Increasing the energy efficiency of the
industrial sector has the potential to significantly reduce the greenhouse gas
emissions associated with the burning of fossil fuels and to reduce the
The food and beverage industry is especially a
major industrial sector in Denmark and Europe and represents of more than 10%
of the private sectors total energy consumption. The food and beverage industry
is water-intensive as well, as large amounts of water is used for cleaning
purposes, process additives etc. Similarly, the amounts of waste water are significant
and represents a large operating cost to handle due to requirements for
project will focus on analyzing the production processes and energy use at the
factory to determine the current degree of integration and to determine waste
heat sources. Based on collected data and information, detailed energy and
water end use are to be established and thermodynamic models need to be
developed and validated. Methods such as pinch analysis and process integration
may be applied to find optimization potentials, which are quantified and
evaluated, based on private-economic analyses.
The part of the factory, which is of interest
in this project, is responsible for pressing rapeseed and extracting the oil.
The rapeseed has to be thermally treated before being pressed and the remainder
of the oil is extracted using a solvent. Both of the oils are cooled to a
storage temperature of before being stored.
The aim of the project is to carry out an
in-depth study of energy use and opportunities for energy efficiency measures.
The project will consist of the following elements:
a complete overview of energy use in the facility
a complete overview of waste energy and waste water in the facility
temperature and quality aspects of all identified energy and water/waste water
opportunities for optimizing energy and water usage in the facility
process integration/heat recovery
re-use of water
business cases for selected investment projects to minimize energy and water
general aspects of applied methods and approaches in a broader context
project can further include elements such as modelling of heat exchangers and
thermal storages; Feasibility studies; Uncertainty and sensitivity analysis; The
scientific focus of the project can be discussed and any suggestions from
students are very welcome.
is to be carried out by one or two students, and will to a certain extent be
carried out at an industrial production facility in southern Sweden and in
collaboration with engineering consultants. It is expected that energy and
water balances are to be partly established via measurement programs in the
thesis project will be carried out in collaboration with industrial partners
from the energy consultancy (Viegand Maagøe), the food ingredients facility AAK
in Karlshamn and relevant suppliers of equipment and solutions within the
energy and water sector. The candidate(s) will be supervised and supported by
members of the Section for Thermal Energy at the Mechanical Engineering
department at DTU.
The students are
required to have a strong background
in thermodynamics and energy engineering. Knowledge about pinch analysis, heat
exchanger networks, energy efficiency and industrial production is beneficial.
As the work will be in close collaboration with several industrial partners,
the students are required to show a high level of organizational and
communication skills (e.g. organize project meetings, factory visits, organizing
data collection with partners).
I samarbejde medViegand Maagøe A/S; AAK