cart.general.title

What is the relationship between temperature and pressure in the boiler?

Temperature and pressure in the boiler are two important factors that affect the performance and safety of the thermal system. In this article, we will explore the relationship between temperature and pressure in the boiler, as well as the principles and measures to control them.

Temperature and pressure in the boiler have a direct relationship with each other. When the temperature of water in the boiler increases, the pressure also increases accordingly. Conversely, when the temperature of water decreases, the pressure also decreases. This can be explained by the following formula:

P = k * T

Where P is pressure, T is temperature, k is a constant depending on the nature of the fluid. To accurately determine the parameters of steam at a certain temperature or pressure, you can refer to the table below: (Download for reference later)

Steam parameters table

The temperature and pressure in the boiler need to be controlled at appropriate levels to ensure system efficiency and safety. If the temperature and pressure are too high, it can cause problems such as:

  • Cracking or explosion of the boiler due to pressure exceeding the allowable limit.
  • Reduced lifespan of equipment and pipes due to corrosion and oxidation due to high temperatures.
  • Increased fuel costs due to heat loss through the surfaces of the boiler.
  • Decreased quality of steam due to the presence of water or other impurities.

If the temperature and pressure are too low, problems such as:

  • Reduced boiler efficiency due to insufficient heat to turn water into steam.
  • Increased risk of scale or fouling due to water not boiling cleanly.
  • Increased risk of condensation or leaks due to insufficient pressure to maintain vapor flow.

Therefore, to control temperature and pressure in the boiler, the following devices and methods can be used:

  • Thermal controller: is a device used to adjust the amount of fuel supplied to the boiler to maintain the desired temperature. Thermal controllers can be mechanical or electronic, relying on thermal sensors to respond to changes in temperature.
  • Pressure relief valve: is a device used to reduce pressure in the boiler when the pressure exceeds a safe level. Pressure relief valves can be automatic or manual, relying on pressure sensors to respond to changes in pressure.
  • Condenser: is a device used to recover water from steam after passing through steam-using equipment. The condenser helps reduce pressure in the boiler, as well as save fuel and water.
  • Filter: is a device used to remove impurities from water before entering the boiler. Filters help improve the quality of steam, as well as protect equipment and pipes from corrosion or fouling.

Hopefully this article has helped you better understand the relationship between temperature and pressure in a boiler, as well as the principles and measures to control them. If you have any questions or suggestions, please leave a comment below. Thank you for reading and have a good day and a peaceful new year!