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  2. Passive ventilation - Wikipedia

    en.wikipedia.org/wiki/Passive_ventilation

    A roof turbine ventilator, colloquially known as a 'Whirly Bird' is an application of wind driven ventilation. Passive ventilation is the process of supplying air to and removing air from an indoor space without using mechanical systems .

  3. Seasonal thermal energy storage - Wikipedia

    en.wikipedia.org/wiki/Seasonal_thermal_energy...

    In hot climates, exposing the collector to the frigid night sky in winter can cool the building in summer. The six-month thermal lag is provided by about three meters (ten feet) of dirt. A six-meter-wide (20 ft) buried skirt of insulation around the building keeps rain and snow melt out of the dirt, which is usually under the building.

  4. Sayano-Shushenskaya power station accident - Wikipedia

    en.wikipedia.org/wiki/Sayano-Shushenskaya_power...

    Shortly after this, the bolts keeping the turbine cover in place broke, and under water pressure of about 20 bars (2,000 kPa), the spinning turbine with its cover, rotor, and upper parts started to move up, destroying machinery hall installations. At the same time, pressurized water flooded the rooms and damaged plant constructions. [3]

  5. Thermal energy storage - Wikipedia

    en.wikipedia.org/wiki/Thermal_energy_storage

    A thermal battery used in this mode is a renewable energy source as the energy extracted in the winter will be restored to the GHEX the next summer in a continually repeating cycle. This type is solar powered because it is the heat from the sun in the summer that is removed from a building and stored in the ground for use in the next winter ...

  6. Solar thermal collector - Wikipedia

    en.wikipedia.org/wiki/Solar_thermal_collector

    Matrix Energy Inc. has patented a roof-mounted product called the "Delta", a modular, roof-mounted solar air heating system where south-, east-, or west-facing facades are simply not available. Each ten-foot (3.05 m) module will deliver 250 CFM (425 m3/h)of preheated fresh air typically providing annual energy savings of 1100 kWh (4 GJ) annually.

  7. Wind energy is not enough: Winter storms show renewables ...

    www.aol.com/news/wind-energy-not-enough-winter...

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