The
RHF-ATX series consists of heat flux sensors designed for studies of fouling
behaviour during combustion processes. A RHF-ATX is
meant to be part of so-called “deposition probes” or “fouling sensors”
(typically designed by the user) in slagging and fouling experiments. A typical
sensor actually contains 4 separate heat flux / temperature sensors, so that
directional fouling information can be obtained as well.
Figure
1 Example of RHF-01-ATX ring heat flux senor consists of
four temperature / heat flux sensors (1), in a stainless steel housing (2), with
either flat connection for welding- (3) or alternatively threaded connections
(4). Metal sheathed wire (5) is usually extended with Teflon wire (7). The
sensor is typically incorporated in so-called deposition probes. Cooling should
be provided by either air or oil. Dimensions in the drawing are only serving as
example. All dimensions are in mm.
INTRODUCTION
- RHF-ATX-series has been designed to be used in
scientific as well as operational experiments to study fouling
behaviour.
- The user can build his own deposition probe or
fouling sensor, and use a RHF-ATX (or an adapted version of it) as a building block.
In practice many RHF-ATX sensors are built into probes that also measure
temperature and take gas samples (so-caled suction probes).
- RHF-ATX’s can be supplied in many different dimensions.
Compared to traditional deposition probe
designs, advantages of a RHF-ATX are that it can provide “directional” information,
and that calibration is no longer an issue. The latter is done at the
manufacturer. In addition the calibration is far better under control (even
traceable) and response times are faster.
RHF-01-ATX is provided with 4 calibration
constants; one for every sensor.
SUGGESTED USE
-
Studies of combustion
processes
-
Studies of fuel fouling
behaviour
MORE INFORMATION /
OPTIONS
- LICHTZEN
AE / AITNIX is specialised in manufacturing of
slagging and fouling sensors; the design can be adapted according to customer’s
requirements.
- LICHTZEN
AE / AITNIX can also build the entire deposition
probe.
RHF-ATX TYPICAL
SPECIFICATIONS
-
Sensitivity (nominal): 4 μV/kWm-2
-
Temperature range (sensor
including metal sheathed cable): to +800 °C
-
Temperature sensing (T): thermocouple type
K
-
Calibration traceability: NIST
-
Response time (typical): 120 s (90%)
-
Cooling: air or oil (user responsibility)
-
Dimensions: according to customer
specifications
