02164nab a2200253 4500 20260520004608.0 260224s2018 xxu ing Inglés Tuma, Phillip 59826 Schulz, Jay 59827 Roy, Robert 59828 Bonk, Jason 59829 DeLorme, Michael 59830 Logan, Perry 59831 An exposure assessment approach for potential thermal degradation compounds in 2-phase immersion cooling operations sept. 2018 04/11/2020 ; 04/11/2020 7 p. ; 369-375 Passive 2-phase immersion cooling (P2PIC) is a technique for cooling computers with the potential to reduce capital and operating costs within datacenters. Computers cooled by P2PIC are submerged in a fluorochemical liquid that boils (hence 2-phase) from the heat generating components. Although the tanks in which this is done are normally sealed and vented outdoors, they are opened periodically for maintenance. The volatility of the liquids suggests the need for risk assessments relating to inhalation of the liquids' vapor under these normal operating conditions. Fourier transfer infrared vapor concentration measurements gathered during spill and transfer simulation and at two proof-of-concept P2PIC installations show inhalation concentrations substantially below exposure guidelines. Liquids can be thermally decomposed under certain failure scenarios to create decomposition products with greater hazard and risk profiles. A methodology is presented for estimating possible human exposure to such products. The exposure levels that result are interpreted in the context of the most toxic of the thermal decomposition products known to form and suggest employee exposure substantially below published occupational exposure and emergency response guidelines. Fluid conditioning systems and gas monitoring equipment further reduce the risk of human exposure to fluid vapor and thermal decomposition products. 3 Process safety progress ARTICULO 193700 193700 0 0 0 0 261419 BAAB BAAB 2026-03-06 200066065 0 200066065 2026-03-06 00:38:40 2026-03-06 ARTICULO