no data, but SMRTB's O405 was quoted by newspaper many years ago
to go about 2km per litre of diesel on average. for svc 171, with a
one-directional distance of about 32.8km, it will cost about $17,
without considering other costs like manpower etc. imagine how many
pax u need to generate revenue!
but fuel consumption depends on many other conditions/factors
beyond just bus types.
let's say the B10BLE-CNG buses running in singapore. they consume
more fuel per unit of distance as:
- it runs on the Otto engine heat cycle, which has a max. thermal
efficiency of 37% compared with a Diesel engine heat cycle with 45%
efficiency
- the tank on top, though made from an aluminium-carbon fibre
composite to reduce mass and weight, weighs about 700kg
- compared to a volumetric gallon of diesel fuel, there is less
energy in an energy gallon equivalent of natural gas
so u see.
