conversion efficiency, definition of

This is usually defined as the act of replacing stale or noxious air with fresh air.

In the eco field it is also important to differentiate between what are termed passive ventilation and active ventilation. Passive ventilation is where no additional electrical or mechanical energy is required to make the ventilation work. Active ventilation on the other hand won't work without using additional energy.

Passive ventilation is an aspect of passive building design and often utilizes heat chimneys and natural air flows across the land to achieve adequate ventilation.

• Researchers Create Efficient, Recyclable Solar Cells from Trees
  Researchers from Georgia Institute of Technology‘s Center for Organic Photonics and Electronics (COPE), in collaboration with Purdue University have unveiled a new efficient, recyclable organic solar cell made from trees—or, more specifically,...
• Researchers Create Efficient, Recyclable Organic Solar Cells from Trees
  Researchers from Georgia Institute of Technology‘s Center for Organic Photonics and Electronics (COPE), in collaboration with Purdue University have unveiled a new efficient, recyclable organic solar cell made from trees—or, more specifically,...
• SCHOTT Solar Company Breaks Record for Screen-Printed Solar Cell Efficiency
  Over the years, new solar technology has broken a few records including solar energy concentration and solar vehicular speed. However this week, SCHOTT Solar announced that they had broken the record for screen-printed solar cell efficiency, after creating...

Related Tags: solar power, solar energy, solar cells