Heat transfer fluids and methods of use

Abstract

This disclosure relates to heat transfer fluids for use in heat transfer systems. The heat transfer fluids comprise at least one non-aqueous dielectric heat transfer fluid. The non-aqueous dielectric heat transfer fluid has density (ρ), specific heat (c), and dynamic viscosity (μ) properties. The heat transfer fluids have a normalized effectiveness factor (NEF) as determined by the following equation: wherein DEFis a dimensional effectiveness factor for the heat transfer fluid that is determined based on an equation designated in Table 1 below for a selected pump and a selected heat transfer circuit dominant flow regime; wherein DEFis a dimensional effectiveness factor for a reference fluid that is determined using the same equation designated in Table 1 for DEFabove for the same selected pump and the same selected heat transfer circuit dominant flow regime; and wherein the heat transfer fluid has a NEFvalue equal to or greater than 1.0. This disclosure also provides a method for improving performance of a heat transfer system, a method for improving performance of an apparatus, and a method for selecting a heat transfer fluid for use in a heat transfer system. The heat transfer fluids and methods of this disclosure are applicable in situations where the heat transfer system is dominated by heat conveyance.