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  2. List of UN numbers 3201 to 3300 - Wikipedia

    en.wikipedia.org/.../List_of_UN_numbers_3201_to_3300

    This page was last edited on 8 December 2022, at 13:54 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  3. Heat-transfer fluid - Wikipedia

    en.wikipedia.org/wiki/Heat-transfer_fluid

    Heat transfer fluids are used in countless applications and industrial processes requiring heating or cooling, typically in a closed circuit and in continuous cycles. Cooling water, for instance, cools an engine, while heating water in a hydronic heating system heats the radiator in a room.

  4. List of ISO standards 3000–4999 - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_standards_3000...

    ISO 3201:1975 Sodium and potassium silicates for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method [Withdrawn without replacement] ISO 3202:1997 Aerospace — Screws, pan head, internal offset cruciform ribbed or unribbed drive, threaded to head, MJ threads, metallic material, coated or uncoated ...

  5. Heat trap - Wikipedia

    en.wikipedia.org/wiki/Heat_trap

    Heat traps are valves or loops of pipe on the cold water inlet and hot water outlet of water heaters. The heat traps allow cold water to flow into the water heater tank, but prevent unwanted natural convection and heated water to flow out of the tank. [1] [2] Newer water heaters have built-in heat traps.

  6. Thermic fluid heater - Wikipedia

    en.wikipedia.org/wiki/Thermic_fluid_heater

    A thermic fluid heater (TFH), [1] also known as a thermal oil heater, is a device used for indirect heat transfer through a thermic fluid. It heats the fluid to a desired temperature and then transfers that heat to various processes without any direct contact between the heating source and the product.

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  8. Heater core - Wikipedia

    en.wikipedia.org/wiki/Heater_core

    Some of that coolant can be diverted through the heater core to give some engine heat to the cabin, or adjust the temperature of the conditioned air. A heater core is a small radiator located under the dashboard of the vehicle, and it consists of conductive aluminium or brass tubing with cooling fins to increase surface area. Hot coolant ...

  9. AOL Mail - AOL Help

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    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.