₦airaland Forum

Chem 101.

Effect of Glycol on pure(distilled)

Elevation of boiling point & depression of freezing point i.e. With 50%glycol(70% max for Alaska region Grin) your radiator fluid will freeze below 0c evaporate above 100c.

So in very cold temp it will act as antifreeze and at hot temp act as coolant, so you just increased the effective range of your fluid.

Thanks for the nice research.
Remember we took that course together ! This is similar to the effects of impurities on boiling and freezing points of water. Here the "impurity" is glycol.
While you excused yourself to blow your nose outside, the Professor explained the elevation and depression phenomena thus:
Depression: pure water will freeze @ 0 Celsius. But an about 50% glycol water mix will still be liquid till about - 40 C.

Elevation: pure water evaporates at 100C, but a 50% water/glycol mix will not evaporate at 100C. The mixture will still be liquid at temp greater than 100c, may be 120C or more. He did not say . Yes, you increase the working range of your coolant.

The good old Professor DID not say that the coolant mixture will act as a coolant at hot temp. The cooling effect is strictly a function of the Specific heat capacity of the fluid. For water it is 4.184KJ/KgK , and for glycol 2.38KJ/KgK. The effective heat capacity of the water/glycol mix becomes lower than that of pure water. That is why you have to increase the amount of water/glycol mix to achieve same cooling effect as that of pure water

The water/glycol are only transferring heat from your engine to the heat exchanger unit (the radiator and fan), where the heat is given off to the surroundings, and the mixture flows back to the engine to pick up more heat. The cycle continues. FINITO ;

Chem 101.

Effect of Glycol on pure(distilled)

Elevation of boiling point & depression of freezing point i.e. With 50%glycol(70% max for Alaska region Grin) your radiator fluid will freeze below 0c evaporate above 100c.

So in very cold temp it will act as antifreeze and at hot temp act as coolant, so you just increased the effective range of your fluid.

Thanks for the nice research.
Remember we took that course together ! This is similar to the effects of impurities on boiling and freezing points of water. Here the "impurity" is glycol.
While you excused yourself to blow your nose outside, the Professor explained the elevation and depression phenomena thus:
Depression: pure water will freeze @ 0 Celsius. But an about 50% glycol water mix will still be liquid till about - 40 C.

Elevation: pure water evaporates at 100C, but a 50% water/glycol mix will not evaporate at 100C. The mixture will still be liquid at temp greater than 100c, may be 120C or more. He did not say . Yes, you increase the working range of your coolant.

The good old Professor DID not say that the coolant mixture will act as a coolant at hot temp. The cooling effect is strictly a function of the Specific heat capacity of the fluid. For water it is 4.184KJ/KgK , and for glycol 2.38KJ/KgK. The effective heat capacity of the water/glycol mix becomes lower than that of pure water. That is why you have to increase the amount of water/glycol mix to achieve same cooling effect as that of pure water

The water/glycol are only transferring heat from your engine to the heat exchanger unit (the radiator and fan), where the heat is given off to the surroundings, and the mixture flows back to the engine to pick up more heat. The cycle continues. FINITO ;

Chem 101.

Effect of Glycol on pure(distilled)

Elevation of boiling point & depression of freezing point i.e. With 50%glycol(70% max for Alaska region Grin) your radiator fluid will freeze below 0c evaporate above 100c.

So in very cold temp it will act as antifreeze and at hot temp act as coolant, so you just increased the effective range of your fluid.

Thanks for the nice research.
Remember we took that course together ! This is similar to the effects of impurities on boiling and freezing points of water. Here the "impurity" is glycol.
While you excused yourself to blow your nose outside, the Professor explained the elevation and depression phenomena thus:
Depression: pure water will freeze @ 0 Celsius. But an about 50% glycol water mix will still be liquid till about - 40 C.

Elevation: pure water evaporates at 100C, but a 50% water/glycol mix will not evaporate at 100C. The mixture will still be liquid at temp greater than 100c, may be 120C or more. He did not say . Yes, you increase the working range of your coolant.

The good old Professor DID not say that the coolant mixture will act as a coolant at hot temp. The cooling effect is strictly a function of the Specific heat capacity of the fluid. For water it is 4.184KJ/KgK , and for glycol 2.38KJ/KgK. The effective heat capacity of the water/glycol mix becomes lower than that of pure water. That is why you have to increase the amount of water/glycol mix to achieve same cooling effect as that of pure water

The water/glycol are only transferring heat from your engine to the heat exchanger unit (the radiator and fan), where the heat is given off to the surroundings, and the mixture flows back to the engine to pick up more heat. The cycle continues. FINITO ;

Chem 101.

Effect of Glycol on pure(distilled)

Elevation of boiling point & depression of freezing point i.e. With 50%glycol(70% max for Alaska region Grin) your radiator fluid will freeze below 0c evaporate above 100c.

So in very cold temp it will act as antifreeze and at hot temp act as coolant, so you just increased the effective range of your fluid.

Thanks for the nice research.
Remember we took that course together ! This is similar to the effects of impurities on boiling and freezing points of water. Here the "impurity" is glycol.
While you excused yourself to blow your nose outside, the Professor explained the elevation and depression phenomena thus:
Depression: pure water will freeze @ 0 Celsius. But an about 50% glycol water mix will still be liquid till about - 40 C.

Elevation: pure water evaporates at 100C, but a 50% water/glycol mix will not evaporate at 100C. The mixture will still be liquid at temp greater than 100c, may be 120C or more. He did not say . Yes, you increase the working range of your coolant.

The good old Professor DID not say that the coolant mixture will act as a coolant at hot temp. The cooling effect is strictly a function of the Specific heat capacity of the fluid. For water it is 4.184KJ/KgK , and for glycol 2.38KJ/KgK. The effective heat capacity of the water/glycol mix becomes lower than that of pure water. That is why you have to increase the amount of water/glycol mix to achieve same cooling effect as that of pure water

The water/glycol are only transferring heat from your engine to the heat exchanger unit (the radiator and fan), where the heat is given off to the surroundings, and the mixture flows back to the engine to pick up more heat. The cycle continues. FINITO ;

@ chelseabmw.
i guess you sincerely don't know and adamantly don't wanna know

@Chelseabmw
There is no reason to be abusive. We should be working towards the same goal here i.e spreading knowledge. "I like to learn , but I hate to be taught nonesence" The more you talk the more you expose some,  .
Is the radiator in your BMW different from the radiator in that same BMW in Cairo, Johannesburg, Jerusalem abi Jericho? No sir.
Are those "coolants" made in naija?? No sir.

the first day i used it on my bmw i remember how i sufferred.

Why did you then continue using it several times?

what are those chemicals? you should read the instructions on the container b4 you use it. If we are still talking about ANTIFREEZE, it is not for over heating sir.

nigeria will always be nigeria

for people like you who don't wanna learn from mistakes( sorry if am talking hard now )

@Chelseabmw

Abeg,we are not talking about bringing fact from the internet.We are talking about reality.What i highlighted above is true and real.so take it or leave it

I am happy you said "bringing fact", "reality". I hope you understand what "fact" means. "Fact" and "reality" go together. This forum will be a better place if you spent only 1% of the time you use in posting BUMP on each and every posting, to search the internet or any other source of information and come up with useful and educative facts.

Saying radiator coolant is very bad.it doesn't do anything, only portrays ignorance. You should appreciate that someone has the time to bring "fact from the internet" to educate you. Ones more sir: Antifreeze is not used for preventing overheating

Haba ! You cannot use paracetamol to treat diarrhoea

@Paul Edoze: Dats the beauty of this forum :More of a classroom than a market place

Some Clarifications:

Coolant  is any fluid whose purpose is to transfer heat away from the engine.

-Water is a coolant on its own. I guess you mean ANTIFREEZE. Antifreeze does not prevent  overheating.

The purpose for adding ethylene-glycol antifreeze, like Kunle rightly said is to prevent corrosion, and also to lower freezing point of water to as low as -55 degrees Celsius during cold weather(winter). Cold weather is not an issue in Naija.

Using antifreeze in Naija should be to prevent corrosion. Always use ethylene-glycol based antifreeze cos its suitable for multi metal cooling systems.
Most people in Naija do not pour antifreeze into their radiators, that is why the water is always brown. This is a sign of internal corrosion.
Check most tokunbo cars, the coolant from the radiator is light blue, no brown colour.

Note:
The heat transfer capacity of a coolant mixture of water and ethylene glycol is less than that of pure water. Adding antifreeze to your cooling system implies less heat will be removed from your engine. Your engine will be hotter (hence the temperature rise you observed). To prevent this temp rise, you have to increase the volume of coolant fluid by about 16%.


@poster: I hope you did not fill your radiator with antifreeze only 
A 10:1 volume ratio of water and antifreeze should be okay for corrosion prevention

Cheers

radiator coolant is very bad.it doesn't do anything

Can you tender documented evidence to back this claim

Antifreeze is not meant to stop overheating sir. Go read about it, then you come back to the forum and correct your claim

@ poster!I guess you mean antifreeze mixture:

Coolant = water + antifreeze

Antifreeze mixture has to Functions:

1. Addition of right amount  to your radiator  can  lower  the freezing point (temperature) of the water to as low as -50 degrees Celsius. So the water does not freeze in winter. However this does not apply to Naija where freezing is not an issue.

2. Like Kunle rightly said, it prevents internal corrosion. ( most people in Naija do not use  antifreeze that is why the water from the radiator is often brown. This is as a result of corrosion)
Antifreeze are often red or blue. You should use the colour specified for your car. Always use an ethylene-glycol based antifreeze suitable for mixed metal cooling systems

Hope you did not just pour in antifreeze in your radiator  .

Having antifreeze in your radiator will do you a lot of good.

Cheers

still waiting to here from you. It is important you reply to information you requested for on email. A simple INTERESTED or NOT INTERESTED is just ok.

Not been used in naija

@mistakay!

hey bros no bad feelings!
I love the statement/ quote on its own merit, not in relation to the subject matter. ok.

Cheers and good luck

@Kunle,
[size=16pt]Remember, you can lie about numbers but numbers themselves don't lie. They are as objective as they come[/size]

I love this statement. More pls.

The fan takes some time to start and think its automated to be like this. I might be wrong.

Please any recommendation where I can do a scan.

You have to give the house precise and detailed answers to get help. Did your engine run smooth? Do you have enough oil in it?

The fan will start only when the engine is warm enough. Before going for a scan why not check the above tips on your own , or get a mechanic to check for you.

Good luck.

You have to open the bonnet and inspect listen to the engine's sound:
- Does it start and run smoothly after the radiator change?
- Is the cooling fan blowing.
- check for leakages along the water cooling systems
- check the water pump
If all these are ok. Then you may need a scan to find the exact cause.

Good luck

Hello yanmata,

I have sent details to your mail box.

Best regards

Jucol

@osculate.
I can get you what you want. You have to drop your contact details for faster communication. You can send as sms or call, or better still I call you to get your exact specifications.

The price is there! I have contact info there too. If you are seriously interested you will call those numbers to inquire. Or you drop your contact info for us to contact you.

THANKS.

still available

Thank you George_D, and all who showed interest! Many thanks to Seun and his team for this forum. I am sure Nairaland land has come to stay.

This Genset has been SOLD. No further inquires on purchase.

However I will be open to general questions on Generators and engines.

Cheers to all !

i bought a toyota camry 1998 model last year july. recently the car started shorting oil and emmiting smoke abnormally. now mechanics are saying that it has serious engine fault. what do i do? pls i need help.

You were not duped. You married a beautiful girl in July last year. All has been rosy and well thereafter. Do you go complaining to her parents when she develops diarrhea a year later?

Take your car to the workshop and get it fixed before it quenches completely. Engines do fail irrespective of mileage.

You may apologize to the seller if you have directly called him/her a dupe.


Good luck!

This forum has very interesting topics coming up every now and then

Changing from 195/65 to 205/65 is 10mm(1cm) increment in width of your tyres . Take a ruler and see how large a 1cm increment is. You will then advice yourself.

You will bump on obstacles(stones, pot holes etc) that are 205mm apart with your 205/65, while a 195/65 will not.
A 195/65 will bump into pot holes that are wider than 195mm, while a 205mm may not ( assuming the hole is less than 205mm and the surface flat: which may not be possible in Lagos).

Your car only looks kool on 205/65. The potholes are just there, You can't avoid them

Drive carefully!

ikeyman00 (m)
uk
Posts: 4975




Re: **can Nigerians Really Say No To Accident Vehicles?***
« #6 on: Today at 10:22:51 PM »

@@@@@

and a car that got its side mirror or bumped dent is still a case of concern abi

well emmm yea

Definitely not a security concern. If the dent did not go beyond what you mentioned. But a dent is an accident. You have to quantitatively look at the extent of the accident.

Yes I will. And it MUST be diesel 10KVA. No toys

Posted by: George_D
Insert Quote
jucol,
why go through all this stress when you can get a direct use dry exhaust gen for lesser amount?

The gen was advertised as marine. If you like it cos it is cute and you want to dry stack it for home use, then you go through "this stress". It is an issue of choice. People convert from LH to RH drive and vice versa. Thats the free world.

Cheers

@Onwan:

this is the link
https://www.nairaland.com/nigeria/topic-417431.0.html#msg5743104

Did you check the 25KVA mobile military gen? You have to listen to that guy rattle.

Total run hour:about 571 hours. You cannot find a better used gen than this in the market. The wheel base has been dismantled.
Look beyond the surface cosmetics

Yes George man!

There is nothing as good as a leadership that listens to the people. Thanks to u all.