Heater Heat
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An Introduction To Different Types Of Solar Water Heater Heat Exchangers
Solar water systems use different types of heat exchangers so that a transfer of solar energy to solar collectors is achieved and an air or liquid are used in order to heat water or space. One heat exchanger can be made out of copper, stainless steel, steel, aluminum, cast iron or bronze. We see copper being usually used because it is one good thermal conductor while also being highly resistant to corrosion. Let us analyze some common heat exchanger types that you might want to utilize.A plumber from a solar power company dealing with installation of solar inverter provided the useful info.
Basically 2 main types of exchangers exist: liquid to liquid or air to liquid. A liquid to liquid solar water heater heat exchanger will use heat-transfer fluid. Solar collectors will be circulated with it. After that heat is absorbed and taken with the help of heat exchangers so that it can reach water in storage tanks. Different heat transfer fluids can protect collectors from freezing during winter. Such a liquid to liquid heat exchanger system will use 1 or 2 barriers in order to be properly effective.
Any heat exchanger constructed through a system based on 1 wall will have a tube or a pipe that is always surrounded by fluid. A double wall exchanger will have 2 fluids and walls between them. In most cases a double wall solar water system will be required as the safety provided is higher.
The problem is that their efficiency is not as big when compared to single systems. Air heater collectors are included in air to liquid systems. Between the solar collectors and the air distribution systems there will be no need of using heat exchangers. Besides using air and not liquid these two heater systems are really similar.
Whenever you build a solar water heating heat exchange system there is a need to analyze sizing. If you want everything to be effective size is really important. Whenever thinking about this topic you need to consider the heat exchanger types, the heat transfer fluid characteristics, flow rates and temperatures for inlet and outlet for the fluids used. In most situations the manufacturer will offer you heat exchanger ratings to consult. Read every single line of the specifications offered so that the best decisions can be made.
How long will it take my heater to heat my room up?
I have an 800 watt heater in my room. I want to know how long it will take for it to heat my room up from 68 degrees farenheit, also what the maximum temperature that can be reached. Is there an equation that can help me figure this out? I dont have the area measurements of my room but when I get the equation I will measure it
Thanks in advance!
The heater is 120VAC 60Hz
A few comments:
"to heat my room up from 68 degrees farenheit" to what temperature? 79 F? 400 F?
"Is there an equation that can help me figure this out?": you need several equations .....
"I dont have the area measurements of my room..": you need the volume, but, worse, you need to know how well insulated your room is or, in other words, how fast heat leaks out of it and that depends, between other things, on how cold the "outside " is.
Your best bet is to turn the heater on and time how long it takes to reach whatever temperature.
It will change with the "outside" conditions. And it will very likely reach a "maximum temperature".
At that point, all the heat produced is carried "outside".
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