Thermic Fluid Heaters.pptx

Thermic fluid heaters are heating equipment used in various industries where heat transfer is the primary requirement for processes, rather than pressure. They are efficient and effective in heating applications that require high temperatures and low pressures, such as the food and beverage, chemical, and pharmaceutical industries.

Thermic fluid heaters use high-viscosity oil as a heating medium and are preferred when pressure is not desired in a process, and using a boiler for high-temperature services would be costly. These heaters can improve process consistency, reduce downtime, and increase profitability.

Thermodyne Engineering Systems is a manufacturer and supplier of thermic fluid heaters and heating systems. Their product, "Fluidtherm," is a thermic fluid heater that can heat various fluids, including thermal oil, petroleum oil, Therminol, and water. They have supplied numerous heating systems to clients in India and exported to other companies.

Thermic fluid heaters find applications in industries such as food processing, rubber and plastics, publishing and printing, metal fabrication, textile, paper, natural gas processing, crude oil extraction and processing, chemical, plywood and laminates, and confectionery.

The design of a fluidtherm thermic fluid heater typically consists of two concentric coils, with the inner coil acting as a radiation zone and the outer coil acting as a convection zone. The convective heat transfer between the flue gas and the fluid is enhanced by the higher velocity of the flue gas between the coils and the outer shell. The number of passes in the heater can be three or four, with the efficiency increasing with a higher number of passes.

Thermic fluid heaters like Fluidtherm can achieve a maximum temperature of 350°C, although higher temperatures can be achieved as long as they do not exceed the auto-ignition temperature of the fluid. Deaerator and expansion tanks are also part of the system, with the expansion tank accommodating the increased volume of fluid due to temperature rise, and the deaerator tank venting out air from the fluid to improve heat transfer.

Thermic fluid heaters can utilize various fuels, including solid fuels like wood, coal, petcoke, and rice husk; liquid fuels like light and heavy oils; and gaseous fuels like natural gas and liquefied petroleum gas.

The advantages of thermic fluid heaters include high capacity heating, fully automatic operation to maintain the desired temperature, high system efficiency resulting in reduced operating costs, suitability for high-temperature heating up to 300°C, ease of installation, the ability to operate on a variety of fuels, failsafe design with dependable safety instruments, rugged construction, long thermic fluid and heater coil life due to high flow rate, and reliable after-sales service. The capacity of Fluidtherm heaters ranges from 1 Lac Kcal/hr to 50 Lac Kcal/hr.

1. Thermic Fluid Heaters A brief overview of thermic fluid heaters and their usage in various industries

2. Thermic fluid heaters are used in industries where heat transfer is the primary requirement for processes They are preferred when pressure is not desired and using a boiler would be costly High-viscosity oil is used as a heating medium in thermic fluid heaters They are efficient and effective in heating applications requiring high temperatures and low pressures Introduction to Thermic Fluid Heaters

3. Applications of Thermic Fluid Heaters Thermic fluid heaters find usage in food and beverage industry They are used in chemical industry for heating processes They are popular in pharmaceutical industry for their effectiveness Thermic fluid heaters can be used in various other industries as well

4. Thermic fluid is heated in a closed loop system The heated fluid then circulates through heat exchanger to transfer heat to the process fluid A pump is used to circulate the thermic fluid in the system Thermic fluid heaters require less maintenance than boilers Working Principle of Thermic Fluid Heater

5. Advantages of Thermic Fluid Heaters over Boilers Thermic fluid heater are cost effective for high-temperature services They are easier to install and operate than boilers Thermic fluid heaters require less space They provide uniform heating in the process fluid They can operate at low pressures

6. Disadvantages of Thermic Fluid Heater The viscosity of the fluid needs to be checked regularly The initial cost of thermic fluid heaters is higher than that of boilers They require continuous monitoring to avoid overloading or overheating Leaks in the system can cause fluid losses

7. Maintenance of Thermic Fluid Heater Regular inspection and cleaning of the system is necessary The thermic fluid needs to be drained and refilled periodically The heat transfer surfaces need to be cleaned to avoid clogging The system should be checked for leaks and repaired as soon as possible

8. Thermic fluid heaters are efficient heating equipment for various industries They have several advantages over boilers and find usage in high-temperature services Regular maintenance and monitoring of the system is necessary to avoid downtime Thermic fluid heaters provide a cost-effective solution for heating processes Conclusion

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