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  2. Building insulation material - Wikipedia

    en.wikipedia.org/wiki/Building_insulation_material

    The blue plastic on the central building is the vapour barrier for the thermal wall insulation before the exterior cladding has been fixed. Building insulation materials are building materials that form the thermal envelope of a building.

  3. Coefficient of performance - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_performance

    For a heating system this would mean two things: Reducing the output temperature to around 30 °C (86 °F) which requires piped floor, wall or ceiling heating, or oversized water to air heaters. Increasing the input temperature (e.g. by using an oversized ground source or by access to a solar-assisted thermal bank [ 10 ] ).

  4. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    The three major functions of heating, ventilation, and air conditioning are interrelated, especially with the need to provide thermal comfort and acceptable indoor air quality within reasonable installation, operation, and maintenance costs. HVAC systems can be used in both domestic and commercial environments.

  5. Energy density - Wikipedia

    en.wikipedia.org/wiki/Energy_density

    The density of thermal energy contained in the core of a light-water reactor (pressurized water reactor (PWR) or boiling water reactor (BWR)) of typically 1 GW (1000 MW electrical corresponding to ≈ 3000 MW thermal) is in the range of 10 to 100 MW of thermal energy per cubic meter of cooling water depending on the location considered in the ...

  6. Thermal radiation - Wikipedia

    en.wikipedia.org/wiki/Thermal_radiation

    Thermal radiation is the emission of electromagnetic waves from all matter that has a temperature greater than absolute zero. [5] [2] Thermal radiation reflects the conversion of thermal energy into electromagnetic energy. Thermal energy is the kinetic energy of random movements of atoms and molecules in matter. It is present in all matter of ...

  7. List of brazing alloys - Wikipedia

    en.wikipedia.org/wiki/List_of_brazing_alloys

    Widely used in electrical industry. Used in dairy industry. Broad melting range, can form fillets and bridge large gaps. 34: 16: 50: Ag 50 Cu 17 Zn 33: Ag–Cu–Zn 780/870 [41] – BAg-6b, BVAg-6b, Braze 502, Braze 503 (VTG grade for vacuum systems, with reduced volatile impurities). For nonferrous alloys. High electrical and thermal conductivity.

  8. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    Graphite flakes can cost around US$0.9/kg carbon. [20] Price of synthetic industrial diamond for grinding and polishing can range from 1200 to 13 300 USD/kg, while cost per weight of large synthetic diamonds for industrial applications can be on the order of million dollars per kilogram. [21] 7: N: Nitrogen: 0.0012506: 19 (5.263 × 10 17 kg) 0. ...

  9. Renewable energy - Wikipedia

    en.wikipedia.org/wiki/Renewable_energy

    Levelized cost: With increasingly widespread implementation of renewable energy sources, costs have declined, most notably for energy generated by solar panels. [ 182 ] [ 183 ] Levelized cost of energy (LCOE) is a measure of the average net present cost of electricity generation for a generating plant over its lifetime.

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