Why are plastics coated?? Coatings on plastics may be necessary for the following reasons:
1) this procedure is often cheaper than the necessary change of the color of the material;
2) manufacturing defects can be covered, how …
Daily Archives: January 11, 2015
Elements of the hydraulic system of the boiler room
Because of destiny, devices placed in boiler rooms can be divided into four groups:
1) heat and energy transfer devices,
2) regulating devices,
3) control and measurement devices,
4) safety devices.
The most important hydraulic devices are listed in the table, which can be attributed to each of the …
POLLUTANTS EMITTED DURING THE COMBUSTION OF FOSSIL FUELS
To the primary pollutants emitted, when burning fossil fuels belong:
- carbon dioxide (C02),
- Sulphur dioxide (S02),
- nitrogen oxides (NOv), which they include: nitrogen dioxide (N02) and nitric oxide (NO),
- carbon monoxide - carbon monoxide (CO),
- dust …