Heat transfer system, fluid, and method
AssigneePrestone Products Corporation
InventorsFilipe J. Marinho, Bo Yang
Life of this patent
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Abstract
Disclosed herein is a heat transfer system comprising a circulation loop defining a flow path for a heat transfer fluid, and a heat transfer fluid comprising a liquid coolant, a siloxane corrosion inhibitor of formula R3-Si—[O—Si(R)2]x-OSiR3, wherein R is independently an alkyl group or a polyalkylene oxide copolymer of 1 to 200 carbons, x is from 0 to 100, and further wherein at least one alkyl group and at least one polyalkylene oxide copolymer are present, and a non-conductive polydiorganosiloxane antifoam agent, wherein the conductivity of the heat transfer fluid is less than about 100 μS/cm, and wherein the heat transfer system comprises aluminum, magnesium, or a combination thereof, in intimate contact with the heat transfer fluid.
Claims11
A heat transfer system, comprising:
- a circulation loop defining a flow path for a heat transfer fluid;
- and
- a heat transfer fluid, comprising:
- a liquid coolant;
- a siloxane corrosion inhibitor of formula R3—Si—[O—Si(R)2]x—OSiR3, wherein R is independently an alkyl group or a polyalkylene oxide copolymer of 1 to 200 carbons, x is from 0 to 100, and further wherein at least one alkyl group and at least one polyalkylene oxide copolymer are present;
- and
- a non-conductive polydiorganosiloxane antifoam agent;
- wherein the conductivity of the heat transfer fluid is less than about 100 μS/cm;
- and
- wherein the heat transfer system comprises aluminum, magnesium, or a combination thereof, in intimate contact with the heat transfer fluid.
A heat transfer method, comprising:
- contacting a heat transfer system with a heat transfer fluid;
- wherein the heat transfer system comprises:
- a circulation loop defining a flow path for the heat transfer fluid;
- and
- aluminum, magnesium, or a combination thereof;
- wherein the heat transfer fluid comprises:
- a liquid coolant;
- a siloxane corrosion inhibitor of formula R3—Si—[O—Si(R)2]x—OSiR3, wherein R is independently an alkyl group or a polyalkylene oxide copolymer of 1 to 200 carbons, x is from 0 to 100, and further wherein at least one alkyl group and at least one polyalkylene oxide copolymer are present;
- and
- a non-conductive polydiorganosiloxane antifoam agent;
- wherein the conductivity of the heat transfer fluid is less than about 100 μS/cm;
- and
- wherein the aluminum, magnesium, or combination thereof is in intimate contact with the heat transfer fluid.
Dependencies are inferred from the claim text.