International Journal of Chemical Reactor Engineering最新文献_第4页

Methyl-orange/reduced graphene oxide composite as the electrode material for the solid-state supercapacitor 作为固态超级电容器电极材料的甲基橙/还原氧化石墨烯复合材料

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-12-08 DOI: 10.1515/ijcre-2023-0068

Karsimran Singh, Amarjeet Kaur

{"title":"Methyl-orange/reduced graphene oxide composite as the electrode material for the solid-state supercapacitor","authors":"Karsimran Singh, Amarjeet Kaur","doi":"10.1515/ijcre-2023-0068","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0068","url":null,"abstract":"Abstract Herein, we have introduced the electrode material made up of a composite of an electrochemical active organic molecule (i.e. methyl orange (MO)) and reduced graphene oxide (rGO) composite. This composite is found to be a potential material for supercapacitor application due to the sustainability, redox reversibility of organic molecules, and good conductivity of rGO. For fabricating symmetric solid-state cell (MO/rGO//PVA/H2SO4//MO/rGO), polyvinyl alcohol–sulphuric acid (PVA/H2SO4) aqueous gel polymer electrolyte (GPE) has been sandwiched between the two MO/rGO electrodes. It was found that a MO/rGO based symmetric cell interfaced with a PVA/H2SO4 gel electrolyte has a specific capacitance of 166.79 F g−1 and an energy density of 11.58 Wh kg−1 at a power density of 6.25 kW kg−1. Here, good specific capacitance is the result of a combination of both electric double-layer capacitor (EDLC) and pseudo-capacitive behaviour observed in a fabricated cell. The specific capacitance is stable after 2500 cycles of charge and discharge, with an initial fade of 32 %. This synthesized material and fabricated device found its potential to be used for the supercapacitor application.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"7 9","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138586530","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

Efficiency and environmental stability of TiO2 based solar cells for green electricity production 基于二氧化钛的太阳能电池用于绿色发电的效率和环境稳定性

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-12-08 DOI: 10.1515/ijcre-2023-0117

Mahendra Singh, Deepak Singh, V. Mishra, Vijay Singh, Sunita Singh, Rahul Dev, Dhananjay Singh

{"title":"Efficiency and environmental stability of TiO2 based solar cells for green electricity production","authors":"Mahendra Singh, Deepak Singh, V. Mishra, Vijay Singh, Sunita Singh, Rahul Dev, Dhananjay Singh","doi":"10.1515/ijcre-2023-0117","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0117","url":null,"abstract":"Abstract Environmental sustainability and energy security are two major issues, which are globally attracting the attention of the scientists and researchers. The sustainable development goal (SDG-7) calls for sustainable and modern energy for all. Solar energy has great potential and it can be transformed in other usable forms through various energy harvesting technologies. The photovoltaic cell utilizes solar radiation to generate green electricity. Photovoltaic cells follow the mechanism of photon to electron conversion for electricity production. Recently, organic solar cell, which is a type of photovoltaic cells, has shown potential to overcome demerits faced by photovoltaic cell like low flexibility, weight and environmental biodegradability issues. Dye sensitized solar cell (DSSC) is a kind of the organic solar cell. A (DSSC) has been fabricated using Punica Granatum (pomegranate juice) as sensitizer. The maximum efficiency of the solar cell is observed to be 0.16 %. The effect of various climatic parameters the performance of fabricated dye sensitized solar cell has also been evaluated and reported.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"31 7","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138589902","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

CO2 adsorption behavior of a highly-microporous KOH-activated carbon obtained from rice husk waste: kinetic and equilibrium studies 稻壳废料制备的高微孔 KOH 活性炭的二氧化碳吸附行为：动力学和平衡研究

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-12-04 DOI: 10.1515/ijcre-2023-0052

F. Granados-Correa, E. Gutiérrez-Bonılla, Melania Jiménez-Reyes, G. Roa‐Morales, P. Balderas-Hernández

引用次数: 0

Numerical analysis of various shapes of lozenge pin-fins in microchannel heat sink 微通道散热器中不同形状菱形针翅的数值分析

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-09-11 DOI: 10.1515/ijcre-2023-0092

Injamamul Haque, Tabish Alam, Jagmohan Yadav, N. Gupta, Md Irfanul Haque Siddiqui, T. Siddiqui, Naushad Ali, Shivam Srivastava, Anil Singh Yadav, Abhishek Sharma, Rohit Khargotra, A. K. Thakur

{"title":"Numerical analysis of various shapes of lozenge pin-fins in microchannel heat sink","authors":"Injamamul Haque, Tabish Alam, Jagmohan Yadav, N. Gupta, Md Irfanul Haque Siddiqui, T. Siddiqui, Naushad Ali, Shivam Srivastava, Anil Singh Yadav, Abhishek Sharma, Rohit Khargotra, A. K. Thakur","doi":"10.1515/ijcre-2023-0092","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0092","url":null,"abstract":"Abstract Higher density heat flux is the major cause of damage to the electronic component; therefore, cooling such components are of the utmost importance to operate in a safe zone and to increase their life. For this purpose, Microchannel heat sinks (MHSs) are among the most practical methods for dissipating unwanted heat. In this regard, the novel lozenge-shaped pin-fins in the flow passage of the microchannel heat sink (MHS) have been designed and proposed to achieve higher cooling performance. Aspect ratios (λ = 0.30, 0.39, 0.52, 0.69, 1.00) of several lozenge-shaped pin-fins have been used into the design of MHS to investigate their impact on heat transmission and fluid flow characteristics. A three-dimensional model of MHS with a lozenge-shaped has been generated and simulated numerically in the following range of Reynolds numbers, starting from 100 to 900. Heat transmission and flow characteristics have been presented and discussed in detail. It has been found that introducing lozenge-shaped pin-fins in MHS has greatly improved cooling performance. The highest improvement in Nusselt number has been observed when aspect ratio (λ) of lozenge-shaped pin-fins was 1.00. The Nusselt number have been varied in the following ranges of 6.96–12.34, 6.97–12.72, 7.01–13.62, 7.09–14.43, and 7.12–15.26 at λ = 0.30, λ = 0.39, λ = 0.52, λ = 0.69, and λ = 1.0, respectively. In addition, a study of the thermohydraulic performance of the proposed lozenge-shaped pin-fins in the MHS found that this design is an effective means of lowering operating temperature.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47831314","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

Simulation investigation of the effect of heating temperature and porosity of porous media on the water evaporation process 加热温度和多孔介质孔隙率对水蒸发过程影响的模拟研究

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-08-30 DOI: 10.1515/ijcre-2023-0090

Licheng Wang, Yijing Lu, Wenwen Zhang, Zhou-Yi Yang

{"title":"Simulation investigation of the effect of heating temperature and porosity of porous media on the water evaporation process","authors":"Licheng Wang, Yijing Lu, Wenwen Zhang, Zhou-Yi Yang","doi":"10.1515/ijcre-2023-0090","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0090","url":null,"abstract":"Abstract In the study, carbon fiber as porous media, water and vapor as liquid and gas phases, respectively, the evaporation process of multiphase fluid in carbon fiber was explored based on the pore network model. The Micro-CT technology was adopted to reconstruct the structure of carbon fiber. The applicability of the CFD model adopted in the simulation was validated by experiment. Effect of heating temperature and porosity on the evaporation process was investigated in detail. The study found that at various heating temperatures, fluid temperature increases gradually with time, and tends to be constant when it reaches a certain temperature. When heating temperature is high, the constant temperature is large, the time to arrive the constant temperature is short. The liquid evaporation rate V e and the heat absorbed by the fluid every 0.5 s Q0.5 increase first, and decrease gradually when a maximum value is reached. When the heating temperature is high, the maximum that V e and Q0.5 can be obtained is also large, the required time is also short. In porous media with different porosity, fluid temperature rises to an approximate constant. V e and Q0.5 increase first, and decrease gradually after reaching a certain maximum value. The maximum values of V e and Q0.5 in porous media with porosity of 0.598 are the largest.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45580435","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

Indoor air quality control using lab scale air purifier tower 利用实验室规模的空气净化器塔控制室内空气质量

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-08-16 DOI: 10.1515/ijcre-2023-0043

R. Patel, A. Singh, Rathy Shankar, P. Khare, A. Thakur, V. Gole

{"title":"Indoor air quality control using lab scale air purifier tower","authors":"R. Patel, A. Singh, Rathy Shankar, P. Khare, A. Thakur, V. Gole","doi":"10.1515/ijcre-2023-0043","DOIUrl":"https://doi.org/10.1515/ijcre-2023-0043","url":null,"abstract":"Abstract Population and industrialization growth is the major reason for the indoor air quality depletion. So, air quality control in sensitive area is needed to avoid air pollution-based hazards. Small economical air pollutant controlling equipment may be helpful in indoor air quality control. Present work covers the performance study of lab scale air purifier tower, 37 × 37 × 140 cm3 (LSAPT) for the removal of PM2.5, PM10 and TVOC from the polluted air in a control volume (75 m3). LSAPT follow 3 step pollutants removal procedure in which coarse particles are separated by prefilter and the fine particles are separated with the help of negative ioniser and activated carbon beds. More than 99 % of percentage of PM2.5, PM10 and TVOC removal are achieved within 100 s for initial pollutants loading of PM2.5: 1000 μg/m3 & PM10: 1000 μg/m3 and TVOC: 7.2 mg/m3 respectively. The assessment study suggests the proposed lab scale air purifier tower can be used continuously up to 10–15 days without much variation in pollutants removal efficacy. Approximately 7700 ₹ (92.40 US$) is used as installation cost and 30 ₹/hr (0.36 US$/hr) is used as consumable energy cost.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48884593","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

Temperature sensor location for the implementation of cascade control schemes in distillation columns: an approach based on multiscale time series analysis 用于实现精馏塔串级控制方案的温度传感器位置：一种基于多尺度时间序列分析的方法

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-08-14 DOI: 10.1515/ijcre-2022-0111

J. G. Moguel-Castañeda, Rafael Gomez-Rodriguez, H. Puebla, E. Hernandez‐Martinez

{"title":"Temperature sensor location for the implementation of cascade control schemes in distillation columns: an approach based on multiscale time series analysis","authors":"J. G. Moguel-Castañeda, Rafael Gomez-Rodriguez, H. Puebla, E. Hernandez‐Martinez","doi":"10.1515/ijcre-2022-0111","DOIUrl":"https://doi.org/10.1515/ijcre-2022-0111","url":null,"abstract":"Abstract In this work, the application of multiscale analysis to evaluate the sensitivity of the dynamic responses of the trays in a distillation column exposed to external disturbances is explored. This sensitivity allows for the identification of the tray where the temperature sensor improves the performance of a composition-temperature type cascade controller. To implement the proposed methodology, synthetic time series are generated for each plate of the column, which is subsequently analyzed using the multiscale rescaled range (R/S) analysis. Three case studies were evaluated (binary mixtures, azeotropic mixture and ternary mixture), finding that the highest values of the Hurst exponent correlate with the areas of greatest sensitivity of the column. To corroborate this result, a composition-temperature cascade control scheme was implemented, evaluating the temperature sensor in each plate of the column, identifying that the zone of greatest sensitivity determined with the multiscale analysis corresponds to the best performance of the controller. Therefore, our results show that the proposed methodology represents an easy-to-implement alternative that provides information on the most suitable zone for the placement of temperature sensors to improve the performance of cascade control in a pre-designed distillation column.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42327218","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

An experimental evaluation of green surfactants to stabilize silica nanofluids in saline conditions and its application in CO2 absorption 绿色表面活性剂在盐水条件下稳定二氧化硅纳米流体的实验评价及其在CO2吸收中的应用

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-08-10 DOI: 10.1515/ijcre-2022-0241

Alpana Singh, Krishna Raghav Chaturvedi, Tushar Sharma

{"title":"An experimental evaluation of green surfactants to stabilize silica nanofluids in saline conditions and its application in CO2 absorption","authors":"Alpana Singh, Krishna Raghav Chaturvedi, Tushar Sharma","doi":"10.1515/ijcre-2022-0241","DOIUrl":"https://doi.org/10.1515/ijcre-2022-0241","url":null,"abstract":"Abstract Conventionally, it has been established that the salt ions have the tendency to reduce the surface charge of nanoparticles (NPs) and render them unstable, regulating the stability of nanofluids in a saline environment has been an issue for a long time. To overcome this problem, our work presents the application of a novel green surfactant obtained from Fenugreek seeds of an anionic nature for use as a stabilizing agent for 0.1 wt% silica nanofluids prepared using in DI water. To prevent phase separation, it is imperative to stabilize silica nanofluid solution during their use for subsurface applications. Thus, salt tolerant nanofluids can be prepared and utilized for further applications in enhanced oil recovery and carbon storage etc. The surfactant was extracted from fenugreek seeds by using Soxhlet extraction technique. The liquid solution of extracted surfactant thus derived was dried in hot air oven in order to get the powdered surfactant. The results obtained from dynamic light scattering and zeta-potential, the use of the green surfactant, even in limited concentration (0.2 wt%) not only increases the stability of the nanofluid (from 2 to 12 h) but also lowers the influence of salt, if it is present in moderate concentration (up to 2 wt% NaCl). In addition, when 4 wt% NaCl is dissipated in the solution, the presence of surfactant allows the nanofluid to remain stable for up to 4 h. Furthermore, the surfactant-enriched silica NPs showed higher CO2 absorption than conventional NPs due to higher surface area and better bubble breakage, paving the way for future field deployment of green-surfactant stabilized silica nanofluids for gas storage and enhanced oil recovery applications.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45900207","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

Single and multi-objective dynamic optimization study of an industrial scale fed batch reactor 工业规模间歇投料反应器单目标和多目标动态优化研究

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-08-07 DOI: 10.1515/ijcre-2023-0009

Bhowmick Patidar, Nitin U. Padhiyar

引用次数: 0

Influence of different influence parameters on mixing characteristics of silicon particles in cassette 不同影响参数对硅颗粒在盒内混合特性的影响

IF 1.6 4区工程技术

International Journal of Chemical Reactor Engineering Pub Date : 2023-08-04 DOI: 10.1515/ijcre-2022-0217

Haifeng Fang, Han-xiao Sun, MingQiang Wang, R. Liu, Zheng Rong

{"title":"Influence of different influence parameters on mixing characteristics of silicon particles in cassette","authors":"Haifeng Fang, Han-xiao Sun, MingQiang Wang, R. Liu, Zheng Rong","doi":"10.1515/ijcre-2022-0217","DOIUrl":"https://doi.org/10.1515/ijcre-2022-0217","url":null,"abstract":"Abstract The numerical simulation length of the cassette model is determined by studying the effects of the cassette frame rotated alone and the rotated together with the agitator on mixing under different cassette lengths. The effects of different rotating speed, filling ratio of silicon particles, shape and number of agitators on the mixing characteristics of silicon particles in the cassette are studied when the outer frame of the cassette rotated alone and the cassette rotated together with the agitator. The mixing degree is quantitatively analyzed by particle trajectory, mixing index and rate, and the optimum working conditions of each influencing parameter are obtained. The results show that considering the computation time and the influence of the two motion modes on the mixing index and rate, the numerical simulation length of the cassette model is 115 mm. In order to obtain the best mixing effect and mixing speed, it is recommended that the rotating speed of the cassette is 8.91 rad/s, the filling rate is 23.60 %, and the shape of the agitator is rectangular and the number is 6. When the cassette and agitator rotate together, the filling rate has little effect on particle mixing. Considering the production efficiency, mixing effect and rate, as well as the stability of mixing, the recommended speed is 4.08 rad/s, the filling rate is 41.40 %, and the rectangular shape and number of six agitators are ideal choices.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"0 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66992995","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