Thursday 20 October 2016

LPG AutoGas Station Installation Drawing, Design

Autogas is the common name for liquefied petroleum gas (LPG) when it is used as a fuel in internal combustion engines invehicles as well as in stationary applications such as generators. It is a mixture of propane and butane.
Autogas is widely used as a "green" fuel, as its use reduces CO2 exhaust emissions by around 15% compared to petrol. One litre of petrol produces 2.3 kg of CO2 when burnt, whereas the equivalent amount of autogas (1.33 litre due to lower density of autogas) produces only 1.5 * 1.33 = 2 kg of CO2 when burnt. It has an octane rating (MON/RON) that is between 90 and 110 and an energy content (higher heating value—HHV) that is between 25.5 megajoules per litre (for pure propane) and 28.7 megajoules per litre (for pure butane) depending upon the actual fuel composition.

Autogas is the third most popular automotive fuel in the world, with approximately 16 million of 600 million passenger cars powered using the fuel, representing less than 3% of the total market share. Approximately half of all autogas-fueled passenger vehicles are in the five largest markets (in descending order): Turkey, South Korea, Poland, Italy, and Australia.
IN PAKISTAN
LPG was allowed to be used as an automotive fuel in 2005 and first Autogas station became operative in 2010 located at Sialkot. Uptill 2014 there were only four Autogas stations operating in Pakistan serving around 1000 vehicles. LPG failed to attract attention of the investors and customers due to extremely cheap prices of CNG as Pakistan had huge Natural Gas reserves. Pakistan in a decade became the largest consumer of CNG. This impacted Pakistan's reserves in a negative way and they receded in a quick span. In November 2013 Oil and Gas Regulatory Authority issued about 40 NoC's for setting up LPG Autogas stations mainly to PSO, a State owned Petroleum giant. However, in December 2013 Oil and Gas Regulatory Authority (OGRA) contrary to the rest of the world where LPG is promoted, declared LPG a risk to public safety thus banned LPG to be used in Public transport vehicles, thus closing the era of LPG in Pakistan even before it started.

LPG AutoGas Station Installation Drawing, Design

LPG AUTOGAS STATION

UNDERGROUND LPG SYSTEM PROCESS AND INSTRUMENTATION DIAGRAM

BOQ (UNDERGROUND LPG SYSTEM PROCESS AND INSTRUMENTATION DIAGRAM)
ABOVEGROUND LPG SYSTEM PROCESS AND INSTRUMENTATION DIAGRAM

LPG AUTO GAS STATION INSTRUMENTATION PART LIST

Characteristics of LPG

  • LPG – Liquefied Petroleum Gas
  • Mixture of Propane & Butane (95/5)
  • Heavier than air
    • Ignition temperature of LPG is 450 0C

Benefits of LPG

  • Re-fuelling time in vehicle is similar to petrol
  • Vehicle conversion is significantly economical than CNG
  • 20 kg LPG gives around 350 to 400 km run.

Why use LPG?

Unavailability of CNG and continuous increase in petrol & diesel prices invoke the need of cheaper alternative fuel.



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