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A tube assembly constructed of Cu with an inside diameter of 1.25 cm, wall thickness of 0.8 mm and circumferential fins around the periphery. The fins have thickness of 3 mm, and are spaced 6 mm apart. If the convective heat transfer coefficient from the tube and the fins to the surrounding air is 50 W/m2. 0C, calculate the thermal resistance for a 30 cm length of the tube fin combination. What is the fin efficiency for this arrangement? If the inside tube temperature is 100 0C and surrounding temperature is 20 0C, what is the heat loss per meter length of the tube? What fraction of heat loss by the fin?
Intermittent motion Most seam welding machine requirements are met by the use of continuous drive. However, in cases where heavy work parts are to be welded or more than a sing
Two concentric perforared plates are seperated by a 200mm launder and form the flow exit for a clarifier (figure 1). The inlet water flow of 1200 mcubed/hour into the clarifier is
(a) Illustrate what do you understand by Steering Gear Mechanism ? Describe any one Steering Gear Mechanism. (b) Write short note on Pantograph.
What is entropy microscopically
Valve Clearance and Tappet Adjustment: Like all metal components the valve expands on heating. Hence the valve clearance is set so that on expansion there is room for the valve to
Material Selection and Process Mapping Selecting an optimal material from numerous candidates in one competitive aspect of manufacturing depends on factors such as properties,
Drive a mathematical expression for moment of Inertia of a rectangular section. A body consists of a solid hemisphere of radius 4 cm and a right circular cone of height 12 cm. t
Difference between SI and CI engines SI engine stands for spark ignition engine while CI engine stands for compression ignition engine. SI engine works on the principle of w
A singly excited magnetic device with a moving iron element is illustrated in the figure below. g = 0.10 mm d = 2.0 cm b = 3.0 cm Assume the mmf in the iron and th
Answer for solving this equation 4ydx+xdy=0
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