munch s paintings in the aula of oslo university l.
Skip this Video
Loading SlideShow in 5 Seconds..
Munch???s Paintings in the Aula of Oslo University PowerPoint Presentation
Download Presentation
Munch???s Paintings in the Aula of Oslo University

Loading in 2 Seconds...

play fullscreen
1 / 20

Munch???s Paintings in the Aula of Oslo University - PowerPoint PPT Presentation

  • Uploaded on

Munch’s Paintings in the Aula of Oslo University

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about 'Munch???s Paintings in the Aula of Oslo University' - guest181

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
project outline
Project Outline
  • First Phase: monitor humidity, temperature, airborne pollutants and soiling characteristics
  • Second Phase: examination of technique and condition, documentation
  • Third Phase: removal of one of the paintings to evaluate feasibility of remounting
  • Fourth Phase: submit proposals for adjustments of building, treatment of paintings
  • Fifth Phase: implementation of accepted proposals (cleaning)

Particles within the 0.1 to 2 micron range

Investigation will focus on this range of particle size because:

  • The black tar-like particles from high temperature combustion fall into this category.
  • This range also includes sulphur dioxide and oxides of nitrogen together with ammonia.
  • This is the largest group of particulates which absorb pollutant gasses and vapours – they are therefore the highest risk group.
possible mechanisms for dirt deposition
Possible mechanisms for dirt deposition
  • Themophoresis
  • Moisture differentials

Thermophoresis: Particle motion in a temperature gradient, from a hotter to a colder region

reasons for thermophoresis
Reasons for Thermophoresis
  • The fibre board backing acts as thermal insulation.
  • Air flow/ cold bridging due to joints in back board cause temperature differential across the surface of the painting.
  • Differential surface temperature results in differential dirt deposition
moisture differentials
Moisture differentials
  • Moisture transference from the verso via joints.
  • Higher moisture content = stickier surface
proposed monitoring
Proposed monitoring
  • Thermohydrographic measurement
  • Real time dust deposition (reflectance)
  • Environmental surface monitoring (Geletin lifters)
  • Thermal imaging
  • Colorimetric measurement of test samples