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WebATOTW 220 – Intra-Aortic Balloon Pump Counterpulsation 25/04/2011 Page 1 of 8 INTRA-AORTIC BALLOON PUMP COUNTERPULSATION ANAESTHESIA TUTORIAL OF THE WEEK 220 25TH APRIL 2011 Dr Bashir Alaour, Dr William English, Royal Cornwall Hospitals NHS Trust, UK Correspondence: [email protected] INTRODUCTION WebPump - Temperature Rise Calculator. P s - brake power (kW) μ - pump efficiency. c p-specific heat (kJ/kg o C) q - volume flow (m 3 /s) ρ - density (kg/m 3) Example - Temperature rise in water pump. Temperature rise in a water pump working at normal conditions with flow 6 m 3 /h (0.0017 m 3 /s), brake power 0.11 kW and pump efficiency of 28% ... WebThe main components of a helium liquefier are: oil-injection screw compressors vacuum-insulated cold box aluminum-plate heat exchanger TED expansion turbines with dynamic gas bearing liquid helium storage tank control system Further system components such as: raw gas compressors purification systems gas storage tanks helium recovery scarlets country dance club