A condenser is used to heat patients blood in thermal therapy of treating cancers. Water steam condenses at a temperature of 47 C. Blood enters the condensers at 37c; its thermal capacity is 4329 W/K. The condenser has a heat transfer area of 5m2 ;its overall heat transfer coefficient is 600 W /m2K. Assume that:

(1) Steady operating conditions exist,

(2) The condenser is well-insulated,

(3) Changes in the kinetic and potential energies of fluid stream are negligible,

(4) The overall heat transfer coefficient is constant and uniform, and

(5) Fluid properties are constant.

NTU relation is, for the condenser, =1eNTU Determine: (i) The effectiveness of the condenser; (ii) The exit temperature of the blood; (iii) The rate of heat transfer in the condenser