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Preparation of activated carbon from fly ash and its application for CO2 capture
Yahia Abobakor Alhamed,Sami Ullah Rather,Ahmad Hasan El-Shazly,Sharif Fakhruz Zaman,Mohammad Abdulrhaman Daous,Abdulrahim Ahmad Al-Zahrani 한국화학공학회 2015 Korean Journal of Chemical Engineering Vol.32 No.4
Power and desalination plants are one of the main anthropogenic sources for CO2 generation, which is oneof the key elements to cause greenhouse gas effect and thus contribute to the global warming. Fly ash (FA) generated indesalination and power plants was converted into activated carbon (AC) treated with KOH at higher temperature andtested for CO2 capturing efficiency. Morphological characteristics of FA such as BET specific surface area (SSA), porevolume, pore diameter, and pore size distribution (PSD) were performed using N2 adsorption isotherm. CO2 adsorptioncapacity and adsorption isotherms of CO2 over AC were measured by performing thermogravimetric analysis atdifferent temperatures. BET SSA of 161m2g−1 and adsorption capacity of 26mg CO2/g AC can be obtained by activationat KOH/FA ratio of 5 at 700 oC and activation time of 2 h. Therefore, great potential exists for producing AC fromFA, which will have the positive effect of reducing the landfill problem and global warming.
A Numerical Kano Model for Compliance Customer Needs with Product Development
Rashid, Md. Mamunur,Tamaki, Jun'ichi,Sharif Ullah, A.M.M.,Kubo, Akihiko Korean Institute of Industrial Engineers 2011 Industrial Engineeering & Management Systems Vol.10 No.2
Functional form and dysfunctional form of Kano model are considered as customer need regarding attribute of product. Both functional and dysfunctional forms are: Like, Must-be Neutral, Live-with and Dislike. The answers of customer regarding a product of functional and dysfunctional forms have been applied for selection of customer needs regarding product attribute (Kano evaluation). Filling.up and returning the Questionnaires by the individuals are essential for determining Kano evaluation. But many Questionnaires have not been returned in that case. Moreover, many possible consumers could not get opportunity to fill-up questionnaire. These uncertain or unknown consumers' opinions are also essential for product development. The choices of Kano evaluations have been outlined by: Attractive, One-dimensional, Must-be, Indifferent and Reverse. In this study, choices of evaluation of unknown customer are considered uniform cumulative vector probability (scenario 1). This study is based on the Monte Carlo simulation method, concept of probability and Kano model. This model has also been tested for its soundness and found fairly consistent including existing Kano model (scenario 2) and case survey for headlight of bicycle (scenario 3).
A Numerical Kano Model for Compliance Customer Needs with Product Development
Md Mamunur Rashid,Jun"ichi Tamaki,A.M.M. Sharif Ullah,Akihiko KUBO 대한산업공학회 2011 Industrial Engineeering & Management Systems Vol.10 No.2
Functional form and dysfunctional form of Kano model are considered as customer need regarding attribute of product. Both functional and dysfunctional forms are: Like, Must-be Neutral, Live-with and Dislike. The answers of customer regarding a product of functional and dysfunctional forms have been applied for selection of customer needs regarding product attribute (Kano evaluation). Filling?up and returning the Questionnaires by the individuals are essential for determining Kano evaluation. But many Questionnaires have not been returned in that case. Moreover, many possible consumers could not get opportunity to fill-up questionnaire. These uncertain or unknown consumers" opinions are also essential for product development. The choices of Kano evaluations have been outlined by: Attractive, One-dimensional, Must-be, Indifferent and Reverse. In this study, choices of evaluation of unknown customer are considered uniform cumulative vector probability (scenario 1). This study is based on the Monte Carlo simulation method, concept of probability and Kano model. This model has also been tested for its soundness and found fairly consistent including existing Kano model (scenario 2) and case survey for headlight of bicycle (scenario 3).