(LDO ) or (heavy Diesel) ?
(LDO ) or (heavy Diesel) ?
(OP)
hello,
I operate a 660kg/hr steam boiler(LDO fired)and also a hot oil generator(2lakh cal/hr) using the regular DIESEL from the gas station.
We plan to start using LDO, and for this. I'am trying to find out the calorific values of both the normal diesel and LDO. LDO happens to be cheaper, but is it feasible?
Any suggesions? Should we switch over to LDO or continue using the regular DIESEL???
Thankyou !
I operate a 660kg/hr steam boiler(LDO fired)and also a hot oil generator(2lakh cal/hr) using the regular DIESEL from the gas station.
We plan to start using LDO, and for this. I'am trying to find out the calorific values of both the normal diesel and LDO. LDO happens to be cheaper, but is it feasible?
Any suggesions? Should we switch over to LDO or continue using the regular DIESEL???
Thankyou !





RE: (LDO ) or (heavy Diesel) ?
Basically, for these two fuels you are going to fire a constant BTU load or that is how I would look at it.
RE: (LDO ) or (heavy Diesel) ?
Kero Class C1: 46.7 MJ/kg
Class C2 kero: 46.5 MJ/kg
Class D gas oil: 45.4 MJ/kg
Perry VI gives, in FIG. 9-4, the net and gross calorific values of liquid fuels as a function of their API gravity or specific gravity at 60/60F.
On a weight basis, the heating value of petroleum fuels decreases with increasing specific gravity (decreasing API gravity) since the weight ratio of carbon (low-heating value) to hydrogen (high-heating value) increases with the specific gravity at 60/60F.
On a volume basis, the increasing sp. gravity more than compensates for the decreasing heating value per unit mass, with the net results that fuels having high sp. gravity yield more heat energy per unit volume than those of low sp. gravity (!)
RE: (LDO ) or (heavy Diesel) ?
Coming to the technical issues, NCVs of HSD and LDO are 10500 and 10100kCal/kg respectively. Additional quantity of steam you can produce using HSD is nor morethan 1kg per kg of HSD. The prices at the moment are Rs.16/kg of LDO and Rs.26/kg of HSD. Technically there are no issues except problem with pollution control.
The norms of PCB are <110ppm of SPM, <80ppm of NO[sub]x[sub] and <80ppm of SO2 in the flue and your boiler manufacturer will not guarantee this if your burner is initially designed for HSD.
Frequency of cleaning combustion chamber and flue gas path will increase.
Regards,
RE: (LDO ) or (heavy Diesel) ?
:)
RE: (LDO ) or (heavy Diesel) ?
Best Regards