Difference between Flat Plate Collectors and Focusing Collectors

Difference between Flat plate collectors and Focusing collectors:

Flat Plate Collectors:

• Flat plate collectors required more area for absorber than focusing collectors.
• An additional anti-freeze is used for protection.
• This can reach only to a low-temperature range.
• Due to low temperature, it does not use to produce power.
• Design is easy.
• It has low insulation intensity.
• Required low maintenance.
• Flat plate collector absorber has uniform flux.
• This is comparatively low cost.

Focusing Collectors:

• Focusing collectors required less area for absorber than flat plate collectors.
• No additional requirements are needed.
• This can reach to a high-temperature range.
• Due to high temperature, it can be used for power generation.
• Complex design.
• It has high insulation intensity.
• Required more maintenance than flat plate collectors.
• Focusing collectors have non-uniform flux.
• This is costly.