Thermal And Environmental Evaluation Solar Water Heater System For Residential Buildings

As the input of the issue, accurate geographic data corresponding to the amount of daylight and common temperature is required in different months of the year. Figure 5 exhibits the annual intensity of solar radiation in Tehran, and Figure 6 shows the common temperature in different months of the 12 months. So the stock of heaters in our properties for the next 20 years is dependent upon what we set up at present.