Lecture

Energy Consumption Decomposition

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Description

This lecture delves into the decomposition of energy consumption for housing, focusing on factors such as energy efficiency, heated housing surface, and population. The instructor explains how changes in these factors impact energy consumption and discusses the implications of technological advancements, insulation, and heating systems. The lecture also explores the concept of heating degree days and the role of climate change in energy efficiency improvements. Additionally, the rebound effect and the importance of considering well-being in energy reduction strategies are highlighted, along with the significance of adopting existing technologies for sustainable energy practices.

This video is available exclusively on Mediaspace for a restricted audience. Please log in to MediaSpace to access it if you have the necessary permissions.

Watch on Mediaspace

Official source

Ontological neighbourhood

Mechanical engineering

Thermal engineering: Air conditioning

Related concepts (32)

Central heating

A central heating system provides warmth to a number of spaces within a building from one main source of heat. It is a component of heating, ventilation, and air conditioning (short: HVAC) systems, which can both cool and warm interior spaces. A central heating system has a furnace that converts fuel or electricity to heat. The heat is circulated through the building either by fans forcing heated air through ducts, circulation of low-pressure steam to radiators in each heated room, or pumps that circulate hot water through room radiators.

Energy consumption

Energy consumption is the amount of energy used. In the body, energy consumption is part of energy homeostasis. It derived from food energy. Energy consumption in the body is a product of the basal metabolic rate and the physical activity level. The physical activity level are defined for a non-pregnant, non-lactating adult as that person's total energy expenditure (TEE) in a 24-hour period, divided by his or her basal metabolic rate (BMR): Topics related to energy consumption in a demographic sense are: Wo

Population growth

Population growth is the increase in the number of people in a population or dispersed group. Actual global human population growth amounts to around 83 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7.9 billion in 2020. The UN projected population to keep growing, and estimates have put the total population at 8.6 billion by mid-2030, 9.8 billion by mid-2050 and 11.2 billion by 2100.

Underfloor heating

Underfloor heating and cooling is a form of central heating and cooling that achieves indoor climate control for thermal comfort using hydronic or electrical heating elements embedded in a floor. Heating is achieved by conduction, radiation and convection. Use of underfloor heating dates back to the Neoglacial and Neolithic periods. Underfloor heating has a long history back into the Neoglacial and Neolithic periods.

Building insulation

Building insulation is material used in a building (specifically the building envelope) to reduce the flow of thermal energy. While the majority of insulation in buildings is for thermal purposes, the term also applies to acoustic insulation, fire insulation, and impact insulation (e.g. for vibrations caused by industrial applications). Often an insulation material will be chosen for its ability to perform several of these functions at once. Insulation is an important economic and environmental investment for buildings.

Related lectures (64)

Recycling and Sustainable Development: Challenges and Solutions

Examines the role of recycling in sustainable development, addressing its limitations and the importance of a circular economy.

Decoupling Economic Growth from Carbon Emissions

Addresses the need for significant CO2 intensity reduction to achieve climate targets while examining the interplay between economic growth and carbon emissions.

Swiss Habitat: Emissions Analysis

Analyzes CO₂ emissions from Swiss housing, exploring trends, projections, and renovation strategies for a sustainable future.

Energy Consumption and CO2 Concentration

Explores the impact of population growth on energy consumption and CO2 concentration, emphasizing the importance of renewable energy sources and efficiency improvements.

The Grand Challenge: Energy Supply, Economics and Transition