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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 Modeling Biogas plant design Optimization |
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 http://hdl.handle.net/123456789/12204 |
Appears in Collections: | College of Engineering
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