Latest News| February 18, 2008 | On Feb 18th Smart Energy has officially opened the first CNG station on mainland Singapore at 1 Mandai Link. With 20 filling hoses and a capacity of more than 200 taxis per hour Singapore has now one of the finest CNG stations. Busses as well as CNG trailers can be filled on this multipurpose CNG station Safe CNG Asia is proud to be the CNG equipment supplier for this outstanding project
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| 1 |
GENERAL |
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| 1.1 | NO. OF UNITS : 1 | DRIVER: Electric motor | ||||
| 2 |
OPERATING CONDITION |
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| 2.1 | Service/Stage : continous / 2-3 stage | |||||
| 2.2 | Gas Handled : Natural Gas | |||||
| 2.3 | molecular weight at intake (avg.) 0.68-0.82 kg/m3 | |||||
| 2.4 | Cp/Cv at intake/compressibility Factor 1.30:1.40 / 0.98:0.97 | |||||
| 2.5 | Drive arrangement : axial connection | |||||
| 2.6 | Standard Conditions refers to: Standard Atmospheric pressure (1.033 Kg/cm² abs) and Temperature of 15°C | |||||
| 3 |
SITE CONDITIONS |
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| 3.1 | Installation : not directly exposed to weather conditions | |||||
| 3.2 | Site Ambient Temp. (°C): Min -20 °C Max +40 °C | |||||
| 3.3 | Area Classification : Dangerous Area | |||||
| 4 |
APPLICABLE CODES & SPECIFICATIONS |
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| 4.1 | 1 | Compressor | EUROPEAN NORM P.E.D.
Norm 98/37/CE (machinery) Norm 89/336/CEE (E.M.C. Compatibily) Norm 73/23/CEE (LOW TENSION) Norm 97/23/CE (P.E.D.) EN1012-1 italian NORM D.P.R. 547/55 “CLASS 3” ACCORDING TO 94/9/CE (ATEX) ED It is SUITABLE At use In Ex "Zone 2" Accordingly TO EN 60079-10 (CEI 31-30) |
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| 2 | MACHINES IN PRESSURE | EUROPEAN NORM P.E.D. | ||||
| 3 | SAFETY VALVES | EUROPEAN NORM P.E.D
D.M. 24.5.02 - D.M. 28.6.02 |
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| 4 | GAS PIPING AND FITTINGS | D.M 24.11.84 parte prima - sez. II°
D.M. 24.5.02 - D.M. 28.6.02 DIN 2413 SAE J 514 |
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| 5 | ELECTRICAL EQUIPMENTS | EUROPEAN NORMS
CEI EN 60079-10/CEI EN 60079-14/CEI EN 60204-1/ CEI EN 60439-1 ATEX STANDARD |
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| 6 | VERIFICATION AND TEST | D.M 24.11.84
D.M. 24.5.02 - D.M. 28.6.02 SAFE Std |
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| 5 |
MANUFACTURER’S SPECIFICATION |
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| 5.1 | Name : SAFE Srl | Model:SV4-EM | ||||
| Type: Reciprocating | ||||||
| 5.2 | No. stages | 2-3 | ||||
| Compressors RPM | 1500 | |||||
| Stroke (mm) | 95 | |||||
| 5.3 | Type: | V shape | ||||
| Drive Arrangement: | Synchronous | |||||
| 5.4 | Service/Stage | Continous / 2-3 stages | ||||
| 5.5 | Mol. Wt. At Intake | 16 | ||||
| Cp/Cv Value/ Compressibility Factor at Intake | 1.316 / 0.72 kg/ Sm3 | |||||
| 5.13 | Direction of Rotation from Driving End: | Counter - Clockwise | ||||
| 6 |
PIPING AND INSTRUMENTATION DIAGRAM |
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| 6.1 |
Type of cooling |
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| AIR-WATER | AIR-GAS | |||||
| number of stage | number of stage | |||||
| 2 stages | 3 stages | 2 stages | 3 stages | |||
| Plant gas | G0001119 | G0001108 | G0001117 | G0001109 | ||
| Lubrication plant | H0000376 | H0000376 | H0000377 | H0000377 | ||
| Cooling plant | I-476 | I-472 | G0001117 - H0000377 | G0001109 - H0000377 | ||
| 7 |
LUBRICATION SYSTEM |
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| 7.1 | Frame | Force feed Lubricated | ||||
| Oil filter | Yes | |||||
| Oil pump driven by | Separate oil pump | |||||
| Piston Non Lubricated | Yes | |||||
| 8 |
COOLING SYSTEM |
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| 8.1 | 2nd stage cylinder | Air - water | ||||
| 3rd stage cylinder | Air - water | |||||
| Oil | Water | |||||
| Gas | Air - water | |||||
