Search Results - subject:"Process simulation"

Analyzing the efficient execution of in-store logistics processes in grocery retailing : the case of dairy products

Reiner, Gerald; Teller, Christoph; Kotzab, Herbert - In: Production and operations management : an international … 22 (2013) 4, pp. 924-939

Persistent link: https://www.econbiz.de/10009791616

Analyzing process uncertainty through virtual process simulation

Helquist, Joel H.; Deokar, Amit; Cox, Jordan J.; … - In: Business Process Management Journal 18 (2012) 1, pp. 4-19

Purpose – The purpose of this paper is to propose virtual process simulation as a technique for identifying and …/methodology/approach – Virtual process simulation involves the creation of graphical models representing the process of interest and associated tasks … allocation can be used to manage uncertainty. Findings – The example illustrates the benefits of utilizing virtual process …

Persistent link: https://www.econbiz.de/10014687920

Energy and exergy analysis of a five-column methanol distillation scheme

Sun, Jinsheng; Wang, Fan; Ma, Tingting; Gao, Hong; Wu, Peng - In: Energy 45 (2012) 1, pp. 696-703

In the present paper, a five-column heat integrated methanol distillation scheme is proposed with the aid of process … simulation and pinch analysis. Unlike the popular four-column (or 3 + 1 column) scheme, a medium-pressure column is added after …

Persistent link: https://www.econbiz.de/10011054302

Analysis of design variables for an efficient natural gas steam reforming process comprised in a small scale hydrogen fueling station

Lee, Deuk Ki; Koo, Kee Young; Seo, Dong Joo; Yoon, Wang Lai - In: Renewable Energy 42 (2012) C, pp. 234-242

Natural gas steam reforming process comprised in a small scale H2-fueling station for on-site hydrogen production was simulated and analyzed. The effects of process variables on the process efficiency of hydrogen production were investigated, and their optimum set point values were suggested to...

Persistent link: https://www.econbiz.de/10011044465

An investigation into the effects of an emissions trading scheme on forest management and land use in New Zealand

Adams, Thomas; Turner, James A. - In: Forest Policy and Economics 15 (2012) C, pp. 78-90

An econometric-process simulation model was constructed to investigate the effects of an Emissions Trading Scheme (ETS …

Persistent link: https://www.econbiz.de/10010573014

Ethylene separation by feed-splitting from light gases

Salerno, Daniel; Arellano-Garcia, Harvey; Wozny, Günter - In: Energy 36 (2011) 7, pp. 4518-4523

Separation of ethylene from light gas mixture is one of the most energy intensive separations in petrochemical processes, which uses distillation columns up to 100 m tall and containing over 100 trays due to very small differences in the relative volatilities and very large reflux ratios and...

Persistent link: https://www.econbiz.de/10011054221

Optimal design of distillation column using three dimensional exergy analysis curves

Khoa, T.D.; Shuhaimi, M.; Hashim, H.; Panjeshahi, M.H. - In: Energy 35 (2010) 12, pp. 5309-5319

This paper presents two main contributions. Firstly, a new exergy graphical method is proposed for optimal design of distillation column with minimum exergy lost. The method is applicable to both grass-root and retrofit cases, respectively. The effect of design and operating parameters of a...

Persistent link: https://www.econbiz.de/10010808726

Design and analysis of fuel ethanol production from raw glycerol

Posada, J.A.; Cardona, C.A. - In: Energy 35 (2010) 12, pp. 5286-5293

Three configurations for fuel ethanol production from raw glycerol using Escherichia coli were simulated and economically assessed using Aspen Plus and Aspen Icarus, respectively. These assessments considered raw glycerol (60 wt%) purification to both crude glycerol (88 wt%) and pure glycerol...

Persistent link: https://www.econbiz.de/10011055197

Conceptual model and evaluation of generated power and emissions in an IGCC plant

Pérez-Fortes, M.; Bojarski, A.D.; Velo, E.; Nougués, J.M. - In: Energy 34 (2009) 10, pp. 1721-1732

This work develops a design and operation support tool for an Integrated Gasification Combined Cycle (IGCC) power plant, which allows the efficiency and environmental issues of alternative process designs and feedstock to be assessed. The study is based on a conceptual model of an IGCC plant,...

Persistent link: https://www.econbiz.de/10010809843

Using expected values to simplify decision making under uncertainty

Durbach, Ian N.; Stewart, Theodor J. - In: Omega 37 (2009) 2, pp. 312-330

A simulation study examines the impact of a simplification strategy that replaces distributional attribute evaluations with their expected values and uses those expectations in an additive value model. Several alternate simplified forms and approximation approaches are investigated, with results...

Persistent link: https://www.econbiz.de/10005336425