Waste Heat Boilers

Convert Industrial Waste Heat into Valuable Energy

Waste Heat Boilers are specialized pressure vessels designed to recover the energy of high-temperature flue gases generated by industrial processes and normally exhausted into the atmosphere through chimneys. These boilers contain a heat-absorbing fluid (usually water) on one side and channels through which the heat-absorbing flue gases circulate on the other. They convert waste energy into usable forms such as steam or hot water.

Energy Efficiency and Return on Investment:

Every fuel-burning facility releases waste heat through a chimney. However, investing in a waste heat boiler only makes sense after a detailed feasibility study. At STS Global Machinery, we analyze your project's process for efficiently utilizing recovered energy and offer solutions that will ensure you receive the shortest payback period for your investment.

Design Criteria and Material Selection:

In the design of waste heat boilers, critical factors for long-lasting and safe operation of the system are taken into account:

Corrosion Control: Materials resistant to corrosive substances such as sulfuric acid that may form as a result of condensation in flue gases are selected. This preserves the material strength of pressure-exposed areas and prevents system failures.
Clogging Precautions: The system is equipped with discharge valves to prevent condensation from clogging the flue gas path and damaging the heater pipes. This prevents a decrease in exchanger efficiency and shortened component life.

Operational Safety and Efficiency:

For the system to operate efficiently, it is essential that the main boiler's chimney draft is not adversely affected. Pressure drops from the waste heat boiler can reduce the combustion efficiency of the main system. Therefore, our designs are optimized to fully integrate with the existing system. Furthermore, all our boilers are equipped with the necessary measuring devices and safety valves to continuously monitor critical system data such as pressure, temperature, and flow rate and ensure safety.