Publication

Development of solar ventilated façade system for building energy retrofit

Abstract

In the perspective of setting ambitious targets for new buildings energy performance and of introducing new approaches to retrofit existing buildings, the implementation of solar thermal collectors into façade becomes very interesting Several research activities are currently pursued to facilitate the architectural integration of collectors in the building skin, , mainly in the glazed flat plate collectors’ domain. This paper presents a new approach for unglazed flat plate collectors,. The idea is to develop a new collector conceived from scratch as a building element, either façade metallic cladding or roof covering. The base element is an absorber whose hydraulic circuit is made using the “roll bond” technique. The building element chosen can then be formed by bending a non active band left around the absorber area in the roll bond process. Insulation can finally be added on the back of the module or in the mounting process. Selectivity and colours can be obtained spraying TISS (Thickness Insensitive Spectrally Selective) paints, or using vacuum deposition. Simulations have been carried out to better analyse possible applications on different buildings and drive the prototype realisation. The whole project arises from a constructive cooperation between research institutes and industry of solar collectors and façade systems.

About this result
This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.
Related concepts (34)
Solar thermal collector
A solar thermal collector collects heat by absorbing sunlight. The term "solar collector" commonly refers to a device for solar hot water heating, but may refer to large power generating installations such as solar parabolic troughs and solar towers or non water heating devices such as solar cooker, solar air heaters. Solar thermal collectors are either non-concentrating or concentrating. In non-concentrating collectors, the aperture area (i.e., the area that receives the solar radiation) is roughly the same as the absorber area (i.
Solar thermal energy
Solar thermal energy (STE) is a form of energy and a technology for harnessing solar energy to generate thermal energy for use in industry, and in the residential and commercial sectors. Solar thermal collectors are classified by the United States Energy Information Administration as low-, medium-, or high-temperature collectors. Low-temperature collectors are generally unglazed and used to heat swimming pools or to heat ventilation air. Medium-temperature collectors are also usually flat plates but are used for heating water or air for residential and commercial use.
Photovoltaic thermal hybrid solar collector
Photovoltaic thermal collectors, typically abbreviated as PVT collectors and also known as hybrid solar collectors, photovoltaic thermal solar collectors, PV/T collectors or solar cogeneration systems, are power generation technologies that convert solar radiation into usable thermal and electrical energy. PVT collectors combine photovoltaic solar cells (often arranged in solar panels), which convert sunlight into electricity, with a solar thermal collector, which transfers the otherwise unused waste heat from the PV module to a heat transfer fluid.
Show more
Related publications (44)

Thermochromic solar absorber coatings with elevated transition temperature

Anna Krammer

Due to their simple design and operation, solar thermal collectors for domestic hot water gener-ation and space heating are one of the most common solar energy harvesting systems in use today. Dur-ing cold periods all the absorbed energy is useful. During ...
EPFL2020

Towards a GIS-based Multiscale Visibility Assessment Method for Solar Urban Planning

Pietro Florio

Urban areas are facing a growing deployment of solar photovoltaic and thermal tech-nologies on building envelopes, both on roofs and on façades, essential for the realization of the Swiss Energy Strategy 2050. This process often occurs regardless of the de ...
EPFL2018

Infrared Optical Properties of Doped and Pure Thermochromic Coatings for Solar Thermal Absorbers

Anna Krammer, Josef Andreas Schuler, Fabrice Thierry Demière

A new generation of solar collectors is based on thermochromic thin film technology, where the remarkable optical changes of vanadium dioxide, through its reversible semiconductor-to-metal phase transition, are exploited. This study reports on the infrared ...
ISES2018
Show more
Related MOOCs (5)
SES Swiss-Energyscope
La transition énergique suisse / Energiewende in der Schweiz
SES Swiss-Energyscope
La transition énergique suisse / Energiewende in der Schweiz
Micro and Nanofabrication (MEMS)
Learn the fundamentals of microfabrication and nanofabrication by using the most effective techniques in a cleanroom environment.
Show more

Graph Chatbot

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.