rcuk energy programme 2012

Dr. Kang Li

Queen’s University Belfast

RCUK Energy Programme

shaping capability and strategy planning

k.li@qub.ac.uk

Melt pressure

Transducer

Slit Die

3 Melt pressure Transducers

to measure pressure drop

Melt Temperature

measured by

Infrared Sensor

Power

consumption by

HIOKI 3169-20

Energy Saving through control – polymer extrusion

Energy Saving through Optimization

Energy waste

• Unnecessary over heating

• Long machine start-up time

• Unacceptable quality

• Machine fault

• Changing material

III. Simulation and Conclusion

● Economic dispatch is the short-term

determination of the optimal output of a

number of electricity generation

facilities, to meet the system load, at

the lowest possible cost.

●Emergency reserve is required on the

purpose of maintaining the reliability in

case of the loss of a main unit or an

increase in load.

2 4 6 8 10 12 14 16

5

10

15

20

25

0

100

200

300

400

500

600

Po

we

r o

utp

ut /M

W

Generators

Fig. 1 Operating cost obtained by two different methods Fig. 2 Solution to economic loading.

Tested on a 16-unit ,24-h power system example.

Operating cost is saved by $723 daily using our method.

II. Differential evolution

I. Introduction

Fig. 3 Diagram of single screw extruder Fig. 4 Various measurements at the melt output

Fig. 5 Soft-sensor approach for measuring melt viscosity

Fig. 6 Intelligent control of melt outputs for a polymer extruder