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The average heat transfer co efficient for flow of 100o C air over a flat plate is calculated by observing the temperature time history of a 3mm thick copper slab exposed 100o C air. In one test run, the initial temperature of the plate was 210 oC, and in 5 minutes the temperature decreased by 40 oC. Determine the heat transfer coefficient for this case. Also derive the equation used to determine heat transfer coefficient. Take the following properties of copper ρ = 8800kg/m3 , Cp = 400J/KgoC
Steps for solving the problems when more than two coplanar forces are acting on the rigid body: The steps are as; 1. Check the Problem for the concurrent or Non concurren
The following observations were made during a tensile test on mild steel specimen 60 mm in diameter and X mm long. Elongation with 50 KN load (within the limit of proportionality)
Q. What are Preheat and interpass temperature? Preheat and interpass temperatures shall be in accordance with the applicable codes. Materials that require preheat for welding
The steam that leaves the super-heater is expanded from 130bar at 535°C to 25.2bar at 310°C in a high pressure turbine. The steam from the exit of the HP turbine is reheated to 535
what is relation between tool life and cutting speed?
Transformer Type Power Sources These are the simplest and cheapest type available for arc welding. These are the mainly used for SMAW, AC SAW and gouging applications. These are
How a turbine works
Example on like parallel forces
A steel plate with dimension shown in sketch (a) below is subjected to P = 150 kN tensile force and M= 300 N-m bending moment. The plate is made of AISI 1080 steel. A hole is to be
Consider the rocket on a test stand as described in Chapter 3 of the lecture notes. The nose of the rocket is fixed. The rocket is of length L, constant EA and constant m, mass per
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