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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.
When a P-type semiconductor is suitably joined to an N-type semiconductor, then resulting arrangement is called P-N junction or P-N junction diode Depletion region : On account
Simple steelyard (reading to 100 g) The pan is made from cardboard, and is formed like a funnel. It is fixed to a beam made of a triangular-shaped lamina in ply- wood or 'Persp
Q. State any three properties of the nuclear forces. (i) A Nuclear force is charge independent. (ii) A Nuclear force is the strongest recognized force in nature. (iii) Nucl
Assume a hot system at temperature T placed in an environment at a lower temperature T0. The system emits more radiation than it absorbs and cools down whereas the surrounding abso
what are the condition for obtaining straight line fringes
A 985-kg car travelling south at 29.0 m/s hits a truck travelling 18.0 m/s west, as shown in the figure below. After the collision, the vehicles stick together and travel with
find the number of electric lines of force that radiate outwards from one coulomb charge in vaccum
Determine the working of N- Channel JFET In N-channel JFET, two p regions are connected with each other (internally or externally) and are called gate (G). Ohmic contacts are
Phase (Φ) : The amount which express at any instant, the displacement of the particle and it's direction of motion is known as the phase of the particle. If two elements of the
Explain the Adding Waves? When two waves come from the same light source, the light waves are coherent, meaning that the phase difference between the waves is constant in time.
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