In: Mechanical Engineering
In a heat treatment of a specific excavator bucket tooth of 15kg mass, the tooth is heated to 8850C and to achieve the required level of physical properties it needs to be cooled to the final temperature in a cooling tank using brine as the cooling medium. Determine the final temperature if the minimum required mass of brine initially at 200C temperature is 260 kg, using specific heat values cb= 3.71 J/g·K and cs=0.47 J/g·K for brine and steel respectively. Assume no heat losses to the environment.