Hydrofluoroolefins and methods of using same
A hydrofluoroolefin compound is represented by the following general formula (I): where R f is a linear or branched perfluorinated alkyl group containing 2-10 carbon atoms and optionally contains (i) at least one catenated heteroatom selected from O or N; or (ii) a ring structure having 3 to 6 ring carbon atoms that optionally contains one or more catentated heteroatoms selected from O or N.
1. A hydrofluoroolefin compound represented by the following general formula (I):
wherein R f is a linear or branched perfluorinated alkyl group containing 2-10 carbon atoms and optionally contains: (i) at least one catenated heteroatom selected from O or N; or (ii) a ring structure having 3 to 6 ring carbon atoms that optionally contains one or more catentated heteroatoms selected from O or N.
2. The hydrofluoroolefin compound of claim 1 , wherein R f contains 3-10 carbon atoms.
3. The hydrofluoroolefin compound according to claim 1 , wherein R f is linear.
4. The hydrofluoroolefin compound according to claim 1 , wherein R f is branched.
5. The hydrofluoroolefin compound according to claim 1 , wherein R f contains at least one catenated heteroatom selected from O or N.
6. A working fluid comprising hydrofluoroolefin compound according to claim 1 , wherein the hydrofluroolefin compound is present in the working fluid at an amount of at least 25% by weight based on the total weight of the working fluid.
7. An apparatus for heat transfer comprising:
a device; and
a mechanism for transferring heat to or from the device, the mechanism comprising a heat transfer fluid that comprises the working fluid according to claim 6 .
8. The apparatus for heat transfer according to claim 7 , wherein the device is selected from a microprocessor, a semiconductor wafer used to manufacture a semiconductor device, a power control semiconductor, an electrochemical cell, an electrical distribution switch gear, a power transformer, a circuit board, a multi-chip module, a packaged or unpackaged semiconductor device, a fuel cell, and a laser.
9. The apparatus for heat transfer according to claim 8 , wherein the mechanism for transferring heat is a component in a system for maintaining a temperature or temperature range of an electronic device.
10. A method of transferring heat comprising:
providing a device; and
transferring heat to or from the device using a heat transfer fluid that comprises the working fluid according to claim 6 .