Page 180 - Energy from Toxic Organic Waste for Heat and Power Generation

160 Energy from Toxic Organic Waste for Heat and Power Generation

In this context, experimental investigation has been conducted in two
phases. In the first phase of the present work, production of fuel oil from
low-density polyethylene waste (LDPE) using thermal and catalytic pro-
cess has been investigated and biodiesel production from locally and abun-
dantly available Honge oil by well-established transesterification process.
Further, to explore the performance, combustion and emission character-
istics of the diesel engine modified to operate in dual fuel mode operated
on tri-fuel (HOME+FO-PG) combination have been investigated. Also,
the practical availability of blended fuels in diesel engines with experi-
mental methodology is discussed. In addition, the effect of combustion
chamber geometry is also investigated. The optimum parameter in terms
of injection timing and injection pressure has been reported in earlier
studies by the same authors [19, 20].

11.3 DEVELOPMENT OF REACTOR SHELL FOR LDPE

A reactor shell is a closed container, in which the waste LDPE burns at
high temperature. It is designed to hold gases at a pressure considerably
different when compared to ambient pressure. The various parts of the
shell are explained in the following subsequent paragraph. Fig. 11.1 shows
the reactor shell.
Reactor shell: The reactor is a component designed to have waste fuel
and fittings to support structures. It is in cylindrical shape and is closed at
the top. The fuel is loaded from opening provided on the top. Reactor shell
is made of forged mild steel having I.D. of 120 mm and thickness of 10 mm,
2
whose allowable pressure is 70 bar (71.38 kg/cm ). By this arrangement,
high pressure and high temperature cracking can be achieved.

t s e
45°

t s

D e
(b)
Fig. 11.1 Bottom plate enclosure.