Nord Stream is 1200 km long, 1200 mm wide and transfers 55 billion m^3 of gas per year. At 150 bar that's 10 m/s. And pumping that amount consumes the power 170 MW. The power content of the gas flow compares to 70 GW.
Where is all heat going in the compression stage of the gas? The gas (with Cp/Cv=1.3) becomes 660 C hot. How big is the drag in a pipe like that? Here it says 366 MW pumping power and 220 bar. http://urresult.ru/?cat=123 Even worse, but I didn't take the warming of the gas in the pumps into consideration. David David Jonsson, Sweden, phone callto:+46703000370
