Advantages of Stainless Steel Liner
• Minimum gas permeability of the barrier layer — will allow to effectively store and transport various types of gases (methane, helium, hydrogen, nitrogen, etc.)
• The load-carrying structure of the liner is involved in the strength calculations of the pressure shell of the cylinder — the load takes at least 80 bars
• Stainless steel is a “high-cycle” material; its use allows you to create cylinders with a cyclic load of at least 20,000 loads (aluminum and polymer-composite shells work no more than 5,000 high pressure loads)
• lack of defects of a polyethylene liner:
• cracking under load;
• loss of stability;
• cyclic fatigue from exposure to variable temperatures;
• bundle
Using the developed cylinders will allow creating the following systems that do not have world analogues
| Name | Winding material | Operating pressure | Volume and number of cylinders | Mass of cylinders (without gas) | Methane capacity | system | |
| Container 45’ HCPW 9’1” | carbon fiber | 250 bar | 2800×18 pcs. = 50 400 l | 12240 kg | 15 108 m³ | 10 878 kg | 30 600 000 RUB |
| Semitrailer | carbon fiber | 250 bar | 3600 x 18pcs. = 64800 l | 14400 kg | 19 424 m³ | 13 986 kg | 36 000 000 RUB |
| Railway carriage | carbon fiber | 250 bar | 3600 x 54pcs. = 194400 l | 43200 kg | 58273 m³ | 41 957 kg | 108 000 000 RUB |
Specialized CNG wagons will allow:
- refuel shunting diesel locomotives with gas engine fuel;
- gasify remote railway stations, villages and other consumers currently using fuel oil or diesel fuel;
- refuel PAGS (GFUps).
CNG wagons can be used:
- as gas accumulators instead of stationary storage systems;
- for filling natural gas storage facilities;
- it will be possible to dump the finished product directly into the gas networks as a storage tank and to maintain pressure in the networks.
To fill the CNG of wagons, it is advisable to build automatic compressor stations on gas pipelines:
- minimum construction costs;
- wholesale price of gas;
- minimum cost of operation.
