Subhashis Das disputerer for ph.d-graden i ingeniørvitenskap og vil offentlig forsvare avhandlingen:
Mathematical modelling of bioenergy systems for stability analysis and parametric sensitivity.
Avhandlingen er tilgjengelig her
På grunn av koronautbruddet vil disputasen bli strømmet. Opptak av disputasen vil være tilgjengelig i en uke.
Because of the corona outbreak the defense will be streamed. A recording of the disputation will be available for one week.
Prøveforelesning / Trial lecture 19.03.21 kl. 10.15.
Prøveforelesningen har følgende tittel: Renewable energy, its challenges and role in fighting greenhouse effect
Disputas / Public defense 19.03.21 kl. 12.15.
Prøveforelesning og disputas vil bli strømmet her.
Trial lecture and public defense will be streamed here.
De som ønsker å opponere ex auditorio kan sende e-post til leder av disputasen, professor Raymond Kristiansen
Opponents ex auditorio should sign up to leader of defense by e-mail to professor Raymond Kristiansen
Short summary:
This thesis presents theoretical and experimental studies of continuous stirred tank bioreactors (CSTBR) leading to develop mathematical models for simulating bioprocesses. Biochemical processes use enzymes or microorganisms, given an optimal environment for their growth within a bioreactor turn biomass into various products. Environmental conditions (pH, dilution rate, temperature, substrate concentration, etc.) simultaneously affect the process and output. Due to concurrent influence of these conditions, a slight variation in one condition affects the microbial growth and process may stall. Knowledge of the system parameters range beyond which the biosystem stops functioning is critical for bioreactors efficiency. The developed models were used for stability analysis and parametric sensitivity CSBTR processes used for producing ethanol and biohydrogen etc. The results demonstrate quantitative analyse CSTBRs operation and can help in selecting control strategies for safe and economical utilisation of CSTBRs. Obtained information contributes to the field of bioenergy, design and optimisation of bioreactors.
Veiledere / Supervisors:
Hovedveileder:
Biveiledere:
Bedømmelseskomité / Evaluation committée:
Prøveforelesning og disputas ledes av prodekan, professor Raymond Kristiansen