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  2. Idle reduction - Wikipedia

    en.wikipedia.org/wiki/Idle_reduction

    Directly heating the coolant is more fuel-efficient than using the engine's waste heat, reducing fuel consumption and emissions. [25] In general, coolant heaters burn 1/8 as much fuel as an idling engine would, simultaneously emitting 1/20 of the emissions and directing heat significantly faster to the passenger compartment. [26]

  3. Core plug - Wikipedia

    en.wikipedia.org/wiki/Core_plug

    Core plugs can also sometimes prevent freeze damage to the motor. During the early stages of the freezing of the engine coolant a freeze plug will sometimes burst, and thus allow the coolant to exit the engine, before it might expand within the engine during the freezing process and potentially crack the engine block. [2]

  4. Cooling bath - Wikipedia

    en.wikipedia.org/wiki/Cooling_bath

    Both flasks are submerged in a dry ice/acetone cooling bath (−78 °C) the temperature of which is being monitored by a thermocouple (the wire on the left). A cooling bath or ice bath , in laboratory chemistry practice, is a liquid mixture which is used to maintain low temperatures, typically between 13 °C and −196 °C.

  5. Here's Everything You Need to Know About Dry Ice - AOL

    www.aol.com/heres-everything-know-dry-ice...

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  6. Internal combustion engine cooling - Wikipedia

    en.wikipedia.org/wiki/Internal_combustion_engine...

    Air-cooled engines do not require coolant service, and do not suffer damage from freezing, two commonly cited advantages for air-cooled engines. However, coolant based on propylene glycol is liquid to −55 °C, colder than is encountered by many engines; shrinks slightly when it crystallizes, thus avoiding damage; and has a service life over ...

  7. Dry ice - Wikipedia

    en.wikipedia.org/wiki/Dry_ice

    The density of dry ice increases with decreasing temperature and ranges between about 1.55 and 1.7 g/cm 3 (97 and 106 lb/cu ft) below 195 K (−78 °C; −109 °F). [3] The low temperature and direct sublimation to a gas makes dry ice an effective coolant, since it is colder than water ice and leaves no residue as it changes state. [4]

  8. Antifreeze - Wikipedia

    en.wikipedia.org/wiki/Antifreeze

    Proper engine coolant and a pressurized coolant system obviate these shortcomings of water. With proper antifreeze, a wide temperature range can be tolerated by the engine coolant, such as −34 °F (−37 °C) to +265 °F (129 °C) for 50% (by volume) propylene glycol diluted with distilled water and a 15 psi pressurized coolant system.

  9. Naturally aspirated engine - Wikipedia

    en.wikipedia.org/wiki/Naturally_aspirated_engine

    Typical airflow in a four-stroke engine: In stroke #1, the pistons suck in (aspirate) air to the combustion chamber through the opened inlet valve.. A naturally aspirated engine, also known as a normally aspirated engine, and abbreviated to N/A or NA, is an internal combustion engine in which air intake depends solely on atmospheric pressure and does not have forced induction through a ...

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