Installing an economiser on your boiler will increase its efficiency and save you 4-5% on energy and money. Essentially, it recovers waste heat (free energy) and transfers it to the incoming feedwater, lowering the amount of fuel required by the boiler to achieve optimal operating temperatures.
Want to know more? Watch our CEO Alan Keogh explain the benefits of adding an economiser to your industrial boiler.
An economiser is a heat exchanger that recovers waste heat from the flue gases of the boiler and uses it to preheat the incoming feed-water, reducing the amount of heat that needs to be added by the boiler to raise the feed-water temperature to its required level. This process reduces the overall fuel consumption and improves the boiler's efficiency, resulting in energy and cost savings. Here are some ways an economiser can improve your boiler's performance:
Heat Recovery:
Flue gases from the boiler typically leave the system at high temperatures. An economiser captures this waste heat and transfers it to the incoming feed-water, preheating it before it enters the boiler. This reduces the amount of fuel the boiler needs to burn to reach the desired operating temperature, resulting in energy savings.
Increased Boiler Efficiency:
By preheating the feed-water, an economiser can help the boiler operate more efficiently. The higher temperature of the feed-water reduces the temperature difference between the feed-water and the flue gases, which in turn reduces heat loss during combustion. This can result in improved boiler efficiency, as more heat is used to generate steam instead of being lost in the flue gases.
Lower Fuel Consumption:
The use of an economiser can result in lower fuel consumption, as the recovered waste heat is utilised to preheat the feed-water. This reduces the amount of fuel needed to raise the temperature of the feed-water to the desired level, leading to energy savings and reduced fuel costs.
Cost Savings:
Improved boiler efficiency and reduced fuel consumption can result in cost savings over the long term. The initial investment in installing an economiser can be offset by the energy savings and reduced fuel costs over the lifespan of the boiler.
Environmental Benefits:
By reducing fuel consumption and improving boiler efficiency, an economiser can also contribute to environmental benefits by reducing greenhouse gas emissions associated with burning fossil fuels.