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CNG (Compressed Natural Gas) refueling system is the system which compresses natural gas and uses such gas to charge an NGV (Natural Gas Vehicle). |
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- Use of natural gas to replace petroleum energy.
- Prevention of air pollution in downtown areas by using a clean fuel.
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- Exhaust gas contains less 30~50% of NOx and CO, and less 20~30% of CO2(when compared to gasoline);
and SOx id not discharged.
- The octane number (e.g., 130 for natural gas and 96 for gasoline) is high, and the compression ratio of an engine
is improved to save fuel consumption.
- The anti-knocking capability is good, and engine can be easily started under low-temperature conditions.
- Logistics costs can be saved as fuel is supplied via a nation-wide distribution network.
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- The majority of the domestic CNG charging stations use the Hyosung system.
- The compression package produces little noise.
- Little vibration causes few failures for the facility, ensuring low-noise operation.
- High efficiency of the compressor can save electricity costs.
- Reduced oil consumption saves maintenance costs.
- Mechanical, electric and controlling components of a package are designed and manufactured with our own
technology.
- Machines and measuring instruments of the compressor and charging system are maintained by service
professionals of Hyosung.
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- Compresses low-pressure gas in a city gas pipe to 25MPa to supply a storage tank or dispenser.
- Has a built-in device to alleviate high pressure gas when a compressor stops.
- Removes the heat generated from gas compression, and also removes foreign substances with a filter.
- Achieves low noise/vibration and stable operation.
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- Selects the priority bank of the storage container where compressed gas will be stored.
- Selects a bank and controls a gas path upon supplying the gas from a storage container to a dispenser.
- System protection devices (ESD, Emergency Shut Down)
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| - Stores the compressed gas at 25MPa pressure, and supplies gas to a dispenser. |
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- Injects high pressure gas supplied from a storage tank and compressor to a bus.
- Includes a flowmeter and a temperature compensation device to measure gas and control the charging pressure.
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| Item |
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Model
name |
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Allowed input pressure(Max) |
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Flow amount(Max) |
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Power
(Max) |
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RPM
(Max) |
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No. of
Buses |
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| Fixed type for car charging |
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Small capacity |
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HI-CNG-50 |
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8.5 kg/cm² |
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740 Nm³/hr |
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150HP |
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1,785 RPM |
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20 - 60
per day |
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| Medium capacity |
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HI-CNG-
100-NA |
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8.5 kg/cm² |
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1,377 Nm³/hr |
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250HP |
Max 75
per day |
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HI-CNG-
100-NB |
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5.5 kg/cm² |
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1,110 Nm³/hr |
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HI-CNG-
100-CA |
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8.5 kg/cm² |
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1,377 Nm³/hr |
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HI-CNG-
100-CB |
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5.5 kg/cm² |
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1,110 Nm³/hr |
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| Fixed type for mobile vehicle charging(M/S) |
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Large capacity |
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HI-CNG-MS |
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60 kg/cm² |
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2,000 Nm³/hr |
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200HP |
Max 100
per day |
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 Compressor package |
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| 1,020Nm3/hr at 250HP @ 4 units Input pressure = 5kg/cm2 Output pressure = 253kg/cm2 Ariel JGQ/2/4 compressor |
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| Charger |
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| One bank, CT1000 Quick charger @ 4 units ( 5-6 min per car) |
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| Storage tank |
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| 1300 liters @ 6 units |
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| Handling capacity : 200 buses per day |
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| Compressor package |
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| 2,000Nm3/hr at 200HP @ 2 units Input pressure = 40kg/cm2 Output pressure = 253kg/cm2 Ariel JGQ/2/3 compressor |
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| Charger |
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| One bank, CT5000 Quick charger @ 2 units |
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| Storage tank |
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| 1300 liters @ 2 units |
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| Bus handling capacity : for T/T only |
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