What will happen if the stack temperature in a boiler continues to rise excessively?

When the stack temperature in a boiler continues to rise excessively, it signifies that the system may be experiencing issues that warrant maintenance. An increase in stack temperature typically indicates that the flue gases are not being expelled efficiently, which can be due to factors such as incomplete combustion, scaling in the heat exchange surfaces, or blockages in the stack or flue.

Monitoring stack temperature is critical for identifying operational problems early; if it's higher than normal, it suggests that the boiler is not functioning at peak efficiency. This could lead to wasted fuel, increased emissions, and potential safety hazards. By recognizing this temperature rise as a signal for maintenance, operators can take corrective actions to ensure the boiler operates safely and efficiently.

In this context, maintaining optimal operations and efficiency necessitates addressing any anomalies, such as rising stack temperatures, through appropriate maintenance measures. This preventive approach not only helps in prolonging the lifespan of the equipment but also in ensuring compliance with environmental standards.