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Post by newageofpower on Dec 6, 2016 16:09:48 GMT
You used 15kg of boron nitride for the control rod. Use 15kg of U-233 dioxide instead, as per the instructions. It's much denser, so it fits.  That's... Ludicrous. "Now, for our reactor's safety mechanism... MORE FISSILES! YAY!" |
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Post by ash19256 on Dec 6, 2016 23:46:39 GMT
You used 15kg of boron nitride for the control rod. Use 15kg of U-233 dioxide instead, as per the instructions. It's much denser, so it fits. That's... Ludicrous. "Now, for our reactor's safety mechanism... MORE FISSILES! YAY!" I believe that U-233 Dioxide, in any composition slot that doesn't let you choose enrichment, is automatically minimally enriched, so most of that is actually going to be depleted uranium dioxide, which IIRC can't be realistically used as a reactor fuel IRL because it takes too much energy to make it fission. |
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Post by newageofpower on Dec 7, 2016 1:04:40 GMT
I tried straight depleted uranium dioxide, doesn't work very well as a moderator material... it's much cheaper, too.
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Post by ash19256 on Dec 7, 2016 6:03:58 GMT
I tried straight depleted uranium dioxide, doesn't work very well as a moderator material... it's much cheaper, too. Well, for what ever reason, U-233 Dioxide works pretty well as both a fuel and a control rod material for high-density/low size reactors. I've seen it used in a rather neat 1.33 kW micro reactor that was smaller than a Snickers bar. |
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Post by lawson on Dec 7, 2016 8:42:36 GMT
You used 15kg of boron nitride for the control rod. Use 15kg of U-233 dioxide instead, as per the instructions. It's much denser, so it fits. That's... Ludicrous. "Now, for our reactor's safety mechanism... MORE FISSILES! YAY!" I think in this case, the U-233 control rods increase output when inserted instead of decreasing output like Boron-Nitride control rods. Both cases allow the reactivity of the core to be regulated. |
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Post by The Astronomer on Dec 9, 2016 12:31:48 GMT
This need to be a pinned post...
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Post by amimai on Dec 9, 2016 13:48:22 GMT
I notice you lack any good MPD drives, BEHOLD! minimaxed 50GW MPD's... some notes: Mercury MPD : This has the best density and acceleration of all MPD, if you need to get a lot of mass going very fast this should be your go-to Neon MPD : This is the cheapest MPD, but its has less acceleration per GW, its a straight up trade, cost and dV for burn time and acceleration (+40% dV, -45% g0, +45% burn time) while mercury can burn straight out most planets gravity wells with neon you will often find you need to slingshot and gravity assist your way out that can add weeks or months to journey time. materials: the ones stated below are the best I have yet found, cost for MPD is really a non-issue so you can go wild, I imagine my ships crew make replacement heads for MPD out of spent fuel rods from the reactor in their free time... mercury booster (186km dV, 37mg0, 4.2d burn time) MagnetoplasmadynamicThrusterModule 192 km/s 53.7 GW Mercury Gimballed Magnetoplasmadynamic Thruster
CathodeRadius_m 0.17
ChamberThickness_m 0.056
AnodeThickness_m 0.0014
ThrusterLength_m 0.066
CathodeComposition Potassium
AnodeComposition Depleted Uranium
InsulatorComposition Boron
Propellant Mercury
Current_A 2.6e+005
Injector
Composition Aluminum
PumpRadius_m 0.062
RotationalSpeed_RPM 9.6
Gimbal
InnerRadius_m 0.1
ArmorComposition Silica Aerogel
ArmorThickness_m 0.0001
ReactionWheels
Composition Potassium
RotationalSpeed_RPM 13000
GimbalAngle_degrees 20Neon Booster (270km dV, 25mg0,  burn time) MagnetoplasmadynamicThrusterModule 274 km/s 52.6 GW Neon Gimballed Magnetoplasmadynamic Thruster
CathodeRadius_m 0.036
ChamberThickness_m 0.05
AnodeThickness_m 0.001
ThrusterLength_m 0.2
CathodeComposition Potassium
AnodeComposition Depleted Uranium
InsulatorComposition Boron
Propellant Neon
Current_A 3.2e+005
Injector
Composition Aluminum
PumpRadius_m 0.077
RotationalSpeed_RPM 31
Gimbal
InnerRadius_m 0.14
ArmorComposition Silica Aerogel
ArmorThickness_m 0.0001
ReactionWheels
Composition Potassium
RotationalSpeed_RPM 12000
GimbalAngle_degrees 20 |
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Post by The Astronomer on Dec 9, 2016 14:19:26 GMT
I notice you lack any good MPD drives, BEHOLD! minimaxed 50GW MPD's... some notes: Mercury MPD : This has the best density and acceleration of all MPD, if you need to get a lot of mass going very fast this should be your go-to Neon MPD : This is the cheapest MPD, but its has less acceleration per GW, its a straight up trade, cost and dV for burn time and acceleration (+40% dV, -45% g0, +45% burn time) while mercury can burn straight out most planets gravity wells with neon you will often find you need to slingshot and gravity assist your way out that can add weeks or months to journey time. materials: the ones stated below are the best I have yet found, cost for MPD is really a non-issue so you can go wild, I imagine my ships crew make replacement heads for MPD out of spent fuel rods from the reactor in their free time... mercury booster (186km dV, 37mg0, 4.2d burn time) MagnetoplasmadynamicThrusterModule 192 km/s 53.7 GW Mercury Gimballed Magnetoplasmadynamic Thruster
CathodeRadius_m 0.17
ChamberThickness_m 0.056
AnodeThickness_m 0.0014
ThrusterLength_m 0.066
CathodeComposition Potassium
AnodeComposition Depleted Uranium
InsulatorComposition Boron
Propellant Mercury
Current_A 2.6e+005
Injector
Composition Aluminum
PumpRadius_m 0.062
RotationalSpeed_RPM 9.6
Gimbal
InnerRadius_m 0.1
ArmorComposition Silica Aerogel
ArmorThickness_m 0.0001
ReactionWheels
Composition Potassium
RotationalSpeed_RPM 13000
GimbalAngle_degrees 20Neon Booster (270km dV, 25mg0, burn time) MagnetoplasmadynamicThrusterModule 274 km/s 52.6 GW Neon Gimballed Magnetoplasmadynamic Thruster
CathodeRadius_m 0.036
ChamberThickness_m 0.05
AnodeThickness_m 0.001
ThrusterLength_m 0.2
CathodeComposition Potassium
AnodeComposition Depleted Uranium
InsulatorComposition Boron
Propellant Neon
Current_A 3.2e+005
Injector
Composition Aluminum
PumpRadius_m 0.077
RotationalSpeed_RPM 31
Gimbal
InnerRadius_m 0.14
ArmorComposition Silica Aerogel
ArmorThickness_m 0.0001
ReactionWheels
Composition Potassium
RotationalSpeed_RPM 12000
GimbalAngle_degrees 20ARE YOU CRAZY, MI? 55 GW OF POWER? NOT EVEN APOPHYS' REACTORS WILL HELP! Well, I think we will really want tens of gigantic radiator arrays to make this tiny thing work... |
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Post by amimai on Dec 9, 2016 15:14:12 GMT
MPD systems : go big or go home! quite literally, for those materials (the best possible) saturation point is ~45GW beyond that point gains are flat, but below that point for every extra GW you put in you get just that bit more thrust per kg of fuel. looks sort of like this for mercury (brackets are approximate gains in efficiency for every additional input GW) 2.1kg/s : 22GW (still outperforms any conventional engine but not really that great (+320MW/kg/s per dGW input energy)) 2.3kg/s : 28GW (+290MW/kg/s per dGW input energy) 2.5kg/s : 35GW (+260MW/kg/s per dGW input energy) 2.75kg/s : 47GW (sweet spot is around here, additional efficiency gains fall off below +250MW/kg/s per dGW input energy) 2.9kg/s : 55GW (+230MW/kg/s per dGW input energy) 4.0kg/s : 155GW (+190MW/kg/s per dGW input energy)   |
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Post by newageofpower on Dec 9, 2016 22:10:21 GMT
ARE YOU CRAZY, MI? 55 GW OF POWER? NOT EVEN APOPHYS' REACTORS WILL HELP! Well, I think we will really want tens of gigantic radiator arrays to make this tiny thing work... I use 200 GW MPDs on my civilian megaships. Just use more Apophys. The kilometers of radiator? Not a problem if you leave them thin as paper. |
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Post by The Astronomer on Dec 10, 2016 1:27:54 GMT
ARE YOU CRAZY, MI? 55 GW OF POWER? NOT EVEN APOPHYS' REACTORS WILL HELP! Well, I think we will really want tens of gigantic radiator arrays to make this tiny thing work... I use 200 GW MPDs on my civilian megaships. Just use more Apophys. The kilometers of radiator? Not a problem if you leave them thin as paper. Apophys Power Cooperation. Where can I find that design? |
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Post by newageofpower on Dec 10, 2016 1:43:16 GMT
You use 8x Apophys 25GW...
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Post by The Astronomer on Dec 10, 2016 3:26:53 GMT
You use 8x Apophys 25GW... Uh. Megaships only? |
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Post by newageofpower on Dec 10, 2016 4:08:08 GMT
What do you mean?
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Post by The Astronomer on Dec 10, 2016 4:38:07 GMT
I mean, these 60 m reactors look not very fitting to my spacecrafts... |
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burn time)