Solar Air Conditioning
Problem Identification
In the past decade, heat waves have become more frequent in Lebanon. Their severity is constantly rising in winter times of year as well as in summer times. This high temperature is directly affecting both residential and industrial use of Air-Conditioning. The massive consumption has made AC a key driver of electric peak power demand growth. As of 2007, the buildings sector is acknowledged to account for 42% of global electricity consumption! Both the environment and the energy bill of the individual are negatively affected by this increase in use of Air-Conditioning. Firstly, it is essential for consumers to know that high levels of energy consumptions are associated with Air-Conditioning. A great deal of electricity is consumed to take the refrigerant through states of compression and expansion by electrically-powered pumps and compressors, in order to provide the required air temperature. Secondly, electricity price is steadily increasing and the more consumers use Air-Conditioning, the more they have to pay. The solution: use solar energy to cool places that solar energy itself heats up! The use of this alternative resource will reduce both the sizes of the bills and carbon footprints of the users. Solar air conditioning will play an increasing role in zero energy and energy-plus buildings.
Solar Air Conditioning
How to go Green
With the intention of preserving the environment, DAWTEC is investing in designing air-conditioning systems that make use of solar power, regularly known as Solar Air-Conditioners. Photovoltaic systems provide the power for any type of electrically powered air-conditioner based on compression or adsorption/absorption. For small residential and small commercial air-conditioning, Photovoltaic-powered systems are being the most frequently implemented solar cooling technology. These solar air conditioning systems differ from traditional air coolers only by the fact that they run on solar power produced directly from the solar Photovoltaic panel, or from the battery charged by the panel. The whole system is composed of a Photovoltaic module, a charge controller with microprocessor based PWM Technique, an inverter if necessary, a battery, and necessary protections. The systemís price is well-revised not to exceed any other similar home system, and by powering the air-conditioner by itself, it will reduce electricity bills.
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