now in all ur basic math and science of gas occupying volume tht u stated, where exactly do u justify the capacity of the cylinder being stated as either 55L or 55KG? At 200 bar of pressure, the 55L or 55KG CNG cylinder can hold 8.05KG of CNG. The general awam here, does not state the capacity of a cylinder in terms of pressure(do u disagree? if u do, then u r clearly mistaken)
Now as u say tht the capacity of a cylinder is characterized by the mass of the gas and pressure at which is stored, i completely agree to it since tht is the convention. But in case of CNG cylinders, ppl here state capacity of the cylinder in terms of its size! which is the volume of the water it can hold. both a 55KG/55L and a 40KG/40L cylinder will hold 8.05KG of gas and still be full(since gas occupies the all volume available to it, duh!) but both will b at different pressures.
tell u wht, how abt some1 goes to the merchandiser of CNG cylinders then wht will the seller tell the customer abt the capacity? He will certainly not state the mass of gas alongwith the safety pressure as the capacity, he will only say whether the cylinder is 40KG, 55KG or 60KG. (am i wrong in saying this?)
Since u say tht 55KG is actually the mass of gas tht the cylinder can hold at the maximum pressure, then tell me tht at wht possible safe pressure will the normal CNG cylinder(which holds 8.05KG of gas at 200-210bar) be able to store 55KG of gas?
Coming to the case of carbon fiber cylinder, i'll b glad if u can post the pics of the carbon fiber cylinder tht u own. n do tell me abt its merchandiser.
I m not insulted at all my friend, i m only amused to c how some1 can actually run around in a circle for so long