diathermanous


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diathermanous

[¦dī·ə¦thər·mə·nəs]
(physics)
Capable of transmitting radiant heat. Also known as diathermic.
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References in periodicals archive ?
In the models handled in this paper, it is assumed that the venetian blinds are fully or adequately closed and that the blinds do not have to be treated as diathermanous layers.
Calculating centerglass performance indices of windows with a diathermanous layer.
However, by following a general theory and measurement procedure documented by Christie and Hunter (1984), the reflectometer can be adapted to measure both infrared reflectance and transmittance of diathermanous samples.
lw] of a diathermanous sample, the procedure outlined by Christie and Hunter (1984) is used.
Relative to the carbon particle itself, the first key passages come at the end of Part I: "Thus far all the laws derived in the preceding sections for diathermanous media hold for a definite frequency, and it is to be kept in mind that a substance may be diathermanous for one color and adiathermanous for another.
The known heat transfer coefficients are then used to construct a resistance network making it possible to calculate U-factor and SHGC for a system that includes one or more diathermanous layers.
The code is based on the theory developed in (Wright 2008) and provides all of the generality of that theory except for two restrictions: (1) SHGC cannot be calculated for situations with zero solar radiation and (2) even though the system can include any combination of glazing and shading layers, indices of merit cannot be calculated for systems with more than one consecutive diathermanous layer.
Calculating center-glass performance indices of windows with a diathermanous layer.
This new method is sufficiently general to handle any combination of diathermanous and opaque layers comprising a glazing/ shading system.
The procedure presented here is similar to Gebhart's analysis of diffuse, grey enclosures (Gebhart 1957, 1959, 1961), a "unified method for radiation exchange", with an extension to specifically account for diathermanous layers.
The present work examines the errors inherent in applying these standard calculation methods to window systems that include a single diathermanous layer (such as a shading layer), and new equations for calculating the performance indices are derived.
Unfortunately, a shading layer such as a venetian blind is diathermanous by virtue of its openness.