Process and device to detect a risk of water condensation on a s

Details Process and device to detect a risk of water condensation on a s Process and device to detect a risk of water condensation on a s

1994-02-03

1996-10-29

Gutierrez, Diego F. F.

Thermal measuring and testing

Thermal testing of a nonthermal quantity

374 54, 374 28, G01N 2512, G01N 2568

Patent

active

055689779

ABSTRACT:
A process is disclosed to detect a water condensation risk on a surface in contact with a wet air volume, which uses the steps of (a) placing a sensitive element on the surface, which initially takes a temperature corresponding to that of the surface, (b) by means of a heating device on this sensitive element, initiating a first heating phase until a temperature higher than the surface temperature is reached, (c) by means of a cooling device having the same thermal power as the heating device, initiating a cooling phase until a temperature lower than the surface temperature is provoked on the sensitive element, and (d) a comparison is made between the ratio of the first heating phase time to the temperature rise during heating and the ratio of cooling phase time to the temperature decrease during the cooling, a noticeable difference between these two ratios indicating a significant risk of condensation on the surface.

REFERENCES:
patent: 3284003 (1966-11-01), Ciemochowski
patent: 3287974 (1966-11-01), Ciemochowski
patent: 3396574 (1968-08-01), Hanlein et al.
patent: 4240284 (1980-12-01), Nguyen
patent: 4435091 (1984-03-01), Nedreski
patent: 4579462 (1986-04-01), Rall et al.
patent: 4946288 (1990-08-01), Siska et al.
patent: 5139344 (1992-08-01), Mutter

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