Measurement of thermal conductivity and specific heat

Details Measurement of thermal conductivity and specific heat Measurement of thermal conductivity and specific heat

1988-06-24

1990-07-24

Teska, Kevin J.

Boots, shoes, and leggings

7320416, 7320417, 73 2503, 364557, 374 30, 374 44, G06F 1520, G01K 1708

Patent

active

049440357

ABSTRACT:
A method and apparatus for determining both the thermal conductivity, k, and specific heat, c.sub.p, of a fluid of interest are disclosed. An embodiment uses proximately positioned resistive heater and thermal sensor coupled by the fluid of interest. A pulse of electrical energy is applied to the heater of a level and duration such that both a transient change and a substantially steady-state temperature occur in the sensor. The k of the fluid of interest is determined based upon a known relation between the sensor output and k at steady-state sensor temperature; and c.sub.p of the fluid of interest is determined based on a known relation among k, the rate of change of the sensor output during a transient temperature change in the sensor and c.sub.p.

REFERENCES:
patent: 3672205 (1972-06-01), Leidenfrost
patent: 3821895 (1974-07-01), Sunikawa et al.
patent: 3913379 (1975-10-01), Ruez et al.
patent: 4036051 (1977-07-01), Feu et al.
patent: 4063447 (1977-12-01), Mathison
patent: 4123934 (1978-11-01), Hoht
patent: 4164862 (1979-08-01), Jackson
patent: 4254654 (1981-03-01), Clouser et al.
patent: 4381154 (1983-04-01), Hammond, III
patent: 4461166 (1984-07-01), Gatten et al.
patent: 4478076 (1984-10-01), Bohrer
patent: 4478077 (1984-10-01), Bohrer et al.
patent: 4501144 (1985-02-01), Higashi et al.
patent: 4594879 (1986-06-01), Maeda et al.
patent: 4630938 (1986-12-01), Piorkowska-Palczewska et al.
patent: 4651564 (1987-03-01), Johnson et al.
patent: 4683159 (1987-07-01), Bohrer et al.
patent: 4697165 (1987-09-01), Ishigurd et al.
patent: 4734641 (1988-03-01), Byrd, Jr. et al.
patent: 4735082 (1988-04-01), Kolloff
patent: 4739657 (1988-04-01), Higashi et al.
patent: 4741198 (1988-05-01), Farren et al.
patent: 4783996 (1988-11-01), Ohta et al.
patent: 4825693 (1989-05-01), Bohrer et al.

Affiliated with

Also associated with

Rating

Measurement of thermal conductivity and specific heat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Measurement of thermal conductivity and specific heat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of thermal conductivity and specific heat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1272302