Natural
gas is mainly methane which burns to produce heat. The
calorific value by mass (per kg) of natural gas is better than most of the conventional
fuels being used, such as petrol, diesel, LPG, kerosene, etc.
However, in gaseous form natural gas has a very low energy density, which makes
it difficult to store or transport. So it is either stored in compressed (CNG)
form, which leads to a volume reduction of around 200 times, or in liquid form
(LNG) at about -162oC, which gives about 600 times volume reduction.
Natural gas is transported to the consumer points either through gas pipeline
networks, or in LNG form though specially designed ships and cryogenic road
tankers. However, setting up of a LNG production plant is a very costly
proposition. As a thumb rule, gas transport over land up to 4000 kms, and
undersea up to 2000 kms is considered economical through pipelines, and beyond
these distances shipment of LNG is a better option.
Thought leadership in the the fields of energy technology with specific focus on Indian Railways. The author, R. P. Misra (a.k.a. RPM), is a mechanical engineer from IIT Kanpur with over 35 years of experience in production, technical, and multiple leadership assignments. RPM is currently heading Indian Railway Organization for Alternate Fuel (IROAF), an organization with the mandate to spearhead research, development and capacity creation in the field of alternate fuel.
Sunday, August 26, 2012
Ethanol can be blended with diesel
Those who are interested in alternate fuel related news will be excited to learn that Ethanol has been successfully blended with diesel in Karnataka. And this is being done since 2006.
Ofcourse an additive is needed to help matters. It is called Solubliser.
Ofcourse an additive is needed to help matters. It is called Solubliser.
LNG - the fuel of future.
Liquefied
Natural Gas (LNG) is the fuel of the future. Natural gas is a fossil fuel, like
petroleum and coal, the major sources of
energy of the world today. Coal, petroleum and gas contribute almost equally to
more than 90% energy needs of the world. Coal being a big pollutant of
environment, has always been a less preferred choice of energy. Petroleum
reserves of the world are expected to last for about next 40-45 years. On the other hand,
natural gas is a cleaner and cheaper fuel, having much more proven reserves
than petroleum, and is known to last much
longer.
With the extraction of shale gas getting more
economical with the advent of new technology, the future of this fuel is very rosy.
The present reserves of natural gas are of more than 100 years and are expected
to further increase with new finds. Thus, world-wide efforts are on to
substitute petroleum and other fuels with gas based applications and in the
time to come the major consumption of diesel/petrol of today will get
substituted by gas.
Subscribe to:
Posts (Atom)