|
Читайте также: |
| The Ringelmann test is the measure of the opacity by optical comparison with the Ringelmann scale, which allows a classification of the grey scale values of waste gas fume. The scale is divided into six fields ranging from white to black. | ||||||||||||
| Colour | ||||||||||||
| Scale Factor | ||||||||||||
| % black |
Appendix 2 - Combustion Emissions Limits for boilers and air heaters
| Boilers and Air Heaters | All boilers (including steam and heating/hot water boilers) and ovens with no contact between product/process air and the combustion air must comply with the minimum requirements specified below. |
| Fuel type (Reference O2) | Particulates mg/Nm3 (1) | NOx mg/Nm3 (1) (4) | CO mg/Nm3 (1) | SOx mg/Nm3 |
| Solid fuel (at 11% O2, dry) Includes coal, wood, coffee grounds etc | 250(2) 150(3) | 2000 (2) 650 (3) | Maximum fuel sulphur content 1.5% (5) or 2000 mg/Nm3 | |
| Heavy fuel oil (at 3% O2, dry) | 250(2) 150(3) | 2000 (2) 1000 (3) | Maximum fuel sulphur content 1.5% (5) or 2000 mg/Nm3 | |
| Light fuel oil and gas | No specific limits set as not applicable to these fuels. Light oil and gas burners must be maintained according to manufacturer’s recommendations to maintain optimum efficiency. | |||
| Notes | 1) All values corrected to the specified flue gas O2 and Standard Temperature and Pressure (0 degC and 101.325 kPa). 2) Existing plants 3) New plants and installations 4) To reduce NOx convert to lighter fuel quality if financially competitive 5) May be increased to 3% where fuel with a sulphur level below 1.5% is not available in the market. | |||
| Calculations: NOX levels | · NOx are expressed as NO2 · Combustion gases typically contain > 95% NO and only traces of NO2. · Where data is available as NO instead of NOx the conversion ratio of NO/NO2 = 1.53 |
| Emission correction to reference O2 % | Use the following formulae to correct emissions where the actual flue gas O2 is not equal to the required reference O2: Ereference%O2 =Emeasured%O2 ((21- O2 reference) / (21-O2 measured)) |
| Calculations: ppm: mg/Nm3 ratio | To convert from ppm to mg/Nm3: · Convert your data from your actual conditions to standard conditions · Convert your data in ppm (volume per volume) to mg/Nm3 (mass per volume) · Correct your data if the flue gas oxygen level is not at the specified level.
|
Appendix 3 – Prime Power Generation
| Reciprocating Engines for Prime Power Generation | All reciprocating engines for prime power generation must comply with the minimum requirements specified below. These limits are not applicable for emergency standby generation if they operate less than 500 hours per year. |
Дата добавления: 2015-09-11; просмотров: 82 | Поможем написать вашу работу | Нарушение авторских прав |