Microclimate for Cultural Heritage

Microclimate for Cultural Heritage
Author: Dario Camuffo
Publisher: Elsevier
Total Pages: 582
Release: 2019-06-28
Genre: Nature
ISBN: 0444641076

Microclimate for Cultural Heritage: Measurement, Risk Assessment, Conservation, Restoration, and Maintenance of Indoor and Outdoor Monuments, Third Edition, presents the latest on microclimates, environmental issues and the conservation of cultural heritage. It is a useful treatise on microphysics, acting as a practical handbook for conservators and specialists in physics, chemistry, architecture, engineering, geology and biology who focus on environmental issues and the conservation of works of art. It fills a gap between the application of atmospheric sciences, like the thermodynamic processes of clouds and dynamics of planetary boundary layer, and their application to a monument surface or a room within a museum. Sections covers applied theory, environmental issues and conservation, practical utilization, along with suggestions, examples, common issues and errors. Incorporates research on the effects of climate change from Climate for Culture, the EU funded, five-year project focusing on climate change’s impact on cultural heritage preservation Covers green lighting technology, like LED and OLED, it’s impacts on indoor microclimates, preservation and color rendering Includes a case study on sea level issues and cultural heritage in Venice

Developments in Surface Contamination and Cleaning

Developments in Surface Contamination and Cleaning
Author: Rajiv Kohli
Publisher: Elsevier
Total Pages: 1209
Release: 2008-01-10
Genre: Science
ISBN: 0815516851

Surface contamination is of cardinal importance in a host of technologies and industries, ranging from microelectronics to optics to automotive to biomedical. Thus, the need to understand the causes of surface contamination and their removal is very patent. Generally speaking, there are two broad categories of surface contaminants: film-type and particulates. In the world of shrinking dimensions, such as the ever-decreasing size of microelectronic devices, there is an intensified need to understand the behavior of nanoscale particles and to devise ways to remove them to an acceptable level. Particles which were functionally innocuous a few years ago are ôkiller defectsö today, with serious implications for yield and reliability of the components. This book addresses the sources, detection, characterization and removal of both kinds of contaminants, as well as ways to prevent surfaces from being contaminated. A number of techniques to monitor the level of cleanliness are also discussed. Special emphasis is placed on the behaviour of nanoscale particles. The book is amply referenced and profusely illustrated. • Excellent reference for a host of technologies and industries ranging from microelectronics to optics to automotive to biomedical. • A single source document addressing everything from the sources of contamination to their removal and prevention. • Amply referenced and profusely illustrated.

Research on Thermophoretic and Inertial Aspects of Ash Particle Deposition on Heat Exchanger Surfaces in Coal-fired Equipment

Research on Thermophoretic and Inertial Aspects of Ash Particle Deposition on Heat Exchanger Surfaces in Coal-fired Equipment
Author:
Publisher:
Total Pages: 10
Release: 1989
Genre:
ISBN:

Our results on photophoresis reveal significant transport effects, mainly for particles which are carbonaceous (char-like, soot-like) rather than ash-like. Figure 2 shows the predicted dimensionless transport coefficient (proportional to the ordinary Stanton number for mass transfer) as a function of radiation/convective flux ratio and carbonaceous particle radius for laminar boundary layer flow past a wall cooled to 70% of the mainstream temperature, subjected to a radiative energy spectrum appropriate to a black-body source at ca. 1800K. One sees that large effects on the particle deposition rate are produced if the radiative flux is comparable to or exceeds the ordinary (Fourier) energy flux. We are now extending this work to include the effects of inevitable particle asymmetries, including agglomerate (shape) effects, and the role that energy transfer (eg. radiative cooling of larger particles in a population) might play in the coagulation dynamics and deposition dynamics of such aerosol populations.