Hot oil is to be cooled by water in a one-shell-pass and eight-tube-passes heat exchanger. The tubes are thin-walled and are made of copper with an internal diameter of 1.4 cm. The length of each tube pass in the heat exchanger is 5 m, and the overall heat transfer coefficient is 310 W/m2?K. Water flows through the tubes at a rate of 0.2 kg/s, and the oil through the shell at a rate of 0.3 kg/s. The water and the oil enter at temperatures of 20°C and 150°C, respectively. Determine the rate of heat transfer in the heat exchanger and the outlet temperatures of the water and the oil.
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
Hot oil is to be cooled by water in a one-shell-pass and eight-tube-passes
heat exchanger. The tubes are thin-walled and are made of copper with
an internal diameter of 1.4 cm. The length of each tube pass in the heat
exchanger is 5 m, and the overall
Water flows through the tubes at a rate of 0.2 kg/s, and the oil through the
shell at a rate of 0.3 kg/s. The water and the oil enter at temperatures of
20°C and 150°C, respectively. Determine the rate of heat transfer in the
heat exchanger and the outlet temperatures of the water and the oil.
Trending now
This is a popular solution!
Step by step
Solved in 6 steps with 7 images
