chemical energy
In a barbecue, the primary forms of energy observed are thermal energy (heat) from burning charcoal or gas, radiant energy as heat is transferred from the grill to the food, and chemical energy as food cooks and releases energy stored in its molecules.
A barbecue transfers energy mainly through thermal radiation. The heat generated by the burning fuel (charcoal or gas) causes the grill grates to heat up, which then radiates heat energy to cook the food placed on top of them.
Propane gas is recommended for use in a barbecue grill.
A Barbecue takes either butane or propane.
Butane
Propane
conduction and convection..
There are many place that we can get gas barbecue grills. Just go to this website (http://www.barbecuegrillsandmore.com/) to check more information about gas BBQ grill.
A barbecue transfers energy in two main ways: through direct contact (such as the flames or hot coals directly heating the food) and through radiation (where the heat energy from the barbecue is transferred to the food through infrared radiation).
Propane which is C3H8
Butane
Carbon monoxide.