Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.
The proposed work reports a combustion model for a dual fuel
CI engine for Diesel cycle and Dual cycle. The work then
analytically examines the performance of a CI engine with the
minimum use of diesel as primary fuel, with producer gas as
secondary fuel. The performance has been analysed for work
output and thermal efficiency. The combustion model has been
developed for ideal diesel engine, diesel-producer gas engine
with diesel as primary fuel. The combustion models have been
simulated using MATLAB® codes. The specifications of a
standard CI engine have been used for numerical calculations.
The equation of state in each process in the cycles has been
critically analysed based on laws of thermodynamics. The
performance analysis shows that, in a diesel-producer gas
engine, thermal efficiency increases and work done decreases
as the percentage of diesel supplied during combustion process
decreases. Also, the addition of producer gas in a dual-fuel
(Diesel-Producer gas) engine allows the engine to run over a
lower range of maximum temperature of the cycle which
reduces the chances of Nox formation.