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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. Air preheater - Wikipedia

   en.wikipedia.org/wiki/Air_preheater

   Schematic diagram of typical coal-fired power plant steam generator highlighting the air preheater (APH) location. An air preheater is any device designed to heat air before another process (for example, combustion in a boiler), with the primary objective of increasing the thermal efficiency of the process.

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. List of solar thermal power stations - Wikipedia

   en.wikipedia.org/wiki/List_of_solar_thermal...

   With 10h heat storage; commercial operation began September 2015, [50] [51] mothballed since May 2019 [52] Cerro Dominador Solar Thermal Plant (Atacama 1) Chile: María Elena, Antofagasta: 110 Solar power tower: 17.5

7. Even desert plants known for their resilience are burning and ...

   www.aol.com/news/even-desert-plants-known...

   “We saw damage to plants this summer that had never showed heat stress before,” Schilling said. Sunburned leaves of a mock orange shrub on Aug. 23. Brown patches show where the tissue was damaged.