Chemical and Process Engineering Research最新文献_第5页

HEAT AND MASS TRANSFER DUE TO DOUBLE DIFFUSIVE MIXED CONVECTION IN A PARALLEL PLATE REACTOR IN PRESENCE OF CHEMICAL REACTION AND HEAT GENERATION 平行板反应器中存在化学反应和产热时的双扩散混合对流传热传质

Chemical and Process Engineering Research Pub Date : 2015-01-01 DOI: 10.18488/JOURNAL.65/2015.2.2/65.2.17.29

S. Parvin, M. Alim, N. Hossain

{"title":"HEAT AND MASS TRANSFER DUE TO DOUBLE DIFFUSIVE MIXED CONVECTION IN A PARALLEL PLATE REACTOR IN PRESENCE OF CHEMICAL REACTION AND HEAT GENERATION","authors":"S. Parvin, M. Alim, N. Hossain","doi":"10.18488/JOURNAL.65/2015.2.2/65.2.17.29","DOIUrl":"https://doi.org/10.18488/JOURNAL.65/2015.2.2/65.2.17.29","url":null,"abstract":"The present paper aims to analyze numerically the heat and mass transfer for laminar double-diffusive mixed convection flow in a parallel plate reactor with heat generation and chemical reaction. The reactant fluid enters from the left inlet and exits from the right outlet. All solid walls of the reactor are assumed to be thermodynamically isolated. After entering the reactor, the fluid passes four heated cylinder. Two-dimensional continuity, momentum, energy and concentration equations govern the developed mathematical model. Galerkin finite element method with triangular grid discretization system is used to solve the governing non-dimensional equations. The aim of the investigation is to illustrate the effects of the energy expelled during the reaction, on velocity, the thermal field and concentration of the heat sensitive chemical. Numerical simulations are conducted for different combinations of chemical reaction parameter and heat generation parameter. Results are presented in terms of streamlines, temperature and concentration distributions. The results reveal that the heat and mass transfer rate strongly depend on the mentioned parameter.","PeriodicalId":9769,"journal":{"name":"Chemical and Process Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86964825","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

Evaluation of Some Chemical and Sensory Properties of Processed Cheese Analogue with Selected Vegetable Oils 选定植物油加工奶酪类似物的一些化学和感官特性评价

Chemical and Process Engineering Research Pub Date : 2015-01-01 DOI: 10.18488/journal.65/2015.2.6/65.6.75.85

K. Al-Ismail, Bara’h Al-Hiary, M. Al-Dabbas

引用次数: 6

PROCESS PARAMETRS AFFECTING THE HYDROGEN PRODUCTION BY WATER ELECTROLYSIS AND ELECTROLYSER CHARACTERISTIC 影响水电解制氢的工艺参数及电解槽特性

Chemical and Process Engineering Research Pub Date : 2015-01-01 DOI: 10.18488/JOURNAL.65/2015.2.1/65.1.1.16

B. Nabil, B. Romdhane, B. Radhouane, Chaouachi Béchir

引用次数: 26

Modeling a System of Rotating Biological Contactor (RBC) for Biodegradation of Phenol in Industrial Wastewater 旋转生物接触器(RBC)对工业废水中苯酚的生物降解系统建模

Chemical and Process Engineering Research Pub Date : 2015-01-01 DOI: 10.18488/journal.65/2015.2.5/65.5.59.74

K. Dagde, Beabu K. Piagbo

{"title":"Modeling a System of Rotating Biological Contactor (RBC) for Biodegradation of Phenol in Industrial Wastewater","authors":"K. Dagde, Beabu K. Piagbo","doi":"10.18488/journal.65/2015.2.5/65.5.59.74","DOIUrl":"https://doi.org/10.18488/journal.65/2015.2.5/65.5.59.74","url":null,"abstract":"A model for a 4-stage Rotating Biological Contactor (RBC) for the biodegradation of phenol from industrial wastewater has been developed using the mass conservation principles. The kinetics for biodegradation of phenol and oxygen utilization were obtained from literature under the same operating conditions. The systems of non-linear differential ordinary differential equations obtained were integrated numerically using the fourth-order Runge-Kutta algorithm adapted to a Visual Basic 6.0 computer program. Model predictions of 0.0505mg/l obtained for effluent phenol concentration, compares favorably well with the plant data of 0.05mg/l with a maximum deviation of 1.0%. A biodegradation of approximately 70mg/l at residence time of approximately 10hours, 56mg/l at residence time of approximately 8.5hours, 57mg/l at residence time of approximately 7.5hours, and 68mg/l at residence time of approximately 6.0hours with a constant oxygen concentration utilization of 0.087mg/l, were obtained from the first, second, third and fourth-stage respectively. Functional parameters such as retention time, rotational speed, respiratory coefficient and biomass concentration were simulated to study its effect with a view to obtain optimum efficiency.","PeriodicalId":9769,"journal":{"name":"Chemical and Process Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75007518","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

Study on the Factors Influencing Residential Location Choice of the Garments Workers of Mirpur, Dhaka City 达卡米尔普尔服装工人居住区位选择的影响因素研究

Chemical and Process Engineering Research Pub Date : 2014-01-01 DOI: 10.18488/journal.65/2014.1.6/65.6.73.86

Shammi Shawal, J. Ferdous

{"title":"Study on the Factors Influencing Residential Location Choice of the Garments Workers of Mirpur, Dhaka City","authors":"Shammi Shawal, J. Ferdous","doi":"10.18488/journal.65/2014.1.6/65.6.73.86","DOIUrl":"https://doi.org/10.18488/journal.65/2014.1.6/65.6.73.86","url":null,"abstract":"Bangladesh is a developing country with huge population and huge scarcity of resources. Its economy is largely dependent on ready-mate-garment industry. So garments industries as well as garments workers are very much important for our economy. Dhaka being the capital city, a large number of garment factories is situated here. But the majority of garment workers earn less than the living wage, which is the minimum requirement to provide a family with food, shelter and education. They can hardly find a suitable residence for them and are compelled to live in congested, unhygienic and sub-human condition. The development of a country is not possible by only developing the middle and upper class people depriving the lower class who occupy a major part of the economy. So, it’s the need of the day to solve the problems of the housing condition of the garments workers. Therefore, this study emphasizes on the factors influencing residential location choice of the garment workers of Dhaka city. The target group is the residents of Mirpur 1. House rent, availability of utility facilities, monthly household income, distance from workplace, social security, dependence on family decision, size of dwelling unit, communal living, availability of community facilities - these have been pointed out as important factors in residential location choice of the garment workers by questionnaire survey. The study also investigated the priority among the pointed factors so that it could help the policy makers and developers to take any types of housing development project for the workers. If we can ensure a better residence and better facilities for them, their potentiality will increase and in the long run we can reap greater benefit from them.","PeriodicalId":9769,"journal":{"name":"Chemical and Process Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84136870","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: 6

Equilibrium and Kinetic Modeling of Acid Red 88(Ar88) Biosorption by Ulva Reticulata 紫檀吸附酸性红88(Ar88)的平衡及动力学模拟

Chemical and Process Engineering Research Pub Date : 2014-01-01 DOI: 10.18488/JOURNAL.65/2014.1.3/65.3.19.31

A. Saravanan

{"title":"Equilibrium and Kinetic Modeling of Acid Red 88(Ar88) Biosorption by Ulva Reticulata","authors":"A. Saravanan","doi":"10.18488/JOURNAL.65/2014.1.3/65.3.19.31","DOIUrl":"https://doi.org/10.18488/JOURNAL.65/2014.1.3/65.3.19.31","url":null,"abstract":"Equilibrium, kinetics and thermodynamic studies on the removal of Acid Red (AR88) using Ulva reticulata have been investigated. In batch experiments, the parameters studied included the effect of the dye concentration, temperature, contact time, adsorbent dosage, pH. The pseudo-first-order and pseudo-second-order kinetic data were tested with experimental data. The optimum conditions were: pH 5, temperature 30oC, biomass size 0.5 mm and maximum metal uptake was 75.4 mg/g .Various thermodynamic parameters such as ∆Ho, ∆Go and ∆So were calculated indicating that the present system was spontaneous and endothermic process. The pseudo first and second order kinetic models were also applied to the experimental kinetic data obtained during Biosorption of AR88 and High correlation coefficients with low standard deviations favor the pseudo-second-order model for the present systems. The ability of Ulva reticulata to Biosorption AR88 in a packed column was investigated, as well. A glass column was used to conduct the experiments. At 20 cm (bed height), 5 ml/min (flow rate) and 100 mg/L (initial concentrations), ulva reticulata exhibited AR88 uptake of 88.65 mg/g. The Thomas model was used to predict the breakthrough curves.","PeriodicalId":9769,"journal":{"name":"Chemical and Process Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73372612","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

Electrochemical Study of Corrosion Inhibition Action of Sulphadoxine and Pyrimethamine on Mild Steel in Acidic Medium 磺胺嘧啶和乙胺嘧啶在酸性介质中对低碳钢缓蚀作用的电化学研究

Chemical and Process Engineering Research Pub Date : 2014-01-01 DOI: 10.18488/JOURNAL.65/2014.1.2/65.2.10.18

I. A. Akpan, N. O. Offiong

引用次数: 2

Fundamentals of Digital Image Processing and Basic Concept of Classification 数字图像处理基础与分类基本概念

Chemical and Process Engineering Research Pub Date : 2014-01-01 DOI: 10.18488/JOURNAL.65/2014.1.6/65.6.98.108

Shammi Shawal, Muhammad Shoyab, Suraiya Begum

引用次数: 31

Eccentric Connectivity Index of Some Special Molecular Graphs and Their R-Corona Graphs 一些特殊分子图及其r -电晕图的偏心连通性指数

Chemical and Process Engineering Research Pub Date : 2014-01-01 DOI: 10.18488/JOURNAL.65/2014.1.5/65.5.43.50

Yun Gao, L. Liang, Wei Gao

引用次数: 2

Response Surface Methodology (RSM) A Good Optimizer for Transesterification Reaction of Chrysophyllum Albidium Seed Oil To Chrysophyllum Albidium Oil Biodiesel 响应面法(RSM):黄菊花籽油酯交换制黄菊花油生物柴油的优化研究

Chemical and Process Engineering Research Pub Date : 2014-01-01 DOI: 10.18488/JOURNAL.65/2014.1.4/65.4.32.42

T. F. Adepoju

引用次数: 7