 
         
    Hi-Well Cargo Pumping System
                HYUNDAI SUBMERGED CARGO PUMPING SYSTEM based upon hydraulically
                driven submerged cargo pumps, is used for chemical and product carriers,
                crude carriers, FPSO units and others. The system is designed for profitable
                cargo handling, efficient stripping and tank cleaning. HHI-EMD uses state-of-
                the-art computer aided design technology and is staffed with a qualified and
                experienced team of engineers and technicians to design, manufacture and
                factory test each pump.
            
 
                     
                     
                    
                        Hi-Well Cargo Pump can be started from the remote control
                        panel or the local control valve. Through the PFC block on
                        the pump top plate, pump always runs at the maximum
                        discharge flow rate without regulating of discharge valve.
                        According to the discharge loads, the pump speed is
                        changed by the hydraulic motor. Hydraulic power package
                        sustains the best operating conditions irrespective of the
                        type of cargos. Power consumption is automatically
                        matched to the discharge situation.
                    
                        When the cargo tank is almost empty, stripping is started to
                        optimal cargo empty. First, reduce the pump speed to
                        suitable speed for stripping and close the discharge cargo
                        valve, and then insert compressed air, inert gas or nitrogen
                        into the pipestack to empty the cargo in pipestack. During
                        stripping, the pump impeller acts as a non-return valve to
                        prevent cargo from returning to tank. Hyundai submerged
                        cargo pumps also satisfy the class regulation for stripping.
                    
                        The cofferdam of cargo pump should be purged both
                        before and after discharge operation and then check the
                        leakage volume without checking other special devices or
                        disassembly of the pump
                    
| 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 |