Question

Compare LPG and wood as fuels.

Answer 1

LPG	Wood
It has a higher calorific value of about 55000kJ/kg.	It has a lesser calorific value of about 17000 to 22000 kJ/kg.
It releases low amount of gaseous emissions on burning and doesn't cause any serious environmental problems.	On burning, wood releases unburnt carbon particles and large amount of harmful gases which can cause various environmental problems as well as respiratory diseases.
It is easy to store and can be easily transported using cylinders and pipelines.	It needs a lot of space for storage and transportation.
Ignition temperature is low.	Ignition temperature is high.