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Buffermetry

Status and current activity

Abstract

Introduction

Fundamentals of moisture buffering

Properties of hygroscopic materials

Diffusion enhanced materials and structures

Experimental: Sorption experiments

Experimental: Diffusion experiments

Diffusion rate discussion

Incorporating the buffer in the construction

Whole room simulations and experiments

Experiment in the Passys environmental room

Whole building considerations

Conclusions

Acknowledgements

Appendices - instruments and procedures
Tinman instructions and results

Bibliography and references


Page for discussion


Wiki howto

Whole room simulations and experiments

Modelling

It has become the custom in the building physics community that a computer model has to be constructed to validate the experimental evidence and connect it to an underlying physical process, so that large and complicated structures can have their relative humidity predicted. We don't intend to make our own model but will collect our data in such a way that they can be fed into existing heat-and-moisture models such as BSim (DK) and WUFI+ (DE).

The prior art

The pioneer in adding bricks to an exhibition gallery is Carl Andre, whose sculpture Equivalent VIII was acquired by the Tate Gallery, at it was then named, in 1976. Unfortunately, he used fired bricks, which have some heat buffer capacity but negligible moisture buffer capacity. This was not the reason for the widespread criticism this acquisition aroused but with the passage of time we can recognise this as the real failure of his sculpture.


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