Using air-conditioning (AC) can continuously suck energy and releases greenhouse gases into the air. These gases erode the ozone layer, making the earth’s temperature continues to rise.
Air conditioning with solar power using solar thermal cooling systems, ie cooling the room by using the sun’s heat. Perhaps this sounds unfair, how could cool the room with it’s own source of thermal energy. However, with solar thermal cooling system technology, this is feasible. Buying new technology that are environmental friendly could means more money to spend, but not with Overstock Promo Codes.
When compared with conventional refrigeration system, in principle there is no difference except in how the fluid can be increased so as to condense the boiling point (condensation) on the condenser. In the usual system that uses electrical input, the boiling point is achieved by using mechanical compression. In the cooling system that uses solar energy, the boiling point is achieved by thermal compression.
To replace the compressor in a conventional refrigeration system, the three components used in the absorption cycle, ie absorber, pumps, and generators. Absorber functions to absorb the refrigerant vapor into the absorbent, so they blended into the solution. The fluid used was water with LiBr (Lithium Bromide). Water and LiBr are used because they meet the criteria of the working fluid (a mixture of refrigerant and absorbent), namely:
1. The differences of boiling point between the refrigerant and solution at a pressure equal.
2. Refrigerant has a high heat of vaporization and a high concentration in the absorbent solution to suppress the circulation rate between the absorber and generator per-unit cooling capacity.
3. Having transport properties, such as viscosity, thermal conductivity, and diffusion coefficient, which is good so it can generate heat and mass transfer are also good.
4. Both the absorb and the refrigerant are non-corrosive, environmentally friendly, and inexpensive.
Other criteria are chemically stable, non-toxic, non-flammable, and does not easily explode. In solar thermal cooling systems, water serves as a refrigerant, while LiBr as the absorbent.
In this process, solar thermal energy input to the generator replaces the electrical energy input to the compressor. Heat absorption occurs in the evaporator, the same as conventional systems and heat dissipation occurs in the absorber and condenser. By using this system, an expensive electrical energy can be replaced by solar thermal uses the compression process. If the sun’s heat is not sufficient to be back up as well with a gas heater. Use Best Buy Coupons to get more reasonable price.