How to cool a room?

[Dubb]

Install a Dutch door, invented to provide ventilation and keep the animals out.

better would be to just replace the existing door with a louvered door. He'll still have visual privacy that way, but obviously less acoustic privacy.

you probably want a door with both upper and lower louvers - cool air in the bottom, hot air out the top. can be assisted with a fan if necessary.

http://www.masonite.com/productpages_InteriorDoors.php?LouverDoors=1#

 

[Jeff7]

nephew - 2
niece - 4
Used to use the gates until they learned how to climb over them.

Window has an alarm sensor on it, so every time the window opens there's a loud beep and a voice says "bedroom window open". Even if I open it when he isn't there, if he arms the alarm it will say that the window is open. If I remove the battery, it will say that there is a problem with that sensor.

modifications to the room are probably not going to happen. Guess I'll be suffering the heat.

It's probably a reed sensor - nothing a simple magnet can't handle.


In short, without the ability to get air or water out of the room somehow, you're pretty much out of options for cooling. (A radiative cooler might work, but it'd be terribly inefficient. )

Use fluorescent lighting, turn off the ceiling fan, and throttle down the PC somehow. Not much else can be done from a thermodynamic standpoint. Diplomacy with your parents would be the only other option - if you could vent the warm air from your room into the rest of the house, that'd help out with the heating bills, though electric heat is often the most expensive option.

 

[FoBoT]

i found a patent from 1976 that might help

BACKGROUND OF THE INVENTION

The invention is concerned with a process for room cooling using the water radiators of a heating installation, especially for cooling work and for waiting rooms on extremely hot summer days.

In zones with moderate climate, there are only few days in the year with extremely high temperatures. It does not pay, therefore, as a rule to equip dwellings, work areas and waiting rooms with presently known cooling devices since such devices are very expensive.

SUMMARY OF THE INVENTION

An object of the invention is to make possible air conditioning on extremely hot summer days with small investment cost and affordable operating costs.

Now, a process for air conditioning using the water radiators of a heating installation has been found, by which, according to the invention, water flowing through the radiators is cooled by liquid nitrogen, or, after blowing off the water, cold gaseous nitrogen circulates through the radiators.

The cooling of the water can occur in two different ways, usually by direct or indirect heat exchange. In the case of direct heat exchange, the liquid nitrogen is injected in finely distributed form in the water circuit and subsequently drawn off again into a trap. The bore of the nozzles must hereby be so selected, depending on the amount of liquid nitrogen to be injected so that clogging due to ice formation is prevented. With indirect heat exchange, the water is cooled in a heat exchange, preferably a plate heat exchanger, by evaporating liquid nitrogen. An ice buildup on the plates can hereby be tolerated.

According to a variation of the invention, the water is not cooled but rather drained out of the heating system in that it is either removed entirely from the installation or stored in a container or tank. Cold gaseous nitrogen, obtained by evaporating liquid nitrogen circulates in the radiators and is conducted into the atmosphere.

The invention assumes that the rooms to be cooled are hooked up to a central heating system, which as a rule, is the case. The additional investments are small compared to the cost of the heating system. Either a device for injecting the liquid nitrogen with a gas trap coupled to it must be built into the water circuit or else a heat exchanger which is acted upon by the water circuit and by the liquid nitrogen. In the case of direct cooling with gaseous nitrogen, practically no additional components at all need to be built in.

In any case, a simple regulating arrangement for the water temperature or the supply of nitrogen must be provided. The liquid nitrogen can be supplied in insulated rental containers.

With the invention's practice the circulating water can be cooled to any temperature below room temperature at the maximum (cooling) down to a small amount above the freezing point. By using liquid circulating media other than water, even lower temperatures can be achieved. However, the simplicity of the invention's process is lost here.

THE DRAWINGS

FIG. 1 schematically shows an installation for injecting liquid nitrogen into the water circuit in accordance with one practice of the invention;

FIG. 2 shows schematically an installation with indirect heat exchange in accordance with another practice of the invention; and

FIG. 3 schematically illustrates the arrangement of FIG. 1 with a room shown in phantom.

DETAILED DESCRIPTION

The central heating system according to the illustrated example in FIG. 1 consists of the boiler tank 1 shut off by the cooling operation, the circulating pump 2 and the radiator 3. According to the invention, a mixing device 4 in which liquid nitrogen is injected into the circulating water is connected to the water circuit. The liquid nitrogen reaches the mixing device 4 via an insulated line 5 from an insulated vessel 6. To the mixing device 4 a gas trap 7 is connected in which the injected nitrogen is drawn off in the gaseous state and removed via line 8.

The installation according to FIG. 2 consists again of the tank 1, the circulating pump 2 and the radiator 3. Into the water circuit, according to the invention, is connected a plate heat exchanger 9 in which liquid nitrogen evaporates in the reverse direction. The liquid nitrogen is again supplied to the plate heat exchanger 9 from an insulated vessel 6 via an insulated line 5. The regulation of the temperature of the circulating water and of the liquid nitrogen quantity is not illustrated in either example.

http://www.freepatentsonline.com/4164127.html

 

[Red Squirrel]

Too bad it's patented, so you can't legally use it. Then again, who's going to sue if they don't know?

Actually a coil of pipe over a fan with cold water flowing apparently does help. Just need to change the water every now and then unless you can run it outside to cool it off.

 

[Leros]

Too bad it's patented, so you can't legally use it. Then again, who's going to sue if they don't know?

Actually a coil of pipe over a fan with cold water flowing apparently does help. Just need to change the water every now and then unless you can run it outside to cool it off.

You can build something from a patent, you just can't commercialize it.