In a refrigeration system brine solution having a viscosity 16.5 N-s/m2 and thermal conductivity 0.85 W/m K is flowing through a long pipe 2.5 cm inner diameter at a velocity of 6.1 m/s. Under these conditions the heat transfer coefficient was found to be 1135 W/m2K for a brine temperature of -1°C and pipe temperature of 18.3°C. Find the temperature rise of brine per metre length of pipe if the velocity is doubled and same heat transfer takes place. Assume specific heat of brine is 3768 J/kg K and density is 1000 kg/m3. Assume fully developed flow.