Immersion cooling system that enables increased heat flux at heat-generating components of computing devices

A method of transferring heat from a heat-generating component at least partially submerged in a dielectric working fluid in an immersion cooling system, the method comprising:

• pressurizing a diaphragm, wherein a means for generating heat and the dielectric working fluid are positioned in an immersion tank of the immersion cooling system, and wherein the diaphragm is positioned in a vapor space of the immersion tank;
• increasing a vapor space pressure of the vapor space;
• based on increasing the vapor space pressure, causing an increase in a saturation temperature of the dielectric working fluid;
• and
• causing an increase in a heat flux from the means for generating heat to the dielectric working fluid based on increasing the saturation temperature.

An immersion cooling system, comprising:

• an immersion tank that is configured to retain a dielectric working fluid and to hold a plurality of means for computing submerged in the dielectric working fluid;
• a condenser that is configured to cause condensation of vaporized working fluid;
• and
• a diaphragm that changes a vapor space pressure in a vapor space of the immersion tank, wherein changing the vapor space pressure also changes a saturation temperature of the dielectric working fluid.