|
|
|
Energy generation from waste
|
|
Putting the heat on waste
Thermal waste treatment offers the possibility of providing valuable energy with the lowest possible ecological impact. The utilization of the energy contained in the garbage reduces the use of fossil fuels and decreases CO2 emissions, while at the same time destroying most of the harmful substances contained in the garbage. To ensure smooth operation, measurement instrumentation is needed at a number of different sites in the power plant.
|
Quantity measurement of combustion air with VEGADIF 55
A predefined quantity of waste material from the waste bunker is placed onto the combustion grate and transported through the furnace. To ensure that the waste is burned completely, temperatures up to 1000° degrees Celsius (1832° F) must be reached. Of decisive importance here are the control and monitoring of the furnace: the amount of air and the air pressure must be measured with precision.
The air quantity is measured in the main air pipelines by means of a Venturi tube. This is a defined constriction in the pipe in which the pressure drops by a few mbars. A VEGADIF 55 with a small measuring range measures this pressure drop precisely and calculates the air quantity from this value.
|
Pressure measurement of the combustion air with VEGABAR 52
The pressure in the furnace is kept constantly slightly below that of the atmosphere so that sufficient air is drawn in for combustion. To monitor this, the air pressure in the respective main air pipe is measured with a VEGABAR 52 pressure transmitter. Pressures in the area of about 25 to 60 mbar are registered.
|
|
|
|
|
|
|
VEGADIF 55
- metallic differential pressure measuring cell
- small measuring ranges up to 10 mbar (0.145 psig)
- accuracy class 0.1
|
|
 |
VEGABAR 52
- high overload resistance
- special vibration resistance
- long-term drift smaller 0.1 %/2 years
|
|
|
|
|
|
|
|
|
|
|
Netherlands
