Overview:

The TTA has been developed to provide an accurate diagnostic tool for the measurement of temperature and velocity up and/or downstream of automotive heat exchangers, and in conduits of arbirtrary shapes.

Digital Flow Technologies, Inc. (DFTI) will fabricate TTA frames to fit the face area of the customer’s heat exchanger, or flow conduit.

Capabilities:

• Resolve the spatially averaged veolcity and temperature distributions for the N segments (cells) on the aft face of a heat exchanger or the N segments of a conduit.
• Obtain an accurate measure of the total flow rate and the transferred thermal enegry through the radiator from the summations of the data

Publications:

Download the TTA brochure.

Download the TTA Revision 1.0 Manual

View the TTA Revision 2.0 Manual

• A COMMENTARY ON AIRFLOW MEASUREMENTS IN AN AUTOMOTIVE COOLING CIRCUIT

  John F. Foss

  Download: Paper(MSword)

• THE THERMAL TRANSIENT ANEMOMETER (A manuscript published in the journal, Measurement Science and Technology, November 2004, Volume 15, Number 11 )

  John F. Foss

  Download: Paper(MSword)

• Thermal Transient Anemometer (A PowerPoint presentation at VTMS-7 - May 2005)

  John F. Foss

  Download: Presenation(MSppt)

• Ambient Temperature and Free Stream Turbulence Effects on the Thermal Transient Anemometer

  J. F. Foss, J. A. Peabody, M. J. Norconk and A. R. Lawrenz

  Download: Paper(PDF)

Pictures:

Prototype TTA velocity and temperature measurement cell

3x4 Sensor Array with Connector

Example location of TTA in use

TTA Control Electronics Chasis

TTA computer interface