Computer Controlled Boiling Heat Transfer Unit

Product Overview

The Computer Controlled Boiling Heat Transfer Unit, to investigate the different boiling modes, allowing both qualitative and quantitative studies, as well as evaluations of convective boiling, nucleate boiling, and film boiling.

Technical Specifications

ATENG 12850 — Computer Controlled Boiling Heat Transfer Unit

(for main items)

• With this unit there are several options and possibilities:
• Main items: 1, 2, 3, 4, 5 and 6.
• Optional items: 7, 8, 9 and 10.
• Let us describe first the main items (1 to 6):
• 1TCEC. Unit:

Bench-top unit.

Anodized aluminum frame and panels made of painted steel.

Main metallic elements made of stainless steel.

Diagram in the front panel with distribution of the elements similar

to the real one.

• Chamber:

Cylinder of boron silicate of high resistance.

• Internal diameter: 90 mm.
• External diameter: 100 mm.
• Length: 300 mm.

Heating resistance, computer controlled, of 690 W, stuffed in a

• copper cylinder of internal diameter: 12.7 mm, external diameter:
• 16 mm and length: 50 mm.

Heating resistance control from the computer by means of the

control a phase angle controller.

• Serpentine condenser: a copper tube plated with a surface of 0.043 m².

Load valve placed in the bottom part of the cylinder and it is used for

charging and discharging of the unit.

Water flow control valve located in the conduction line of water. It

regulates the water flow that inputs the serpentine.

Purge and safety valve.

• Five temperature sensors (“J” type): Unit: ATENG 12850

Temperature sensor to measure the temperature of the hot surface.

Temperature sensor to measure the temperature of the coolant.

Temperature sensor at the water inlet.

Temperature sensor at the water outlet.

Temperature sensor to determine the temperature of the saturated vapour.

• Pressure sensor, range: 0 – 6.5 bar.

The electric power consumed by the heating resistance is controlled from the computer and measured

by a wattmeter.

• Flow sensor, range: 0 – 6.5 l/min.

Temperature switch, ready to cut off the electric current if the temperature exceeds the alarm value.

Pressure switch.

Designed to employ the coolant SES-36.

• The complete unit includes as well:

Advanced Real-Time SCADA.

Open Control + Multicontrol + Real-Time Control.

Specialized Control Software based on LabVIEW.

National Instruments Data Acquisition board (250 KS/s, kilo samples per second).

Calibration exercises, which are included, teach the user how to calibrate a sensor and the

importance of checking the accuracy of the sensors before taking measurements.

Projector and/or electronic whiteboard compatibility allows the unit to be explained and

demonstrated to an entire class at one time.

Capable of doing applied research, real industrial simulation, training courses, etc.

Remote operation and control by the user and remote control for technical support

are always included.

Totally safe, utilizing 4 safety systems (Mechanical, Electrical, Electronic & Software).

Designed and manufactured under several quality standards.

Optional ICAI software to create, edit and carry out practical exercises, tests, exams

calculations, etc. Apart from monitoring user's knowledge and progress reached.

This unit has been designed for future expansion and integration. A common expansion is

the Scada-Net (ESN) System which enables multiple students to simultaneously

operate many units in a network.

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Complete Technical Specifications (for main items)

• TCEC/CIB. Control Interface Box:

The Control Interface Box is part of the SCADA system.

Control interface box with process diagram in the front panel and with the same distribution that

the different elements located in the unit, for an easy understanding by the student.

• All sensors, with their respective signals, are properly manipulated from -10V. to +10V. computer

output.

Sensors connectors in the interface have different pines numbers (from 2 to 16), to avoid

connection errors.

Single cable between the control interface box and computer.

The unit control elements are permanently computer controlled, without necessity of

changes or connections during the whole process test procedure.

Simultaneous visualization in the computer of all parameters involved in the process.

Calibration of all sensors involved in the process.

Real time curves representation about system responses.

Storage of all the process data and results in a file.

Graphic representation, in real time, of all the process/system responses.

All the actuators’ values can be changed at any time from the keyboard allowing the

analysis about curves and responses of the whole process.

All the actuators and sensors values and their responses are displayed on only one screen in the

computer.

TCEC/CIB

Shield and filtered signals to avoid external interferences.

Real time computer control with flexibility of modifications from the computer keyboard of the

parameters, at any moment during the process.

Real time computer control for pumps, compressors, heating elements, control valves, etc.

Real time computer control for parameters involved in the process simultaneously.

Open control allowing modifications, at any moment and in real time, of parameters involved in the

process simultaneously.

Three safety levels, one mechanical in the unit, another electronic in the control interface and

the third one in the control software.

• 3 DAB. Data Acquisition Board:

The Data Acquisition board is part of the SCADA system.

PCI Express Data acquisition board (National Instruments) to be placed in a computer slot. Bus

PCI Express.

• Analog input:

Number of channels= 16 single-ended or 8 differential. Resolution=16 bits, 1 in 65536.

• Sampling rate up to: 250 KS/s (kilo samples per second).
• Input range (V)=±10 V. Data transfers=DMA, interrupts, programmed I/0. DMA channels=6.
• Analog output:

Number of channels=2. Resolution=16 bits, 1 in 65536.

• Maximum output rate up to: 900 KS/s.

DAB

• Output range (V)=±10 V. Data transfers=DMA, interrupts, programmed I/0.
• Digital Input/Output:
• Number of channels=24 inputs/outputs. D0 or DI Sample Clock frequency: 0 to 100 MHz.
• Timing: Number of Counter/timers=4. Resolution: Counter/timers: 32 bits.

The Data Acquisition board model may change at any moment, providing the same or better

features than those required for the unit.

• 4 TCEC/CCSOF. Computer Control + Data Acquisition + Data Management Software:

The three softwares are part of the SCADA system.

Compatible with actual Windows operating systems. Graphic and intuitive simulation of the

process in screen. Compatible with the industry standards.

Registration and visualization of all process variables in an automatic and simultaneous way.

Flexible, open and multicontrol software, developed with actual windows graphic systems

acting simultaneously on all process parameters.

Management, processing, comparison and storage of data.

Sampling velocity up to 250 KS/s (kilo samples per second).

Calibration system for the sensors involved in the process.

It allows the registration of the alarms state and the graphic representation in real time.

Comparative analysis of the obtained data, after the process and modification of the conditions

during the process.

Open software, allowing the teacher to modify texts, instructions. Teacher’s and student’s TCEC/CCSOF

passwords to facilitate the teacher’s control on the student, and allowing the access to different work

levels.

This unit allows the 30 students of the classroom to visualize simultaneously all the results

and the manipulation of the unit, during the process, by using a projector or an electronic

whiteboard.

5 Cables and Accessories, for normal operation.

• 6Manuals:
• This unit is supplied with 8 manuals: Required services, Assembly and Installation, Interface and

Control software, Starting-up, Safety, Maintenance, Calibration & Practices manuals.

• References 1 to 6 are the main items: ATENG 12850 + TCEC/CIB + DAB + TCEC/CCSOF + Cables and Accessories + Manuals are included

in the minimum supply for enabling normal and full operation.

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