This course provides an introduction to the most powerful engineering principles you will ever learn - Thermodynamics: the science of transferring energy from one place or form to another place or form. We will introduce the tools you need to analyze energy systems from solar panels, to engines, to insulated coffee mugs.
More specifically, we will cover the topics of mass and energy conservation principles; first law analysis of control mass and control volume systems; properties and behavior of pure substances; and applications to thermodynamic systems operating at steady state conditions.
The class consists of lecture videos, which average 8 to 12 minutes in length. The videos include integrated In-Video Quiz questions. There are also quizzes at the end of each section, which include problems to practice your analytical skills that are not part of video lectures. There are no exams.
Each question is worth 1 point. A correct answer is worth +1 point. An incorrect answer is worth 0 points. There is no partial credit. You can attempt each quiz up to three times every 8 hours, with an unlimited number of total attempts. The number of questions that need to be answered correctly to pass are displayed at the beginning of each quiz. Following the Mastery Learning model, students must pass all 8 practice quizzes with a score of 80% or higher in order to complete the course.
In this module, we frame the context of energy and power supply and demand around the world. You will learn that understanding and correctly using units are critical skills for successfully analyzing energy systems. It is also important to be able to identify and categorize systems as “open” or “closed” and “steady state” or “transient”. Thermodynamics is a topic that is very notation intense, but the notation is very helpful as a check on our assumptions and our mathematics. Additionally, in this module we will refresh our understanding of some common thermodynamic properties.
Graded: Week 1
In this module, we will get started with the fundamental definitions for energy transfer, including the definitions of work transfer and heat transfer. We will also show (by example) how state diagrams are valuable for explaining energy transfer processes. Then, we have all the tools we need to define the 1st Law of Thermodynamics also called the Conservation of Energy. Your second assignment will emphasize these principles and skills.
Graded: Week 2
In this module, we introduce our first abstract concepts of thermodynamics properties – including the specific heats, internal energy, and enthalpy. It will take some time for you to become familiar with what these properties represent and how we use these properties. For example, internal energy and enthalpy are related to temperature and pressure, but they are two distinct thermodynamic properties. One of the hardest concepts of thermodynamics is relating the independent thermodynamic properties to each other. We have to become experts at these state relations in order to be successful in our analysis of energy systems. There are several common approximations, including the ideal gas model, which we will use in this class. The key to determining thermodynamic properties is practice, practice, practice! Do as many examples as you can.
Graded: Week 3
In this module we introduce the combined application of the Conservation of Mass and the Conservation of Energy for system analysis. We also review the common assumptions for typical energy transfer devices, like heat exchangers, pumps and turbines. Together these components will form the basis for all power plants used around the world.
Graded: Week 4
In this module, we tackle some of the most difficult systems to analyze – transient or time-varying systems. Any system where the energy transfer changes as a function of time requires transient analysis. Not only are these difficult problems to analyze, they are also difficult systems to design and interrogate. Some important transient problems include the start-up of a gas turbine or an internal combustion engine. Such transients are becoming more integral to the electrical power grid due to the introduction of more renewable power sources which are also more intermittent. These are very relevant and timely topics for the stationary power sector.
Graded: Week 5
In this module, we introduce some of the concepts of the Second Law of Thermodynamics. We will only discuss a small fraction of the vast material that falls under the topic of the Second Law. I encourage you to explore beyond our course material for very interesting discussions on the outcomes of the Second Law which include entropy, the absolute temperature scale and Carnot cycles. The most important aspect for our class, is that the Second Law provides a basis for defining the theoretical maximums and minimums for processes. Using these limits, we can define device and system efficiencies. We demonstrate these limits with examples of basic power plants. A good “take-home” exercise is to apply these limits to some of the devices and systems you see every day around you.
Graded: Week 6
In this module we focus on in-depth analysis of a Rankine power plant. The Rankine power plant is the fundamental design for stationary power generation when the working fluid is water (or steam) and the energy carrier is nuclear, coal, gas, or thermal solar power. We also learn that conventional power plants generate a lot of waste heat! Co-generation is a great way to use that waste heat. Can you think of a few ways you might capture waste heat and use it productively? Then you might have your next environmentally sustainable business venture!
Graded: Week 7
In this module, we have a brief discussion of energy carriers – including fossil fuels and battery materials. These lectures highlight the thermodynamic properties of these energy carriers and storage materials that make these systems so attractive and at the same time, so difficult to replace. As this is our last module of the course, I hope you have enjoyed this Introduction to Thermodynamics and that you have learned some new skills. Good luck on all your adventures in energy systems!,
Ce cours complète le MOOC « Thermodynamique : fondements » qui vous permettra de mettre en application les concepts fondamentaux de la thermodynamique. Pour atteindre cet objectif, le Professeur J.-Ph. Ansermet de l’Ecole Polytechnique Fédérale de Lausanne s’est entouré d’experts et de spécialistes des différents domaines d’application provenant de diverses institutions partenaires du réseau RESCIF. Vous pourrez ainsi voir l’usage de la thermodynamique en chimie, en ingénierie et en physique.
La Conversion Thermodynamique de la Chaleur joue un rôle essentiel dans nos sociétés car elle permet de répondre à des besoins fondamentaux comme le chauffage, la production de froid, l’éclairage, la mobilité, la fourniture d’énergie mécanique, etc. Les systèmes énergétiques qui seront étudiés dans ce MOOC ont donc un impact direct sur notre vie quotidienne à tous. Vous souhaitez comprendre comment ces systèmes énergétiques permettent d’effectuer des conversions entre chaleur et travail, mais vous ne supportez plus les développements théoriques fastidieux et inutiles. Ce MOOC propose pour cela une méthode originale qui permet de dépasser les limites que rencontre l'enseignement de la discipline par les approches classiques.
Chemical reactions underpin the production of pretty much everything in our modern world. But, what is the driving force behind reactions? Why do some reactions occur over geological time scales whilst others are so fast that we need femtosecond-pulsed lasers to study them? Ultimately, what is going on at the atomic level? Discover the answers to such fundamental questions and more on this course in introductory physical chemistry.
Il corso affronta le tematiche della meccanica e della termodinamica partendo dall’applicazione del metodo sperimentale, per prepararsi al meglio all'ingresso all'università. The course addresses the thematic of Mechanics and thermodynamics starting from the applications of the experimental method, to better prepare to start the college experience with the fundamental knowledge.
Ce cours vous apportera une compréhension des concepts fondamentaux de la thermodynamique du point de vue de la physique, de la chimie et de l’ingénierie. Il est scindé un deux MOOCs. Dans la première partie, le Professeur J.-Ph. Ansermet de l’EPFL et son collaborateur le Dr. Sylvain Bréchet ont rassemblé en quatre leçons tous les principes fondamentaux de la thermodynamique. La deuxième partie du MOOC illustre l’approche thermodynamique par une série d’applications présentées par des spécialistes provenant de diverses institutions partenaires du réseau RESCIF.
Bioenergética é usar a palavra energia para explicar os fenômenos do organismo vivo. Estuda as transformações permitidas e quais são as proibidas; como o organismo escolhe, entre várias transformações possíveis, aquelas que levam ao crescimento e à multiplicação; como as leis da termodinâmica moldam as possibilidades do ser vivo.
It is an online course aimed at large-scale participation and open (free) access via the internet.
They are similar to university courses, but do not tend to offer academic credit.
A number of web-based platforms (providers Aka initiatives) supported by top universities and colleges offer MOOCs in a wide range of subjects.
How to Be a Successful MOOC Student - MOOCs – Massive Open Online Courses – enable students around the world to take university courses online. This guide, by the instructors of edX’s most successful MOOC in 2013-2014, Principles of Written English (based on both enrollments and rate of completion), advises current and future students how to get the most out of their online study, covering areas such as what types of courses are offered and who offers them, what resources students need, how to register, how to work effectively with other students, how to interact with professors and staff, and how to handle assignments. This second edition offers a new chapter on how to stay motivated. This book is suitable for both native and non-native speakers of English, and is applicable to MOOC classes on any subject (and indeed, for just about any type of online study).