Means and techniques useful in establishing R values in insulati

Details Means and techniques useful in establishing R values in insulati Means and techniques useful in establishing R values in insulati

1978-06-14

1980-12-02

Goldstein, Herbert

Measuring and testing

Gas content of a liquid or a solid

By vibration

G01N 2518

Patent

active

042364035

ABSTRACT:
The R value of heat insulation already in situ in a wall of a building structure which has already been subjected to climatic hot and cold conditions is established under transient conditions that exist over a 24 hour period by establishing a first series of values, each representative of the difference in temperature between the inner and outer wall at successive times during such 24 hour period and simultaneously establishing a second series of values, each representative of the heat flux into or out of the wall at said same successive times, and combining said first and said second series of values to obtain said R value.

REFERENCES:
patent: 2878669 (1959-03-01), Knudson et al.
Hody et al., "Direct in situ Measurement of Thermal Insulation Quality Underwater", IEEE Int. Conf. on Eng. in The Ocean Environment 9/1973, pp. 133-136.

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