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  2. Polytunnel - Wikipedia

    en.wikipedia.org/wiki/Polytunnel

    Polytunnels are mainly used in temperate regions in similar ways to glass greenhouses and row covers. Besides the passive solar heating that every polytunnel provides, every variation of auxiliary heating (from hothouse heating through minimal heating to unheated houses) is represented in current practice. The nesting of row covers and low ...

  3. Royal Greenhouses of Laeken - Wikipedia

    en.wikipedia.org/wiki/Royal_Greenhouses_of_Laeken

    Since 2021, a new heating system for the Royal Domain of Laeken has come into operation: the new network is directly connected to the Neder-Over-Heembeek incinerator via 4.5 km (2.8 mi) of underground pipes allowing the residual heat released by the incinerator to be exported to the Royal Domain and thus heat the greenhouses and buildings. [6] [7]

  4. Ground-coupled heat exchanger - Wikipedia

    en.wikipedia.org/wiki/Ground-coupled_heat_exchanger

    Earth-air heat exchangers have been used in agricultural facilities (animal buildings) and horticultural facilities (greenhouses) in the United States of America over the past several decades and have been used in conjunction with solar chimneys in hot arid areas for thousands of years, probably beginning in the Persian Empire. Implementation ...

  5. Construction barrel - Wikipedia

    en.wikipedia.org/wiki/Construction_Barrel

    A construction barrel with a barricade light affixed to its handle in Florida. Construction barrels (coloqually known as "drums" in the United States) are traffic control devices used to channel motor vehicle traffic through construction sites or to warn motorists of construction activity near the roadway.

  6. Solar thermal energy - Wikipedia

    en.wikipedia.org/wiki/Solar_thermal_energy

    Solar thermal heat is trapped using the greenhouse effect; the greenhouse effect in this case is the ability of a reflective surface to transmit short wave radiation and reflect long wave radiation. Heat and infrared radiation (IR) are produced when short wave radiation light hits the absorber plate, which is then trapped inside the collector.

  7. Fireplace - Wikipedia

    en.wikipedia.org/wiki/Fireplace

    Fireplace with tubular grate heater, with a high surface area in its heat exchanger and a lift out ash tray to simplify cleanup Some fireplace units incorporate a blower, which transfers more of the fireplace's heat to the air via convection , resulting in a more evenly heated space and a lower heating load.

  8. Bluing (steel) - Wikipedia

    en.wikipedia.org/wiki/Bluing_(steel)

    Rust bluing is also used on shotgun barrels that are soldered to the rib between the barrels, as hot bluing solutions melt the solder during the bluing process. Large scale industrial hot bluing is often performed using a bluing furnace. This is an alternative method for creating the black oxide coating.

  9. Impact attenuator - Wikipedia

    en.wikipedia.org/wiki/Impact_attenuator

    A Fitch barrier consists of sand-filled plastic barrels, usually yellow-colored with a black lid. The "Fitch Highway Barrier System" was invented by race car driver John Fitch after the 1955 24 Hours of Le Mans race when his co-driver, Pierre Levegh rear-ended Austin-Healey driver Lance Macklin at high speed, launching his car through the air ...