If you have a large area that you need to cool off (say a few thousand square feet of industrial sp

If you have a large area that you need to cool off (say a few thousand square feet of industrial space) then you are in big trouble. Each degree of temperature over 25C reduces operating efficiency of staff for 3-7% and then apart from the loss in efficiency and have problems with frequent errors. But to cool such a large space, you need a huge air conditioners that cost hundreds of thousands. The two most common techniques are water cooling device for cooling water (chiller), which is typically weatherproof electric and cold water which is then divorcing after installation (which must be insulated to avoid the pipe Rosie). The problem with this technique is that it must have insulated installation and a lot of electricity available, so this technique even in our very popular (and practically the only one on the market) has serious problems with the existing buildings and the peak power of large customers, where you will Penalties effect is likely to be higher than the energy they actually consumed.
The other possibility is gas air conditioning, this has been far cheaper in energy consumption but is also more expensive to purchase, so you should weigh whether it is within a reasonable cheaper still go to the electric chillers or gas system (for example, my position is that for systems that do not directly make money, and the air conditioning is one such system - should use the principle that any savings must be returned within three years or less - if you can not justify buying a more expensive system in three years then it do not go).
Americans use a lot of gas conditioning, but what they also do is they do not cool the water which then distributed throughout the building than cool air, which then channels divorce around. Channels for conditioned air also should be insulated to prevent dew, but are somewhat less expensive and easier to install for the entire weatherproof system which is necessary for the distribution of water. weatherproof
A common characteristic of both systems (in both variants distribution of energy) is that using a heat pump in which to invest a lot of energy to get out of it exhausted intense cooling power you need.
The first way is a geothermal heating and cooling. The principle is very simple, if you dig into the ground, soil temperature at two meters deep and is constant throughout the year and can be used as the medium indefinitely large cooler or heater. This means that if you bury hill tubes through which water permeable weatherproof and attach one end of a heat pump then you can heat or cool the space at a cost of electrical energy required for driving the pump (eg, peanut). Geothermal heating is with us unknown concept and I do not know of specific examples where it is used. Pipes can either bury it in some depth and "wrap" around the building or even below the ground (so to lay pipe horizontally), or you can dig small wells to say 30-40 meters deep water and push to the bottom and then back (there are still little effective). Cold or warm water, then divorced on as you please.
Another weatherproof system that has been in our country practically unknown evaporative or adiabatic cooling. This is an extremely simple system that uses fundamental laws of physics to function. weatherproof In short, the laws of thermodynamics among others say that if the liquid weatherproof turns into a gas then takes from the environment (heat) energy. If you translate it into the language of evaporative cooling that would mean that if the fine scattered water in a hot air then she will turn into a gaseous state and thereby cool the space. The reason we go to the beach or love to walk around the lake is largely just evaporative effect of large amounts of water.
If you take for example, room ventilator and in a place where the air is taken prostrate wet cloth, weatherproof air flow passes through the cloth to dry cloth and thereby reduce the air temperature. If the same principle is scaled to enormous proportions, then you get evaporative cooler that has a membrane (usually cardboard) over the spill large amounts of water and a giant fan to blow air that has passed through the membrane into the space you want to cool. This system is extremely easy because all you need is a cardboard cone, a small plastic tube and a big fan. The system that I installed in my company has a cooling weatherproof power of 45kW (in ideal conditions) and blown over 16.000m3 per hour (that is, really, a lot of air); but the beauty of the story is to use water that is a very cheap source of energy and a little bit of electricity it takes to run the water pump and an electric motor that drives the fan (about 1kW per hour) - and as a jewel in the end, the purchase price is about 12.000kn net. Try it in any other way create 45kW of cooling power for that kind of money, even if they bought the second-hand refrigerators :).
The problem is that the adiabatic cooling is very dependent on weather conditions. In short, the air as a medium weatherproof can receive only a certain amount of moisture and