Table of Contents
What is dowtherm process?
DOWTHERM™ A. Synthetic Organic Heat Transfer Fluid for Liquid & Vapor Phase Processes for Applications between (60°F and 750°F). DOWTHERM™ G. Synthetic Organic Thermal Fluid for Liquid Phase Heat Transfer Processes for Applications between (20°F and 675°F).
What is dowtherm used for?
The most thermally stable synthetic organic heat transfer fluid, designed for high temperature heat transfer applications up to 400°C (750°F) as well as to collect, transport and store heat in CSP systems. This fluid can operate in either liquid or vapor phase.
What is Dowtherm oil?
Dowtherm fluids are 100% synthetic organic fluids which offer exceptional thermal stability and value when used in operating ranges of -80°C to +400°C. This stability translates to maximum efficiency, longest fluid life and optimum operational economics.
Is dowtherm a toxic?
Highly toxic to fish and/or other aquatic organisms. Eye Contact: May cause slight temporary eye irritation. Skin Contact: Repeated contact may cause moderate skin irritation with local redness. Skin Absorption: Prolonged skin contact is unlikely to result in absorption of harmful amounts.
What is dowtherm made of?
DOWTHERM™ A is a synthetic organic thermal fluid based on a eutectic mixture of two highly stable compounds (biphenyl (C12H10) and diphenyl oxide (C12H10O)).
How do you heat up dowtherm?
Units are heated by burning gas, oil, and coal, as well as by electricity. Also, in certain operations, DOWTHERM fluids can be heated by high pressure steam. This latter technique is used on jacketed vessels where pressure limitations require the low pressure of DOWTHERM fluids.
What is dowtherm boiler?
DOWTHERM A heat transfer fluid may be used in systems employing either vapor or liquid heating. The recommended temperature use range is 60°F to 750°F (16°C to 400°C), and the corresponding vapor pressure range is from atmospheric to 138 psig. These systems may operate at lower pressures than with DOWTHERM A fluid.
Is dowtherm a flammable?
Instead of steam, Dowtherm is used as a heating medium. Unlike steam, this liquid is heated to approximately 600 Degrees F. and operated at a low pressure of 30 psig. At ambient pressure and temperature, Dowtherm is not flammable because it has a flashpoint of approximately 400 Degrees F.
What is the boiling point of dowtherm?
about 258° C.
This compound can be used for heating purposes in a similar manner to steam but with the additional advantage of higher temperatures for the same pressure. The boiling point at atmospheric pressure is about 258° C. and at 135 Ib. per square inch gauge pressure it gives a temperature of 400° C.
What is the operating range of DOWTHERM RP?
Dowtherm RP is a liquid phase heat transfer fluid with an operating range of -20°C to 350°C. This product minimizes the risk of fouling, scaling and coking by preventing the formation of high boilers upon thermal degradation.
What is the thermal stability of DOWTHERM fluids?
Dowtherm fluids are 100% synthetic organic fluids which offer exceptional thermal stability and value when used in operating ranges of -80°C to +400°C. This stability translates to maximum efficiency, longest fluid life and optimum operational economics.
When was the Dowtherm heat transfer fluid invented?
Dowtherm brand heat transfer fluids were first introduced in 1929 by Dow for use at high temperatures when the use of steam or hot water is not practical. For example, DOWTHERM™ A Fluid has set the industry standard for over 70 years –precisely because of its excellent thermal stability in applications up to 400 °C (750 °F.)
How is Dowtherm used as a heating medium?
Instead of steam, Dowtherm is used as a heating medium. Unlike steam, this liquid is heated to approximately 600 Degrees F. and operated at a low pressure of 30 psig. At ambient pressure and temperature, Dowtherm is not flammable because it has a flashpoint of approximately 400 Degrees F.