Bioenergy and waste

Question 1

What is the higher heating value?

Answer 1

Heat released by burning fuel at 25 degrees and returning combustion products to 25 deg

Includes the latent heat vaporisation of water

Question 2

What is the lower heating value?

Answer 2

Heat released by burning fuel at 25 deg and returning the combustion products to 150 deg

Question 3

What is the specific heat capacity?

Answer 3

The energy required to raise one kilogram (kg) of the material by one degree Celsius (°C).

Question 4

CO2 evalue of co2

Answer 4

1

Question 5

____________ is where residual waste burns at 850 deg

Answer 5

Combustion

Question 6

__________ ___________ uses microorganisms to convert organic waste into a methane-rich biogas (or landfill gas) that can be combusted to generate electricity and heat or converted to biomethane

Answer 6

Anaerobic digestion

Question 7

__________ ___ _________ is where fuel is heated with little or no oxygen to produce “syngas” which can be used to generate energy or as feedstock for producing methane

Answer 7

Gasification and pyrolysis