Consider a steel pan used to boil w

Consider a steel pan used to boil water on top of an electric range. The bottom section of the pan is L=0.5 cm thick and has a diameter of D=20 cm. The electric heating unit on the range top consumes 1000W of power during cooking , and 85 percent of the heat generated in the heating element is transferred uniformly to the pan. Heat transfer from the top surface of the bottom section to the water is by convection with a heat transfer coefficient of h. Assuming constant thermal conductivity and one-dimensional heat transfer, express the mathematical formulation (the differential equation and the boundary conditions) of this heat conduction problem during steady operation. Do not solve.

ผลลัพธ์ (ไอร์แลนด์) 1:

Smaoinigh uile cruach a úsáidtear chun uisce a fhiuchadh ar bharr raon leictreach. Is é an t-alt bun an uile L = 0.5 cm tiubh agus tá trastomhas D = 20 cm. An t-aonad teasa leictreacha ar bharr raon ídíonn 1000W cumhachta le linn cócaireachta, agus tá sé 85 faoin gcéad de na teas a ghintear sa eilimint teasa a aistriú go haonfhoirmeach chuig an uile. Tá aistriú teasa ó dhromchla bharr an ailt bun leis an uisce trí chomhiompar le comhéifeacht traschur teasa de h. Ag glacadh leis seoltacht teirmeach leanúnach agus traschur teasa aon-tríthoiseach, in iúl le chéile matamaiticiúla (an chothromóid dhifreálach agus na coinníollacha teorann) den fhadhb seo sheoladh teasa le linn oibriú seasta. Ná réiteach.