Our Model’s Measurements
| Measurement Object | Method |
|---|---|
| Flue gas | Full heat tracing method |
| NO2 | Ultraviolet-visible Differential Optical Absorption Spectroscopy (DOAS) or NDIR + GFC wavelength filter + L-Cell Long range filter |
| CO2 | NDIR + GFC wavelength filter + L-Cell Long range filter |
| SO2 | NDIR + GFC wavelength filter + L-Cell Long range filter |
| Flow Rate | Pitot tube method or matric method |
| Pressure | Isolation Diaphragm pressure transducer |
| Temperature | Platinum resistance temperature sensor |
| PFCs | Depending on density |
Specifications and Conditions
| System Parameter | Unit | Value |
|---|---|---|
| Sample Gas flow | L/min | 3 |
| Measuring Range | PPM | 0-1000ppm |
| Lowest measuring limit | ppb | < 250 ppb |
| Precision | ppb | <=500 ppb |
| Reaction time | second | <60 seconds |
| Redundancy Rate | % | 1 % |
| Accuracy of Full Scale | % | <1% full scale |
The Artem CEMS Module shall run safely for a long time in the harsh environment under the following conditions:
| Voltage of power supply: | 220 (± 10%) V AC/(50 ~ 60) Hz |
| Ambient temperature of system components inside the analysis cabin: | (5 ~ 40) ℃ |
| Ambient temperature of system components outside the analysis cabin: | (-30 ~ 60) ℃ |
| Humidity: | (0 ~ 90%) RH |
| Air pressure: | (86 ~ 106) kPa |
Sampling environment temperature: up to 800 ℃ The system is designed with protection against dust, rain, electromagnetic radiation, lightning, low temperature, and fire.
CEMS Data Collection and Monitoring System
UV Differential Optical Absorption Spectroscopy
The ultraviolet light emitted by the light source converges into the optical fiber and is transmitted to the gas chamber through the optical fiber. After passing through the gas chamber, it is absorbed by the the measured gas and transmitted to the spectrometer through the optical fiber. Inside the spectrometer, the light is split by a grating, after which the light signal is converted into an electrical signal by an array sensor to obtain continuous absorption spectrum of the gas. By virtue of Differential Optical Absorption Spectroscopy (DOAS) method, the concentration of the measured gas can be obtained based on this spectral information.
NDIR + GFC + CELL
When infrared radiation interacts with gas molecules, infrared light is absorbed by the gas molecules at a particular wavelength, causing vibration of the gas molecules. NDIR (Non-Dispersive Infrared) gas sensors detect decrease in transmitted infrared light which is in proportion to gas concentration.
NDIR + GFC + CELL
When infrared radiation interacts with gas molecules, infrared light is absorbed by the gas molecules at a particular wavelength, causing vibration of the gas molecules. NDIR (Non-Dispersive Infrared) gas sensors detect decrease in transmitted infrared light which is in proportion to gas concentration.
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