Single fluid engines.
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Most air/oil cooled engines use an excessively rich mixture to cool the tops of the pistons/combustion chambers...
They do not circulate oil through cooling passages in the cylinder and head to cool the engine, they just use fins on the head and jug, and pass the crank case oil through a cooler to keep
They do not circulate oil through cooling passages in the cylinder and head to cool the engine, they just use fins on the head and jug, and pass the crank case oil through a cooler to keep
“also water has a specific heat capacity of 4200J/KG/K. i have no idea what oil is. anyone know?”
Water: 4.18 kJ/kg-K.
Engine Oil: 1.9 kJ/kg-K. (45% the specific heat of water)
“Water has a higher specific heat than anything. Meaning it has higher capacity to absorb and release heat per gram material.”
Not necessarily, water is up there but there are other liquids with a higher specific heat i.e. Ammonia with 4.84 kJ/kg-K. (water is 4.18)
“plain water works great! with a 15psi rad cap you can increase your boiling point, plus you shouldnt be running hot enough to boil it anyhow.”
“^^^ boiling point for water is about 100degrees and the ls1's operating temperature is 210. so i do not see how you will not boil the water.”
Boiling point of just water pressurized in a 15psi system boils at about 122C or 251F well below the 210 your thermostat opens at.
Enjoy!!!
Water: 4.18 kJ/kg-K.
Engine Oil: 1.9 kJ/kg-K. (45% the specific heat of water)
“Water has a higher specific heat than anything. Meaning it has higher capacity to absorb and release heat per gram material.”
Not necessarily, water is up there but there are other liquids with a higher specific heat i.e. Ammonia with 4.84 kJ/kg-K. (water is 4.18)
“plain water works great! with a 15psi rad cap you can increase your boiling point, plus you shouldnt be running hot enough to boil it anyhow.”
“^^^ boiling point for water is about 100degrees and the ls1's operating temperature is 210. so i do not see how you will not boil the water.”
Boiling point of just water pressurized in a 15psi system boils at about 122C or 251F well below the 210 your thermostat opens at.
Enjoy!!!
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Thanks s10 xtreme! 
I remeber someone doing some testing with solar energy. they would use mirros to heat a 'liquid' to well over 100 degrees C and then use that to heat water to drive a steam turbine. i think they used Ammonia or something. They needed a VERY high boiling point and high Specific heat capacity. any ideas what they might have used?
Cheers
Chris.
I remeber someone doing some testing with solar energy. they would use mirros to heat a 'liquid' to well over 100 degrees C and then use that to heat water to drive a steam turbine. i think they used Ammonia or something. They needed a VERY high boiling point and high Specific heat capacity. any ideas what they might have used?
Cheers
Chris.
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From: Sunny London, UK
Staging Lane
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From: BELLEVEGAS, IL
This may not be an advance engineering answer, but how about lack of relative air flow for a daily driver. Sitting in traffic, stop and go driving, etc. in the summer. Does this even make sense or am I over simplifying the situation?
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Chris.
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