Framework diagram of the project

Exergy efficiency based design and analysis of utilization pathways of biomasses

Evaluation of different utilization pathways of biomasses

Objective

This project focuses on exergy efficiency based design and analysis of utilization pathways of biomasses.

Background

Fossil energy depletion and environmental pollution are two major problems that greatly plagued the world, and "energy-saving emission reduction" has become the focus of attention. Biomass energy is a CO2-zero energy that does not interfere with the global carbon itself. However, if the biomass is not used effectively, it will cause serious environmental pollution. Therefore, the utilization of biomass has triple advantage of energy conservation, emission reduction and resource utilization. However, there are many problems such as more routes, complicated way and the lack of scientific criteria.

The project

A systematic computer aided model based exergy efficiency method employing output to input ratio (the ratio of produced exergy to the exergy used) will be proposed in this project as a unified scale for evaluating the effective utilization of energy for three different biomass utilization processes (pyrolysis, gasification and anaerobic digestion). Based on established estimation model of higher heat value (HHV) for biomass, the Gibbs free energy minimization method will be used to simulate the pyrolysis and gasification processes of biomass, while a new model for anaerobic digestion model 1 (ADM1) will be used to generate the biogas data for the analysis. Then, based on chemical exergy estimation model of biomass, different biomass utilization processes (three kinds of straws and three kinds of manures are considered) will be analyzed for exergy efficiency.

Supervisors

Prof. Georgios Kontogeorgis
Assistant Prof. Xiaodong Liang

The project started on July 2, 2017 and will be completed on June 29, 2018. 

Kontakt

Georgios Kontogeorgis
Professor
DTU Kemiteknik
45 25 28 59