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KELDYSH RESEARCH CENTER


Developments

SOLAR THERMAL ROCKET ENGINE (STRE)

STRE provides the spacecraft delivery from low Earth orbit to high-altitude elliptic and circular orbits including the geostationary one, as well as to interplanetary trajectories within 10 to 60 days.


STRE is energized by a conventional power plant with solar arrays. STRE is covered by RF patents # 2126493. # 2145039. # 2150054. # 2176767. # 2197630.

The STRE is an environmentally-friendly dual-mode engine with electrically-heated heat accumulator, operating both on hot hydrogen and by afterburning of hot hydrogen with oxygen. The heating of the accumulator is powered by spacecraft solar arrays.


Main advantages of SPPS

- as compared to the conventional LRE's and solid rocket motors it has the considerably higher efficiency as to the fuel consumption.
- as compared to the electric rocket propulsion systems it provides sharp decreasing (by a factor of 5 to 10) the time of spacecraft delivery into GEO at using more beneficial flight trajectories .

SC and SPPS with fuel tanks under booster nose fairing

The high efficiency of SPPS allows the use of boosters of lesser dimensions and halves of a specific cost of the spacecraft delivery into GEO as compared to conventional LRE.

Main characteristics of SPPS

Characteristics

In pulse-periodic thrusting mode

In stedy-state mode

Fuel

H2 + O2 or H2

H2

Electric power input

5...15 kW

Thrust

200...700 N

1...3 N

Specific thrust impulse

up to 750 s

810 s



The shortened name (of the enterprise) -
SSC Keldysh Research Centre
Tel: 7-495-456-4608
Fax: 7-495-456-8228
E-mail: kerc@elnet.msk.ru

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