Performance of small high pressure cryogenic pumps
Abstract
Two small cryogenic pumps have been made and tested for use in LO2/LH2 rocket-engine turbopumps. Both the pumps have a small impeller and are characterized by high speed and high delivery pressure. The main design characteristics of the pumps are as follows: rotational speeds 45,000 and 80,000 rpm, delivery pressures 24.6 and 26.0 MPa, and flow rates 0.016 and 0.0439 cu m/s, for LO2 and LH2 pumps, respectively. The efficiencies of the test pumps were compared with previously reported results, and the adiabatic efficiency (usually used for compressors or gas turbines) was investigated in more detail to demonstrate its applicability to cryogenic pumps.
- Publication:
-
14th Space Technology and Science Symposium
- Pub Date:
- 1984
- Bibcode:
- 1984spte.symp..159K
- Keywords:
-
- Cryogenic Equipment;
- Fuel Pumps;
- Liquid Rocket Propellants;
- Turbine Pumps;
- Compressible Flow;
- Fuel Combustion;
- High Pressure;
- High Speed;
- Performance Prediction;
- Performance Tests;
- Thermodynamic Efficiency;
- Engineering (General)