The COMBIMASS® syngas measuring system is a device combination in intermediate flange design and consists of two sensors: a heat conductivity sensor in the steady flow zone and a thermal sensor in the gas flow. The heat conductivity sensor determines the changing H2 concentration in the gas approximately and corrects the measurement signal of the thermal sensor accordingly.
- Thermal system for direct measurement of gas mass flow or standard volume flow in dry gases according to DIN1343
- Syngas from gasification processes (e.g. wood gasification)
- Measured value unaffected by pressure and temperature changes
- Compact, robust, reliable, wear-free, corrosion resistant sensor
- Easy Installation and nearly no maintenance
- Temperature compensation
- Upgradable due to the modular concept
Volume flow or mass flow measurements in synthesis gas (e.g. from wood gasifiers) are not trivial due to fluctuating gas compositions. Synthesis gas is a multi-component gas mixture, which essentially consists of a non-combustible portion of nitrogen/carbon dioxide and a combustible portion of hydrogen/carbon monoxide and small portions of hydrocarbons. Depending on the material to be gasified and fluctuations in material quality, the gas composition of the resulting gas also varies more or less. Each thermal mass flow meter of the COMBIMASS series is calibrated to one gas composition. If the actual gas composition deviates from the calibration conditions, greater measurement value falsifications may be expected. Especially, fluctuating hydrogen contents in the gas flow shift the measurement signal significantly.
An acceptable accuracy of the gas flow measurement can be achieved if the thermal sensor is combined with a heat conductivity sensor. With the help of the second sensor in the flow-calmed area, the hydrogen concentration in the gas can be determined. Resulting signal is read into the electronics of the thermal sensor via a 4-20 mA signal. The sensor then corrects its measured value accordingly. The COMBIMASS® syngas measuring system is thus a device combination in an in-line design with flanges on both ends.
Prior to delivery, each system is calibrated in our CAMASS® calibration laboratory, taking into consideration the actual operating conditions with regard to gas composition and installation situation (internal pipe diameter, flow direction, …) Officially pre-tested measuring sections, standard orifices and precision inclined tube manometers are used as references. In addition, calibrated pressure and temperature transmitters enable the exact determination of the operating conditions and volume flows on site. These measuring devices are regularly checked by external laboratories as part of ISO quality assurance. State-of-the-art computer and simulation programs based on decades of experience are used to calculate the calibration data and determine the correction factors for temperature compensation.
- Thermal mass flow meter & for industial and municipality applications
- flow measurement and analysis of syngas
COMBIMASS® basic
The field transmitters of the COMBIMASS® series are suitable for flow rate measurement of compressed air and technical gases at medium temperatures up to 130°C. The flow transmitters apply thermal dispersion technology in order to measure in dry gases directly the normal volumentric or gas mass flow, regardless of the operating pressure and temperature of the medium. COMBIMASS(R) convert transmits all data to the main PLC using all common types of communication.
COMBIMASS® eco
The field transmitters of the COMBIMASS® eco series are suitable for gas flow measurement and cover a wide range of different applications. The flow transmitters apply thermal dispersion technology in order to measure directly in dry gases the standard volumetric or gas mass flow according to DIN1343, regardless of the operating pressure and temperature of the medium. The instruments can be employed for process temperatures up to 220°C and are available in explosion proof versions. COMBIMASS(R) convert transmits all data to the main PLC using all common types of communication. Inline measuring systems enable accurate measurements even in very small pipelines and at high pressures. A special version is the COMBIMASS® eco hydrogen, which with its FC6 technology enables accurate and reliable measurements even in pure hydrogen.
Service & Support
For more information, please contact us:
Falls Sie Fragen zum Produkt haben, bitte kontaktieren Sie uns:
Binder Engineering GmbH
Tel +49 731 96826-0
support@bindergroup.info