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A counter flow heat exchanger is used to cool 2000kg/hr of oil(Cp= 2.5 KJ/Kg K) from 105 oC to 30 oC by the use of water entering at 15 oC. If the overall heat transfer coefficient is approximate to be 1.5 Kw/m2K, make determination for water flow rate, the surface area needed and the effectiveness of heat exchanger. Presume that the exit temperature of the water is not to exceed 80 o C. Use NTU-effectiveness approach.
Determine the initial radius of curvature: A carriage spring, defiantly loaded and simply supported at its ends, has 12 steel plates each 60 mm wide by 6 mm thick. If the lon
Thermal Conductivity The amount of heat passing throughout unit cross-section of a solid material in unit time for unit thermal gradient is termed as thermal conductivity. The
Please help me solve the following problem. Steam is throttled from a pressure of 700kPa to 100kPa and a temp. of 100 degrees Celsius. Determine the dryness factor of the steam
(a) What could be the characteristics of tool materials. (b) Describe several tool materials with their composition.
Calculate number of cycles to fracture: If the plastic deformation is taken into consideration calculate number of cycles to fracture in above Example. Solution Δ K I
Con e of Friction: When the body is having impending motion in direction of P , the frictional force will be limiting friction and the resultant reaction R wil
Q. Basic requirements of a control scheme of steam generators? The basic requirements of a control scheme are: • Master steam pressure control by feedback to the water flow
its definition, principle, explanation, application, and a diagram
what do you mean by static and dynamic unbalance in machinery
which topics i should take from mechanical engineering to compare them
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