Heat-Transfer Fluids
Water, glycol mixtures and specialized fluids viewed by thermal performance and service conditions.
What this topic covers
Water, glycol mixtures and specialized fluids viewed by thermal performance and service conditions.
Core thermal ideas
Water has strong heat-transfer properties and is widely used where freezing and contamination are controlled.
Glycol mixtures can provide freeze protection but generally change viscosity and heat capacity.
Fluid selection also considers corrosion compatibility, environmental requirements, fire risk, toxicity and maintenance.
System tradeoffs
Temperature difference drives heat transfer, while flow, area, fouling and thermal resistance determine how easily heat can move.
What to monitor
Water chemistry, refrigerants and process fluids require site-specific safety and environmental controls.
Lifecycle perspective
A lifecycle view includes energy, water, maintenance, fouling, reliability and future load—not only nameplate cooling capacity.