Selective Catalytic Reduction
현대중공업은 Tier III 한계에 맞게 설계되어 Nox 배출량을 95%까지 줄일 수 있는 NoNOxTMSCR 기술을 제공합니다. 현대중공업은 낮은 생산원가를 달성하고 고객에게 이익을 주기 위해 설치, 성능 및 엔진 전체를 최적화하고 있습니다.
SCR은 화학반응 과정을 통해 배기가스의 NOx를 줄일 수 있는 기술입니다. 요소 용액은 일반적으로 뜨거운 가스 흐름에서 암모니아와 이산화탄소로 분해되기 때문에 환원제로 채택됩니다.
Low Pressure SCR for 4-Stroke (<0.1% or <3.5% fuel sulfur design)
Low pressure SCR for 2-Stroke engine
(<0.1% fuel sulfur only)
High pressure SCR for 2-Stroke engine
(<0.1% or <3.5% fuel sulfur design))
| Fuel | Pros | Cons |
CO2 (Tank to propeller, Oil is 1.0) |
TRL1) (Technology Readiness Level) |
Fuel Cost (ton) |
Eng. Cost (Main Engine, oil is 1.0) |
|---|---|---|---|---|---|---|
| LNG |
|
|
0.8 | 9 | $310 | 1.4 |
| LPG |
|
|
0.9 | 9 | $340 | 1.5 |
| Methanol |
|
|
0.9 | 6 | $410 | 1.5 |
| Ammonia |
|
|
0.1 | 2 | $500 | 1.7 |
| Hydrogen |
|
|
0.0 | - | Over $10,000 | N/A |
| Fuel | Pros | Cons |
CO2 (Tank to propeller, Oil is 1.0) |
TRL1) (Technology Readiness Level) |
Fuel Cost (ton) |
Eng. Cost (Main Engine, oil is 1.0) |
|---|---|---|---|---|---|---|
| LNG |
|
|
0.8 | 9 | $310 | 1.4 |
| LPG |
|
|
0.9 | 9 | $340 | 1.5 |
| Methanol |
|
|
0.9 | 6 | $410 | 1.5 |
| Ammonia |
|
|
0.1 | 2 | $500 | 1.7 |
| Hydrogen |
|
|
0.0 | - | Over $10,000 | N/A |
| Property | MGO | LNG | LPG | Methanol | L_NH3 | L_H2 |
|---|---|---|---|---|---|---|
| Flash point [℃] | 52 | -188 | -105 | 11 | 132 | -150 |
| Auto ignition temperature [℃] | 250 | 595 | 459 | 464 | 651 | 535 |
| Boiling point at 1 bar [℃] | 20 | -162 | -42 | 20 | -34 | -253 |
| Low Heating Value [MJ/kg] | 42.7 | 50.0 | 46.0 | 19.9 | 18.6 | 120 |
| Density at 1 bar [kg/m3] | 870 | 470 | 580 | 792 | 682 | 71 |
| Energy density [MJ/L] | 36.6 | 21.2 | 26.7 | 14.9 | 12.7 | 8.5 |
| Fuel tank size | 1.0 | 1.7 | 1.4 | 2.5 | 2.9 | 4.3 |
| Ignition energy [MJ] | 0.23 | 0.28 | 0.25 | 0.14 | 8 | 0.011 |
| Flammable concentration range in the air [%] | 0.6 - 7.5 | 5 - 15 | 2.2 - 9.5 | 5.5 - 44 | 15 - 28 | 4 -75 |
| Property | MGO | LNG | LPG | Methanol | L_NH3 | L_H2 |
|---|---|---|---|---|---|---|
| Flash point [℃] | 52 | -188 | -105 | 11 | 132 | -150 |
| Auto ignition temperature [℃] | 250 | 595 | 459 | 464 | 651 | 535 |
| Boiling point at 1 bar [℃] | 20 | -162 | -42 | 20 | -34 | -253 |
| Low Heating Value [MJ/kg] | 42.7 | 50.0 | 46.0 | 19.9 | 18.6 | 120 |
| Density at 1 bar [kg/m3] | 870 | 470 | 580 | 792 | 682 | 71 |
| Energy density [MJ/L] | 36.6 | 21.2 | 26.7 | 14.9 | 12.7 | 8.5 |
| Fuel tank size | 1.0 | 1.7 | 1.4 | 2.5 | 2.9 | 4.3 |
| Ignition energy [MJ] | 0.23 | 0.28 | 0.25 | 0.14 | 8 | 0.011 |
| Flammable concentration range in the air [%] | 0.6 - 7.5 | 5 - 15 | 2.2 - 9.5 | 5.5 - 44 | 15 - 28 | 4 -75 |