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Calculate the heat-removal factor and the duct flow factor for a collector having an overall heat loss coefficient of 6 W/ (m2.K) constructed of aluminum fins and tubes. Tube to tube center distance is 15 cm; fin and tube thicknesses are 0.05 cm; tube diameter is 1.2 cm; fluid heat transfer coefficient is 1200 W/ (m2.K); and the cover transmittance to solar radiation is 0.9 and is independent of direction. The solar absorbance of the absorber plate is 0.9; the
Collector is 1 m wide and 3 m long; the water flow rate is 0.02 kg/sec. The inlet water temperature is 330 K.
A bar of length l is clamped at x=0 and loaded with a mass mat x=l.(a) apply these boundary conditions to equation x=A e^(wt+kx)+Be^(wt- kx) and thereby determine an equation from
South African frogs are capable of jumping as far as 10.0m in one hop. Suppose one of these frogs makes exactly 15 of these jumps in a time interval of 60.0s. What is the frogs ave
A mass floats with 1/3rd of its volume outside water what will be its relative density? Ans) 8/3 g/cc
APPLICATIONS OF NEWTON'S LAWS - II 1. As the body moves through the body it displaces the fluid. It has to exert a force on the fluid to push it out of the path. By the Newto
Force is.......?
An automobile travels due north with a speed of 93 km/h and an acceleration of 1.6 m/s2. All forces considered, the unbalanced force acting on the auto is
1. Calculate the entropy change when 1 kmol of an ideal gas at 300 K and 10 bar expands to a pressure of 1 bar if the temperature stays constant. 2. What is the change in entrop
A body which gets its real configuration immediately and completely after the removal of deforming force from it, is called as perfectly elastic body. Phosphor bronze and quartz ar
Chain Reactor: Splitting of nuclei also causes the emission of neutrons. If these neutron cause further fission in the other nuclei and this process continues, then it is known
The waves which needs medium for their propagation are known as mechanical waves. Example : Waves on string and spring, waves on water surface, sound waves, seismic waves.
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