Energy and Sustainability IX最新文献

DECISION SUPPORT SYSTEM USED TO IMPROVE THE COMPETITIVENESS OF A POWER GENERATING COMPANY UNDER CONDITIONS OF UNCERTAINTY 决策支持系统用于在不确定条件下提高发电企业的竞争力

Energy and Sustainability IX Pub Date : 2021-12-15 DOI: 10.2495/esus210021

A. Domnikov, M. Khodorovsky, L. Domnikova

{"title":"DECISION SUPPORT SYSTEM USED TO IMPROVE THE COMPETITIVENESS OF A POWER GENERATING COMPANY UNDER CONDITIONS OF UNCERTAINTY","authors":"A. Domnikov, M. Khodorovsky, L. Domnikova","doi":"10.2495/esus210021","DOIUrl":"https://doi.org/10.2495/esus210021","url":null,"abstract":"In real life energy problems that do not contain uncertainties are more of an exception than the rule. Solving the problems of analyzing the state and development of energy systems, including power generating companies, is seriously complicated by the uncertainty of initial information observed when describing the current and future level of competitiveness, as well as the uncertainty of criteria on quality of the state and of decisions on effective development being made. The difficulties in analyzing the state of energy systems caused by the influence of objective factors are such that, despite numerous researchers working in this area, they are still far from being overcome. Therefore, studies on improving the decision-making system to improve the competitiveness of a power generating company, taking into account the uncertainty factors in solving the tasks considered in this article, are relevant. The article proposes a scheme for elaborating a system of informational support for decision-making pertaining to development of a power generating company. Methods for determining results of operations on fuzzy parameter values have been developed. We present here methods for solving selection problems with fuzzy values of criterion assessments on a finite set of alternatives and classification problems with a fuzzy description of classes and values of indicators characterizing the power generating companies’ competitiveness. An algorithm for informational support of the process of generation and selection of development alternatives for power generating companies in a high economic risk environment has been developed. In the course of this study we have reviewed the directions for increasing the level of competitiveness of a power generating company, taking into account any peculiarities of the use of innovative technologies in the area of energy generation in an environment where uncertainty and multiple criteria are present.","PeriodicalId":285062,"journal":{"name":"Energy and Sustainability IX","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128217954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

CHARACTERIZATION OF THE CONSUMPTION HABITS OF HOUSEHOLD PRODUCTS THAT PROTECT THE ENVIRONMENT 环保型家居产品的消费习惯特征分析

Energy and Sustainability IX Pub Date : 2021-12-15 DOI: 10.2495/esus210101

Omar Borda

引用次数: 0

NUMERICAL ANALYSIS ON HOT WATER STORAGE TANK INTEGRATED WITH PHASE CHANGE MATERIALS 相变材料集成热储水箱的数值分析

Energy and Sustainability IX Pub Date : 2021-12-15 DOI: 10.2495/esus210121

Elisangela Jesus D'Oliveira, Sol Carolina Costa Pereira, U. Azimov

{"title":"NUMERICAL ANALYSIS ON HOT WATER STORAGE TANK INTEGRATED WITH PHASE CHANGE MATERIALS","authors":"Elisangela Jesus D'Oliveira, Sol Carolina Costa Pereira, U. Azimov","doi":"10.2495/esus210121","DOIUrl":"https://doi.org/10.2495/esus210121","url":null,"abstract":"The combination of solar collectors with latent heat thermal energy storage system (LHTESS) has been employed to utilise solar energy more effectively, as this technology can provide a balancing function to match the variability in supply and demand, reducing the supply challenges for electricity. Computational fluid dynamic (CFD) has been proven to be an important mathematical tool for optimisation purposes; thus, it can be used to validate different design configurations. This study aims to conduct a numerical simulation using ANSYS/Fluent to investigate the thermal behaviour of a phase change material (PCM) storage system integrated with a thermal solar collector and compare it with experimental data from the literature review, with the objective of investigating the appropriate selection of the storage media material. The good correspondence between the numerical simulation results and the experimental results validates the numerical model proposed to be used with confidence to evaluate the performance of the solar collector in different configurations. The configurations evaluated include different types of phase change materials and NEPCM (paraffin wax, RT64HC, beeswax, RT64HC with 1 wt.% of Cu, beeswax with 0.15 wt.% of GNPs). A time step sensitivity analysis was conducted and the results obtained showed that the numerical model is not time dependent. From the results obtained beeswax with 0.15 wt.% had the highest peak of the average temperature of the water, however the integration of PCMs does not offer major benefits in terms of heat gains to compensate the highest cost related to these materials.","PeriodicalId":285062,"journal":{"name":"Energy and Sustainability IX","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132143838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

CONSIDERING MATERIAL CYCLES FOR A TRANSITION TO LOW-CARBON ENERGY SYSTEMS IN AOTEAROA/NEW ZEALAND: A SYSTEMATIC REVIEW 考虑新西兰向低碳能源系统过渡的材料循环:系统回顾

Energy and Sustainability IX Pub Date : 2021-12-15 DOI: 10.2495/esus210071

Isabella Pimentel Pincelli, A. Brent, J. Hinkley

{"title":"CONSIDERING MATERIAL CYCLES FOR A TRANSITION TO LOW-CARBON ENERGY SYSTEMS IN AOTEAROA/NEW ZEALAND: A SYSTEMATIC REVIEW","authors":"Isabella Pimentel Pincelli, A. Brent, J. Hinkley","doi":"10.2495/esus210071","DOIUrl":"https://doi.org/10.2495/esus210071","url":null,"abstract":"The decarbonisation of energy systems plays a central role in climate change mitigation strategies. Yet, the implementation of new energy infrastructure increases material demand, especially metals, and poses a challenge with managing their end-of-life. However, it is not yet clear to what extent integrated analyses of energy and material systems have been undertaken for the New Zealand context. This paper provides a systematic literature review to inform how material analyses have been incorporated in the planning of low-carbon energy systems in New Zealand. The results show that research efforts have forecasted low-carbon energy systems and modelled some of the infrastructure required, as well as the associated lifecycle emissions considering scenarios of different renewable electricity mixes and of improvements in energy efficiency. However, material systems – whether virgin material demand or implications for recycling – have not been considered in low-carbon energy pathways for New Zealand. We recommend energy and material systems analyses for New Zealand should become more integrated to inform better policy and decision-making. This could be achieved by developing a model that integrates energy system modelling with dynamic stock-flow models and prospective lifecycle analysis.","PeriodicalId":285062,"journal":{"name":"Energy and Sustainability IX","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127641786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

INVESTIGATION OF ENERGY CONSUMPTION IN RESIDENTIAL BUILDINGS IN HOT REGIONS 炎热地区住宅建筑能耗调查

Energy and Sustainability IX Pub Date : 2021-12-15 DOI: 10.2495/esus210051

Abdullah Alharbi, Marwan Alrehaili, M. Alwetaishi, A. Alahmadi, A. Balabel, A. Alzaed

引用次数: 0

IDENTIFICATION AND CLASSIFICATION OF THE STATES OF COGENERATION SYSTEMS BY COMPETITIVENESS LEVELS OF POWER GENERATING COMPANIES 利用发电公司的竞争力水平对热电联产系统状态进行识别和分类

Energy and Sustainability IX Pub Date : 2021-12-15 DOI: 10.2495/esus210031

A. Domnikov, M. Khodorovsky, L. Domnikova

{"title":"IDENTIFICATION AND CLASSIFICATION OF THE STATES OF COGENERATION SYSTEMS BY COMPETITIVENESS LEVELS OF POWER GENERATING COMPANIES","authors":"A. Domnikov, M. Khodorovsky, L. Domnikova","doi":"10.2495/esus210031","DOIUrl":"https://doi.org/10.2495/esus210031","url":null,"abstract":"This paper tackles the issues of elaborating and researching methods for generating and selecting information for classifying the states of energy cogeneration systems according to levels of competitiveness. Assessment of the level of competitiveness consists in analyzing the state of centralized and distributed energy cogeneration systems, both in terms of local and integrated indicators of their operations. Joint analysis of the said systems is a complex task that requires the use of adapted methods for its solution. Creating methods for classifying the states of energy cogeneration systems according to levels of their competitiveness is a multilayered task. Since these systems are a combination of engineering, economic, environmental and other subsystems, the number of factors affecting their operations is rather high. A change in the state of energy cogeneration systems can be accompanied by a change in a variety of performance indicators. The behavior of such systems is effectively studied by means of mathematical statistics methods. It is well-known that the issues of diagnosticating and modeling the expected level of competitiveness of power generating companies are poorly formalized multiparametric problems with insufficiently defined information and multidimensional relationships between indicators that typify competitiveness. Therefore, the procedure for classifying the states of energy cogeneration systems according to their competitiveness levels, with subsequent review of both the properties of individual classes and the differences between them, fit well into the discriminant analysis model. The use of discriminant analysis technique made it possible to build a classification system that allows to identify the state of multidimensional objects in energy cogeneration systems.","PeriodicalId":285062,"journal":{"name":"Energy and Sustainability IX","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126940187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

THERMAL EFFECT OF LIGHTING AND WINDOW-TO-WALL RATIO IN MOSQUES: A CASE STUDY IN A HOT CLIMATE – SAUDI ARABIA 清真寺内照明和窗墙比的热效应:炎热气候下的案例研究——沙特阿拉伯

Energy and Sustainability IX Pub Date : 2021-12-15 DOI: 10.2495/esus210041

Mohammed M Alshareef, Muneer S. Alosaimi, M. Alwetaishi, A. Balabel, A. Alahmadi, A. Alzaed

{"title":"THERMAL EFFECT OF LIGHTING AND WINDOW-TO-WALL RATIO IN MOSQUES: A CASE STUDY IN A HOT CLIMATE – SAUDI ARABIA","authors":"Mohammed M Alshareef, Muneer S. Alosaimi, M. Alwetaishi, A. Balabel, A. Alahmadi, A. Alzaed","doi":"10.2495/esus210041","DOIUrl":"https://doi.org/10.2495/esus210041","url":null,"abstract":"In mosques, the worshipers must feel comfortable to perform the prayer with reverence and reassurance. The question is whether there is a big difference in temperature ratio in the building upon a slight change of some factors, such as lighting type and window-to-wall ratio, and does the size of windows affect people’s thermal comfort in the building or not? This research aims to study the thermal effect resulting from these factors and compare the impact of each of them on the mosque’s cooling loads. The King Fahd Mosque in Taif was chosen because it has a free air-conditioning operation with no heating or cooling loads all year round. The size of the windows is large, to study the system accurately. The study has various methods: Simulating the mosque through one of the computer programs (TAS EDSL) and knowing the effect of sunlight concerning the size of the windows and the mosque’s lighting on all days of the year. Calculations of the heat effect derived from different lighting types. Also, field monitoring of the mosque using a set of devices to study the building and determine the actual sunlight and lighting effect. Finally, a survey of worshipers about their feeling of thermal comfort in this mosque was also investigated.","PeriodicalId":285062,"journal":{"name":"Energy and Sustainability IX","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132147121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IMPLEMENTING THE NEARLY ZERO-ENERGY BUILDINGS NOTION IN INDUSTRIAL FACILITIES 在工业设施中实施近乎零能耗的建筑理念

Energy and Sustainability IX Pub Date : 2021-12-15 DOI: 10.2495/esus210141

Simona Marinelli, R. Gamberini, B. Rimini, Francesco Nesi

{"title":"IMPLEMENTING THE NEARLY ZERO-ENERGY BUILDINGS NOTION IN INDUSTRIAL FACILITIES","authors":"Simona Marinelli, R. Gamberini, B. Rimini, Francesco Nesi","doi":"10.2495/esus210141","DOIUrl":"https://doi.org/10.2495/esus210141","url":null,"abstract":"Buildings have a central role to play in the energy transition driven by the European Commission with the introduction of the nearly zero-energy buildings notion for both new constructions and existing building stocks. Despite the growing interest in improving the energy performance of residential as well as office buildings, a research gap is identified in the field of the renovation of industrial buildings and facilities in terms of energy efficiency. A lack is recognized in terms of analysing the improvement of the work environment in all the areas that are not used as offices. Common decarbonisation strategies are usually adopted, as the electrification of some processes, the replacement of obsolete machinery or the implementation of renewable energy sources. However, reaching the ambitious levels set by the Energy Performance of Buildings Directive which aims at nearly zero-energy buildings, remains a challenge. The present paper aims to analyse the main barriers that hamper the development of highly energy efficient and decarbonised buildings in the productive sector and the effective deep energy renovations of industrial facilities. Moreover, it intends to highlight alternative strategies and opportunities and to underline potential benefits.","PeriodicalId":285062,"journal":{"name":"Energy and Sustainability IX","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116578162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CIRCULAR ECONOMY CONCEPTS APPLIED TO WASTE ANAEROBIC DIGESTION PLANTS 循环经济概念在垃圾厌氧消化装置中的应用

Energy and Sustainability IX Pub Date : 2021-12-15 DOI: 10.2495/esus210061

Francesco Palermito, E. Magaril, F. Conti, A. Kiselev, E. Rada

{"title":"CIRCULAR ECONOMY CONCEPTS APPLIED TO WASTE ANAEROBIC DIGESTION PLANTS","authors":"Francesco Palermito, E. Magaril, F. Conti, A. Kiselev, E. Rada","doi":"10.2495/esus210061","DOIUrl":"https://doi.org/10.2495/esus210061","url":null,"abstract":"Anaerobic digestion contributes to the implementation of circular economy (CE) concepts. This process is assuming an increasingly important function in the treatment of the organic fraction of municipal solid waste (MSW), that is, food waste, where selective collection is optimised. The possibility of combining the recovery of matter with energy makes this approach interesting for the concepts of circular economy. Specifically, the extraction of biomethane from biogas and the following refining of the residual off-gas from impurities gives as result the extraction of CO2 that can also be used for food industry applications. A high-quality source separation of food waste gives the chance to generate a good product, compost, coherently with the aims of the circular economy principles. The use of dry processes of anaerobic digestion allows avoiding the discharge of (treated) water in the environment. Co-digestion is another option that deserves a wider adoption, because of the possibility to exploit existing volumes of digestion. This paper presents a bibliographic research based on current CE progress and MSW anaerobic digestion infrastructure in Italy and Russia. Perspectives of the sector are discussed too.","PeriodicalId":285062,"journal":{"name":"Energy and Sustainability IX","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115689344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

EFFECT OF TORREFACTION PROCESS ON PROPERTIES OF PALM KERNEL SHELL BY USING TORREFACTION ROTARY KILN 焙烧回转窑焙烧工艺对棕榈仁壳性能的影响

Energy and Sustainability IX Pub Date : 2021-12-15 DOI: 10.2495/esus210131

Nattarat Chutwiboonkun, N. Thuchayapong, Nattawut Tharawadee

{"title":"EFFECT OF TORREFACTION PROCESS ON PROPERTIES OF PALM KERNEL SHELL BY USING TORREFACTION ROTARY KILN","authors":"Nattarat Chutwiboonkun, N. Thuchayapong, Nattawut Tharawadee","doi":"10.2495/esus210131","DOIUrl":"https://doi.org/10.2495/esus210131","url":null,"abstract":"This research studies the effect of the torrefaction process by using a rotary kiln on torrefied biomass properties. The torrefaction rotary kiln and palm kernel shell were used in this research. An investigation focused on and studied the palm kernel shell in the torrefaction process using a torrefaction rotary kiln. The solid phase (biochar), liquid phase (condensed liquid), and gas-phase ratio were clarified. The feasibility of a palm kernel shell as renewable energy was investigated. Palm kernel shell waste is abundant in the southern region of Thailand. The waste from palm kernel shells is around 500,000 tons per year and increasing every year. The palm kernel shell (raw material) has an advantage as high calorific value. Moreover, the palm kernel shell is potentially fuel in the boiler (instead of charcoal) and is widely used in many power plants. The value of the palm kernel shell depends on the quality of biomass. To find an optimum condition in the palm kernel shell industrial process, the temperature of the torrefaction process and rotation speed were set at 230, 250, 270°C, and 1, 2, 3 rpm, respectively. The product yield, characteristics of torrefied biomass, moisture content, particle distribution, mass yield, and energy yield were reported. From the result, the solid phase product was decreased when the torrefaction temperature increased, the fluid phase product and gas-phase product were increased. The particle size after torrefaction was smaller than raw biomass. The mass yield and energy yield decreased when the torrefaction was increased. On the other hand, the mass yield and energy yield increased when rotation speed was increased. It was concluded that the optimum condition for palm kernel shell in torrefaction process was 230°C with 3 rpm. The torrefaction process can improve the properties and combustion performance of biomass. The palm kernel shell was a suitable fuel and co-burning in the economic energy plant in the torrefaction process with the optimum condition.","PeriodicalId":285062,"journal":{"name":"Energy and Sustainability IX","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134427535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0