Live data from the environmental chamber measuring moisture buffer performance of materials and constructions

The chamber is currently closed down. Here is an article describing results from the latest set of experiments and the accompanying lecture.

This chamber is currently operating in the Civil Engineering Department of the Technical University of Denmark, Lyngby. It controls either the RH, or the water vapour flux, in a specimen chamber capable of containing sections of walls of buildings. Instead of weighing the specimen to measure water exchange, it weighs the water in a reservoir in the vapour tight enclosure.

The chamber is currently exposing perforated unfired brick, 10 cm deep, with limited air flow across the surface, to compare with the good performance of well ventilated perforations.

Diagnostics:Data as text / diagnostic data / graph of last three days

This is a picture of the interior of the climate chamber with an earlier test subject - unfired bricks with perforations exposed to the chamber air. The shiny metal in the bottom half of the picture is the water vapour flux generator. The surrounding circular structure is a double walled, insulated chamber with temperature control by air circulating over cooling coil and heating coil within the annular space.

The purpose of this experiment is to evaluate the performance of water vapour reactive materials in a cyclic variation in RH.

Read the Discussion of results (pdf 5Mb)