Thermal Analysis Of Solar Collectors Ppt

Solar thermal system components.

Thermal analysis of solar collectors ppt.

Using the sun energy to heat water is not a new idea. Specific system costs for ship plants solar heat in industrial processes vary over a wide range. More than one hundred years ago black painted water tanks were used as simple solar water heaters in a number of countries. Evacuated tube collectors qcoll is the energy collected per unit collector area per unit time fr is the collector s heat removal factor τis the transmittance of the cover αis the shortwave absorptivity of the absorber g is the global incident solar radiation on the collector ul is the overall heat loss coefficient of the collector.

These are some of the components to a thermal solar system. Solar thermal system solar thermal collector 2. Two important physical principles govern the technology of solar thermal collectors. Solar thermal collectors capture and retain heat from the sun and transfer this heat to a liquid.

The analysis of the concentrator s optical behaviour with respect to incident radiation has been undertaken previously 2 3. Heliostat field collector hfc point 100 1500 150 2000 two axes parabolic dish reflector pdr point 100 1000 100 500 tracking. Concentration ratio is defined as the aperture area divided by the receiver absorber area of the collector. Cost analysis of solar thermal collectors.

Since its invention in 1974 1 many advances in the design of the compound parabolic concentrator solar energy collectors have been made. Collectors one of the main elements of a solar thermal system is the collector which is usually set up on a rooftop of a property by making use of frames and brackets. This collector contains. Solar collector the energy of the solar radiation is in this case converted to heat with the use of solar panel.

2 types of solar collectorstypes of solar collectors note. Any hot object ultimately returns to thermal equilibrium with its environment due to heat loss from the hot object. Introduction solar thermal solar photovoltaic in cold climate large amount of low grade thermal energy is used. Solar thermal is mainly ideal for water heating purposes.

The data fully depend on the data provided by the various companies. The charts below show the specific system costs for existing ship plants all over the world documented in the ship database.