Hot Water Radiator for Waste Heat Recovery in a plant

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SUMMARY

The discussion focuses on designing a waste heat recovery system using hot water radiators in a plant with two ovens. The primary challenge is transferring heat from an oven operating at 270°C to another oven requiring 200°C, while preventing water from boiling and turning into steam, which complicates condensate management. The participant seeks solutions to maximize heat recovery without exceeding water's boiling point of 100°C. Effective engineering design strategies are essential for optimizing this heat transfer process.

PREREQUISITES
  • Understanding of thermodynamics principles, particularly heat transfer.
  • Familiarity with heat exchanger design and operation.
  • Knowledge of fluid dynamics, specifically in high-temperature applications.
  • Experience with condensate management systems in industrial settings.
NEXT STEPS
  • Research heat exchanger types suitable for high-temperature applications.
  • Explore methods for maintaining water in liquid form at elevated temperatures, such as pressurization.
  • Investigate condensate recovery systems to manage steam effectively.
  • Learn about thermal insulation techniques to minimize heat loss in transfer systems.
USEFUL FOR

Mechanical engineers, process engineers, and students involved in thermal systems design or waste heat recovery projects will benefit from this discussion.

mutia.p
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Hello, I'm new to this forum and I have a very important question about engineering design.

I am currently working on my final project in my undergraduate study. The project that I am doing is about waste heat recovery design. My case study is a plant with a couple of ovens. The plan is to use the waste heat from one oven to be used in the other oven.
My professor suggested to take the heat from inside the oven and transfer it to the other oven. The heat will be transferred via water and it is supposes to work like radiator.
The temperature of the oven where the heat will be recovered is 270 C and the other oven needs to be at 200 C.

The problem is, the plant needs to recover as much heat as possible, but water boils at 100 C. If the water turns into steam, there will be problem with condensates.

Any suggestion regarding to this?

Thanks!
 
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Does water always boil at 100 deg C?
 

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