FEFLOW – Getting started with geothermal modelling: Closed-loop systems

INVESTMENT

Fee: No charge*

Time commitment: approximately two hours in total, divided as follows:

• Self-study: Six modules, combining online video lectures, demonstration videos, quizzes, hands-on exercises and reading materials
• (Optional) Additional reading materials can be made available for you to master the software at a greater depth

PRODUCT

FEFLOW

Groundwater hydrologists or hydrogeologist are often asked questions about groundwater flow, aquifer hydraulics, management of water resources, fate of contamination plumes or feasibility of geothermal systems, plus others.

Providing answers to all these questions requires specific field information and a general understanding of hydrogeological processes. Nature is not simple and even simple tasks require state-of-the-art supporting tools. A numerical model provides a quantitative framework for synthesising field information and for conceptualising hydrogeologic processes. The model is used as tool to assist consultants and engineers for getting possible answers to a specific groundwater problem.

This self-paced course will introduce you to the basic concept of geothermal modelling using FEFLOW. Specifically, the course focuses on the modelling of closed-loop geothermal systems. The course will provide you some insights about the modelling of borehole heat exchanges in FEFLOW.

FEFLOW is the most intuitive and comprehensive software package for groundwater and porous media modelling. The software has been extensively used for modelling geothermal installations, including both shallow and deep geothermal systems. FEFLOW has the capabilities to model both open and closed loop geothermal systems at any time resolution. A major advantage of FEFLOW compared to other modelling packages is the fact that FEFLOW can easily implement heterogeneties (hydraulic and thermal parameters), groundwater flow patterns, effect of recharge on temperature, fluid properties (viscosity and density) depending on temperature, etc.

About FEFLOW

FEFLOW is widely recognised as a comprehensive software package for subsurface flow and transport simulation. FEFLOW’s unique meshing capabilities (structured and unstructured) allows for the highest degree of flexibility to account in detail for the most simple to complex geometrical configurations. The software is used by leading research institutes, universities, consulting firms and government organisations all over the world. FEFLOW’s scope of application ranges from simple local scale to complex largescale modelling. Application areas include water management, mine water, saltwater intrusion, geothermal energy and variably saturated media.

IS THIS COURSE RIGHT FOR ME?

The course has been designed for consultants, engineers, hydrogeologists and geologists with some basic understanding of hydrogeological concepts and geothermal installations. It is not mandatory that you have already carried out numerical simulations of geothermal systems. However, it is beneficial if you have certain knowledge of flow simulations in FEFLOW. You can quickly learn about these through the free self-paced course ‘Getting started with groundwater modelling using FEFLOW’.

WHAT ARE MY EXPECTED OUTCOMES?

After completing this course, you will be able to build a numerical model of a geothermal closed-loop system with FEFLOW. You will have learnt:

• To set-up a Borehole Heat Exchanger (BHE) in a 3D FEFLOW numerical model.
• To adjust numerical parameters for proper simulation results.
• To define a dataset for controlling BHE's geometrical properties, computational settings and refrigerant physical properties.
• To link multiple BHEs within an array using powerful FEFLOW's BHE Interconnector Editor.
• To run the numerical model with the geothermal simulations and analysis the results (spatio-temporal temperature distribution).

LEARNING METHODOLOGY

Each module includes videos and materials that you need for model examples and quizzes. It will take you around two hours to complete the course at a time that fits your needs and requirements – and from the comfort of your own office, home or any location convenient for you.

MODULE DETAILS

Introduction - Preliminary steps

Module 1 - Introduction

Module 2 – Borehole Heat Exchanger | Implementation

Module 3 - Model run and results evaluation

Module 4 – Borehole Heat Exchanger | Interconnection

Module 5 – Final remarks

PRESENTER

DR. CARLOS RIVERA VILLARREYES, DHI GERMANY  
Dipl.-Ing. (FH), Civil Engineering, University of Piura, Peru; MSc, Desert Studies - Water Resources Management, Ben-Gurion University, Israel; PhD, Hydrology, University of Potsdam, Germany

Dr. Carlos Rivera Villarreyes works as Global Product Specialist for FEFLOW. Dr. Rivera has profound knowledge of groundwater and unsaturated-zone modelling as well as parameter estimation and uncertainty analysis (e.g., with PEST), all these in the context of mining applications among others. He has carried several groundwater modelling projects and trained professionals in groundwater modelling around the globe.

Dr. Carlos is an authorised DHI trainer.

REQUIREMENTS

• Reliable internet connection of sufficient bandwidth
• An installation of the DHI License Management and FEFLOW software is required for the completion of the hands-on exercises. This will be explained in the Module 1 of the training course.
• You require basic understanding of terminology used in geothermal systems (e.g. power, energy, pump rates, etc.).
• The course is an intermediate-level course; therefore, it is expected you already know how to create FEFLOW meshes in 2D / 3D and carry out basic model parametrisation. We highly recommended you to participate in the self-paced course "Getting started with groundwater modelling using FEFLOW".
• The course is a continuation of "Getting started with geothermal modelling using FEFLOW - Open-Loop Systems". Therefore, we will recommend you to complete initially the other course first.

RESOURCES

• Highlights of FEFLOW here
• Getting started with groundwater modelling Self-paced course (here)
• Getting started with geothermal modelling: Open-Loop System Self-paced course (here)
• THE ACADEMY Courses and Events Calendar - webinars
• THE ACADEMY Courses and Events Calendar - online courses

INFORMATION AND CONTACT

Carlos Andres Rivera Villarreyes - cvi@dhigroup.com

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