4976 Provident Dr. Cincinnati, Oh. 45246

Radiant Heat Source

ESI’s medium temperature Radiant Heat Source consists of quartz halogen bulbs that have been designed and fabricated for thermal damage studies.

The image on the right displays a partially assembled multi lampRadiant Heat Source image1

array capable of holding, cooling, and energizing several bulbs simultaneously.

Each bulb is rated for 820W and requires thermal management which is

provided by an external air supply.


Radiant Heat Source image2

The following are characteristics for a single bulb in steady state :

-Each lamp has an illuminance of 4,500 lumen/m2

-Steady state in approximately 700 millisec


Radiant Heat Source image3

The temperature field below the quartz halogen test apparatus was recorded using an array of thermocouples.

The maximum temperature of the glass enclosure of the bulbs were recorded and found to be at 425 °C +/- 25 °C.