So, we can rewrite this as Ts Tmx minus Ts that is equal to 11 by 48 into r0 square by alpha into h into the perimeter divided by what is mdot it is rho into um into the cross sectional area . . sorry cross sectional area multiplied by Cp into Ts minus Tm. So, now, I can this is minus one.
எனவே, இதை Ts Tmx - Ts என்பது 11 / 48 * r0 ^2 / α * h * P / ρ *um Ac* Cp * க்கு சமம் என்று மாற்றி எழுதலாம், இப்போது,   என்னால் இது -1 என எழுத முடியும்.