ghgh
Full Member
Still trying to make kinetics work.
Posts: 136
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Post by ghgh on Aug 22, 2018 12:36:37 GMT
My definition of practical involves not sterilizing my reactor technicians and spending 20 MC per reactor.
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Post by The Astronomer on Aug 22, 2018 14:54:30 GMT
apophys TL;DR: I made shielded versions of some of your reactors.
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Post by apophys on Aug 22, 2018 16:53:52 GMT
apophys We decided to introduce our own shielding material, made out of titanium diboride The appropriate shielding material for each reactor is already picked for you; HfC-encapsulated B 4C for the high power ones, and either that or pyrolytic carbon for the lower power ones. I'm guessing there's no possible way to make a (practical) 100MW reactor with anything less than 97% enrichment? : ( It is possible. But why? There's nothing technically wrong with 97% enrichment. Note that all the modded reactors here will maintain criticality and be capable of functioning down to 5% enrichment or below, with of course a shorter run time by using higher neutron flux. (If you go this route, you will want spare fuel rods, as cargo containers).
The high cost of the modded reactors here, compared to vanilla, is due to the bug in the game that allows fuel to last much longer than physically possible. With manual calculation and ingame fiddling, 6 months of fuel corresponds to a maximum neutron flux of 1.37e+18 , assuming 95% burnup. This means there is a lot of fuel in the reactor, necessitating a lot of control rod, both of which are expensive.
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Post by The Astronomer on Aug 22, 2018 17:06:21 GMT
apophys We decided to introduce our own shielding material, made out of titanium diboride The appropriate shielding material for each reactor is already picked for you; HfC-encapsulated B 4C for the high power ones, and pyrolytic carbon for the lower power ones. I'm guessing there's no possible way to make a (practical) 100MW reactor with anything less than 97% enrichment? : ( It is possible. But why? There's nothing technically wrong with 97% enrichment. Note that all the modded reactors here will maintain criticality and be capable of functioning down to 5% enrichment or below, with of course a shorter run time by using higher neutron flux. I’ll look into it later. What is pyrolytic carbon’s melting point, again? |
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Post by apophys on Aug 22, 2018 17:12:11 GMT
I’ll look into it later. What is pyrolytic carbon’s melting point, again? 3923 K. Its safe use temperature is 3727 K. It is literally heated graphite. |
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Post by The Astronomer on Aug 23, 2018 12:30:53 GMT
I’ll look into it later. What is pyrolytic carbon’s melting point, again? 3923 K. Its safe use temperature is 3727 K. It is literally heated graphite. Pyrolytic Carbon is great! However, when it comes to bigger reactors, Titanium Diboride is a way better option than Hafnium Carbide, requiring you to sacrifice a few percent of efficiency for significantly lower mass and much lower cost. Tested it on 100 MW and 1 GW reactors. |
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Post by apophys on Aug 23, 2018 12:56:41 GMT
Pyrolytic Carbon is great! However, when it comes to bigger reactors, Titanium Diboride is a way better option than Hafnium Carbide, requiring you to sacrifice a few percent of efficiency for significantly lower mass and much lower cost. Tested it on 100 MW and 1 GW reactors. Oh, oops, it seems I set the stock HfC there (I didn't notice, because I use none anyway). The choice was intended to be HfC-encased boron carbide, the modded material that is used for control rods. Its simulating a shell of hafnium carbide holding molten boron carbide.
Depending on the amount of shielding you go for, pyrolytic carbon may be better. I didn't expect people would want to actually shield their cores, so didn't test.
Titanium diboride has a much, much lower melting and safe use point. Lower than pyrolytic carbon, even.
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Post by The Astronomer on Aug 23, 2018 14:33:56 GMT
Pyrolytic Carbon is great! However, when it comes to bigger reactors, Titanium Diboride is a way better option than Hafnium Carbide, requiring you to sacrifice a few percent of efficiency for significantly lower mass and much lower cost. Tested it on 100 MW and 1 GW reactors. Oh, oops, it seems I set the stock HfC there (I didn't notice, because I use none anyway). The choice was intended to be HfC-encased boron carbide, the modded material that is used for control rods. Its simulating a shell of hafnium carbide holding molten boron carbide.
Depending on the amount of shielding you go for, pyrolytic carbon may be better. I didn't expect people would want to actually shield their cores, so didn't test.
Titanium diboride has a much, much lower melting and safe use point. Lower than pyrolytic carbon, even.
At least it's lighter. Much, much lighter. |
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Post by The Astronomer on Aug 25, 2018 6:03:33 GMT
That said, what are the 'no expansion' materials, and why? Have all the material expansion problems been completely solved in real life thermoelectric fission reactors?
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Post by apophys on Aug 25, 2018 14:24:30 GMT
That said, what are the 'no expansion' materials, and why? Have all the material expansion problems been completely solved in real life thermoelectric fission reactors? You can build the thermocouples in a heat gradient to begin with, or failing that, you can use multiple stages of thermocouple to lower the gradient an individual stage experiences while still retaining the large overall gradient. Either way, ingame thermal expansion limits can be engineered around (qswitched must have not expected us to hit those limits quite as hard as we do). |
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ghgh
Full Member
Still trying to make kinetics work.
Posts: 136
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Post by ghgh on Aug 25, 2018 14:59:23 GMT
Out of curiosity, why isn't the 100MW laser extruded? Is it to lower the targetable area?
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Post by apophys on Aug 25, 2018 15:05:02 GMT
Out of curiosity, why isn't the 100MW laser extruded? Is it to lower the targetable area? It's to lower cost, since the turret armor is the majority of the cost. If you put all lasers in the front, facing forward (as I like to do), the increased angle of movement from extrusion isn't relevant, while the cost reduction is. You can easily make a duplicate with extrusion if you need one. |
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ghgh
Full Member
Still trying to make kinetics work.
Posts: 136
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Post by ghgh on Aug 25, 2018 16:14:50 GMT
How do you fit all the lasers at the front without increasing the armor cost? Do you put partial armor on your ships with an unarmored laser array at the nose? If the ship is armored all the way up to the nose I'd think the added cost of armor would make the extruded turrets on the sides more economical. At least as far as setting up an array larger than 5.
(not trying to get you to change anything, I have every one of your modules stuffed into my ship atm, just curious as to how that would work.)
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Post by apophys on Aug 25, 2018 20:31:45 GMT
How do you fit all the lasers at the front without increasing the armor cost? I tend not to use armor.
This has been used as a standard testing laserstar ever since it won last year's forum tournament. In this case, the only armor not on the laser turrets themselves is a wide PTFE rad shield right behind the lasers. Code: (some modules are duplicated with my standard modules, so everything was renamed with a 2 just in case) ExplosiveModule [AE] 150 mg 1 cm Flak 2
Description Version 2. By Apophys.
UsesCustomName true
Length_m 0.01
ExplosiveMass_kg 0.0001
ExplosiveComposition Nitrocellulose
ShrapnelMass_kg 5e-005
ShrapnelComposition Osmium
Detonator
HardRange_km 0.005
ActivationRange_km 0.175
MinimumRange_km 0
OverrideTimer_s 0
TargetsShips true
TargetsShots true
RadiationShieldModule [AE] 3 mm 2 mg AC Shell Cap 2
Description Version 2. By Apophys.
UsesCustomName true
Composition Amorphous Carbon
Dimensions_m 0.0015 0.000135
MagnetoplasmadynamicThrusterModule [AE] 1 GW Neon MPD 2
Description Version 2. By Apophys.
UsesCustomName true
CathodeRadius_m 0.0252
ChamberThickness_m 0.01
AnodeThickness_m 0.001
ThrusterLength_m 0.0156
CathodeComposition Potassium
AnodeComposition Depleted Uranium
InsulatorComposition Polyethylene
Propellant Neon
Current_A 1.43e+005
Injector
Composition Lithium
PumpRadius_m 0.07
RotationalSpeed_RPM 8.23
Gimbal
InnerRadius_m 0.1
ArmorComposition Polytetrafluoroethylene
ArmorThickness_m 0.005
MomentumWheels
Composition Amorphous Zirconium Steel
RotationalSpeed_RPM 94000
GimbalAngle_degrees 90
ThermoelectricFissionReactorModule [AE] 1.01 GW Reactor 2
Description Version 6. By Apophys.
UsesCustomName true
ReactorCoreDimensions_m 0.14 0.276
NuclearReactor
Coolant Sodium
Moderator Diamond
ModeratorMass_kg 20
Fuel U-233 Dioxide
FuelMass_kg 8.82
FuelEnrichment_Percent 0.97
ControlRodComposition Hafnium Carbide
ControlRodMass_kg 133
NeutronReflector Diamond
ReflectorThickness_m 0
AverageNeutronFlux__m2_s 2.2e+020
InnerTurbopump
Composition Amorphous Carbon
PumpRadius_m 0.69
RotationalSpeed_RPM 479
ThermocoupleInnerDimensions_m 3 8.7
Thermocouple
PTypeComposition Osmium
NTypeComposition Tungsten
Length_m 0.001
ThermocoupleExitTemperature_K 2500
OuterCoolant Sodium
OuterTurbopump
Composition Selenium
PumpRadius_m 0.59
RotationalSpeed_RPM 504
LaserModule [AE] 100 MW Nd-YAG 1 Mm Laser 2
Description Version 3. By Apophys.
UsesCustomName true
ArcLamp
GasComposition Krypton
EnvelopeComposition Diamond
PowerSupplied_W 1e+008
Radius_m 0.001
CavityWallComposition Gold
CavityCoolantComposition Hydrogen
CavitySemimajorAxis_m 0.2
CavitySemiminorAxis_m 0.198
GainMedium Nd:YAG
OpticalNodes 3000000
LasingRodRadius_m 0.0025
Mirror
Composition Copper
OutputCoupler
Composition Fused Quartz
CoolantTurbopump
Composition Silicon
PumpRadius_m 0.33
RotationalSpeed_RPM 119
CoolantInletTemperature_K 1000
FrequencyDoubler
NonlinearOptic
Composition Silver Gallium Selenide
OpticLength_m 0.024
OpticRadius_m 0.01
SecondFrequencyDoubler
NonlinearOptic
Composition Silver Gallium Selenide
OpticLength_m 0.012
OpticRadius_m 0.01
ApertureRadius_m 2.39
FocusingMirror
Composition Aluminum
Unmounted false
Turret
InnerRadius_m 5.07
Extruded false
ArmorComposition Polytetrafluoroethylene
ArmorThickness_m 0.002
MomentumWheels
Composition Amorphous Zirconium Steel
RotationalSpeed_RPM 1860
EngagementRange_km 1000
TargetsShips true
TargetsShots true
PropellantTankModule [AE] 10 t Neon Tank 2
Description Version 2. By Apophys.
UsesCustomName true
Propellant Neon
StructureComposition Selenium
ReactionMass_kg 10000
HeightToRadiusRatio 15
AdditionalArmorThickness_m 0
RadiatorModule [AE] 0.45 GW Silicon Laser Radiator 2
Description Version 2. By Apophys.
UsesCustomName true
Composition Silicon
PanelWidth_m 5
Height_m 14.8
Thickness_m 0.001
ArmorThickness_m 0.001
Panels 20
FrontTaper_radians 0
BackTaper_radians 0
SurfaceFinish Diamond
RadiatorModule [AE] 0.5 GW BN Reactor Radiator 2
Description Version 2. By Apophys.
UsesCustomName true
Composition Boron Nitride
PanelWidth_m 5
Height_m 7.3
Thickness_m 0.001
ArmorThickness_m 0.001
Panels 20
FrontTaper_radians 0
BackTaper_radians 0
SurfaceFinish Diamond
CrewModule [AE] 51 Crew Module 2
UsesCustomName true
CrewCapacity 51
Decks 17
StructureMaterial Magnesium
ShellThickness_m 0.01
RadiatorModule [AE] 1.5 x 8 Silicon Radiator 2
UsesCustomName true
Composition Silicon
PanelWidth_m 0.75
Height_m 8
Thickness_m 0.001
ArmorThickness_m 0.001
Panels 2
FrontTaper_radians 0
BackTaper_radians 0
SurfaceFinish Diamond
RadiationShieldModule [AE] 5 m Diameter 1 cm Li-6 2
Description Version 1. By Apophys.
UsesCustomName true
Composition Lithium-6
Dimensions_m 2.5 0.01
RadiationShieldModule [AE] 18 m Diameter 5 cm PTFE 2
UsesCustomName true
Composition Polytetrafluoroethylene
Dimensions_m 9 0.05
CraftBlueprint [AE] 152 mg 1 cm Flak 2
Description Version 2. By Apophys.
Modules
[AE] 150 mg 1 cm Flak 2 1 0 null 0
[AE] 3 mm 2 mg AC Shell Cap 2 1 0.5 null 0
Armor
RailgunModule [AE] 100 MW 50 km-s 152 mg Flak Railgun 2
Description Version 3. By Apophys.
UsesCustomName true
PowerConsumption_W 1e+008
Capacitor
Count 1
DielectricComposition Biaxially Oriented Polypropylene
Dimensions_m 1 0.649
Separation_m 1.2e-006
Rails
Composition Zirconium Copper
Thickness_m 0.0604
Length_m 3.43
BarrelArmor
Composition Graphite Aerogel
Thickness_m 0.585
Armature
Composition Osmium
BoreRadius_m 0.00445
Mass_kg 0.001
Tracer null
Payload [AE] 152 mg 1 cm Flak 2
Loader
PowerConsumption_W 37000
ExternalMount false
InternalMount false
Turret
InnerRadius_m 0.921
Extruded false
ArmorComposition Polytetrafluoroethylene
ArmorThickness_m 0.003
MomentumWheels
Composition Diamond
RotationalSpeed_RPM 11000
TargetsShips true
TargetsShots true
AmmoModule [AE] 5000x 152 mg 1 cm Flak [1] 2
Description Version 1. By Apophys.
UsesCustomName true
SuppliedModule [AE] 100 MW 50 km-s 152 mg Flak Railgun 2
AmmoBay
Capacity 5000
Stacks 2
ArmorComposition Silica Aerogel
ArmorThickness_m 0.001
CraftBlueprint [AE] 2GW Deep Fryer 2
Description Version 3. By Apophys.
Modules
[AE] 1 GW Neon MPD 2 2 0 null 0
[AE] 1.01 GW Reactor 2 1 0.4375 null 0
[AE] 100 MW Nd-YAG 1 Mm Laser 2 18 82.821 null 0
[AE] 10 t Neon Tank 2 9 -0.86597 null 0
[AE] 0.45 GW Silicon Laser Radiator 2 2 61.266 [AE] 100 MW Nd-YAG 1 Mm Laser 2 0
[AE] 0.5 GW BN Reactor Radiator 2 2 27.892 [AE] 1.01 GW Reactor 2 0
[AE] 51 Crew Module 2 1 -0.64258 null 0
[AE] 1.5 x 8 Silicon Radiator 2 4 4.7688 [AE] 51 Crew Module 2 0
[AE] 100 MW 50 km-s 152 mg Flak Railgun 2 2 79.113 null 0
[AE] 5000x 152 mg 1 cm Flak [1] 2 12 5.5784 null 0
[AE] 1.01 GW Reactor 2 1 1.4375 null 0
[AE] 0.5 GW BN Reactor Radiator 2 2 50.185 [AE] 1.01 GW Reactor 2 0
[AE] 5 m Diameter 1 cm Li-6 2 1 -0.10254 null 0
[AE] 0.45 GW Silicon Laser Radiator 2 2 39.044 [AE] 100 MW Nd-YAG 1 Mm Laser 2 0
[AE] 18 m Diameter 5 cm PTFE 2 1 66.763 null 0
Default Remote Control 1 9.7194 null 0
Armor
I might update the design to reflect design choices possible in the recent patches, specifically I may add concave armor. But it still works fine as it is; surprisingly, nothing broke since it was made. |
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ghgh
Full Member
Still trying to make kinetics work.
Posts: 136
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Post by ghgh on Aug 25, 2018 22:18:33 GMT
That seems ideal given the range you are dealing with. I wonder if there is a way to Whipple the lens in case micrometeorites ever get simulated. By the way, why do you use polytetrafluoroethylene over polyethylene for your armor?
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