3 Specific energy consumption (SEC)
In Video 3, Simon discusses the key parameter of specific energy consumption (SEC). Watch the video, then answer the questions that follow.
Video 3 Specific energy consumptionVideo player: Clip%202.mp4
Next we're going to calculate power and energy for different situations. For this, you may find it useful to refer to the ('Ctrl click' to open in a new window) included with this course.
Referring back to the equations you saw in Section 2, how much power in kW does it take to pump 1,000 m3/h of water at 0.5 bar pressure?
How much power is required to produce the above product flow if it represents only half of the feed flow, and the feed flow has to be pumped to 54 bar?
What is the specific energy consumption (SEC) in kWh per m3 product for the above?
You've now calculated specific energy consumption (SEC), and noted how it relates to pressure. Now it's time to learn about the parameters which are specific to membrane processes.
You can now move to Section 4 Membrane process parameters