检索结果-内蒙古大学图书馆

Techno-economic study of a photovoltaic power plant besides the railway track for rural uses in Bangladesh

e-Prime - Advances in Electrical engineering, Electronics and Energy 2023年 5卷

作者： Kowsar, Abu Naima, Foyzunnesa Rana, Md Tasnim Haque, Nawshad Alam, Firoz Institute of Fuel Research and Development (IFRD) Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhaka Bangladesh Department of Electrical and Electronic Engineering University of Dhaka Dhaka Bangladesh Pilot Plant and Process Development Centre Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhaka Bangladesh Commonwealth Scientific and Industrial Research Organisation (CSIRO) Melbourne Australia School of Engineering (Aerospace Mechanical and Manufacturing) RMIT University Melbourne Australia

Photovoltaic (PV) energy has emerged as a beneficial source when considering several factors, such as clean power generation, the reduction of glasshouse gas emissions, and the cost-competitiveness of power supply compared to other energy sources. Bangladesh is utilising rooftop areas for PV installations for homes, but ground-mounted installations cannot fully utilise this promising source due to extreme land constraints. If PV systems could be installed along the embankment of a railway track, it would provide a unique opportunity for renewable power generation. Thus, the aim of the study is to conduct a techno-economic study of a grid-connected photovoltaic plant besides the railway track for rural applications in Bangladesh. The PVsyst modelling tool has been utilised to investigate the performance of a 128 kW power plant. The proposed plant has an annual output of 186.3 MWh, a capital cost of US$124,688, an annualised cost of US$4,748, a levelized cost of US$0.052/kWh, a performance ratio of 77.3%, and a payback period of 8.4 years. In its 25-year lifespan, the facility may cut CO2 emissions by 2,185 tnes. The study demonstrates the possibility of multi-megawatt solar power generation along the railway tracks throughout the country. The findings of this study can be used to enhance solar power generation in Bangladesh and other countries, especially where land is scarce. © 2023

关键词： CO2 emissions Photovoltaic Power generation Railway track Techno-economic study

来源：评论

学校读者我要写书评

暂无评论

Efficient Extraction of Alkali and Alkaline Earth Metals from Marine Biomass-Derived Carbon for Use as an Alternative to Traditional Coal or Coke Reductants in Ironmaking

SSRN

引用

SSRN 2023年

作者： He, Da Sakai, Ryo Saito, Koji Kato, Toru Kosugi, Chika Yi, Hyeonseok Shimohara, Takaaki Nakabayashi, Koji Ko, Seunghyun Miyawaki, Jin Yoon, Seong-Ho Interdisciplinary Graduate School of Engineering Sciences Kyushu University Fukuoka816-8580 Japan Nippon Steel Research Institute Corporation Tokyo100-0005 Japan Environment and Process Research Department The Japan Research and Development Center for Metals Tokyo105-0003 Japan Advanced Technology Research Laboratories Nippon Steel Corporation Chiba293-8511 Japan Institute for Materials Chemistry and Engineering Kyushu University Fukuoka816-8580 Japan Korea Republic of

Pyrolysis of marine biomass (MB) to create marine biomass-based carbon materials (MBCs) for coal replacement in ironmaking is a renewable solution. In this study, we systematically examined pyrolysis processes and performed elemental composition analyses of MB and MBC. The results revealed that MBC contained 12.5–25.5 mass% of alkali and alkaline earth metals (AAEMs). As the pyrolysis temperature increased, some of these AAEMs underwent physical phase changes. Subsequently, we applied CO2 aeration washing or acetic acid washing to eliminate AAEMs from MBC, reducing potential hazards in the blast furnace. Characterization results suggested that both post-processes effectively removed AAEMs from MBC, reducing the average content of Na and K to 0 mass%, Ca to 1.4 mass%, and Mg to 1.9 mass%. The Cl content was also reduced to 0.1 mass%. After removing the AAEMs, the final carbon content of the MBCs according to ultimate analysis was as high as 90.8 mass% (dry ash free basis) with a minimum ash content of 6.4 mass% (dry basis). Comparison with commercial coal products showed that both carbon and ash contents were superior to most coal samples, suggesting that the treated MBCs are of sufficient quality to replace traditional cokes. © 2023, The Authors. All rights reserved.

关键词： Carbon

来源：评论

学校读者我要写书评

暂无评论

A short review: Chemo-catalytic CO₂ insertion in amine and amino alcohols to produce linear and cyclic carbamates

Tetrahedron Green Chem

引用

Tetrahedron Green Chem 2023年 2卷

作者： Kondawar, Sharda Patil, Chetana Raylu, Sadhana Rode, Chandrashekhar Environmental Material Division CSIR-National Environmental Engineering Research Institute Nehru Marg Nagpur 440 020 India Chemical Engineering and Process Development Division CSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pashan Pune 411008 India

The adverse effect of carbon dioxide occurred in past decade on environment, led researchers to use CO2 as a C1 building block for the synthesis of various commodity chemicals. Most of the drug molecules and polymers ...

The adverse effect of carbon dioxide occurred in past decade on environment, led researchers to use CO₂ as a C1 building block for the synthesis of various commodity chemicals. Most of the drug molecules and polymers have back bone of carbon chain which provides great opportunity to researchers, to make use of CO₂ as an abundant and renewable source of carbon. Chemo-catalytic synthesis of industrially important cyclic and open chain carbamate using amino alcohol/alcohol and amine in presence of CO₂ as carbonylating agent has got much more attention in recent years. This review focuses on the literature survey from 1986 to 2022 on carbamate synthesis and provides clear idea about prerequisite active sites in catalyst for the activation of CO₂ which is a major challenge. The details of mechanism proposed for the chemo-catalytic pathway has been discussed in detail in order to understand and design the novel and efficient catalyst system in near future in this demanding research field. © 2023

关键词：

来源：评论

学校读者我要写书评

暂无评论

Recent advances in sustainable extraction of plant pigments from fruit and vegetable peel waste for smart packaging applications in food freshness monitoring

Food and Humanity

引用

Food and Humanity 2025年 5卷

作者： Deotale, S. Bhanu Prakash Reddy, N. Vivek, K. Rajam, R. Gururaj, P.N. Thivya, P. Department of Chemical Engineering Visvesvaraya National Institute of Technology Maharashtra Nagpur 440010 India Department of Irrigation and Command Area Development Government of Telangana Telengana 500 022 India Department of Food Process Engineering National Institute of Technology (NIT) Odisha Rourkela 769008 India Department of Food Technology Kalasalingam Academy of Research and Education (KARE) Tamil Nadu Virudhunagar 626126 India Department of Food Process Technology National Institute of Food Technology Entrepreneurship and Management (NIFTEM-T) Tamil Nadu Thanjavur 613005 India

The increasing volume of fruit and vegetable peel waste (FVPW), a by-product of rising horticultural production and processing, presents a significant opportunity for value addition in food technology. Rich in bioactive compounds such as anthocyanins, betalains, carotenoids, and chlorophylls, FVPW serves as a promising source of natural pigments. This review focuses on the extraction of these pigments using conventional (solvent extraction, maceration) and advanced techniques (ultrasound-assisted, microwave-assisted extraction), and their subsequent application in intelligent food packaging systems. Specifically, these pigments can function as pH-sensitive colorimetric indicators to monitor spoilage and freshness in perishable foods. The integration of FVPW-derived pigments into biopolymer-based films offers a dual benefit, enhancing packaging functionality while contributing to environmental sustainability by reducing agro-industrial waste. This review underscores the potential of pigment-based sensors from FVPW in developing next-generation active and smart packaging solutions. Utilizing FVPW pigments in such innovations can help reduce food waste, minimize losses, and reduce their environmental impact. © 2025 Elsevier B.V.

关键词： Freshness indicators Fruit and vegetable peel waste PH indicator Pigments Smart packaging

来源：评论

学校读者我要写书评

暂无评论

IoT based real-time water quality monitoring system in water treatment plants (WTPs)

引用

Heliyon 2024年第23期10卷 e40746页

作者： Forhad, H.M. Uddin, Md. Ripaj Chakrovorty, R.S. Ruhul, A.M. Faruk, H.M. Kamruzzaman, Sarker Sharmin, Nahid Jamal, AHM Shofiul Islam Molla Haque, Md. Mezba-Ul Morshed, AKM M Pilot Plant and Process Development Centre (PP&PDC) Bangladesh Council of Scientific & Industrial Research (BCSIR) Dhaka 1205 Bangladesh Institute of National Analytical Research and Service (INARS) Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh Pagla Sewage Treatment Plant Division WASA Dhaka Bangladesh Department of Mechanical Engineering Bangladesh University of Engineering and Technology (BUET) Dhaka Bangladesh

This study presents the development and implementation of an Internet of Things (IoT)-based real-time water quality monitoring system tailored for water treatment plants (WTPs). The system integrates advanced sensor technologies to continuously monitor key water quality parameters such as pH, dissolved oxygen (DO), total dissolved solids (TDS), and temperature. Data collected by these sensors is transmitted through a robust communication network to a centralized monitoring platform that utilizes cloud-based storage and analytics. The system's design includes a PLC-based control mechanism, allowing for flexible setup modifications and the easy addition of new monitoring parameters. The IoT-based system, powered by a low-energy 29-W configuration, offers accurate and reliable data with a minimal error margin of 0.1–0.2 across various parameters. The research highlights the system's ability to provide real-time alerts, historical data logging, and remote monitoring, all of which contribute to enhanced operational efficiency, proactive maintenance, and informed decision-making. This innovative approach to water quality management not only improves the effectiveness of WTP operations but also ensures environmental sustainability and public health safety. The study underscores the significant potential of IoT technologies in revolutionizing water quality monitoring practices. © 2024 The Authors

关键词： Internet of things (IoT) Programmable logic controller (PLC) Real-time monitoring Water quality

来源：评论

学校读者我要写书评

暂无评论

Optimizing textile dyeing and finishing for improved energy efficiency and sustainability in fleece knitted fabrics

引用

Cleaner Energy Systems 2024年 9卷

作者： Chowdhury, Miraduzzaman Babu, Mohammad Shohag Hossain, Shahadat Mia, Rony Kabir, Shekh Md. Mamun Department of Wet Process Engineering Bangladesh University of Textiles 92 Shaheed Tajuddin Ahmed Avenue Tejgaon Industrial Area Dhaka 1208 Bangladesh Department of Textile Engineering National Institute of Textile Engineering and Research University of Dhaka Dhaka 1000 Bangladesh Department of Finishing Epyllion Group (Textile Division) Gazipur 1703 Bangladesh Department of Research and Development Epyllion Group (Textile Division) Gazipur 1703 Bangladesh

In the industrial range, optimizing dyeing and finishing energy is important to control environmental pollution. In the Dyeing stage to finishing of textiles gas, electricity, steam, and water are used 260 m³/hour, 591 kWh, 1.2 pounds/hour, and 8.69 tons/hour respectively. If textile professionals do not match the desired shade and quality of fabrics with the use of minimal resources the energy cost will be multiple times higher. This study investigates the change in the shade of fleece knitted fabrics from the dyeing unload to the finish stage and assumes a dyeing recipe adjustment, focusing on the impact of optimized dyeing and finishing processes. Also, it focuses on qualitative changes in properties across various color variations. Identical dyeing recipes for light, medium, and dark shades of red, blue, and navy. Properties such as GSM (grams per square meter), width, color strength, shade (darker/lighter, red/green, blue/yellow), shrinkage, spirality, pilling, bursting strength, and color fastness were analyzed. Dyeing to post-finishing, an increase in color strength (K/S) values was observed, with examples including minimum increases from 2.9 to 3.18 for light red and maximum from 19.3 to 22.9 for dark navy shade. Darker shades (DL*) were observed after stenter 1st pass (among all variants, red: 1.2 % to 8.1 %, blue: 4.5 % to 6.7 %, navy: 1.6 % to 2 %), while lighter shades (DL*) were observed following sueding and napping (among all variants, red: 3.1 % to 19.7 %, blue: 11.8 % to 19.7 %, navy: 14.8 % to 27.6 %). Greenish (Da*) and yellowish (Db*) tones are prominent across all colors in the finishing stages. Besides, other properties shrinkage, spirality, pilling, bursting strength, and color fastness significantly changed. These findings offer valuable guidance for dyeing professionals aiming to achieve the desired adjustment of shades that match the quality standard and produce sustainable fleece fabrics. To compensate for the shade lightening t

关键词： Dyeing recipe adjustment Environmental pollution Optimizing dyeing and finishing Sustainable fleece fabric

来源：评论

学校读者我要写书评

暂无评论

Fabrication of a Novel S-Scheme Bioac1-Xbrx/Biobr Photocathode with Ov for Tc Degradation and Electricity Generation in the Z-S-Scheme Photocatalytic Fuel Cell

SSRN

引用

SSRN 2023年

作者： Yu, Tingting Yang, Bing Zhang, Rong Yang, Chenyu Arramel Jiang, Jizhou School of Environmental and Chemical Engineering Jiangsu Ocean University Lianyungang222005 China School of Environmental Ecology and Biological Engineering Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization Ministry of Education Novel Catalytic Materials of Hubei Engineering Research Center Wuhan Institute of Technology Wuhan430205 China Nano Center Indonesia Jalan Raya PUSPIPTEK Banten South Tangerang15314 Indonesia

In comparison with traditional oxidation technology, the photocatalytic fuel cell system (PFC) is an efficient and clean wastewater treatment technology. The construction of heterojunction is an effective method to improve the efficiency of photogenerated electron and hole separation. Therefore, in this work, a S-scheme BiOAc1-xBrx/BiOBr wtih oxygen vacancy (OV) was used as the photocathode and the Z-scheme TiO2/GO/g-C3N4 as the photoanode to achieve simultaneous degradation of tetracycline hydrochloride (TC) in the two chambers. When the molar ratio of Br/Bi is about 0.8 (x=0.8), pH=2 and concentration is 60 mg·L−1, the photocathode degradation rate of TC reaches 96.33% (120 min), which is 5.29 times and 3.76 times that of pure BiOBr and pure BiOAc. The addition of a small amount of persulfate has an obvious effect on improving conductivity. The current density is increased to 4.17 uW·cm−2 and the voltage is 38.20 mV, which is 1.5 times than the original. The results showed that the ·OH, ·O2- were produced during degradation and the electron generation, transport and pollutant degradation mechanism in the PFC were proposed. The intermediate substances of TC degradation were analyzed by HPLC-MS and UPS, and the optimal degradation path was calculated by density functional theory (DFT). Therefore, this work was feasible to achieve efficient degradation of wastewater pollutants and the generation of hydrogen and electricity. © 2023, The Authors. All rights reserved.

关键词： Bromine compounds

来源：评论

学校读者我要写书评

暂无评论

Optimized and Non Ti-Site Doped Synthesis of Lithium Titanate by Mechanochemical Method

SSRN

引用

SSRN 2024年

作者： Zhao, Wei Lin, Daoyong Liu, Zhifu Cao, Lei Zhao, Jingjun Liu, Yue Li, Da Ma, Guanxiang China University of Petroleum Beijing102249 China National Engineering Research Center of Green Recycling for Strategic Metal Resources Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China China Minmetals Corporation Beijing100027 China Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341000 China Ningxia Institute of Science and Technology for Development Strategy and Information Yinchuan750000 China Kunming University of Science and Technology China

The Li2CO3-ammonia-ballmilling synthesis system of Li4Ti5O12 (LTO) was optimized and doped Li and O by theirs adjacent elements Mg and F respectively. The ball to feeding weight ratio and ball milling times can affect the pressure and temperature distribution in ball mill, and then, the distribution of Li source, the hydrolysis rate of Ti source and the interaction between Li species and Ti species. The pH can result in the different nucleophilic / electrophilic Ti hydrolysis path and its hydrolysis condensation degree. The temperature programmed calcination is beneficial to the formation of the middle state (Li2TiO3) while not TiO2 impurity phase, obtaining the high quality LTO samples. Both Mg doping and F doping would be advantaged to prepare the LTO samples with higher crystallinity, smaller particle size and uniform morphology related to theirs effectively controlling the hydrolysis and condensation degree of Ti source, the number of crystal nucleus and the particle size. The initial first discharged capability of Mg doped LTO (LTO-Mg) and F doped LTO (LTO-F) reach to 152.4 mAh/g and 163.1 mAh/g at 5 C respectively, corresponding 32.4% and 41.7% enhancing compared to LTO (115.1 mAh/g) due to the shorter migration path of Li+ and smaller polarization. Moreover, the discharge voltage of LTO-Mg decreases from regular 1.5 V to 1.3 V (about 13.3% reductions). © 2024, The Authors. All rights reserved.

关键词： Lithium compounds

来源：评论

学校读者我要写书评

暂无评论

Dual activation pathways based on OH-functionalized alk-Ti₃C₂ MXene/RuO_x boosting the hydrogen generation

引用

Chinese Chemical Letters 2025年第8期36卷

作者： Wu, Chongbei Wang, Benzhi Li, Xuan Gu, Jiaxuan Wu, Yihan Zhao, Zhe Jia, Pengfei Jiang, Jizhou Hebei Key Laboratory of Man-machine Environmental Thermal Control Technology and Equipment Hebei Center for Industrial Energy-saving and Pollution Control Research Hebei Vocational University of Technology and Engineering Xingtai 054000 China School of Material Science and Engineering Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Wuhan Institute of Technology Wuhan 430205 China School of Mechanical Engineering and Institute of Advanced Machinery & Technology Sungkyunkwan University 2066 Seobu-ro Suwon 16419 South Korea

A meticulous design of the local environment at the interface between active species and the support, aimed at optimizing the adsorption of H2O molecules and BH4− anion, offers an ideal strategy for enhancing hydrogen... 详细信息

A meticulous design of the local environment at the interface between active species and the support, aimed at optimizing the adsorption of H₂O molecules and BH₄⁻ anion, offers an ideal strategy for enhancing hydrogen generation via NaBH₄ hydrolysis through dual activation pathways. Theoretical predictions based on d-band center analysis and electron transfer calculations suggest that introducing -OH functional groups induce charge redistribution, enhancing charge concentration on alk-Ti₃C₂ and facilitating the adsorption and activation of dual active species, H₂O molecules and BH₄⁻ anion. Inspired by these predictions, the optimized alk-Ti₃C₂/RuO_x catalyst demonstrates the highest catalytic activity, achieving a hydrogen generation rate (HGR) of 9468 mL min⁻¹ g_cat.⁻¹. Both experimental data and theoretical analyses confirm that the -OH functional groups promote charge enrichment on alk-Ti₃C₂, optimizing the adsorption of H₂O molecules and BH₄⁻ anion, and reducing the dissociation energy barrier of the *OH[sbnd]H-TS intermediate. This dual activation pathways mechanism lowers the activation energy for NaBH₄ hydrolysis, significantly enhancing the HGR performance. These findings, guided by theoretical insights, establish alk-Ti₃C₂/RuO_x as an efficient catalyst for NaBH₄ hydrolysis and provide a strong foundation for future hydrogen generation catalyst designs. © 2025

关键词： Alk-Ti3C2/RuOx Catalytic mechanism Dual activation pathways NaBH4 hydrolysis Theoretical calculation

来源：评论

学校读者我要写书评

暂无评论

Electrocatalytic ammonia synthesis catalyzed by mesoporous nickel oxide nanosheets loaded with Pt nanoparticles

引用

Chinese Journal of Catalysis 2022年第5期43卷 1371-1378页

作者： Wei Xiong Min Zhou Hao Li Zhao Ding Da Zhang Yaokang Lv Key Laboratory for Green Chemical Process(Ministry of Education) Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationHubei Key Laboratory Of Novel Reactor&Green Chemical TechnologySchool of Chemistry and Environmental EngineeringWuhan Institute of TechnologyWuhan 430205HubeiChina Department of Physics Technical University of DenmarkLyngby 2800Denmark The State Key Laboratory of Refractories and Metallurgy Institute of Advanced Materials and NanotechnologyWuhan University of Science and TechnologyWuhan 430071HubeiChina Changjiang River Scientific Research Institute Wuhan 430071HubeiChina College of Chemical Engineering Zhejiang University of TechnologyHangzhou 310014ZhejiangChina

Owing to its cost‐effectiveness and adjustable eight‐electron distribution in the 3d orbital,nickel oxide(NiO)is considered an effective electrocatalyst for an ambient electrochemical nitrogen reduction reaction(NRR).However,because of the low conductivity of the transition metal oxide electrocatalyst,its application in this field is *** this study,we found that the doping of NiO nanosheets with a small amount(3–10 nm)of Pt nanoparticles(Pt/NiO‐NSs)leads to considerable improvements in the Faradaic efficiency(FE)and NH_(3) yield compared with those obtained using pure NiO,breaking the common perception that commercial Pt‐based electrocatalysts demonstrate little potential for NRR due to their high hydrogen evolution *** a 0.1 mol/L Na_(2)SO_(4) solution at−0.2 V ***,a typical Pt/NiO‐2 sample exhibits an optimum electrochemical NH_(3) yield of 20.59μg h^(–1)mg^(–1)*** an FE of 15.56%,which are approximately 5 and 3 times greater,respectively,than those of pure NiO nanosheets at the same applied potential.X‐ray photoelectron spectroscopy analysis revealed that Pt in Pt/NiO‐NSs exist as Pt0,Pt^(2+),and Pt^(4+)and that high‐valence Pt ions are more electropositive,thereby favoring chemisorption and the activation of N2 *** function theory calculations showed that the d‐band of Pt nanoparticles supported on NiO is significantly tuned compared to that of pure Pt,affording a more favorable electronic structure for *** results of this study show that Pt can be an effective NRR electrochemical catalyst when loaded on an appropriate *** importantly,it provides a new synthetic avenue for the fabrication of highly active Pt‐based NRR electrocatalysts.

关键词： Platinum nanoparticles NiO nanosheets Nitrogen reduction reaction Electrocatalysis

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：