(25 pts) A natural gas pipeline (50 cm diameter) is routed through a river as shown...
4. (25 pts) Water is flowing inside a thin wall, smooth pipe of diameter 0.05 m at a mass flowrate of 0.3 kg/s. The water enters the pipe at a mean temperature Tm,i= 80 °C and exits at Tm,o= 80 °C while the pipe surface temperature is maintained at Ts= 20 °C along its entire length. a. Is the flow turbulent or laminar? b. Calculate the average convection heat transfer coefficient inside the tube. c. Calculate the length of the...
DON’T disregard the thermal conductivity of the pipe 3.) Oil at 200 C flows in a pipeline. The pipe has a 30-cm diameter and the flow is at an average velocity of 2 m/s. A 200-m-long section of the pipeline passes through icy waters of a lake at 0° C. The pipe is uncoated carbon steel with a thermal conductivity of 61 W/m o C. Determine (a) the temperature of the oil when the pipe leaves the lake, (b) the...
5. Hot water at 50 C is routed from one building in which it is generated to an adjoining building in which it is used for space heating. Transfer between the buildings occurs in a steel pipe (k -60 W/mK) of 100-mm outside diameter and 8-mm wall thickness. During the winter, representative environmental conditions involve air at T=-5 C and V= 3 m/s in cross flow over the pipe (a) If the cost of producing the hot water is $0.10...
Water is pumped through a pipe of diameter 12.0 cm from the Colorado River up to Grand Canyon Village, on the rim of the canyon. The river is at 564 m elevation and the village is at 2084 m. (a) At what minimum pressure must the water be pumped to arrive at the village? (The density of water is 1.00 x 103 kg/m.) MPa (b) If 4800 m are pumped per day, what is the speed of the water in...
please help with all steps. TIA Problem 11.047 It is proposed that the exhaust gas from a natural gas-powered electric generation plant be used to generate steam in a shell-and-tube heat exchanger with one shell and one tube pass. The steel tubes have a thermal conductivity of 40 W/m.K, an inner diameter of 52 mm, and a wall thickness of 4 mm. The exhaust gas, whose flow rate is 2 kg/s enters the heat exchanger at 400°C and must leave...
Water is pumped through a pipe of diameter 12.0 cm from the Colorado River up to Grand Canyon Village, on the rim of the canyon. The river is at 564 m elevation and the village is at 2092 m. (a) At what minimum pressure must the water be pumped to arrive at the village? (The density of water is 1.00 ✕ 103 kg/m3.) MPa (b) If 4100 m3 are pumped per day, what is the speed of the water in...
Water is pumped through a pipe of diameter 12.0 cm from the Colorado River up to Grand Canyon Village, on the rim of the canyorn The river is at 564 m elevation and the village is at 2082 m (a) At what minimum pressure must the water be pumped to arrive at the village? (The density of water is 1.00 x 103 kg/m3.) MPa (b) If 4900 m3 are pumped per day, what is the speed of the water in...
Question 1 You are requested by your company to access the possibility of using river water to cool a heat transfer fluid in your company as you have just completed Thermal System course at Faculity of Engineering, UM Condition of the river water The river water flows at an average temperature of 15 C at a flowrate of 2 m'/s Your design A 15-m-long section of a circular duct of Alloy 2024-T6 with inner diameter of 20cm and wall thickness...
1. Is the floe within the pipe turbulent or laminar? Justify your answer 2. What is the average Nusselt number and heat transfer coefficient in the pipe? You can assume that the flow is fully developed 3. What length of pipe is required to achieve the desired exit temperature? 4. Was your assumption of fully developed flow justified? Explain why or why not. How much error did this assumption introduce into calculation of nusselt number? Do you need more or...
Dr. Clark designed a system capable of cooling the air of a house using water in river. The main component is stainless steel pipe (k=15.1 W/mK, Di=0.15m Do=0.152m) submerged in a river with a water temperature T_fluid=17 C. The warm air from the house enters this cooling pipe at a volume flow rate 0.025 m3/s, and T_m,i=27 C. The exit temperature is expected to be T_m,o=20 C. The convection heat transfer coefficient between the pipe external surface and water is...