Impact on Life Time of “Two-Phase” Heat Transfer Components

The life time of “TWO-PHASE”-Loop components may be limited by an inertgas generation.

Noncondensing gas can be generated from three basic processes:

• gas, trapped or adsorbed at structure material or solved in the heat carrier
• gas, generated as a corrosion product
• gas, generated by a decomposition of the heat carrier.

In this paper we describe the responsible influences for the gas generation and calculate the generation-rate of the gas production process according a theoretical, physical model and compare it to test results.