enow.com Web Search

  1. Ads

    related to: rotating heat lamp for plants images

Search results

  1. Results from the WOW.Com Content Network
  2. Thermal wheel - Wikipedia

    en.wikipedia.org/wiki/Thermal_Wheel

    Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...

  3. Bunsen burner - Wikipedia

    en.wikipedia.org/wiki/Bunsen_burner

    Bunsen sought to improve existing laboratory burner lamps as regards economy, simplicity, and flame temperature, and adapt them to coal-gas fuel. While the building was under construction in late 1854, Bunsen suggested certain design principles to the university's mechanic, Peter Desaga , and asked him to construct a prototype.

  4. Solar-powered Stirling engine - Wikipedia

    en.wikipedia.org/wiki/Solar-powered_Stirling_engine

    NASA patented a type of solar-powered Stirling engine on August 3, 1976. It used solar energy to pump water from a river, lake, or stream. [1] The purpose of this apparatus is to “provide a low-cost, low-technology pump having particular utility in irrigation systems employed in underdeveloped arid regions of the earth…[using] the basic principles of the Stirling heat engine“.

  5. Stirling engine - Wikipedia

    en.wikipedia.org/wiki/Stirling_engine

    The hot heat exchanger is in thermal contact with an external heat source, such as a fuel burner, and the cold heat exchanger is in thermal contact with an external heat sink, such as air fins. A change in gas temperature causes a corresponding change in gas pressure, while the motion of the piston makes the gas alternately expand and compress.

  6. Grow light - Wikipedia

    en.wikipedia.org/wiki/Grow_light

    Ficus plant grown under a white LED grow light. A grow light is an electric light that can help plants grow. Grow lights either attempt to provide a light spectrum similar to that of the sun, or to provide a spectrum that is more tailored to the needs of the plants being cultivated (typically a varying combination of red and blue light, which generally appears pink to purple to the human eye).

  7. Crookes radiometer - Wikipedia

    en.wikipedia.org/wiki/Crookes_radiometer

    The vanes rotate when exposed to light, with faster rotation for more intense light, providing a quantitative measurement of electromagnetic radiation intensity. The reason for the rotation was a cause of much scientific debate in the ten years following the invention of the device, [ 1 ] [ 2 ] but in 1879 the currently accepted explanation for ...

  1. Ads

    related to: rotating heat lamp for plants images