The single phase immersion cooling process is pretty simple. The cooling fluid never changes its physical state. Meaning there are no phase changes that take place to transfer heat. The coolant absorbs heat from the submerged component. Pumps circulate the heated coolant to a chiller. The fluid is circulated to a heat exchanging system where the heat transference takes place. It is then syphoned back to the holding tank to again absorb heat. The cycle continues as long as it is needed.
