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Post by Pttg on Nov 19, 2016 21:32:50 GMT
The current limit of NTR is more on the melting point of the nuclear fuel, so a nuclear fuel with higher melting point would probably work just plain better. Gee, if only we had a materials scientist with a speciality in metals and ceramics used in nuclear applications. I'll just leave this here: Material UTaC Cermet Elements U-235 Ta C ElementCount 1 2 3 EnthalpyOfFormation_kJ__mol -96.1 Density_kg__m3 14076 YieldStrength_MPa 237.0 UltimateTensileStrength_MPa 248.0 YoungsModulus_GPa 448.0 ShearModulus_GPa 179.8 MeltingPoint_K 3641 SpecificHeat_J__kg_K 126.83 ThermalConductivity_W__m_K 20.0 ThermalExpansion__K 8.53e-6 Resistivity_Ohm_m 2.5e-8 RefractiveIndex Tantalum RoughnessCoefficient 0.3
A uranium tantalum carbide cermet, in a sintered tungsten cladding (not shown as we don't have to worry about cladding) is a proposed material for NTRs. The material properties haven't been published so there's a lot of guesswork and interpolation here. I had this working in version 1.04 of CoDE, but it broke on a recent update, and now it just crashes my game. If someone gets it in, let me know. As far as I can tell, adding anything other than oxygen to the elements entry of a reactor core causes a crash. I'm not sure why. Here's my working "Cermet": Material UTaC Cermet Elements U-235 ElementCount 1 Density_kg__m3 14076 YieldStrength_MPa 237.0 UltimateTensileStrength_MPa 248.0 YoungsModulus_GPa 448.0 ShearModulus_GPa 179.8 MeltingPoint_K 3641 SpecificHeat_J__kg_K 126.83 ThermalConductivity_W__m_K 20.0 ThermalExpansion__K 8.53e-6 EnthalpyOfFormation_kJ__mol -96.1 BandGap_eV 1.4 RelativePermittivity 1.00040 ThermoelectricSensitivity_V__K 750e-6 RefractiveIndex Uranium Oxide RoughnessCoefficient .3
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Post by Pttg on Nov 19, 2016 21:29:58 GMT
I'm not rightly sure how I did this, but it's the highest exhaust velocity rocket in my catalog and it's powered by a fairly small amount of depleted Uranium. I guess it's for civilian ships that can't get clearance for highly enriched plutonium?
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Post by Pttg on Nov 17, 2016 23:44:37 GMT
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Post by Pttg on Nov 17, 2016 21:17:15 GMT
Organic Materials.txt
Material Chocolate Elements C H N O ElementCount 7 8 4 2 IsABiomaterial true IsNanostructured true Density_kg__m3 1325 EnthalpyOfFormation_kJ__mol 1278.8 BondDissociationEnergy_kJ__mol 2854.63 GibbsFreeEnergyOfFormation_kJ__mol -14.4 BulkModulus_GPa .087 MeltingPoint_K 244.15 BoilingPoint_K 376 ThermalConductivity_W__m_K .609 SpecificHeat_J__kg_K 4183.95 Viscosity_Pa_s .000260 Dissociation Products Monatomic Carbon Monatomic Hydrogen Monatomic Oxygen Monatomic Nitrogen ProductCounts 1 3 2 1
Material Blood Elements H O C N Ca P ElementCount 62 24 12 1.1 .2 .2 IsABiomaterial true IsNanostructured true Density_kg__m3 1060 MeltingPoint_K 270 BoilingPoint_K 373 ThermalConductivity_W__m_K .7351 SpecificHeat_J__kg_K 4938 Resistivity_Ohm_m 10000 Viscosity_Pa_s .000260 RefractiveIndex Water Dissociation Products Monatomic Carbon Monatomic Hydrogen Monatomic Oxygen Monatomic Nitrogen ProductCounts 12 62 24 1 It's liquid chocolate. Needs more information before you can make, for instance, a solid chocolate blood tank. So you psychopaths will have to wait a bit for me to figure out which chocolate is the most structurally sound for spaceships.
UPDATE on the liquid metals: They seem to make the game thing those metals are always molten.... I need to make a separate entry for liquid metals so the game won't freak out.
I suppose that I could also use that to allow you to have frozen mercury armor for some reason.
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Post by Pttg on Nov 17, 2016 21:08:38 GMT
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Post by Pttg on Nov 17, 2016 20:16:05 GMT
Prototype liquid metal stuff:
This will allow you to use metals as coolant if your reactors are hot enough.
C:\Users\[YOUR NAME HERE]\AppData\Roaming\CDE\Mods\Data
metals.txt
Material Aluminum Elements Al ElementCount 1 Density_kg__m3 2700 YieldStrength_MPa 20 UltimateTensileStrength_MPa 300 YoungsModulus_GPa 69 ShearModulus_GPa 25.5 SpecificHeat_J__kg_K 900 MeltingPoint_K 933.47 BoilingPoint_K 2743 ThermalConductivity_W__m_K 237 ThermalExpansion__K 23.1e-6 Resistivity_Ohm_m 2.81e-8 RelativePermeability 1.000022 ThermoelectricSensitivity_V__K -1.5e-6 LasingDamageThreshold_TW__m2 .00127 RefractiveIndex Aluminum RoughnessCoefficient 0.3 Viscosity_Pa_s 0.0000029
Material Gold Elements Au ElementCount 1 Density_kg__m3 19300 YieldStrength_MPa 209 UltimateTensileStrength_MPa 120 YoungsModulus_GPa 79 ShearModulus_GPa 27 SpecificHeat_J__kg_K 128 MeltingPoint_K 1337.33 BoilingPoint_K 3243 ThermalConductivity_W__m_K 320 ThermalExpansion__K 14.2e-6 Resistivity_Ohm_m 22.41e-9 RelativePermeability .99999981 ThermoelectricSensitivity_V__K 1.5e-6 LasingDamageThreshold_TW__m2 .00204 RefractiveIndex Gold RoughnessCoefficient .3 Viscosity_Pa_s 0.00000513
Material Lead Elements Pb ElementCount 1 Density_kg__m3 11340 YieldStrength_MPa 5.52 UltimateTensileStrength_MPa 14 YoungsModulus_GPa 14.7 ShearModulus_GPa 13.1 SpecificHeat_J__kg_K 128.7 MeltingPoint_K 600.5 BoilingPoint_K 2042 ThermalConductivity_W__m_K 35 ThermalExpansion__K 28.9e-6 Resistivity_Ohm_m 2.2e-7 RelativePermeability .999982 ThermoelectricSensitivity_V__K -1.0e-6 RefractiveIndex Lead RoughnessCoefficient 0.4 Viscosity_Pa_s 0.0000015
Material Tin Elements Sn ElementCount 1 Density_kg__m3 7365 YieldStrength_MPa 90.3 UltimateTensileStrength_MPa 220 YoungsModulus_GPa 44.3 ShearModulus_GPa 18 SpecificHeat_J__kg_K 228.39 MeltingPoint_K 505.08 BoilingPoint_K 2875 ThermalConductivity_W__m_K 66.8 ThermalExpansion__K 22.0e-6 Resistivity_Ohm_m 115e-9 RelativePermittivity 24 RefractiveIndex Tin RoughnessCoefficient 0.2 Viscosity_Pa_s 0.000001 To uninstall, simply delete the file.
Oh, anyone have a good source for data?
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Post by Pttg on Nov 17, 2016 7:35:16 GMT
If they can throw millions of people into the space, I fairly sure they can throw a bunch of cocoa tree into the atmosphere too. Are you kidding? They started with the cocoa trees.
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Post by Pttg on Nov 17, 2016 4:23:28 GMT
I'd say a quick and easy mod (I guess?) would be to make an Em drive. Having free really low thrust would make for some interesting design changes. Plausibility of the drive aside, would be neat to see how spacecraft design would change to take advantage of propulsion that doesn't require propellant. You can build one currently with a black box engine module.
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Post by Pttg on Nov 17, 2016 3:54:35 GMT
Yeah, check out C:\Users\[Your username]\AppData\Roaming\CDE\Mods and C:\Program Files (x86)\Steam\SteamApps\common\Children of a Dead Earth
The game will parse text files from both folders, but it's best practices to use the AppData file so updates won't eat your custom mods. Note that the game can parse things that will cause errors and weird behavior and crashes, and you can permanently mess up your saved items if you change a standard material.
Oooh! I should add chocolate!
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Post by Pttg on Nov 17, 2016 3:23:30 GMT
Unfortunately that's 4766°F, not Kelvin. But it's still 2903 K, higher than uranium dioxide. Oooh, and it has very high thermal conductivity, too! Well, I tried it out very quickly: Material U-233 Mononitride Elements U-233 N ElementCount 1 1 Density_kg__m3 11300 YieldStrength_MPa 147.1 UltimateTensileStrength_MPa 176.5 YoungsModulus_GPa 192.9 ShearModulus_GPa 74.1 MeltingPoint_K 2903 SpecificHeat_J__kg_K 236.58 ThermalConductivity_W__m_K 16.0 ThermalExpansion__K 10.2e-6 EnthalpyOfFormation_kJ__mol -1084 BandGap_eV 1.4 RelativePermittivity 22 ThermoelectricSensitivity_V__K 750e-6 RefractiveIndex Uranium Oxide RoughnessCoefficient .8 I only changed the density, melting point, and thermal conductivity. I got an instant CTD when I tried switching the fuel from one of my existing reactors to this version of uranium mononitride.
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Post by Pttg on Nov 17, 2016 1:57:03 GMT
Su-weeet biscuts that's a high temperature fuel material. 4766 K would be delightful, I'll give it a shot.
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Post by Pttg on Nov 16, 2016 21:09:18 GMT
This is really impressive. How goes progress? Is it available for download somewhere?
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Post by Pttg on Nov 16, 2016 19:49:09 GMT
Can anyone point me to an existing modding guide (google search was unhelpful...), or perhaps let me know some basic information such as how the game parses files? What determines if a material is available as, for instance, a coolant, or a reactor fuel? EDIT: Is there an error log somewhere? Further Updates: So far, I've determined that it's material qualities that determine if a material appears in a given list. For instance, only materials with a non-zero resistance value appear as a potential coil material. (Must be a divide by zero when using superconducting solenoids...) Not sure what's needed for coolants. I tried adding viscosity to aluminum but that doesn't seem to be sufficient to add it to the coolant list. As a side-note, making a vaporized-gold NTR would be interesting. I'll be sure to add gold as a coolant. Ooooh! Maybe blood! That's both nanostructured and organic in origin! I think it may be easier to outright add materials than it is to add qualities to existing materials. hmmm. Ok, I can definitely make a set of new materials. Not sure I can do so elegantly; that is to say, I might need to make Molten Aluminum a separate material from Aluminum. For my notes, I intend to add: Polystyrene, ice, silicate rock, wood, long woven carbon nanotube material, a recently-developed new thermocouple material (need to find the article on that again), bone, and concrete. I will also add as coolants: alchohol, liquid metals, coffee, blood, metastable metallic hydrogen in suspension. I'm also looking into extremely high-temperature nuclear fuels, but I'm not seeing anything better than what we already have. Uranium carbide only goes up to ~2,600K... Most recent alpha releases: Metals.txt Material Molten Aluminum Elements Al ElementCount 1 Density_kg__m3 2700 YieldStrength_MPa 20 UltimateTensileStrength_MPa 300 YoungsModulus_GPa 69 ShearModulus_GPa 25.5 SpecificHeat_J__kg_K 900 MeltingPoint_K 933.47 BoilingPoint_K 2743 ThermalConductivity_W__m_K 237 ThermalExpansion__K 23.1e-6 Resistivity_Ohm_m 2.81e-8 RelativePermeability 1.000022 ThermoelectricSensitivity_V__K -1.5e-6 LasingDamageThreshold_TW__m2 .00127 RefractiveIndex Aluminum RoughnessCoefficient 0.3 Viscosity_Pa_s 0.0000029
Material Molten Gold Elements Au ElementCount 1 Density_kg__m3 19300 YieldStrength_MPa 209 UltimateTensileStrength_MPa 120 YoungsModulus_GPa 79 ShearModulus_GPa 27 SpecificHeat_J__kg_K 128 MeltingPoint_K 1337.33 BoilingPoint_K 3243 ThermalConductivity_W__m_K 320 ThermalExpansion__K 14.2e-6 Resistivity_Ohm_m 22.41e-9 RelativePermeability .99999981 ThermoelectricSensitivity_V__K 1.5e-6 LasingDamageThreshold_TW__m2 .00204 RefractiveIndex Gold RoughnessCoefficient .3 Viscosity_Pa_s 0.00000513
Material Molten Lead Elements Pb ElementCount 1 Density_kg__m3 11340 YieldStrength_MPa 5.52 UltimateTensileStrength_MPa 14 YoungsModulus_GPa 14.7 ShearModulus_GPa 13.1 SpecificHeat_J__kg_K 128.7 MeltingPoint_K 600.5 BoilingPoint_K 2042 ThermalConductivity_W__m_K 35 ThermalExpansion__K 28.9e-6 Resistivity_Ohm_m 2.2e-7 RelativePermeability .999982 ThermoelectricSensitivity_V__K -1.0e-6 RefractiveIndex Lead RoughnessCoefficient 0.4 Viscosity_Pa_s 0.0000015
Material Molten Tin Elements Sn ElementCount 1 Density_kg__m3 7365 YieldStrength_MPa 90.3 UltimateTensileStrength_MPa 220 YoungsModulus_GPa 44.3 ShearModulus_GPa 18 SpecificHeat_J__kg_K 228.39 MeltingPoint_K 505.08 BoilingPoint_K 2875 ThermalConductivity_W__m_K 66.8 ThermalExpansion__K 22.0e-6 Resistivity_Ohm_m 115e-9 RelativePermittivity 24 RefractiveIndex Tin RoughnessCoefficient 0.2 Viscosity_Pa_s 0.000001 Organic Compounds.txt Material Chocolate Elements C H N O ElementCount 7 8 4 2 IsABiomaterial true IsNanostructured true Density_kg__m3 1325 EnthalpyOfFormation_kJ__mol 1278.8 BondDissociationEnergy_kJ__mol 2854.63 GibbsFreeEnergyOfFormation_kJ__mol -14.4 BulkModulus_GPa .087 MeltingPoint_K 244.15 BoilingPoint_K 376 ThermalConductivity_W__m_K .609 SpecificHeat_J__kg_K 4183.95 Viscosity_Pa_s .000260 Dissociation Products Monatomic Carbon Monatomic Hydrogen Monatomic Oxygen Monatomic Nitrogen ProductCounts 1 3 2 1
Material Blood Elements H O C N Ca P ElementCount 62 24 12 1.1 .2 .2 IsABiomaterial true IsNanostructured true Density_kg__m3 1060 MeltingPoint_K 270 BoilingPoint_K 373 ThermalConductivity_W__m_K .7351 SpecificHeat_J__kg_K 4938 Resistivity_Ohm_m 10000 Viscosity_Pa_s .000260 RefractiveIndex Water Dissociation Products Monatomic Carbon Monatomic Hydrogen Monatomic Oxygen Monatomic Nitrogen ProductCounts 12 62 24 1 Attachment DeletedAttachment Deleted
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Post by Pttg on Nov 16, 2016 7:39:34 GMT
I thought that drones use a combination of local computer control (those giant Remote Control modules have to do something, don't they?) and remote control on nearby bodies. After all, if only drones remain of your attacking force, you still get to control them.
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Post by Pttg on Nov 15, 2016 22:04:58 GMT
Doesn't Ganymede get completely nuked at the end of the campaign? If so, that's 7% of the human population, which might be the worst genocide in human history. That still pales in front of the Great Mistake.
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