International Journal of Low-carbon Technologies最新文献_第3页

Unexpected oxidative cracking of Diformyltricyclodecanes under catalyst-free and ultra-low temperature 二甲酰基三环癸烷在无催化剂和超低温下的意外氧化裂化

IF 2.3 4区工程技术

International Journal of Low-carbon Technologies Pub Date : 2023-03-31 DOI: 10.1093/ijlct/ctac136

Linan Dun, Xinyu Yu, Han Wang, P. Lin, Ziyao Xiong, Xu-qiang Guo, Libo Zhang

{"title":"Unexpected oxidative cracking of Diformyltricyclodecanes under catalyst-free and ultra-low temperature","authors":"Linan Dun, Xinyu Yu, Han Wang, P. Lin, Ziyao Xiong, Xu-qiang Guo, Libo Zhang","doi":"10.1093/ijlct/ctac136","DOIUrl":"https://doi.org/10.1093/ijlct/ctac136","url":null,"abstract":"\u0000 The oxidative cracking of diformyltricyclodecanes (DFTD) to C6-C8 alkenes and alkenes were systematically studied in this work. A series of experiments was performed over a broad range of conditions (temperature: 40–60 °C; oxygen pressure: 0–1.0 Mpa; reaction time: 5–90 min, solvent selection) for exploring the reaction route and mechanism. Results show that the higher temperature and oxygen pressure, as well as tetrahydrofuran (THF) as solvent are of benefit to the generation of cracking products. In addition, the kinetics of this reaction was explored by the dynamic fitting. The obtained kinetics parameters demonstrate that the transformation of intermediate to cracking products possesses higher activation energy than to dicarboxyltricyclodecaneacids (DCTDA), showing that higher temperature is conducive to the generation of DFTD cracking products. This work firstly demonstrated that DFTD could be formed into C6-C8 alkenes containing the same as gasoline compound by the oxidative cracking, suggesting that the by-product of petroleum and coal could be transferred into fuels, this expanded the application of DCPD and will have significant and positive influence on the petroleum and coal chemical industry.","PeriodicalId":14118,"journal":{"name":"International Journal of Low-carbon Technologies","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42482266","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

Improving a solar collector’s efficiency by selecting the composition of the working fluid used 通过选择所用工作流体的组成来提高太阳能集热器的效率

IF 2.3 4区工程技术

International Journal of Low-carbon Technologies Pub Date : 2023-03-29 DOI: 10.1093/ijlct/ctad027

Bader Alshuraiaan

引用次数: 0

Water harvesting through fog collectors: a review of conceptual, experimental, and operational aspects 通过集雾器收集水：概念、实验和操作方面的综述

IF 2.3 4区工程技术

International Journal of Low-carbon Technologies Pub Date : 2023-03-28 DOI: 10.1093/ijlct/ctac129

N. Verbrugghe, A. Khan

引用次数: 1

State of charge and state of health estimation strategies for lithium-ion batteries 锂离子电池的充电状态和健康状态估计策略

IF 2.3 4区工程技术

International Journal of Low-carbon Technologies Pub Date : 2023-03-28 DOI: 10.1093/ijlct/ctad032

Nanlan Wang, X. Xia, Xiaoyong Zeng

引用次数: 1

Evaluation of the heat absorption performance of konjac glucomannan/starch aerogel 魔芋葡甘聚糖/淀粉气凝胶的吸热性能评价

IF 2.3 4区工程技术

International Journal of Low-carbon Technologies Pub Date : 2023-03-23 DOI: 10.1093/ijlct/ctad003

Hong Qian, Jiaren Yang, B. Peng, Fangfang Mi, Wenjing Li, Sicong Yan, Juanli Wang, Fatang Jiang

引用次数: 0

Simulation and investigation of bioethanol production considering energetic and economic considerations 考虑能源和经济因素的生物乙醇生产模拟和研究

IF 2.3 4区工程技术

International Journal of Low-carbon Technologies Pub Date : 2023-03-22 DOI: 10.1093/ijlct/ctad008

Yaser Alaiwi, A. Abed, G. Smaisim, Mohamed Aly Saad Aly, Salema K. Hadrawi, Reza Morovati

{"title":"Simulation and investigation of bioethanol production considering energetic and economic considerations","authors":"Yaser Alaiwi, A. Abed, G. Smaisim, Mohamed Aly Saad Aly, Salema K. Hadrawi, Reza Morovati","doi":"10.1093/ijlct/ctad008","DOIUrl":"https://doi.org/10.1093/ijlct/ctad008","url":null,"abstract":"\u0000 Today, the use of alternative fuels that have plant origin has attracted the attention of most countries because these fuels emit less pollution. In this research, bioethanol production has been evaluated considering solar energy sources. In the present study, the possibility of developing net-zero energy concepts in a bioethanol production plant as one of the most consumed energy industries in the field of bio-systems of the country from a technical and economic perspective was investigated. The purpose of this research is to model the bioethanol production plant with the aim of achieving zero net energy using a photovoltaic system. In addition, technical and economic analyzes have been used in different approaches for a more detailed investigation. According to the modeling done, in the Zero net energy approach, the results showed that the maximum production of electrical energy by the photovoltaic cell is 76.6 GWh/yr. For this approach, the return on investment is 10.7 years. The area required to install photovoltaic modules in this approach is very large and equal to 88,334 m2.","PeriodicalId":14118,"journal":{"name":"International Journal of Low-carbon Technologies","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48409304","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

Preparation of lightweight ceramsite from remediated soil, waste glass and ceramics 利用修复土壤、废玻璃和陶瓷制备轻质陶粒

IF 2.3 4区工程技术

International Journal of Low-carbon Technologies Pub Date : 2023-03-22 DOI: 10.1093/ijlct/ctad019

Youliang Lao, Shu-yu An, Yi Liang, Mengdi Yang, Tao Zhang, Shanshan Chen

引用次数: 0

Revolutionary Encapsulating Solution of Solar PV Panels: Vacuum glazing with zero H2O and O2 replacing EVA/PVB films 太阳能光伏板的革命性封装解决方案:零水零氧真空玻璃取代EVA/PVB薄膜

IF 2.3 4区工程技术

International Journal of Low-carbon Technologies Pub Date : 2023-03-22 DOI: 10.1093/ijlct/ctad010

Yingxi Tang

{"title":"Revolutionary Encapsulating Solution of Solar PV Panels: Vacuum glazing with zero H2O and O2 replacing EVA/PVB films","authors":"Yingxi Tang","doi":"10.1093/ijlct/ctad010","DOIUrl":"https://doi.org/10.1093/ijlct/ctad010","url":null,"abstract":"\u0000 Due to the shortage of energy in the world, solar energy has received widespread attention as an inexhaustible new green energy and as one of the main sources of power. Many researchers have studied the various materials and efficiencies of solar cells; however, how to extend the life of solar cells has rarely been studied. At present, the main encapsulating method of solar cells is to seal their surface with films such as EVA (Ethylene-Vinyl Acetate) and PVB Poly (vinyl butyral). The main problem that has been encountered is that the erosion of water and oxygen leads to a reduction in the service life and efficiency of solar cells. Inspired by the solar panels of satellites in space, a revolutionary vacuum-glazing encapsulating solution with zero H2O and O2 has been invented. The experimental results have nearly doubled the 30–35-year service life of solar cells, based on Deep Learning predictions. Therefore, the Building Integrated Photovoltaic (BIPV) can be used for the 70-year life of a building. The method is applicable to various solar cells, such as Crystalline Si cells, CIGS, CdTe and Perovskite film cells, etc. In practice, the main problems encountered in the encapsulation of vacuum glazing include the following: ensuring that the supporting pillar does not pierce the thin film PV and that it is placed accurately between the band gaps; ensuring that the emission of heat is not conducted in a vacuum; ensuring that the sealing sheet covers cover the exhausting port on the glass accurately; maintaining the vacuum degree for a long time; insulating the edge of the sealing materials, as well as other issues. The above problems have been solved perfectly through Machine Learning of Computer Vision and the design structure of the thin film PV.","PeriodicalId":14118,"journal":{"name":"International Journal of Low-carbon Technologies","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43157718","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

Heat and mass transfer in different concrete structures: a study of self-compacting concrete and geopolymer concrete 不同混凝土结构中的传热传质:自密实混凝土和地聚合物混凝土的研究

IF 2.3 4区工程技术

International Journal of Low-carbon Technologies Pub Date : 2023-03-22 DOI: 10.1093/ijlct/ctad022

A. Ebid, K. Onyelowe, Denise‐Penelope N. Kontoni, Alberto Quintana Gallardo, Shadi Hanandeh

{"title":"Heat and mass transfer in different concrete structures: a study of self-compacting concrete and geopolymer concrete","authors":"A. Ebid, K. Onyelowe, Denise‐Penelope N. Kontoni, Alberto Quintana Gallardo, Shadi Hanandeh","doi":"10.1093/ijlct/ctad022","DOIUrl":"https://doi.org/10.1093/ijlct/ctad022","url":null,"abstract":"\u0000 Thermal characteristics of concrete is one of the main topics in concrete technology researches. They were extensively studied since the 80's to predict the behavior of the concrete in fire and the performance of massive concrete. However, this topic was raised again after 2010 as a part of sustainable, energy effective and ecofriendly buildings studies. The aim of this research is to present a comparison between the thermal characteristics of self-compacted concrete (SCC) and the geopolymer concrete (GPC) using collected previous researches. More than fifty references were collected, sorted and analyzed in the last forty years. The results showed that (GPC) has better thermal characteristics such as thermal conductivity, heat capacity, fire resistance, while (SCC) has better mechanical properties such as compressive strength, early strength and elastic modulus. Besides that, from ecological point of view, partially replacing of ordinary Portland cement (OPC) with microencapsulated phase change materials (MPCM) such as fly ash, silica fume, slag, and metakaolin remarkably decreases the CO2 footprint of construction industry.","PeriodicalId":14118,"journal":{"name":"International Journal of Low-carbon Technologies","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46347477","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: 7

Power Transaction Game Algorithm with Micro Grid Based on Residual Regression Model 基于残差回归模型的微电网电力交易博弈算法

IF 2.3 4区工程技术

International Journal of Low-carbon Technologies Pub Date : 2023-03-22 DOI: 10.1093/ijlct/ctad031

Hongjie Li

{"title":"Power Transaction Game Algorithm with Micro Grid Based on Residual Regression Model","authors":"Hongjie Li","doi":"10.1093/ijlct/ctad031","DOIUrl":"https://doi.org/10.1093/ijlct/ctad031","url":null,"abstract":"\u0000 Direct transaction between microgrid and distribution network is the most common market transaction mode. With the rapid expansion of business scale, industry development and diversification of service types, it is easy to cause problems such as opaque transaction data between users and easy tampering of transaction data. In order to improve the trading ability of power market in microgrid group, a game algorithm of power trading with microgrid based on residual regression model is proposed. According to the power quality level and power sales strategy, a residual regression model is established to balance the characteristic quantity of electricity price. The quadratic function is used to solve the optimal selling strategy of power sales companies, and the threshold of equilibrium solution is analyzed. The supply and demand model of microgrid is established to optimize the decision variables of electricity price in power sales companies, and the fitness value is obtained by particle swarm optimization. The bidding strategy game model of microgrid power sales company is constructed, and the rules of power transaction settlement are set to realize the transaction settlement between microgrid and distribution network. The experimental results show that the electricity price is stable, the comprehensive income is high, the user income and cost income are moderate, and the profit is high. Thus, it is proved that the proposed method is economical and effective, and the economy of electric energy use is guaranteed while fully considering the self-interest of microgrid.","PeriodicalId":14118,"journal":{"name":"International Journal of Low-carbon Technologies","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48682941","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