Armfield Engineering Education
HEAT TRANSFER AND THERMODYNAMICS
HT10X Heat Transfer Teaching Equipment - Issue 6
• Modular
• Accurate
• Fast settling
• Computer compatible
The Armfield range of heat transfer laboratory teaching equipment comprises
seven small scale accessories which demonstrate the three basic modes of
heat transfer (conduction, convection and radiation) which result from differences
in temperature. The accessories may be individually connected to a common
bench top service unit (HT10X) which provides the necessary electrical supplies
and measurement facilities for investigation and comparison of the different
heat transfer characteristics.
Ordering Specification
• A bench top service unit designed to interface with a range of
heat transfer accessories.
• Provides a variable, stabilised 0-24V DC supply to the heater of
the heat transfer accessory, with a current capability of 9A.
• 10 temperature inputs and conditioning circuits for K-type thermocouples:
- 9 off, 4.0-200.00C, resolution 0.10C
- 3 off, 4.0-6000C, resolution 10C
• Instrumentation inputs for heater voltage, heater current, air velocity,
water flow, radiation and light meter.
• Can be linked to a PC via an optional USB interface device.
• Comprehensive user instruction manual supplied.
FEATURES
• Small inexpensive bench top equipment
• Common service unit avoids unnecessary repeat costs for control
and instrumentation
• Additional accessories and/or service units can be added later
• Investigates Conduction, Convection and Radiation including combined
effects, non-steady state and measurement errors
• Accurate quantitative results can be taken
• Fast settling times
• Optional data logging facility allows recording and analysis of
the results on a PC
• Educational software included with data logging package
• Results can be directly related to the theory provided
HT10X HEAT TRANSFER SERVICE UNIT
Technical Details
The service unit, housed in a robust steel enclosure and designed for bench
mounting, is essential equipment designed to allow operation of the seven
Armfield small scale heat transfer accessories HT11, HT12, HT13, HT14, HT15,
HT16 and HT17 which may be purchased singly.
Each of the heat transfer accessories may be separately connected to the
common service unit which incorporates the following features:-
• All electrical/electronic components mounted in a robust steel
enclosure and designed for bench mounting. Standard connections on the enclosure
for any of the seven interchangeable heat transfer accessories.
• Electrical circuits protected by RCD and appropriate circuit breakers.
• Regulated low voltage DC power supply to provide safe, variable
but constant power to the heating elements on the various accessories and
the circulating pump on the HT17. Variable over the range 0-24V DC and providing
immunity from fluctuations in the mains electrical supply.
• Temperature measurement of up to twelve K-type thermocouples installed
on the appropriate accessory. Temperature readings indicated on a digital
panel meter via selector switch:
• Other measurements indicated on digital panel meter via selector switch:
Voltage: V range 0-24.00V DC
Current: I range 0-9.00A
Radiation: R range 0-333 W/m2
Light: L range 0-234 Lux
Air velocity: Ua range 0-10.00m/sec
Cooling water flow rate: Fw range 0-1.50l/min
• Banana sockets provided on HT10X for any temperature measurement
signal to be exported to a suitable chart recorder. Multiway socket for
all measured signals to be logged using a PC via an optional Data Logging
Accessory.
• Sockets provided on HT10X for mains supply to accessory (where appropriate)
and variable low voltage DC supply to accessory (where appropriate).
Requirements
Single phase mains electrical supply:
HT10X-A: 220/240V/1ph/50Hz @ 6A
HT10X-B: 120V/1ph/60Hz @ 10A
HT10X-G: 220V/1ph/60Hz @ 6A
Shipping Specification
Volume: 0.05m³
Gross Weight: 15kg
Overall dimensions
Height: 0.24m
Width: 0.32m
Depth: 0.39m
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