DOWCAL™ Geo-200 Heat Transfer Fluid

What is DOWCAL™ Geo-200 Heat Transfer Fluid?

A propylene glycol-based Geothermal Fluid developed to provide improved performance and safety for geothermal heat pumps. DOWCAL™ Geothermal Fluids were designed to overcome the drawbacks of alternative fluids, providing greater assurance that geothermal systems will repay their initial investment costs in energy savings and in years of reliable, safe, and economical operation.

Uses

Ground source heat pumps

Benefits

Included on positive list of LAWA (German Working Group on water issues of the Federal States and the Federal Government represented by the Federal Environment Ministry)
Free of borate, nitrate, and CMR (Carcinogenic, mutagenic, and reprotoxic) classified substances
Can be used where toxicity is a concern. Propylene glycol-based fluid that is low in acute oral toxicity
Nonflammable. When diluted in water at recommended concentrations, no measurable flash points. No fire hazard compared to alcohol-based fluids
Efficient heat transfer. Changing from alcohol-based fluids to DOWCAL™ Geothermal Fluids will likely have no measurable impact on overall system heat transfer efficiency (individual fluid coefficients differ)
Contains Dow signature corrosion inhibitors to protect metals. (Advantage over methanol, water, or uninhibited glycols)
Can be diluted to a 20% concentration while maintaining Pumping Efficiency and providing Corrosion Protection

Geothermal Pipe Coils at the bottom of a Trench

DOWCAL™ Geothermal Fluids

DOWCAL™ Geothermal Fluids were designed to overcome the drawbacks of alternative fluids, providing greater assurance that geothermal systems will repay their initial investment costs in energy savings and in years of reliable, safe and economical operation. DOWCAL™ Geo-100 and DOWCAL™ Geo-200 are on positive list of LAWA (German Working Group on water issues of the Federal States and the Federal Government represented by the Federal Environment Ministry), meeting all requirements for new formulations.

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DOWCAL™ inhibited glycol-based heat transfer fluids

DOWCAL™ fluids are used successfully in a wide range of applications, from renewable energy, HVAC systems and geothermal heat pumps, to chemical, pharmaceutical and food processing.

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Properties

Product Use and Formulating
Recommended Concentration	20 to 60 %

Typical Properties
Color	Colorless or dyed according to local requirements
Density	at 20°C 1.053 g/cm3
Fluid Base	Propylene Glycol
pH	50% vol water 9.0 – 10.0
Reserve Alkalinity	(ml (0.1 N HCL)) 9.0

DOWCAL™ Geo-200 Heat Transfer Fluid

What is DOWCAL™ Geo-200 Heat Transfer Fluid?

Uses

Benefits

DOWCAL™ Geothermal Fluids

DOWCAL™ inhibited glycol-based heat transfer fluids

Properties

Product Use and Formulating

Typical Properties

RESOURCES

EDUCATION

CORPORATE

LEGAL