Download e-book for iPad: Applied Building Physics: Boundary Conditions, Building by Hugo S. L. C. Hens

By Hugo S. L. C. Hens

ISBN-10: 3433029628

ISBN-13: 9783433029626

ISBN-10: 3433600910

ISBN-13: 9783433600917

The strength crises of the Seventies, persisting moisture difficulties, lawsuits approximately unwell structures, thermal, visible and olfactory pain, and the movement in the direction of extra sustainability in development development have driven development Physics to the vanguard of creating innovation. The societal strain to decrease power intake in constructions with no impairing usability acted as a set off to turn on the entire concept of functionality established layout and development. as with every engineering sciences, construction Physics is orientated in the direction of program, that's why, after a primary booklet on basics this moment quantity examines functionality intent and function specifications. outside and indoor weather stipulations are defined and calculation values are mentioned, the functionality suggestion is certain on the construction point and on the development envelope point, and heat-air-moisture fabric houses are defined.
The ebook accommodates 35 years of training development Physics to architectural, development and civil engineers, strengthened via forty years of expertise, study and consultancy.

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Additional info for Applied Building Physics: Boundary Conditions, Building Performance and Material Properties

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The size distribution of rain drops. Quart. J. Royal Meteor. , Vol. 76, p. 16–36. 3] WTCB (1969). Study of the heat gains by natural illumination of buildings. Part 1, Solar irradiation, Research report 10 (in Dutch). 4] BRE (1971). An index of exposure to driving rain. Digest 127. 5] Hens, H. (1975). Theoretical and experimental study of the hygrothermal behaviour of buildingand insulating materials by interstitial condensation and drying, with application on low-sloped roofs. Doctoral thesis, KU-Leuven (in Dutch).

Apparently the air is too dry in natatoriums. A possible explanation is that most indoor swimming pools have an enclosure which is not designed to tolerate a relative humidity at comfort level without severe moisture problems. Anyhow, keeping relative humidity as low as measured, demands intensive ventilation and leads to a high end energy consumption. 23. Indoor swimming pools, measured weekly mean indoor/outdoor water vapour pressure excess and relative humidity. 21. Indoor swimming pools: weekly mean inside/outside vapour pressure excess in relation to the weekly mean outside temperature.

5 49 Inside/outside air pressure differentials Air pressure differentials by stack, wind and fans act as the driving force behind air in- and egress, air looping and air carried vapour and enthalpy displacement. That way, they cause thermal transmittance and thermal transient response to loose significance, induce interstitial condensation worries, highen energy consumption, activate drafts and degrade sound insulation. Stack gives overpressure indoors in winter and possibly under-pressure in summer.

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Applied Building Physics: Boundary Conditions, Building Performance and Material Properties by Hugo S. L. C. Hens

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