Geneq > Teaching Equipment > Measure & Regulation

Regulation of a Heat Exchanger

Model RCT 101

The unit is delivered complete with instrumentation, technical documentation, and instructions. Designed and manufactured to industrial standards. This unit is designed for various levels and fields of study Inlets and outlets are connected using Ø 4 mm female safety sockets - Options: – Interface and software for PC – Utilities module It is possible to connect this unit in series with another regulation unit and to use the valve as a main control. UTILITIES Electricity : 230 Vac – single-phase Water : 10 L/min – 3 bar (44 psi) Compressed air : 6 bar (90 psi) maximum DIMENSIONS Length : 780 mm Width : 570 mm Height : 590 mm Weight : 50 kg

Applications

Technical data for the elements of a regulation loop Sensor – regulator – actuator – perturbing element PID or self-adaptive Configuration of the regulator Characteristic curves (temperature, valve opening, time of response, etc…) Study including advantages of regulation in cascade – Co-run – Back-run – Laminary/turbulent flows

Specifications

Temperature probes Pt 100 Ω – class A Stainless steel 304 L Temperature indicator Display 0.1°C Recopy of the measure (4-20 mA) on jack - Ø 4 mm Thermoregulator group Capacity : 5 litres Adjustment from +20°C to +100°C Power 1600 W Incorporated regulation at ±0.5°C Circulation pump Exchanger Monotubular – stainless steel External tube covered by a thermal insulator Hot water into the internal tube Cold water into the external tube Quick and interchangeable connections on the cold-water network for the lead through in co or back-run Electromagnetic flow meter PFA covering, stainless steel electrodes Local display, outlet 4-20 mA Regulation valve Stainless steel body Variable Cv Pneumatic positioner and actuator PID type regulator with microprocessor Accuracy class 0.2 Configurable scale range Continue, logical, relay outlet – Proportional band from 0.5 to 1000% – Integral action time from 0.1 to 100 min – Derived action time from 0.01 to 10 min Self-adaptive: the PID parameters are calculated by the regulator for an optimized regulation Numerical outlet : MODBUS RS 232 One of the regulators has an external control inlet for regulation in cascade Variable section flow meter Rotameter : accuracy ±3% of the full scale Perturbation valves - 1/4 turn On hot and cold circuit 1/4-turn valves for connection in series