Answer Happy

12:24 sl ut .myclassroom.cput.ac.za HEAT TRANSFER Take Test: Assignment 1 in a steam power plant the exnausig and 300°C are used to preheat economizer which is part of t passing them over a bank of t which water is flowing at a rate mean tube wall temperature is 8 gases approach the tube bar direction at 4.5 m/s. The outer di tubes is 2.1 cm, and the tubes in-line with longitudinal and trans of SL = ST = 8 cm. There are 1 flow direction with eight tubes Using the properties of air for e> determine (a) the rate of heat transfer per tubes, (b) The pressure drop across th R + 53
12:28 • ut .myclassroom.cput.ac.za យ៏ 3 X HEAT TRANSFER Take Test: Assignment 1 m-me will longitudinal and trans of SL = ST = 8 cm. There are 1 flow direction with eight tubes Using the properties of air for e> determine (a) the rate of heat transfer per tubes, (b) The pressure drop across th (c) The temperature rise of through the tubes per unit length 200.73 kW: 40.2 Pa; 10.6 °C a. b. 115.43 kW: 36.2 Pa: 4.6 °C C 120.11 kW: 12.2 Pa: 7.6°C d. 130.48 kW: 42.2 Pa; 8.6 °C + B