El modelo de un barco de escala se va a construir en un laboratorio.
a) Determinar la ve...
Engineering, 06.05.2020 07:33 unknown9263
El modelo de un barco de escala se va a construir en un laboratorio.
a) Determinar la velocidad a la que debe moverse el si el tiene una velocidad de
b) Determinar la fuerza de resistencia al movimiento que se producirá en el si en el
se miden
c) Calcular la potencia que debe proporcionarse a la flecha de la hélice, si la eficiencia de la misma es
del . Determinar en
datos:
1:50; a) modelo, prototipo, 19.9 yd/s; b) modelo, prototipo, 21846 kg; c) 77 %, CV
Answers: 2
Engineering, 04.07.2019 18:10, heidiburgos1own6c0
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:10, wyattlb97
Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?
Answers: 3
Engineering, 04.07.2019 18:20, RiverH246
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, 06.07.2019 04:10, jessicajustice6215
Cold water (cp=4180j/kg k) leadıng to a shower enters a thin-walled double-pipe heat transfer at 15c at a rate of 0.25kg/s and is heated to 45c by hot water (cp=4190j/kg k) that enters at 100c at the rate of 3kg/s. if the overall heat transfer coefficient is 950w /m2 k , determıne the rate of heat transfer and the heat transfer surface area of the heat exchanger using e - ntu method
Answers: 1
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