Engineering, 25.11.2019 22:31 AlimBas8
For axial flow through a circular tube, the reynolds number for transition to turbulence is approximately 2300 based on the diameter and average velocity. if d = 3.6 cm and the fluid is kerosene at 20°c, find the volume flow rate in m3/h that causes the transition. for kerosene at 20°c, take rho = 804 kg/m3 and μ = 0.00192 kg/m⋅s. take π = (22/7) and round the final answer to two decimal places.
Answers: 1
Another question on Engineering
Engineering, 04.07.2019 18:10
Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?
Answers: 1
Engineering, 04.07.2019 18:20
Air flows over a heated plate àt a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point.the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.
Answers: 1
Engineering, 04.07.2019 19:10
What is a monomer? how do they form a ploymer from the view point of chemical bonding?
Answers: 1
Engineering, 04.07.2019 19:10
In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?
Answers: 3
You know the right answer?
For axial flow through a circular tube, the reynolds number for transition to turbulence is approxim...
Questions
Chemistry, 19.05.2021 19:30
Chemistry, 19.05.2021 19:30
Mathematics, 19.05.2021 19:30
Mathematics, 19.05.2021 19:30
Mathematics, 19.05.2021 19:30
