Engineering, 21.10.2020 01:01 dommalb
Hot combustion gases of a furnace are flowing througha concrete chimney (k =1.4 W/m · °C) of rectangular cross section. The flow section of the chimney is 20 cm ×40 cm, and the thickness of the wall is 10 cm. The average temperatureof the hot gases in the chimney is Ti=280°C, and the averageconvection heat transfer coefficient inside the chimney is hi=75 W/m2· °C. The chimney is losing heat from its outer surfaceto the ambient air at To=15°C by convection with a
Answers: 2
Another question on Engineering
Engineering, 04.07.2019 18:10
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
Engineering, 04.07.2019 18:10
Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
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
You know the right answer?
Hot combustion gases of a furnace are flowing througha concrete chimney (k =1.4 W/m · °C) of rectang...
Questions
Social Studies, 21.01.2021 03:40
English, 21.01.2021 03:40
Mathematics, 21.01.2021 03:40
Mathematics, 21.01.2021 03:40
Mathematics, 21.01.2021 03:40
Spanish, 21.01.2021 03:40
History, 21.01.2021 03:40
English, 21.01.2021 03:40
English, 21.01.2021 03:40
Spanish, 21.01.2021 03:40
Social Studies, 21.01.2021 03:40
