Can a room be cooled by keeping the door of refrigerator open?
468525
The refrigerator works in the principle of Carnot’s cycle.\n\n The heat energy from the refrigerator (closed) is removed and is given out to the surrounding air.  \n\nThat is to say, by heating the external air the air inside the refrigerator is cooled.\n\nHence if the door is opened the cooling effect by the fridge is nullified by its heating effect.\n\nBut technically speaking, if you fit a refrigerator in the wall of a room so that the hot side is out side the room and the room is closed then depending upon the power of the refrigerator the room will be cooled with time.\n\nBut this is the principle used by air conditioning machine. Therefore one will prefer air conditioning rather than fitting a refrigerator.\n\nIn terms of thermodynamics, It is impossible to derive continuous supply of energy by cooling a body below the coldest of its surrounding.
1124988
There is a small switch on the side of the fridge that turns the light inside off when the door closes.  It usually looks like a button.
91397
It gets heated.  In a refrigerator, the refrigerant fluid circulates in a loop from compressor to outside heat exchanger (to release heat) to the inside exchanger (to absorb heat).  Compression increases the fluid's heat, and the outside heat exchanger then transfers to the surrounding air that added heat and additional heat that is released when the gaseous part of the refrigerant condenses.  The latter is called the heat of vaporization, and is a specific property of any vaporizable material.  That same heat of vaporization is absorbed in the inside exchanger as the fluid evaporates.  This absorption cools the refrigerator.  An interesting if small improvement was made on the basic system; the addition of a length of side-by-side welded refrigerant tubing called the siamese.  The still somewhat warm fluid from the outside exchanger flows adjacent to, but in the opposite direction to, the still pretty cold fluid from the inside exchanger.  This "counterflow" exchange helps chill the fluid entering the inside exchanger.  Although warmed up some, the fluid flowing from the inside exchanger is going to get heated up a lot by the compressor anyway, so this ploy increases efficiency.
1163731
air conditioned house.
473977
deliberate. AC uses same principle as the refridgerator, so after the fridges caught on, it was only a matter of time till somebody found a new use for technology.
813488
Put a cot next to the fridge.
795677
cooling it or pressurized it
1173208
It depends on how old the refrigerator is and if it has one of those old latch locks. \n\nIf it has an old latch lock and you can't push your way out of a refrigerator from the inside, it is illegal. \n\nIf it has a rubber gasket seal which allows someone to push his way out from the inside, then it is legal. \n\nIf it needs to be taken to the dump, just take it to the dump.\n\nIt depends on who owned the refrigerator in the first place. Was it the tenant's refrigerator or the landlords refrigerator?
162237
Most refrigerators use a refrigerant that evaporates to remove heat then recompresses the refrigerent and removes heat (outside) to condense it and repeat the cycle.  Perhaps you could use your weight in the heels of your shoes to recompress the refrigerant.  Also check the ammonia refrigerant process which uses the absorbtion of heat, however, breathing an amonia leak could quickly end your project.  Also study the thermocouple (thermocouple pile) effect that can be used to reject heat, however you might have to do a lot of work just to carry the pile around.\n\nOf course, we all use our own body heat to cool us on a very hot day.  Sweat forms on our skin and evaporation carrys away the latent heat of evaporation from our skin.  You could use artificial sweat (water or a mist of water) and circulating air to remove heat, however, that may not be very effective on a humid day and a suit may actually trap excess heat which we constantly lose by radiation when skin temperature is higher than ambient.  Good luck.
1150909
A cool room will keep it inflated longer.
605559
It does heat up the room, but it has two other effects: the constant stream of relatively dry air it evaporates moisture from your skin faster. Also conduction.  If the air and you are still, the air right next to your skin will be a bit warmer than the air further away, because it is colliding with your warm skin and takes some heat from you, but warms up in the process.  Cooler air blowing past will conduct heat from your skin more efficiently.\n\nThe molecules in water move at a variety of speeds. The "average" speed determines the temperature (it isn't exactly an average, but sort of is) but some move faster and some mover slower.  The faster ones escape and go flying into the room, and that brings the "average" energy of the water left a down a bit. This is why when you are wet after bathing, a humid room feels MUCH warmer than a dry room that is the same temperature; water molecules in the air stick to your skin just as often as the quick ones leave.  In a dry room this does not happen so the net effect is the higher energy (faster) water molecules leave preferentially and what is left is a bit cooler.\n\nIf the air is still, you end up with a bit more water in the air right next to, kind of like being in a humid room.\n\nThe second reason, increased conduction is similar, except the air is warmer right next to your skin because air molecules near your skin tend to collide with the ones IN your skin.  The ones in your skin, being a bit warmer, tend to lose energy to the air.  It cools, and the air warms, BUT conduction is more efficient when the temperature difference is larger. So, once the air next to you warms up a bit, you lose heat energy more slowly. Now, if you have a breeze, there is a steady supply of cooler-than-next-to-your-skin air coming in contact with your skin, so the cooling rate is larger.\n\nYou are correct that the fan will on average heat the room up more, but your body may end up cooler.\n\nThis reminds me of people who sit in front of the refrigerator with the door open on a hot day.  You might feel cooler, but the inefficiency of the fridge compressor means more heat goes into the room than the room is cooled off, but you, being right next to the fridge will be cooler perhaps than otherwise.
247063
Running a small refrigerator using an electric generator is not very economical but can be done during a blackout.  It may be necessary to run the generator only periodically especially if you open and close the door oonly just before running the generator and check if the refrigerator is actually operating (listen for vibrations?) while you are running the generator.  If the refrigerator is small enough (dormitory type?) you may be able to use a DC/AC converter that plugs into an automobile cigarette lighter and a long extension cord.  Read the amps/watts/volts/hertz(60 cycle?) from the manufacturer's label and show that to the generator supplyer.  In a recent blackout, we used such a converter to run fans in a basement fireplace insert that heated the house burning firewood while tempertures dipped well below freezing outside (save the pipes!!!).  Good luck.
949148
They can be both. . .either that or the air conditioning turning on (it blows doors shut as if ppl are there closing them)\n\n\nBy the way, I like your avatar pic. Einstein was a great man of wisdom and innovation.
524258
Good point! \nCongratulations, that's got me thinking. Ouch!\n\nCould it have something to do with maintaining the frozen goods in the freezer, which obviously is less important in a fridge. Afterall, when the light comes on in the fridge it produces kinetic energy that turns the light into heat which could linger trapped inside once the door is shut again. \n\nWell, that's my feeble attempt at an answer. It would just drive me crazy otherwise!
1084672
Refrigerators are not magnetized.  Their doors are made of steel.  \n\nIf it was magnetized your flatware would stick to it too (unless you have stainless steel flatware).  Magentized means it asts like a magnet.\n\nNo, it is not required for the fridge to work, and no it doesn't make the fridge cold.  Freon and an air compressor make the fridge cold, and plugging it in makes it work.
527048
Cut a hole and mount a small enclosure cooler (alcohol vapor)\n\nIf cutting a hole is not an option then fabricate a heat sink and have the cooler blow on the heat sink.\n\nuse a simple house type thermostat for temperature control.
936508
Neither. Let's have a given that 1 fridge is empty and at 40 degrees inside. The other fridge is full and at 40 degrees. The room that these 2 fridges are in is at 70 degrees. The difference in temperature is the cause for heat to flow from hot to cold. The fridges have insulation that has a certain resistance to heat flow. The heat will flow through the walls of the fridges the same, so then Q(heat flow)=A(area)x(T1(70 degrees)-T2(40 degrees))/R(resistance). The area of heat loss for both fridges are equal,the resistance of both fridges are equal, the temperature differential for both is equal,  so the amount of electricity needed to keep the fridges at 40 degrees is equal.