Oil and water
#21
Guest
Posts: n/a
Re: Oil and water
"R@L" <reply@usenet.com> wrote in message
news:7ebef$44ce4a87$57d403fc$20513@news.versatel.n et...
>
> "Peter Bell" <peter@invalid.org.uk> wrote in message
> news:d5822c4f4e.peter@iyonix.earley.fourcom.com...
>> In message <pLadnVMD7biBp1PZnZ2dnUVZ8s2dnZ2d@bt.com>
>> "Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
>>
>>>
>>> "Peter Bell" <peter@invalid.org.uk> wrote in message
>>> news:3519f44e4e.peter@iyonix.earley.fourcom.com...
>>> > Some oil does go to the head, to lubricate the valve gear and some
>>> > is sprayed onto the cylinder walls but not, necessarily, close to
>>> > the heat sources, and not in vast quantities.
>>>
>>> hmmmm, oil splashed up the bores must touch the underside of the
>>> pistons.
>>> These being aluminium the oil must be close to combustion chamber temps.
>>
>> Yes, but only relatively small quantities of the oil.
>>
>> --
>> Peter Bell - peter@bellfamily.org.uk
>
>
> Also the oil is not cooled down as well as the water.
> It's not necessary since the oil works fine in much higher temperatures.
> In my Audi the oil is cooled (and preheated for that matter) close to the
> oil filter.
> At certain speeds (revs) the oil and water are both 90 degrees Celsius.
>
> Ronald
>
yes when it's 30C ambient both of mine are 90C
#22
Guest
Posts: n/a
Re: Oil and water
On 2006-07-31, Peter Bell <peter@invalid.org.uk> wrote:
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
Also, oil and water have quite different Specific Heat Capacity values.
SHC is the amount of energy in joules, required to raise one gram of the
substance by one degree kelvin.
Liquid water is 4.186 joules, I expect engine oil is higher.
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
Also, oil and water have quite different Specific Heat Capacity values.
SHC is the amount of energy in joules, required to raise one gram of the
substance by one degree kelvin.
Liquid water is 4.186 joules, I expect engine oil is higher.
#23
Guest
Posts: n/a
Re: Oil and water
On 2006-07-31, Peter Bell <peter@invalid.org.uk> wrote:
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
Also, oil and water have quite different Specific Heat Capacity values.
SHC is the amount of energy in joules, required to raise one gram of the
substance by one degree kelvin.
Liquid water is 4.186 joules, I expect engine oil is higher.
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
Also, oil and water have quite different Specific Heat Capacity values.
SHC is the amount of energy in joules, required to raise one gram of the
substance by one degree kelvin.
Liquid water is 4.186 joules, I expect engine oil is higher.
#24
Guest
Posts: n/a
Re: Oil and water
On 2006-07-31, Peter Bell <peter@invalid.org.uk> wrote:
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
Also, oil and water have quite different Specific Heat Capacity values.
SHC is the amount of energy in joules, required to raise one gram of the
substance by one degree kelvin.
Liquid water is 4.186 joules, I expect engine oil is higher.
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
Also, oil and water have quite different Specific Heat Capacity values.
SHC is the amount of energy in joules, required to raise one gram of the
substance by one degree kelvin.
Liquid water is 4.186 joules, I expect engine oil is higher.
#25
Guest
Posts: n/a
Re: Oil and water
On 2006-07-31, Peter Bell <peter@invalid.org.uk> wrote:
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
Also, oil and water have quite different Specific Heat Capacity values.
SHC is the amount of energy in joules, required to raise one gram of the
substance by one degree kelvin.
Liquid water is 4.186 joules, I expect engine oil is higher.
>> oil temp on cool day (15/20c) = 80C
>> while water = 90C
>
> The water is there for the specific purpose of removing excess heat from
> the engine. For this reason it passes as close as possible to the
> sources of the greatest heat - around the combustion chambers, the
> cylinder head and cylinder bores. The oil has the primary purpose of
> lubricating the moving parts of the engine - in particular, the
> crankshaft bearings. Some oil does go to the head, to lubricate the
> valve gear and some is sprayed onto the cylinder walls but not,
> necessarily, close to the heat sources, and not in vast quantities.
Also, oil and water have quite different Specific Heat Capacity values.
SHC is the amount of energy in joules, required to raise one gram of the
substance by one degree kelvin.
Liquid water is 4.186 joules, I expect engine oil is higher.
#26
Guest
Posts: n/a
Re: Oil and water
"Av" <spam-newsgroups@silverwraith.com> wrote in message
news:slrnect5th.1p18.spam-newsgroups@gooseberry.silverwraith.com...
> On 2006-07-31, Peter Bell <peter@invalid.org.uk> wrote:
>>> oil temp on cool day (15/20c) = 80C
>>> while water = 90C
>>
>> The water is there for the specific purpose of removing excess heat from
>> the engine. For this reason it passes as close as possible to the
>> sources of the greatest heat - around the combustion chambers, the
>> cylinder head and cylinder bores. The oil has the primary purpose of
>> lubricating the moving parts of the engine - in particular, the
>> crankshaft bearings. Some oil does go to the head, to lubricate the
>> valve gear and some is sprayed onto the cylinder walls but not,
>> necessarily, close to the heat sources, and not in vast quantities.
>
> Also, oil and water have quite different Specific Heat Capacity values.
> SHC is the amount of energy in joules, required to raise one gram of the
> substance by one degree kelvin.
>
> Liquid water is 4.186 joules, I expect engine oil is higher.
liquid water..........is there any other.
#27
Guest
Posts: n/a
Re: Oil and water
"Av" <spam-newsgroups@silverwraith.com> wrote in message
news:slrnect5th.1p18.spam-newsgroups@gooseberry.silverwraith.com...
> On 2006-07-31, Peter Bell <peter@invalid.org.uk> wrote:
>>> oil temp on cool day (15/20c) = 80C
>>> while water = 90C
>>
>> The water is there for the specific purpose of removing excess heat from
>> the engine. For this reason it passes as close as possible to the
>> sources of the greatest heat - around the combustion chambers, the
>> cylinder head and cylinder bores. The oil has the primary purpose of
>> lubricating the moving parts of the engine - in particular, the
>> crankshaft bearings. Some oil does go to the head, to lubricate the
>> valve gear and some is sprayed onto the cylinder walls but not,
>> necessarily, close to the heat sources, and not in vast quantities.
>
> Also, oil and water have quite different Specific Heat Capacity values.
> SHC is the amount of energy in joules, required to raise one gram of the
> substance by one degree kelvin.
>
> Liquid water is 4.186 joules, I expect engine oil is higher.
liquid water..........is there any other.
#28
Guest
Posts: n/a
Re: Oil and water
"Av" <spam-newsgroups@silverwraith.com> wrote in message
news:slrnect5th.1p18.spam-newsgroups@gooseberry.silverwraith.com...
> On 2006-07-31, Peter Bell <peter@invalid.org.uk> wrote:
>>> oil temp on cool day (15/20c) = 80C
>>> while water = 90C
>>
>> The water is there for the specific purpose of removing excess heat from
>> the engine. For this reason it passes as close as possible to the
>> sources of the greatest heat - around the combustion chambers, the
>> cylinder head and cylinder bores. The oil has the primary purpose of
>> lubricating the moving parts of the engine - in particular, the
>> crankshaft bearings. Some oil does go to the head, to lubricate the
>> valve gear and some is sprayed onto the cylinder walls but not,
>> necessarily, close to the heat sources, and not in vast quantities.
>
> Also, oil and water have quite different Specific Heat Capacity values.
> SHC is the amount of energy in joules, required to raise one gram of the
> substance by one degree kelvin.
>
> Liquid water is 4.186 joules, I expect engine oil is higher.
liquid water..........is there any other.
#29
Guest
Posts: n/a
Re: Oil and water
"Av" <spam-newsgroups@silverwraith.com> wrote in message
news:slrnect5th.1p18.spam-newsgroups@gooseberry.silverwraith.com...
> On 2006-07-31, Peter Bell <peter@invalid.org.uk> wrote:
>>> oil temp on cool day (15/20c) = 80C
>>> while water = 90C
>>
>> The water is there for the specific purpose of removing excess heat from
>> the engine. For this reason it passes as close as possible to the
>> sources of the greatest heat - around the combustion chambers, the
>> cylinder head and cylinder bores. The oil has the primary purpose of
>> lubricating the moving parts of the engine - in particular, the
>> crankshaft bearings. Some oil does go to the head, to lubricate the
>> valve gear and some is sprayed onto the cylinder walls but not,
>> necessarily, close to the heat sources, and not in vast quantities.
>
> Also, oil and water have quite different Specific Heat Capacity values.
> SHC is the amount of energy in joules, required to raise one gram of the
> substance by one degree kelvin.
>
> Liquid water is 4.186 joules, I expect engine oil is higher.
liquid water..........is there any other.
#30
Guest
Posts: n/a
Re: Oil and water
In message <fJadnUXwd7VBRVPZRVnytA@bt.com>
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
> liquid water..........is there any other.
Ice & steam?
--
Peter Bell - peter@bellfamily.org.uk
"Lez Pawl" <Lez@Pawlbtinternet.com> wrote:
> liquid water..........is there any other.
Ice & steam?
--
Peter Bell - peter@bellfamily.org.uk