Question: What Is The Flat Plate Collector?

What is the use of flat plate collector?

The flat plate collector is also considered as a solar thermal energy device used for the applications of space heating, water heating and other many applications..

What is the efficiency of flat plate collector?

The collector efficiency is obtained here, without reflector as 51%, and with reflector as 61%. Thus, the overall efficiency of the flat plate solar collector is increased approximately 10% by using the reflector with the collector.

How are solar collectors classified?

Solar collectors can be classified into two general categories: (i) non-concentrating and (ii) concentrating. In the non-concentrating type, the collector area (the area that intercepts the solar radiation) is the same as the absorber area (the area that absorbs the radiation) [3].

What are the different types of solar collectors?

Solar thermal collectors heating waterFlat plate collectors.Evacuated tube collectors.Comparisons of flat plate and evacuated tube collectors.Evacuated flat plate collectors.Applications.Space heating and ventilating.Process heating.Solar air heating collector types.More items…

How do you calculate the efficiency of a flat plate solar collector?

One method is to compute the thermal efficiency of a collector, which is the ratio of the average heat output from the collector divided by the rate that solar radiation strikes the panel. I = solar radiation intensity striking the collector (Btu/hr/ft2).

How does a flat plate collector work?

Flat Plate Solar Collectors. Description: A flat-plate collector is a large, shallow box—typically mounted on a roof—that heats water using the sun’s energy. … Sunlight passes through the glazing and strikes the absorber plate, which heats up, changing solar energy into heat energy.

How many types of flat plate collectors are there?

Flat-plate collectors are basically divided into two categories according to their use, (i) Water or liquid heaters and (ii) Air heaters and (ii) Air heaters. These collectors meant for these uses are sub-divided as follows: The schematic diagram of all these collectors, with single glazing are shown in Fig.

How do you build a flat plate solar collector?

Here are some easy steps you can follow in building a flat plate solar collector.Step 1 – Test Your Solar Cells. … Step 2 – Cut the Plywood for the Solar Cells. … Step 3 – Varnish the Plywood. … Step 4 – Put Flux on the Solar Cell’s Bus Strips. … Step 5 – Attach the Solar Panel to the Plywood Panel.More items…•

Which collector has maximum efficiency?

Answer: The maximum collector efficiency without reflector is obtained around 51% and with reflector is around 61%. Thus, the presence of reflector increases the collector efficiency of around 10%. The solar collector efficiency of around 55% to 60%, was also obtained by Hematian et al….

Which part of flat plate collector is coated in black?

6. Which part of flat plate collectors is coated in black? Explanation: Absorber plate is usually metallic or coated in black surface which is used for absorbing radiation energy. The absorber plate’s coating directly affects how efficient the collector is.

Which parameters can effect on performance of flat plate collector?

Water is considered in the present study as the working fluid. Other factors affect the efficiency of the collector as the water rate of flow, selective coatings of the front surface of the absorber, heat losses by convection and radiation, the surface absorptivity of the surface.

How is the performance of a flat plate solar collector evaluated?

Conclusion. The solar flat plate collector (SFPC) performance was evaluated through CFD simulations. It was observed that water gave higher efficiency due to high density and thermal conductivity. The simulation results gathered revealed that the temperature of water and air was raised up to 79 °C and 73 °C.

On what factors does the collector efficiency of a solar flat plate collector depends?

The important factor that affecting flat plate solar collector efficiency, for a given place, is the difference between inlet and outlet water temperatures. The increase in temperature difference negatively affects efficiency. This is due to increased in entropy generation.

What are the main components of flat plate collector?

Flat plate collectors consist of a collector surface that absorbs the solar radiation, a glazing to prevent the absorber from reradiating the solar energy, a heat transfer medium (for domestic hot water applications, this is almost always water or a propylene glycol base heat transfer fluid, depending on the climate …

What is a flat plate?

Medical Definition of flat plate : a radiograph especially of the abdomen taken with the subject lying flat.

What is collector efficiency?

Solar collector efficiency. Efficiency, as stated above, is calculated by dividing the “Useful Energy Out” by the “Energy Available.” In the case of the solar heat collector, the Energy Available is the solar radiation that arrives at the collector aperture surface.

What are concentrating collectors?

Concentrating collectors provide energy at temperatures higher than those of FPCs and ETCs. They redirect solar radiation passing through an aperture into an absorber and usually require tracking of the Sun. In concentrating collectors, solar energy is optically concentrated before being transferred into heat.

What are the materials used to make a solar collector?

Raw Materials A passive solar heating system requires a black flat-plate collector panel made of a steel absorber plate covered with two sheets of glass and an insulating pad made of fiber-glass insulation or polyurethane foam with an aluminum foil facing, which acts as a moisture barrier.

What type of non corrosive material is used for design of flat plate collector?

Absorber plate & Flow passages  Copper , which has high conductivity and is corrosion- resistant, is the material for absorber plates, but because copper is expensive, steel is also widely used.