What should I do to connect the peltier and heatsink with 12 volt battery. Will it really work , I am confused for confirmation

 

What should I do to connect the peltier and heatsink with 12 volt battery.

Can't help you if I don't know what Peltier, heatsink, and 12V battery (?).

 

if you are curious and serious about it you will gather the parts, connect them and see for yourself.

 

What do you mean by "air to water generation"? That implies that you are somehow taking air and generating water from it? If you cool air below its dew point, water will condense. Is that what you are trying to do? For what purpose? Are you trying to produce water, or are you trying to dry the air, or what?

Mentioning three things and then asking if they will do (some vaguely worded task) by connecting them is like me asking you whether connecting a motor, a wheel, and a gearbox will let me do gasoline to travel generation. Pretty meaningless, huh?

You need to provide a LOT more detail about what you are trying to do and how you are trying to do it.

 

How does a TEC (thermoelectric cooler) work?
If it is specified to work on 12VDC, connect 12VDC to the TEC for no more than 5 seconds.
One side should get cold and the other side will be hot.
Longer than 5 seconds and you risk burning out the TEC.

 

What should I do to connect the peltier and heatsink with 12 volt battery. Will it really work , I am confused for confirmation

That depends on what you mean by "work".

If you mean collect potable (drinkable) water in any useful quantity—then no. If you mean condense some water droplets onto the cold surface—then maybe.

 

Only, and only if the Peltier device can bring the temperature to the dew point.
Google the term.
Since Peltier devices can only cool to about 12•C below the actual ambient temperature, the relative humidity would have to be very high for the dew point to be that close to the ambient temperature.

 

Conditions where I am right now:

temp: 78F
rel hum: 82%
dew pt: 72

So in moderate humidity and temp the difference in temp to dew point is only 6F or 3.3C.

 

82% Relative humidity generally qualifies as "very high". "High humidity" is generally taken to be anything above 60% (though I'm not aware of any official demarcations), as that's the level at which indoor mold growth starts becoming a significant health risk. Admittedly, when I was stationed at Tyndall, that would have been on the distinctly low side for much of the year.

Where I'm at right now, the temperature is 87°F and the relative humidity is on the high side (for around here) at 26%, yielding a dew point of 48°F (a spread of nearly 22°C).

 

The biggest problem with TEC projects is rejecting heat from the hot side. Failing to do this effectively can cause the hot side to reach temperatures that damage the TEC. Even if you avoid a damaging temperature, the TEC can only produce a ∆T across itself and that means that the temperature on the hot side limits how low the cool side can reach, ie. it's the temp of the hot side minus ∆T.

Getting the cool side below the dew point where water will condense will only be possible in humid air where the temperature difference between the dry bulb and the wet bulb is less than the ∆T achievable by the TEC. In fact I'd guess that you probably need at least 5° more on the ∆T spec than the ambient DryBulb - WetBulb, to make up for various inefficiencies including the heat sinks.

 

Now the temp is 88, dew point still 72, relative humidity 60%. 16F or 8.9C. Still well within the 12C stated as the max. This is pretty normal temp and humidity.

I don’t expect he is trying to get water out of the air in the desert.

 

We have no basis to expect anything about what he is trying to do. He posted a very vague starting post and hasn't been seen since, let alone answered any of the several questions that have been asked trying to get at just what he is trying to do.

 

...dew point still 72... This is pretty normal temp and humidity.

Maybe for hell or Ann Arbor, Michigan.
It's actually a 72°F DP here where I live at the moment but it's about as awful as it gets. Not "normal", thank goodness.
I suspect you could build a dew collecting device that would operate here.

It occurs to me that this is homework and therefore the OP's goal may be to merely diagram the schematic, not actually build a working device.

 

Dew point alone says nothing, what is the temperature. I have lived in places with miserable humidity. This is not.

 

My dad was a chemical engineer and did his PhD work in Ann Arbor which is down wind of Lake Michigan and gets horribly sticky in the summer. A professor was explaining how a sufficiently high DP could cause water to condense out of the air onto your skin, leading to your imminent death. "Fortunately, that only occurs in two places, Hell and Ann Arbor."