what this mean?

[mahmmoud30]

plaeas what this unit meaning (te/te diesel)?
its written beside the Emission factor in diesel engine emission calculation table.

 

[bimr]

Thermal efficiency is defined by the percentage of fuel that is actually devoted to powering the engine, rather than being lost in heat transfer, exhaust or other variables.

http://www.epi-eng.com/piston_engine_technology/thermal_efficiency.htm