|
|
Post by jtyotjotjipaefvj on Sept 3, 2017 9:35:56 GMT
It's a bit on the heavy side innit? Usually my reactors weigh roughly 10 kg per megawatt. Reducing reactor and turbopump size should help with that. |
|
|
|
Post by RiftandRend on Sept 3, 2017 9:44:14 GMT
It's a bit on the heavy side innit? Usually my reactors weigh roughly 10 kg per megawatt. Reducing reactor and turbopump size should help with that. Do note the 3% efficiency. No fiddling with turbopumps will help. |
|
|
|
Post by jtyotjotjipaefvj on Sept 3, 2017 11:03:34 GMT
It's a bit on the heavy side innit? Usually my reactors weigh roughly 10 kg per megawatt. Reducing reactor and turbopump size should help with that. Do note the 3% efficiency. No fiddling with turbopumps will help. Well it's still 60% coolant by weight, which is way too much. |
|
|
|
Post by Rocket Witch on Sept 3, 2017 13:35:06 GMT
It's a bit on the heavy side innit? Usually my reactors weigh roughly 10 kg per megawatt. Reducing reactor and turbopump size should help with that. I un-optimised the pump/coolant mass to get more power without increasing the heat produced. A (stock fuel) 3000K reactor won't match 10kg/MW in any case, but it does continue the trend of smaller radiators. I've now cut 800kg off by skipping the extra 50kw. If such a reactor were fully mass-optimal it might get 400kg/MW. |
|
|
|
Post by jtyotjotjipaefvj on Sept 3, 2017 13:39:44 GMT
It's a bit on the heavy side innit? Usually my reactors weigh roughly 10 kg per megawatt. Reducing reactor and turbopump size should help with that. I un-optimised the pump/coolant mass to get more power without increasing the heat produced. A (stock fuel) 3000K reactor won't match 10kg/MW in any case, but it does continue the trend of smaller radiators. I've now cut 800kg off by skipping the extra 50kw. If such a reactor were fully mass-optimal it might get 400kg/MW. You won't get smaller radiators with that reactor. A stock reactor can get ~16% efficiency, meaning it produces 5 times less heat than yours. The additional 20% in exit temperature means you only radiate ~2x more heat per square meter, if memory serves. So you lose both on mass and radiator area (and therefore, radiator mass). |
|
|
|
Post by Rocket Witch on Sept 3, 2017 14:33:10 GMT
You won't get smaller radiators with that reactor. A stock reactor can get ~16% efficiency, meaning it produces 5 times less heat than yours. The additional 20% in exit temperature means you only radiate ~2x more heat per square meter, if memory serves. So you lose both on mass and radiator area (and therefore, radiator mass). Huh, you're right. Boo, how boring! A lot of this inefficiency seems to come from having to use pyrolytic carbon instead of osmium in the thermocouple. If there were something as good as osmium at >3400K this would be 10-11% efficient. Maybe I can track down Seebeck coefficients for things like hafnium carbide... |
|
|
|
Post by bigbombr on Sept 3, 2017 18:29:21 GMT
You won't get smaller radiators with that reactor. A stock reactor can get ~16% efficiency, meaning it produces 5 times less heat than yours. The additional 20% in exit temperature means you only radiate ~2x more heat per square meter, if memory serves. So you lose both on mass and radiator area (and therefore, radiator mass). Huh, you're right. Boo, how boring! A lot of this inefficiency seems to come from having to use pyrolytic carbon instead of osmium in the thermocouple. If there were something as good as osmium at >3400K this would be 10-11% efficient. Maybe I can track down Seebeck coefficients for things like hafnium carbide... Graphene to the rescue! |
|
|
|
Post by madmike on Sept 4, 2017 3:37:59 GMT
So after a bit of fiddling with what I think was one of Ender's designs, I came up with this monstrosity. Basically, it dumps five kilos of exploding osmium into the target every six seconds, which allows for near-complete transfer of all 240MJ of energy. Getting it to hit a maneuvering target is problematic, but it has a tendency to one-shot most sub-100m ships. Stupid but fun.  |
|
|
|
Post by RiftandRend on Sept 4, 2017 3:46:23 GMT
So after a bit of fiddling with what I think was one of Ender's designs, I came up with this monstrosity. Basically, it dumps five kilos of exploding osmium into the target every six seconds, which allows for near-complete transfer of all 240MJ of energy. Getting it to hit a maneuvering target is problematic, but it has a tendency to one-shot most sub-100m ships. Stupid but fun. How heavy is that thing? And how heavy is the flak payload it shoots? |
|
|
|
Post by madmike on Sept 4, 2017 4:03:16 GMT
So after a bit of fiddling with what I think was one of Ender's designs, I came up with this monstrosity. Basically, it dumps five kilos of exploding osmium into the target every six seconds, which allows for near-complete transfer of all 240MJ of energy. Getting it to hit a maneuvering target is problematic, but it has a tendency to one-shot most sub-100m ships. Stupid but fun. How heavy is that thing? And how heavy is the flak payload it shoots? The whole thing is 2.51kt, and the flak round is 5kg of osmium with about 10g of cyclonite. ExplosiveModule 5.00 kg Cyclonite Flak Bomb
UsesCustomName false
Length_m 0.039
ExplosiveMass_kg 0.01
ExplosiveComposition Cyclonite
ShrapnelMass_kg 4.99
ShrapnelComposition Osmium
Detonator
HardRange_km 0
ActivationRange_km 0.5
MinimumRange_km 0
OverrideTimer_s 0
TargetsShips true
TargetsShots true
CraftBlueprint 86mm Flak
Modules
5.00 kg Cyclonite Flak Bomb 1 0 null 0
Armor
CoilgunModule 1.000 GW 86mm Turretted Capacitor Coilgun Flak Cannonade
UsesCustomName true
PowerConsumption_W 1e+009
Capacitor
DielectricComposition Hafnia
Dimensions_m 2.9 7.2
Separation_m 1e-007
Coil
Composition Osmium
WireRadius_m 0.1
NumberOfTurns 15
NumberOfLayers 5
NumberOfStages 1
BarrelArmor
Composition Diamond
Thickness_m 1.15
Armature
Composition Magnetic Metal Glass
BoreRadius_m 0.043
Mass_kg 6.3
Tracer null
Payload 86mm Flak
Loader
PowerConsumption_W 7.5e+005
ExternalMount false
InternalMount false
Turret
InnerRadius_m 3.3
Extruded true
ArmorComposition Vanadium Chromium Steel
ArmorThickness_m 0.05
ElectricActuators
PermanentMagnet Neodymium Iron Boron
PowerConsumption_W 1.5e+006
AttachedAmmoBay
Capacity 10000
Stacks 5
TargetsShips true
TargetsShots true
It could likely do with some heavy optimization, but I'm just having fun derping around the thing on one of my frigates. |
|
|
|
Post by Rocket Witch on Sept 4, 2017 4:06:38 GMT
I don't use graphene, apparently just because I don't like super-things, but I did improve the efficiency somewhat with tungsten rhenium and cut a lot of mass with full sodium coolant. Silicon seems to improve the reactor's lifetime for a given fuel mass, but the overall assembly is heavier anyway due to its density. ~2750K outlet with ~10% efficiency may be the practical limit for stock type reactors in cutting radiator size. How heavy is that thing? And how heavy is the flak payload it shoots? Actually, has anyone even played with really heavy flak payloads? Maybe you could knock out an entire fleet in one shot with a kiloton shell or something. |
|
|
|
Post by madmike on Sept 4, 2017 5:43:53 GMT
How heavy is that thing? And how heavy is the flak payload it shoots? Actually, has anyone even played with really heavy flak payloads? Maybe you could knock out an entire fleet in one shot with a kiloton shell or something. I'll see if I can't test that out tomorrow. I don't normally mess around with flak much in my offensively large guns, but that would be interesting to try. Like a giant space shotgun. |
|
|
|
Post by RiftandRend on Sept 4, 2017 8:43:03 GMT
How heavy is that thing? And how heavy is the flak payload it shoots? The whole thing is 2.51kt, and the flak round is 5kg of osmium with about 10g of cyclonite. ExplosiveModule 5.00 kg Cyclonite Flak Bomb
UsesCustomName false
Length_m 0.039
ExplosiveMass_kg 0.01
ExplosiveComposition Cyclonite
ShrapnelMass_kg 4.99
ShrapnelComposition Osmium
Detonator
HardRange_km 0
ActivationRange_km 0.5
MinimumRange_km 0
OverrideTimer_s 0
TargetsShips true
TargetsShots true
CraftBlueprint 86mm Flak
Modules
5.00 kg Cyclonite Flak Bomb 1 0 null 0
Armor
CoilgunModule 1.000 GW 86mm Turretted Capacitor Coilgun Flak Cannonade
UsesCustomName true
PowerConsumption_W 1e+009
Capacitor
DielectricComposition Hafnia
Dimensions_m 2.9 7.2
Separation_m 1e-007
Coil
Composition Osmium
WireRadius_m 0.1
NumberOfTurns 15
NumberOfLayers 5
NumberOfStages 1
BarrelArmor
Composition Diamond
Thickness_m 1.15
Armature
Composition Magnetic Metal Glass
BoreRadius_m 0.043
Mass_kg 6.3
Tracer null
Payload 86mm Flak
Loader
PowerConsumption_W 7.5e+005
ExternalMount false
InternalMount false
Turret
InnerRadius_m 3.3
Extruded true
ArmorComposition Vanadium Chromium Steel
ArmorThickness_m 0.05
ElectricActuators
PermanentMagnet Neodymium Iron Boron
PowerConsumption_W 1.5e+006
AttachedAmmoBay
Capacity 10000
Stacks 5
TargetsShips true
TargetsShots true
It could likely do with some heavy optimization, but I'm just having fun derping around the thing on one of my frigates. I've gotten 9 kilos to 7.77 km/s out of a 303 ton railgun. Railguns seem flat out better than coilguns even for payload launching, try using one instead. |
|
|
|
Post by dragonkid11 on Sept 4, 2017 10:56:16 GMT
The whole thing is 2.51kt, and the flak round is 5kg of osmium with about 10g of cyclonite. ExplosiveModule 5.00 kg Cyclonite Flak Bomb
UsesCustomName false
Length_m 0.039
ExplosiveMass_kg 0.01
ExplosiveComposition Cyclonite
ShrapnelMass_kg 4.99
ShrapnelComposition Osmium
Detonator
HardRange_km 0
ActivationRange_km 0.5
MinimumRange_km 0
OverrideTimer_s 0
TargetsShips true
TargetsShots true
CraftBlueprint 86mm Flak
Modules
5.00 kg Cyclonite Flak Bomb 1 0 null 0
Armor
CoilgunModule 1.000 GW 86mm Turretted Capacitor Coilgun Flak Cannonade
UsesCustomName true
PowerConsumption_W 1e+009
Capacitor
DielectricComposition Hafnia
Dimensions_m 2.9 7.2
Separation_m 1e-007
Coil
Composition Osmium
WireRadius_m 0.1
NumberOfTurns 15
NumberOfLayers 5
NumberOfStages 1
BarrelArmor
Composition Diamond
Thickness_m 1.15
Armature
Composition Magnetic Metal Glass
BoreRadius_m 0.043
Mass_kg 6.3
Tracer null
Payload 86mm Flak
Loader
PowerConsumption_W 7.5e+005
ExternalMount false
InternalMount false
Turret
InnerRadius_m 3.3
Extruded true
ArmorComposition Vanadium Chromium Steel
ArmorThickness_m 0.05
ElectricActuators
PermanentMagnet Neodymium Iron Boron
PowerConsumption_W 1.5e+006
AttachedAmmoBay
Capacity 10000
Stacks 5
TargetsShips true
TargetsShots true
It could likely do with some heavy optimization, but I'm just having fun derping around the thing on one of my frigates. I've gotten 9 kilos to 7.77 km/s out of a 303 ton railgun. Railguns seem flat out better than coilguns even for payload launching, try using one instead. 9 kilogram slug at 7.77 kmps with only 303 ton railgun!? Christ, I'm getting rusty and fallen out with the game but that sounds amazing. Mind if I have a look at the blueprint? |
|
|
|
Post by RiftandRend on Sept 4, 2017 13:09:16 GMT
I've gotten 9 kilos to 7.77 km/s out of a 303 ton railgun. Railguns seem flat out better than coilguns even for payload launching, try using one instead. 9 kilogram slug at 7.77 kmps with only 303 ton railgun!? Christ, I'm getting rusty and fallen out with the game but that sounds amazing. Mind if I have a look at the blueprint? It's reload is once every 2.5 seconds and it shoots 9.05 kg nukes instead of solid slugs, but here it is. |
|
