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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12204

Title: A coupled modeling of design and investment parameters for optimal operation of methane bioreactors: Attainable region concept approach
Authors: Neba, F. Abunde
Asiedu, Nana Yaw
Addo, Ahmad
Morken, John
Østerhus, Stein W.
Seidu, Razak
Keywords: Attainable regions
Reactor economics
Biogas plant design
Issue Date: Nov-2019
Publisher: Renewable Energy
Citation: Renewable Energy, 148
Abstract: Current practice to design methane bioreactors does not consider all degrees of freedom simultaneously, which raises question of global optimality. This study presents a model-based design framework, which simultaneously integrates process kinetics and business parameters into the design process, a key motivation for investors. Within the study, a methane bioreactor model is presented and kinetic models incorporating different economic feasibility indicators (PBP and BCR) are developed. The methane bioreactor model gives a good prediction of test data for digestion of diary manure and the natural patterns of payback period and benefit cost ratio are predicted. Stochastic stimulation is presented to include robustness in the design process and overall yield coefficients are illustrated for model dimensionality reduction. Two-dimensional attainable region is introduced as a reliable technique for defining limits of achievability as well as obtaining optimal methane bioreactor structures. Finally, a schematic model of the design process is established.
Description: This article is published in Renewable Energy and also available at DOI: 10.1016/j.renene.2019.10.089
URI: 10.1016/j.renene.2019.10.089
Appears in Collections:College of Engineering

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