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🍽 | Look!Touch!Real feeling! IH experience meeting held ♪ May experience meeting participants recruitment!


Photo Source: Living Kagoshima Web

look!Touch!Real feeling! IH experience meeting held ♪ May experience meeting participants recruitment!

 
If you write the contents roughly
It has high thermal efficiency, can be cooked with high heat, and has a lot of charm such as smart operability.
 

PR / Kyushu Electric Power Kagoshima Sales Office * The photo is an image. Due to the influence of Corona, "The frequency of cooking at home has increased!" "... → Continue reading

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Kagoshima City, Kirishima City, Aira City, Osumi, Kawasatsu Area and other local / outing information sites


Wikipedia related words

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Thermal efficiency

Thermal efficiency(Netsukou Ritsu,English: thermal efficiency) IsHeat engineExpress the performance ofPhysical quantityAndheatIs thrown in asEnergyOf which, mechanicalwork(power) And electrical energy (electricity) Etc.ProportionIs.The heat input to a heat engine Q The work taken out when

Coefficient when expressed as η Is the thermal efficiency of this heat engine.

As an example,Heat engineIsengineThe purpose ofpowerIs the supply of. 1000JulesIf an engine given the thermal energy of the above outputs 300 joules of power, the thermal efficiency of this engine is 30%.The remaining 700 joules departheat,Friction drag,shockIt was consumed by a physical phenomenon that was not intended, and was consumed for purposes other than the intended purpose.lossIs called.Thermal efficiencyFirst law of thermodynamicsDoes not exceed 1 (100%) bySecond law of thermodynamicsWill never be 1.

Nicolas Carnot TheThought experimentThe most thermal efficient virtual inHeat engineAsCarnot cycleProposed.Carnot cycle theoretical thermal efficiency ηth Is the temperature of the heat absorption source T1, The temperature of the exhaust heat source T2 When

Given in.The higher the temperature of the heat absorption source and the lower the temperature of the exhaust heat source, the higher the thermal efficiency. However, since the thermodynamic temperature is always positive, the theoretical thermal efficiency is always less than 1, and the actual thermal efficiency is further reduced.Further, when the temperature of the heat absorption source is lower than the temperature of the exhaust heat source, the thermal efficiency becomes negative and the work cannot be taken out.Conversely, if energy is input as work from the outside, heat can be absorbed from the low temperature source and transferred to the high temperature source.Such an engine is called a heat pump.Heat pump performance replaces thermal efficiencyCoefficient of performanceIt is expressed by the quantity.

Various thermal efficiencies

  • Carnot efficiency: Represents the ratio of the actual thermal efficiency to the thermal efficiency of the most efficient Carnot cycle.It is an index to evaluate how close the operation of the heat engine is to the ideal.

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