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ET 830

FEATURES:
- Complete laboratory-sized steam power plant
- Closed steam-water circuit
- GUNT software for data acquisition
- Plant monitored and controlled with PLC

DESCRIPTION

Technical Description

In steam power plants, thermal energy is first converted into mechanical energy and then into electrical energy. A steam power plant essentially consists of a heat source for generating steam, a turbine with load, and a cooling mechanism for condensing the steam. 

ET 830 has been designed specifically for engineering education in the field of power plant technology, and driving and driven machines. It offers a wide range of experiments to learn about the operational processes in a steam power plant.

An oil-fired once-through steam boiler produces wet steam that is turned into superheated steam by means of a superheater. The boiler's short heat-up time means rapid steam generation is possible. Load is applied to the turbine with a generator. The turbine output is determined by speed and torque. Downstream of the turbine, the steam is condensed and returned to the boiler. The feedwater circuit is fitted with a complete water treatment system, which consists of a regenerable ion exchanger and chemical dosing. Sensors record the temperature, pressure, speed, and flow rate at all relevant points. The measured values can be read on digital displays. At the same time, the measured values can also be transmitted directly to a PC via USB. The data acquisition software is included. The control panel includes a clear process schematic of the plant. The system is monitored and controlled by a programmable logic controller (PLC).  

The experimental plant is built in accordance with statutory safety regulations and includes the mandatory safety facilities. The steam generator is type tested and does not require specific permissions.

The plant can optionally be operated with the cooling tower ET 830.01 or ET 830.02 to supply cooling water.

The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.


Learning Objectives / Experiments

- steam power plant and its components
- start-up, operation and shut down of a steam powerplant
- closed steam-water circuit with feedwater treatment
- among others, determining:
  * boiler efficiency
  * mechanical/thermal efficiency of the turbine
  * condenser efficiency
  * specific fuel consumption of the plant

FEATURES

Specification
[1] laboratory-sized steam power plant
[2] oil-fired steam generator with electric superheater
[3] single-stage axial turbine with Curtis wheel, vacuum or exhaust operation
[4] DC generator as turbine load
[5] water-cooled condenser 
[6] feedwater treatment
[7] GUNT software for data acquisition via USB under Windows Vista or Windows 7
[8] plant monitored and controlled with integrated PLC
[9] cooling water connection 10m³/h or cooling tower ET 830.01/ET 830.02 required


Technical Data

Steam generator
- steam output: 200kg/h at 11bar 
- max. fuel consumption: 12L/h
- heat-up time: 8min
- max. pressure: 13bar
Superheater
- power: 7kW
Single-stage axial turbine with Curtis wheel and hydraulic speed regulator
- power: max. 1,5kW at 3000min-1
Water-cooled condenser 
- cooling capacity: 98kW
- transfer surface: 2,5m²

Measuring ranges
- temperature: 9x 0...400°C, 2x 0...100°C
- cooling water flow rate: 0...167L/min
-  pressure: 3x 0...16bar, 1x -1...1bar
- torque: 0...20Nm
- speed: 0...4000min-1


Dimensions and Weight
LxWxH: 3500x2000x2450mm
Weight: approx. 1950kg Required for Operation
400V, 50/60Hz, 3 phases or 230V, 60Hz, 3 phases
Water connection 10m³/h or ET 830.01/ET 830.02
Compressed air 4,5bar, 150L/h


Scope of Delivery
1 experimental plant
1 CD with GUNT software + USB cable
1 set of instructional material including detailed operating manual 

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