 |
Solar & Thermal Systems, Inc. |
 |
    |
|
|
The Light is Green |
||||
| |||||||||||||||
|
Pump |
The liquid pump closes the loop for the system. The liquid that emerges from the condenser is now at a lower pressure that corresponds to the saturation pressure at the temperature of the condenser/heat-sink. The pump requires work to effect the change in pressure. This can come directly from the expander, or an external source. Notice it is important to know that the work required to pump a certain mass of liquid from low pressure to high pressure is only a tiny fraction of the work that would be required to compress the same mass of gas thru the same pressure rise; it is also much less than the work that was obtained in the expander. This is the essential feature of the Rankine Cycle. |
...............
............... |
Copyright 2001, 2009 Solar & Thermal Systems, Inc. All Rights Reserved.
|
