PID CONTROL
(Open Control + Multicontrol + Real Time Control)
- From COMPUTER (standard)
- From PLC (optional) Control
Interface Box SCADA. EDIBON Computer Control System Cables and Accessories Manuals Data Acquisition
Board Software for:
- Data Acquisition
- Data Management
- Computer Control
Unit: TCPGC. Film and Dropwise Condesation Unit

1.- Investigation of the saturation pressure/temperature relationship H2O for between about 20 C and 0 100 C.

2.- Visual demonstration of filmwise and dropwise condensation, and of nucleate boiling.

3.- Measurement of heat flow and surface heat transfer coefficient in both filmwise and dropwise condensation at pressures up to atmospheric.

4.- Demonstration and investigation of the effect of air in condensers.

5.- Demonstration of Dalton’s Law. Other possible practices:

6.- Sensors calibration.

7-25 .- Practices with PLC.

1. TCPGC. Unit:

The TCPGC unit has been specially designed for students use and to provide visual results and quantitative results related to heat transfer during condensation. Self-contained unit, which has its own steam generator and air extraction system, as well as condensers to provide dropwise and filmwise condensation.
Diagram in the front panel with similar distribution to the elements in the real unit.
Steam chamber: thick-walled glass cylinder with aluminium ends and P.T.F.E. seals.
2 Water cooled condensers, mounted in the upper cylinder cover:
Dropwise condenser-gold plated. Filmwise condenser-natural finish.
Each condenser is provided with three connected temperature sensors.
Electric heating element (3 KW. resistance) with thermal protection. Power of the resistance computer controlled.
Air extraction system, composed by air cooler, separator and water jet vacuum pump.
Pressure sensor, to measure the chamber pressure. 2 Water flow sensors, to measure the water flow rate through the condensers.Power measurement from the computer (PC).
Safety elements.

2. TCPGC/CIB. Control Interface Box:

With process diagram in the front panel. The unit control elements are permanently computer controlled. Simultaneous visualization in the computer of all parameters involved in the process. Calibration of all sensors involved in the process.
Real time curves representation. All the actuators’ values can be changed at any time from the keyboard. Shield and filtered signals to avoid external interferences. Real time PID control with flexibility of modifications from the computer keyboard of the PID parameters, at any moment during the process. Open control allowing modifications, at any moment and in real time, of parameters involved in the process. 3 safe levels: mechanical in the unit, electronic in the control interface, and the third one in the control software.

3. DAB. Data Acquisition Board:

PCI Data acquisition National Instruments board to be placed in a computer slot. 16 Analog inputs. Sampling rate up to:
250 KS/s. 2 Analog outputs. 24 Digital Inputs/Outputs.

4. TCPGC/CCSOF. PID Computer Control+Data Acquisition+Data Management Software:

Flexible, open and multicontrol software. Management, processing, comparison and storage of data. Sampling velocity up to 250,000 data per second. It allows the registration of the alarms state and the graphic representation in real time.

5. Cables and Accessories, for normal operation.

6. Manuals: This unit is supplied with 8 manuals.

Dimensions (approx.) = Unit: 700 x 570 x 770 mm. Weight: 60 Kg. Control Interface: 490 x 330 x 310 mm. Weight: 10 Kg.