Energy geostructures analysis and design
March 20 to 22, 2018
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Professionals and scientists who want to acquire knowledge on the energy, geotechnical and structural performance of energy geostructures.
The course will be valuable for civil and energy engineers, architects and urban project managers who have no experience with energy geostructures as well as for those who have already been involved in a project including energy geostructures. The course will be given in English.
Basic knowledge of soil and structural mechanics is required.
The application of environmentally friendly technologies that exploit renewable energy sources is key to follow international agreements for the development of low-carbon buildings and infrastructures.
Energy geostructures are an innovative, multifunctional technology that can be used to address the aforementioned challenge. By coupling the role of the ground structures with that of the geothermal heat exchangers, energy geostructures can serve as structural supports as well as heating and cooling elements for buildings and infrastructures.
The analysis and design of energy geostructures require the integrated knowledge of various aspects in the broad field of engineering. How can energy geostructures be analysed and designed from an energy point? What will be the energy performance of energy geostructures over time? How can energy geostructures be analysed and designed from a geotechnical and structural point of view? How can the coupled action of thermal and mechanical loads be considered through current standards and latest international recommendations?
- Understand the thermal and mechanical behaviour of energy geostructures, with reference to the latest scientific achievements
- Be able to perform the energy, geotechnical and structural analysis and design of energy geostructures
- Learn how to exploit current standards available at the European level (e.g., the so-called “Eurocodes”) for the analysis and design of energy geostructures
- Be able to perform all of the key steps involved in the analysis and design process of energy geostructures with practical application exercises
PART A – Introduction (Day 1)
- Renewable energy exploitation for a sustainable development
Governmental incentives and goals at European level. Geothermal energy and geothermal systems.
- Energy geostructures: the technology
Projects worldwide. The three main components of Ground Source Heat Pump Systems. Typical operations and applications. Challenges.
PART B – Energy aspects (Day 1)
- Heat transfer in the context of energy geostructures
Modes of heat transfer. Energy conservation. Initial and boundary conditions.
- Analytical and semi-analytical modelling of steady state heat transfer
The thermal resistance concept for time-independent solutions. Heat transfer in energy piles and other circular heat exchangers. Heat transfer and storage capacity of energy piles. Heat transfer in energy walls and other plane heat exchangers.
- Analytical and semi-analytical modelling of time-dependent heat transfer
The thermal resistance concept for time-dependent solutions. Heat transfer around energy piles and other circular heat exchangers. Heat transfer around energy walls and other plane heat exchangers.
- Estimation of thermal potential of sites and design parameters
Thermal response test. Other relevant experimental laboratory tests for energy design
Application exercises session on the analysis of the results of a thermal response test and a heat transfer laboratory test. Energy design of an energy geostructure.
PART C – Geotechnical and structural aspects (Days 2 & 3)
- Thermo-mechanical behaviour of single and groups of energy piles
Effects caused by the application of thermal and mechanical loads to energy piles. Group effects. Thermo-mechanical schemes. The load-transfer concept. The Thermo-Pile software for the analysis and design of energy piles.
Application exercises session on the analysis and design of the thermo-mechanical behaviour of single and group of energy piles.
- Thermo-mechanical behaviour of energy walls and energy tunnels
Effects caused by the application of thermal and mechanical loads to energy walls and energy tunnels.
- Thermo-hydro-mechanical behaviour of soils
Effects caused by the application of thermal and mechanical loads to coarse- and fine-grained soils.
- Thermo-mechanical behaviour of soil-concrete interfaces
Effects caused by the application of thermal and mechanical loads to coarse- and fine-grained soil-concrete interfaces.
Visit of laboratory experimental facilities.
- Performance-based design in the framework of Eurocodes
The Eurocode programme. Limit states and design situations to consider in the design of energy geostructures. Actions. Verification of requirements through partial factor method. Combinations of actions at ultimate and serviceability limit states. Partial factors for thermal loads acting on energy piles. Geotechnical and structural verifications.
Application exercises session on the geotechnical and structural design of energy geostructures. Geotechnical and structural performance-based design of an energy geostructure.
PART D – Integrated energy, geotechnical and structural design (Day 3)
- Development of projects of energy geostructures
Presentations by engineering companies: Dr. Stefan Wehinger, for ENERCRET (Austria), Dr. Sebastian Homuth, for ZUBLIN (Germany) and Mr. Tony Amis, for GI Energy (UK)
Application exercises session on the integrated energy, geotechnical and structural design of energy geostructures.
- Prof. Lyesse Laloui, Ph.D., Professor and head of Soil Mechanics Laboratory, EPFL
- Mr. Alessandro F. Rotta Loria, P.E., Researcher at Soil Mechanics Laboratory, EPFL
- Dr. Stefan Wehinger, Enercret
- Dr. Sebastian Homuth, Züblin Spezialtiefbau GmbH
- Mr. Tony Amis, GI-Energy
- Optimum balance between theory and practice (application sessions including analytical and numerical simulation exercises)
- Teaching based on cutting-edge scientific achievements
- Case studies based on real energy geostructure projects, for which the Programme Directors worked as expert consultants
A certificate of attendance will be delivered at the end of the course.
- Laboratory of Soil Mechanics (LMS), Swiss Federal Institute of Technology Lausanne (EPFL)
- Prof. Lyesse Laloui, Ph.D.
Professor and head of Soil Mechanics Laboratory, EPFL
- Mr. Alessandro F. Rotta Loria, P.E.
Researcher at Soil Mechanics Laboratory, EPFL
Dates and schedule
- Tuesday, March 20, 2018 – from 9 am to 5 pm
- Wednesday, March 21, 2018 – from 9 am to 5 pm
- Thursday, March 22, 2018 – from 9 am to 5 pm
EPFL, Lausanne, Switzerland
1’900.- Swiss Francs*, including:
- Course material
- Three-month license of academic version of the Thermo-Pile software
- Launches and refreshments
*10% special discount for contributing members of EPFL Alumni
Participants should bring their own laptop (for use during the practical application exercises).
February 1, 2018