White Dwarf - Revision history

Dug20: /* Overview */

2022-08-14T00:28:46Z

Overview

← Older revision		Revision as of 00:28, 14 August 2022
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	\|}		\|}
	</center>		</center>
			==Resources==

			* [[:File:WHITE DWARF.pdf\|Overall Drawing]]

	[[File:WD Cross Section With Gussets.png\|thumb\|400x400px\|Cutaway of the White Dwarf CAD.]]		[[File:WD Cross Section With Gussets.png\|thumb\|400x400px\|Cutaway of the White Dwarf CAD.]]
	[[File:White Dwarf Mounting Face.png\|thumb\|400x400px\|Outside view of the White Dwarf CAD.]]		[[File:White Dwarf Mounting Face.png\|thumb\|400x400px\|Outside view of the White Dwarf CAD.]]

Dug20 at 23:51, 13 August 2022

2022-08-13T23:51:20Z

← Older revision		Revision as of 23:51, 13 August 2022
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	\|-		\|-
	\|Mass flow rate		\|Mass flow rate
	\|0.803 kg/s (0.625 N2O, 0.~~143~~ IPA, 0.~~0357~~ water)		\|0.803 kg/s (0.625 N2O, 0.134 IPA, 0.044 water)
	\|}		\|}
	</center>		</center>

Dug20 at 23:50, 13 August 2022

2022-08-13T23:50:37Z

← Older revision		Revision as of 23:50, 13 August 2022
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	\|}		\|}
	</center>		</center>
	[[File:~~White Dwarf~~ Cross Section v9.png\|thumb\|400x400px\|Cutaway of the White Dwarf CAD.]]		[[File:WD Cross Section With Gussets.png\|thumb\|400x400px\|Cutaway of the White Dwarf CAD.]]
	[[File:White Dwarf Mounting Face.png\|thumb\|400x400px\|Outside view of the White Dwarf CAD.]]		[[File:White Dwarf Mounting Face.png\|thumb\|400x400px\|Outside view of the White Dwarf CAD.]]

	==Combustion Chamber==		==Combustion Chamber==
	The [[White Dwarf Combustion Chamber\|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\|injector]] is intended to be a pintle design.		The [[White Dwarf Injector\|injector]] is intended to be a pintle design.

Dug20 at 23:48, 13 August 2022

2022-08-13T23:48:15Z

← Older revision		Revision as of 23:48, 13 August 2022
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	\|}		\|}
	</center>		</center>
	[[File:White Dwarf Cross Section v9.png\|thumb\|400x400px\|Cutaway of the White Dwarf CAD~~, with the cold-flow injector shown for scale~~.]]		[[File:White Dwarf Cross Section v9.png\|thumb\|400x400px\|Cutaway of the White Dwarf CAD.]]
	[[File:White Dwarf ~~Iso No Cut~~.png\|thumb\|~~400px~~\|~~Isometric~~ view of the White Dwarf CAD~~, without the injector~~.]]		[[File:White Dwarf Mounting Face.png\|thumb\|400x400px\|Outside view of the White Dwarf CAD.]]

	==Combustion Chamber==		==Combustion Chamber==

Dug20: /* Overview */

2022-08-13T23:47:09Z

Overview

← Older revision		Revision as of 23:47, 13 August 2022
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	[[File:White Dwarf Cross Section v9.png\|thumb\|400x400px\|Cutaway of the White Dwarf CAD, with the cold-flow injector shown for scale.]]		[[File:White Dwarf Cross Section v9.png\|thumb\|400x400px\|Cutaway of the White Dwarf CAD, with the cold-flow injector shown for scale.]]
	[[File:White Dwarf Iso No Cut.png\|thumb\|400px\|Isometric view of the White Dwarf CAD, without the injector.]]		[[File:White Dwarf Iso No Cut.png\|thumb\|400px\|Isometric view of the White Dwarf CAD, without the injector.]]
	~~[[File:White Dwarf Iso Cut.PNG\|thumb\|400px\|Isometric cut-away view of the White Dwarf CAD, without the injector.]]~~

	==Combustion Chamber==		==Combustion Chamber==

Dug20 at 23:46, 13 August 2022

2022-08-13T23:46:42Z

← Older revision		Revision as of 23:46, 13 August 2022
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	\|-		\|-
	\|Fuel		\|Fuel
	\|80% Isopropyl alcohol (IPA, C3H8O), 20% water (by mass)		\|75% Isopropyl alcohol (IPA, C3H8O), 25% water (by mass)
	\|-		\|-
	\|Thrust		\|Thrust
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	\|}		\|}
	</center>		</center>
			[[File:White Dwarf Cross Section v9.png\|thumb\|400x400px\|Cutaway of the White Dwarf CAD, with the cold-flow injector shown for scale.]]
	[[File:White Dwarf ~~Cut with Injector~~.~~PNG~~\|thumb\|~~400px~~\|Cutaway of the White Dwarf CAD, with the cold-flow injector shown for scale.]]
	[[File:White Dwarf Iso No Cut.png\|thumb\|400px\|Isometric view of the White Dwarf CAD, without the injector.]]		[[File:White Dwarf Iso No Cut.png\|thumb\|400px\|Isometric view of the White Dwarf CAD, without the injector.]]
	[[File:White Dwarf Iso Cut.PNG\|thumb\|400px\|Isometric cut-away view of the White Dwarf CAD, without the injector.]]		[[File:White Dwarf Iso Cut.PNG\|thumb\|400px\|Isometric cut-away view of the White Dwarf CAD, without the injector.]]

Dug20: Added chamber temperature

2022-05-06T15:18:09Z

Added chamber temperature

← Older revision		Revision as of 15:18, 6 May 2022
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	\|Chamber pressure		\|Chamber pressure
	\|10 bar		\|10 bar
			\|-
			\|Chamber temperature
			\|2857 K
	\|-		\|-
	\|O/F ratio		\|O/F ratio

Dug20: /* Combustion Chamber */

2022-02-08T14:21:01Z

Combustion Chamber

← Older revision		Revision as of 14:21, 8 February 2022
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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
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	\|0.803 kg/s (0.625 N2O, 0.143 IPA, 0.0357 water)		\|0.803 kg/s (0.625 N2O, 0.143 IPA, 0.0357 water)
	\|}		\|}
			</center>

	[[File:White Dwarf Cut with Injector.PNG\|thumb\|400px\|Cutaway of the White Dwarf CAD, with the cold-flow injector shown for scale.]]		[[File:White Dwarf Cut with Injector.PNG\|thumb\|400px\|Cutaway of the White Dwarf CAD, with the cold-flow injector shown for scale.]]
Line 32:		Line 34:

	==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. 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.

Dug20: /* Injector */

2022-02-08T13:15:12Z

Injector

← Older revision		Revision as of 13:15, 8 February 2022
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	==Injector==		==Injector==
	The ~~injector~~ is intended to be a pintle design.		The [[White Dwarf Injector]] is intended to be a pintle design.

Dug20: The scaled-down version of White Giant, used to gain experience with bipropellant liquid rocket engines.

2022-02-08T12:56:43Z

The scaled-down version of White Giant, used to gain experience with bipropellant liquid rocket engines.

New page

== 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:

{| class="wikitable"
|+Operating Conditions
|-
|Oxidiser
|Nitrous oxide (N2O)
|-
|Fuel
|80% Isopropyl alcohol (IPA, C3H8O), 20% water (by mass)
|-
|Thrust
|1.5 kN
|-
|Chamber pressure
|10 bar
|-
|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, 0.143 IPA, 0.0357 water)
|}

[[File:White Dwarf Cut with Injector.PNG|thumb|400px|Cutaway of the White Dwarf CAD, with the cold-flow injector shown for scale.]]
[[File:White Dwarf Iso No Cut.png|thumb|400px|Isometric view of the White Dwarf CAD, without the injector.]]
[[File:White Dwarf Iso Cut.PNG|thumb|400px|Isometric cut-away view of the White Dwarf CAD, without the injector.]]

==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.

==Injector==
The injector is intended to be a pintle design.