining the site's classification. In this study, Weibull parameters are derived using four distinct methods to estimate the probability distribution function. The average wind power density is found to be 13.63 W/m² and 71.08 W/m² at heights of 10m AGL and 100m AGL, respectively. Through wind turbine output analysis, numerous turbine models are assessed for suitability at the specified location. Remarkably, the Windtec DD 3000-125 model displays the highest capacity factor of 9.27%. The findings underscore a relatively modest wind potential in the examined area. Nonetheless, this site can generate approximately 24,12,379 kW/year of electricity using the aforementioned wind turbine model.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"19 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138509570","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

Prediction of energy performance of residential buildings using regularized neural models 基于正则化神经模型的住宅建筑节能性能预测

4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2023-11-10 DOI: 10.1680/jener.23.00017

Komal Siwach, Harsh Kumar, Nekram Rawal, Kuldeep Singh, Anubhav Rawat

{"title":"Prediction of energy performance of residential buildings using regularized neural models","authors":"Komal Siwach, Harsh Kumar, Nekram Rawal, Kuldeep Singh, Anubhav Rawat","doi":"10.1680/jener.23.00017","DOIUrl":"https://doi.org/10.1680/jener.23.00017","url":null,"abstract":"Human habitats are one of the major consumers of energy. Therefore, in the current age of increasing carbon footprints, analyzing energy efficiency of a building is imminent, which has been taken up in the current work. Machine learning based Artificial Neural Network-ANN approach is used in the current work to study building-energy-performance. Total eight parameters; relative compactness, surface area, wall area and roof area of the building, overall height, and orientation of the building, glazing area and its distribution are selected as the input parameters and heating and cooling loads as the output parameters. The network prediction capability was checked by comparing the predictions of the ANN architecture with the benchmark test case. A well trained and validated ANN is used to predict 96 conditions by varying glazing area and glazing area distribution. ANN is found to capture the physics efficiently. This study revealed that there is a significant potential to improve the energy efficiency of the building and the maximum saving in the cooling load can be as high as 20.67% for a fraction of the glazing areas equal to 0.15 if glazing area distribution is kept 32.5% in North, and 22.5% each in the East, South and West.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"90 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091744","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

Incorporating externalities when optimising power system expansion plans: a case study for Vietnam 优化电力系统扩展计划时纳入外部性:越南案例研究

4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2023-11-09 DOI: 10.1680/jener.22.00066

Timothy Wyatt

{"title":"Incorporating externalities when optimising power system expansion plans: a case study for Vietnam","authors":"Timothy Wyatt","doi":"10.1680/jener.22.00066","DOIUrl":"https://doi.org/10.1680/jener.22.00066","url":null,"abstract":"Power system expansion planning has traditionally been conducted in two phases: optimisation of the future generation system to satisfy forecast demands, followed by that of a complementary transmission system. However, it is now computationally realistic to optimise both aspects simultaneously, even for large and complex systems. At the same time, the range of candidate generation plant types to be considered has widened considerably, with the technical and economic characteristics of wind, solar and biomass plants now having to be compared with those of conventional thermal and hydro plants. It is also becoming increasingly important to take explicit account, within the planning process, of the so-called ‘externalities’ such as emission limits, budget constraints and demand-management measures, in addition to the environmental costs and secondary benefits associated with individual projects. This paper describes the results of a study to demonstrate the feasibility of explicitly considering a range of externalities when mathematically optimising integrated generation and transmission system expansion plans, using the Vietnamese power system as an example.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":" 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135191982","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

Equality, diversity and inclusion and gendered analysis for place-based hydrogen solutions 基于地点的氢解决方案的平等、多样性和包容性以及性别分析

4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2023-10-18 DOI: 10.1680/jener.22.00068

Giulia M. Mininni, Ralitsa Hiteva

{"title":"Equality, diversity and inclusion and gendered analysis for place-based hydrogen solutions","authors":"Giulia M. Mininni, Ralitsa Hiteva","doi":"10.1680/jener.22.00068","DOIUrl":"https://doi.org/10.1680/jener.22.00068","url":null,"abstract":"A global endeavour to accelerate decarbonisation of the economy and to encourage the use of diverse non-fossil-fuel energy vectors, including hydrogen is underway. Hydrogen transitions are mainly driven by technological specifications and centred on the adoption of new specialised skills. Limited attention is given to other social aspects such as workforce diversity, and existing local skills sets, which are also critical to enabling such transitions. There is strong evidence that the energy sector is male-dominated. However, there is growing consensus that gender diversity in energy sector workforces can bring about socio-economic and environmental benefits. Place (geography) is also increasingly gaining recognition as a key driver of social, economic and environmental benefits from energy transition. This paper reviews 26 national and regional hydrogen strategies, through a gendered analysis and a place-based perspective, to evaluate the extent to which developing hydrogen solutions in a range of locations is furthering Equality, Diversity and Inclusion (EDI) towards a just transition - a fair distribution of benefits and opportunities across genders. The paper aims to open up a discussion with engineers, decision-makers and hydrogen industry professionals about applying gendered and place-specific analysis to emerging decarbonisation technologies.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"257 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135888145","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

Characteristic analysis and experimental study of a segmented reflection solar concentrator 分段反射太阳能聚光器特性分析与实验研究

4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2023-09-29 DOI: 10.1680/jener.23.00016

Qian Zhang, Song Chen, Bin Yuan, Lei Huang

{"title":"Characteristic analysis and experimental study of a segmented reflection solar concentrator","authors":"Qian Zhang, Song Chen, Bin Yuan, Lei Huang","doi":"10.1680/jener.23.00016","DOIUrl":"https://doi.org/10.1680/jener.23.00016","url":null,"abstract":"In this paper, a segmented specular reflection solar concentrator is proposed. Many mirrors are arranged in the same plane, and all the reflected rays fall on the cylindrical focal surface. The glass mirrors are placed in different positions, tilt angles and widths, and reflect light without blocking each other. Through the theoretical analysis of this type of concentrating system, in the same space span, with the increase of the installation height of the cylindrical focal surface, the concentrating ratio and area utilization rate gradually increase. The area utilization ratio is related to the ratio of mirror installation span and receiver height, and the concentrating ratio is linear to the number of mirrors. Through photothermal experimental analysis, the size of liquid flow in the pipeline has basically no influence on the photothermal conversion efficiency of the concentrator system. The greater the radiation intensity received of the heat collecting tube, the higher the heat collection efficiency of the solar collecting system. As the effective heat collection length gradually decreases, the ambient temperature gradually decreases, and the heat dissipation of the collector tube increases, the heat collection efficiency decreases significantly.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135193199","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

Pumps as turbines for energy recovery in water distribution systems: a review 水泵在配水系统中作为能量回收的涡轮机:综述

4区工程技术

Proceedings of the Institution of Civil Engineers-Energy Pub Date : 2023-09-20 DOI: 10.1680/jener.23.00001

Sabrina da Silva Corrêa, Júlia Danielle Silva de Souza, Andreia Azevedo Abrantes de Oliveira, Saulo de Tarso Marques Bezerra

{"title":"Pumps as turbines for energy recovery in water distribution systems: a review","authors":"Sabrina da Silva Corrêa, Júlia Danielle Silva de Souza, Andreia Azevedo Abrantes de Oliveira, Saulo de Tarso Marques Bezerra","doi":"10.1680/jener.23.00001","DOIUrl":"https://doi.org/10.1680/jener.23.00001","url":null,"abstract":"Energy recovery and pressure management are essential to achieve sustainable improvements in the development of water distribution systems (WDS). An alternative that has been studied worldwide is the use of pumps as turbines (PAT) replacing pressure reducing valves (PRV) to conciliate pressure control and energy production. This work aims to investigate the current and most recent literature regarding the use of PAT, addressing technical and economic implications that the technical-scientific community has analyzed. The search terms used in the Scopus and Web of Science databases were {‘pump as turbine’ AND ‘water supply network’, ‘water distribution network’ OR ‘water distribution system’}. A total of 59 papers were analyzed, highlighting the operation of PAT as well as selection and location methods, with the evaluation of electricity production, decreased leaks, and especially a suitable cost/benefit ratio. The review indicates that PAT have been infrequently used in real systems. However, the application is greatly feasible from the technical and economic points of view, and in a scenario of variable-speed PAT, the amount of energy produced is high. Future research should be directed to the optimization of new PAT settings so they can better deal with the operational variations in the systems.","PeriodicalId":48776,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Energy","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136307160","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