Modelling, optimisation, design and analysis of integrated energy systems

ME-602

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Organisation of the course

MODELLING, OPTIMISATION, DESIGN AND ANALYSIS OF INTEGRATED ENERGY SYSTEMS

Location (Mattmark, EPFL-Valais): lecture (09:00-12:30), exercise/project (13:30 - 17:30)

Instructor: Prof. François Maréchal, Prof. Manuele Margni

Assistants: Eduardo Pina, Wen Du

General organisation

The lecture will be given in person. Prof. Maréchal and Prof. Margni will lecture in the morning sessions. A mini-group project will explore the concepts and will take place in the afternoon time slot.

The course is evaluated on the basis of a report on the project.

Each day will be organised in the same way in the Mattmark room:

  1. From 09:00 to 12:30, lecture session: Each session is associated with a forum topic where students can ask questions to the Professor.
  2. At 13:30: A wrap-up session to align theory and practice.
  3. From 13:30 to 17:30, project session: The afternoon session is dedicated to developing the mini-project coached by the Teaching Assistants

Topics of the lecture are the following:

  1. Day 1: 02/04/2024: Non-linear optimisation problem in integrated energy system design
    1. Energy system models
    2. Thermo-economic performance indicators
    3. Optimisation strategies and problem-solving
    4. Project : optimising heat exchange recovery in a process using non-linear programming techniques
  2. Day 2: 03/04/2024: Process and energy system integration
    1. Efficiency and heat recovery by process integration techniques
    2. Combined heat and water integration
    3. Integrating energy conversion in industrial processes
    4. Project: Combined heat and water integration in a process using linear programming techniques
  3. Day 3: 04/04/2024 : Environmental impact assessment
    1. Life Cycle Environmental impact assessment methodology for energy systems
    2. Environmental impact assessment performance indicators for decision making
    3. Project: Process options cost and environmental impact assessment using life cycle assessment techniques
  4. Day 4: 05/04/2024: Renewable energy and large scale systems integration and decision support
    1. Multi-period problems formulation
    2. Integrating storage in process and energy systems
    3. Multi-criteria decision support and uncertainty
    4. Project: Integrating a process in an urban system and integrating renewable energy


Tools and support materials

The tools required

In the afternoon of each day, you will work on a different part of the project. The necessary materials for each day's work can be found in the corresponding sections below. Here are the tools required to carry out the afternoon activities:

1) Every part of the project is meant to be developed inside the virtual machine (VM) environment. It should include all the tools you might need. If you do not have a VM at IPESE, one has already been created for you; you should have received an email with the subject "New VM". For those already possessing a VM, be sure to have the proper extensions installed for Visual Studio code, as well as MINOS and/or SNOPT solvers for non-linear optimization problems. Instructions on how to access your VM can be found below.

2) The final report must be elaborated in Quarto using the template available at the Gitlab repository (link). There you will find detailed instructions on how to use the tools. In case you do not have access to the repository, a zip file is provided below.

3) An example of an AMPL model is provided along with the report template.



Non Linear optimisation in energy systems

Videos 

The following lectures are mainly live recordings of the ME-602 in 2016. 
  1. Process flowsheets and process units models (39 min) : how to model industrial processes in stationary conditions.
  2. Energy systems thermo-economic optimisation (33 min) : thermo-economic performances of processes for process design and optimisation
  3. Solving strategies for the optimisation of energy systems (31 min) : how to use models to state optimisation problems. 
  4. Solving non linear optimisation problems (45 min) : how to solve optimisation problems in process and energy systems
  5. Example : Heat recovery heat exchanger optimisation (13 min) : the example of calculating the optimal area of a heat recovery heat exchanger.
Useful references


Process and energy system integration

Videos of recorded lectures

The following lectures are mainly live recordings of the ME-602 in 2016. The videos indented are optional
  1. Process integration (44 min) : introduction of process integration technique to identify heat recovery potential ins in an industrial process.
  2. Energy Conversion System Integration using mixed integer linear programming (MILP) (1h47 min) : a method to integrate the conversion of energy resources to supply heating cooling and power to a process system. 
Heat Exchanger Network (HEN) design using the Pinch design method (21 min) : The principle on how to identify the heat exchangers needed to realise the heat recovery in a process.
HEN design using Mathematical programming (43 min) : How to use mathematical programming techniques to design and optimise heat exchanger networks.
  • Alberto Mian HEN design (60 min) : an advanced lecture on heat exchnger network design using mixed integer non linear optimisation strategies
Restricted matches (19 min) : how to integrate restricted matches in process integration approachesWater pinch (17 min) : saving water and combined water and energy savings

Environmental impact assessment

Video

Course from 09:00 - 12:30

  1. Introduction to Life Cycle assessment
    • Context: IPAT equation, the great acceleration, planetary boundaries and sustainable development
    • Introduction
    • Reasons to perform a LCA
    • the 4 phases: Goal&Scope, Inventory analysis, impact assessment, interpretation
    • Conclusion: key points for an LCA
  2. Life cycle Environmental impact assessment and energy systems (2h00) : Application of LCA in energy systems (recorded from the LCA and energy system course (2020))

Useful references Day 3: https://infoscience.epfl.ch/yourbaskets/display_public?bskid=7200 

Renewable energy and large scale system integration

Videos

The following lectures are mainly live recordings of the ME-602 in 2016. The videos indented are optional
  1. Multi-period problems (23 min) : how to design systems for multi-conditions operations
  2. Heat pumps superstructures (2020 : 17 min) : optimising heat pumps with superstructure and mixed integer non linear programming optimisation
  3. Integration of solar energy in an industrial process (2020 : 28 min) : integrating solar conversion technologies and storage tanks.
  4. Storage and predictive control (60 min) : Integration of renewable energy resources and integration of storage
  5. Urban energy system design (56 min) : the analysis of urban energy systems
  6. Urban Energy system optimisation (1h34 min) : how to design urban energy systems.
  7. Industrial symbiosis and investment planning (2020 : 29 min): how to realise a large scale system integration
  8. Future energy systems (22 min) : a perspective on how to make Switzerland 100% renewables applying energy system integration strategies.