34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)最新文献

{"title":"Assessment of the thermodynamic rarity of Mobile Phones PCBs","authors":"Jorge Torrubia, Antonio Valero, A. Valero","doi":"10.52202/062738-0180","DOIUrl":"https://doi.org/10.52202/062738-0180","url":null,"abstract":"","PeriodicalId":130836,"journal":{"name":"34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127385002","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}

{"title":"Simulation, optimization and design of a heating network at an industrial plant","authors":"Elias Vieren, K. Couvreur, Judith Vander Heyde, M. De Paepe, S. Lecompte","doi":"10.52202/062738-0177","DOIUrl":"https://doi.org/10.52202/062738-0177","url":null,"abstract":": Heating networks are a particularly interesting method to recover industrial waste heat (i.e. heat at temperature levels too low for electricity generation or direct recovery) for heating purposes. This study optimizes a heat network to be built at a steel plant, where the heat originates from the cooling loop of a walking beam furnace. The decision variables are the pipe sizes, pipe insulation thicknesses, supply and return temperatures, amount of consumers, size of the thermal energy storage system and size of the heat pump. The latter is not always required as different configurations are tested and only certain configurations includes higher temperature consumers. A thermal energy storage system is also optional as a steam back-up, in order to cope with potential heat shortages, is available. The optimization is done based on maximizing the net present value (NPV). Both a genetic algorithm as a brute force algorithm are used for the maximization of the NPV. However, in cases where the complexity of the model is high the brute force algorithm is disregarded. The results show that the heat network is economically feasible and exposes a clear trade-off for each decision variable. The introduction of a thermal energy storage system and/or heat pumps however are not feasible for this particular case study. In the optimized and best case scenario a NPV of 4 059 694 € and pay-back period of 4.01 year was found. Finally, a parametric sensitivity analysis is performed. In this analysis the sensitivity of the electricity cost, absolute pipe roughness, fuel costs, heat pump investment cost and imposed velocity limitations on the NPV are analysed.","PeriodicalId":130836,"journal":{"name":"34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115340217","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}

{"title":"The challenge of reducing supply temperature in existing district heating networks","authors":"E. Guelpa, M. Capone, V. Verda","doi":"10.52202/062738-0160","DOIUrl":"https://doi.org/10.52202/062738-0160","url":null,"abstract":"","PeriodicalId":130836,"journal":{"name":"34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121913235","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}

{"title":"Numerical analytical study of heat transfer inside the stack of a thermoacoustic device","authors":"K. Rogoziński, G. Nowak, I. Nowak, R. Buchalik","doi":"10.52202/062738-0131","DOIUrl":"https://doi.org/10.52202/062738-0131","url":null,"abstract":"","PeriodicalId":130836,"journal":{"name":"34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123981671","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}

{"title":"Numerical study of a centrifugal pump using Harmonic Balance Method in OpenFOAM","authors":"Stefano Oliani, N. Casari, M. Pinelli, A. Suman, M. Carnevale","doi":"10.52202/062738-0145","DOIUrl":"https://doi.org/10.52202/062738-0145","url":null,"abstract":"","PeriodicalId":130836,"journal":{"name":"34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125854629","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}

{"title":"Data reduction for mixed integer linear programming in complex energy systems","authors":"Luise Middelhauve, Natalija Ljubic, Julia Granacher, Luc Girardin, François M. A. Maréchal","doi":"10.52202/062738-0024","DOIUrl":"https://doi.org/10.52202/062738-0024","url":null,"abstract":"","PeriodicalId":130836,"journal":{"name":"34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125972143","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}

{"title":"Numerical assessment of increasing photovoltaic self-sufficiency of a low energy residential building in Belgium by using heat pump and energy storage","authors":"K. Simic, Klaas Thiers, Hugo Monteyne, J. Desmet, M. De Paepe","doi":"10.52202/062738-0161","DOIUrl":"https://doi.org/10.52202/062738-0161","url":null,"abstract":"In the line of measures aiming to reduce the greenhouse emissions and the total energy use of residential buildings, all new buildings built from the year 2020 within the European Union must meet the requirements of so-called Nearly Zero Energy Buildings (NZEB). An NZEB represents a building with high energy performance and significant coverage of its energy demand by utilizing renewable energy sources through on-site energy generation. A self-sustained building represents a building, which is only using energy generated on site to meet its energy requirements. In this article, self-consumption and self-sufficiency of an NZEB are assessed through numerical, transient detailed models made in programming language Modelica and simulated in the software tool Dymola. The two-floor residential building is modelled as a dwelling with the space heating energy demand of 30 kWh/m2year. The energy use of the building coincides with the occupancy profile of a family with four members with the dominating domestic hot water use over the space heating need. The space heating comfort conditions are attained with the low-temperature underfloor heating system. The domestic hot water demand is provided through a 300 l water tank. Both systems are coupled to an air to water heat pump. The aim of the research is to investigate the potential of increasing the self-consumption and self-sufficiency values by using thermal load shifting and electrical energy storage in order to compensate for the direct unbalance in optimal energy generation and energy use. For aspirations in achieving a complete self-sustainable dwelling, different sizes of energy storage and photovoltaic panels are used for the analysed case study conditions. However, special attention is paid to the available south roof space of the dwelling. For the use of 28 m2 of optimally positioned photovoltaic panels, the studied building achieves 49.1% of self-consumption and 27.2% self-sufficiency without any use of energy storages. With the electrical battery of 20 kWh and thermal energy storage of 1000 l, the building can meet self-consumption of 89.8% and self-sufficiency of 49.8% for specific boundary conditions.","PeriodicalId":130836,"journal":{"name":"34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129496339","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}

{"title":"Exergoeconomic analysis of Goswami cycle to exploit medium temperature heat from a geothermal site","authors":"Martina Leveni, B. Mendecka, Raffaello Cozzolino","doi":"10.52202/062738-0052","DOIUrl":"https://doi.org/10.52202/062738-0052","url":null,"abstract":"","PeriodicalId":130836,"journal":{"name":"34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128474044","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}

{"title":"Thermoeconomics as a cost accounting methodology for Spiral Economy and Industrial Symbiosis","authors":"A. Valero, César Torres","doi":"10.52202/062738-0059","DOIUrl":"https://doi.org/10.52202/062738-0059","url":null,"abstract":"","PeriodicalId":130836,"journal":{"name":"34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129320843","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}

{"title":"A numerical analysis of the temperature field evolution during an optimization of the catalyst distribution in a steam reforming reactor","authors":"Marcin Pajak, S. Kimijima, J. Szmyd","doi":"10.52202/062738-0185","DOIUrl":"https://doi.org/10.52202/062738-0185","url":null,"abstract":"","PeriodicalId":130836,"journal":{"name":"34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021)","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131978732","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}