Spencer
from your last post
"The first thing to understand is you can not use WMO neat"
yes i can, i can burn any motor oil up to 15/40 in my changfa at 100%, no solvent
and no preheating of the fuel, i do have to start on diesel and warm up for a couple minutes though.
"Engine oils are not like veg oils which can have there viscosity reduce by heat"
that too is false, cold oil is very thick, get it hot and it will become much less so.
"Lubricating oils are design to resist heat and there viscosity is design to be stable so you can not reduce there viscosity to suitable levels with heat alone."
yes i could, but i don't need to heat the oil for use in the changfa
"So you must cut it with a solvent to make it suitable for the injector to spray."
no i do not have to reduce with solvent, although i might prefer to do so with pump diesel it is not necessary in the idi changfa.
"This is your first COST buying a solvent"
very true, no argument from me on this point, however the cost of the solvent/diesel
used to thin will also reduce the amount of ash and abrasives, which will have a positive effect on engine life, so that additional cost might be acceptable or even desirable.
"The next cost is the replacement rings, bore, piston and gaskets
365 days a year and 8 hours a day of running the generator means you need to get 2920 hours per year from our generator."
this is another area where we part ways, i cannot understand the need for operation of an engine/generator for that many hours per day across the whole year, i could make a very compelling argument for an average of 2 hours per day with a hybrid system that would compete well with grid power. for a total run time of less than 800hr/year
the cost of a changfa cylinder kit, big end brg, gskts for a 195 is less than 150 bucks retail, and less than 100 bucks if bought direct in quantity.
"You will need every year to replace 2 sets of rings 1 piston and a bore."
see above, under my suggested operational parameters, the replacement would be
closer to every 3.5 years and only if the changfa wears out as fast as the listeroid. we
have evidence to the contrary so the meantime before overhaul might well be 5 years or as many as 10 or more years operated accordingly.
"6 hp generator will run a modest house, so unless you can't get grid power the economics don't make sense to generate your own power."
this is true if all you are doing is generating electrical power, and your grid rates are reasonable, however this is not the case with cogen in cooler climates that have high grid power rates.
actually under the certain operating parameters one could generate electricity very competitively with the grid rates in cogen mode even if the rates are quite low, so long as there is a need and use for the recovered heat, but
the basic problem you have is the 6hp engine for a modest house, it would generally have to run long hours to cover the load requirements, and is not large enough to do both cover the loads and be able to recharge a battery bank at the same time.
it takes about 12hp to do both for a modest home in moderate climates for the majority of the year and do so efficiently averaging 2 hours per day run time.
here again the changfa has an advantage over the listeroid, the changfa can produce 10kw/hr/gallon (US) where the 6/1 will do well to do 8kw/hr/gallon (US)
we are now gettin into the weeds and likely would need to start another topic to explore this fully.
bob g