Difference between revisions of "White Dwarf"
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White Dwarf is a scaled down test version of the [[White Giant]] engine that is intended to launch [[Panthera]]. The operating parameters are shown in the table below: | White Dwarf is a scaled down test version of the [[White Giant]] engine that is intended to launch [[Panthera]]. The operating parameters are shown in the table below: | ||
<center> | |||
{| class="wikitable" | {| class="wikitable" | ||
|+Operating Conditions | |+Operating Conditions | ||
| Line 9: | Line 10: | ||
|- | |- | ||
|Fuel | |Fuel | ||
| | |75% Isopropyl alcohol (IPA, C3H8O), 25% water (by mass) | ||
|- | |- | ||
|Thrust | |Thrust | ||
| Line 16: | Line 17: | ||
|Chamber pressure | |Chamber pressure | ||
|10 bar | |10 bar | ||
|- | |||
|Chamber temperature | |||
|2857 K | |||
|- | |- | ||
|O/F ratio | |O/F ratio | ||
| Line 24: | Line 28: | ||
|- | |- | ||
|Mass flow rate | |Mass flow rate | ||
|0.803 kg/s (0.625 N2O, 0. | |0.803 kg/s (0.625 N2O, 0.134 IPA, 0.044 water) | ||
|} | |} | ||
</center> | |||
==Resources== | |||
* [[:File:WHITE DWARF.pdf|Overall Drawing]] | |||
[[File: | [[File:WD Cross Section With Gussets.png|thumb|400x400px|Cutaway of the White Dwarf CAD.]] | ||
[[File:White Dwarf | [[File:White Dwarf Mounting Face.png|thumb|400x400px|Outside view of the White Dwarf CAD.]] | ||
==Combustion Chamber== | ==Combustion Chamber== | ||
The [[White Dwarf Combustion Chamber]] uses a water-cooled jacket, with a graphite nozzle. The cooling channels are cut into an off-the-shelf copper tube using a CNC machine. | The [[White Dwarf Combustion Chamber|combustion chamber]] uses a water-cooled jacket, with a graphite nozzle that is bolted into a retainer ring. The cooling channels are cut into an off-the-shelf copper tube using a CNC machine. | ||
==Injector== | ==Injector== | ||
The [[White Dwarf Injector]] is intended to be a pintle design. | The [[White Dwarf Injector|injector]] is intended to be a pintle design. | ||
Latest revision as of 00:28, 14 August 2022
Overview
White Dwarf is a scaled down test version of the White Giant engine that is intended to launch Panthera. The operating parameters are shown in the table below:
| Oxidiser | Nitrous oxide (N2O) |
| Fuel | 75% Isopropyl alcohol (IPA, C3H8O), 25% water (by mass) |
| Thrust | 1.5 kN |
| Chamber pressure | 10 bar |
| Chamber temperature | 2857 K |
| O/F ratio | 3.5 (by mass - where the water is included in the 'fuel' mass) |
| Specific impulse | 190 s (theoretical) |
| Mass flow rate | 0.803 kg/s (0.625 N2O, 0.134 IPA, 0.044 water) |
Resources
Combustion Chamber
The combustion chamber uses a water-cooled jacket, with a graphite nozzle that is bolted into a retainer ring. The cooling channels are cut into an off-the-shelf copper tube using a CNC machine.
Injector
The injector is intended to be a pintle design.