NH3¶
Ammonia (NH3) was used as the fuel in the XLR-99 engine that powered the X-15 manned spaceplane; used as the propellant in some electric engine designs; developed as the propellant in Russian nuclear-powered ICBM designs of the 1950’s.
Reference Points¶
NH3 == Ammonia
Hover over column headers to see definitions, values to see alternate units
| Tref | Pref | SG | Cp | dHvap | Visc | Cond | Surf | |
|---|---|---|---|---|---|---|---|---|
| Source | R | psia | g/ml | BTU/lbm-R | BTU/lbm | poise | BTU/hr-ft-R | lbf/in |
| RocketProps | 431.7 | 14.7 | 0.6820 | 1.063 | 589.2 | 2.555e-03 | 0.3849 | 2.555e-04 |
| AFRPL-TR-69-149 | 431.6 | 14.7 | 0.6819 | 1.065 | 588.2 | 2.527e-03 | 0.3278 | 1.942e-04 |
| RefProp | 431.7 | 14.7 | 0.6820 | 1.063 | 589.2 | 2.555e-03 | 0.3849 | 2.555e-04 |
| Aerojet | 431.6 | 14.7 | 0.6849 | 1.068 | 596.2 | 2.453e-03 | 0.2171 | --- |
Fluid Properties¶
NH3 == Ammonia
Hover over column headers to see definitions, values to see alternate units
| MolWt | Tc | Pc | SGc | Zc | Tnbp | Tmelt | omega | |
|---|---|---|---|---|---|---|---|---|
| Source | g/gmole | R | psia | g/ml | (-) | R | R | (-) |
| RocketProps | 17.030 | 729.7 | 1643.7 | 0.2250 | 0.2545 | 431.7 | 351.9 | 0.25601 |
| AFRPL-TR-69-149 | 17.032 | 730.1 | 1647.5 | 0.2350 | 0.2442 | 431.6 | 351.7 | --- |
| Gas&Liq 5th Ed | 17.031 | 729.7 | 1646.6 | 0.2350 | 0.2441 | 431.7 | 351.7 | 0.25700 |
| RefProp | 17.030 | 729.7 | 1643.7 | 0.2250 | 0.2545 | 431.7 | 351.9 | 0.25601 |
| Aerojet | 17.032 | 729.8 | 1636.0 | 0.2481 | 0.2298 | 431.6 | 351.8 | 0.23259 |
Vapor Pressure¶
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Density¶
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Heat Capacity¶
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Viscosity¶
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Heat of Vaporization¶
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Thermal Conductivity¶
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Surface Tension¶
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