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An engine uses air as the operating substance. At the beginning of compression the pressure is 90 KN /m2 and the temp. is 400C. During the adiabatic compression, the volume is reduced to one-sixteenth of its normal value at the beginning of the compression stroke. Heat is then added at constant pressure until the temp. is 14000C. The stroke is completed by adiabatic expansion until the initial volume is reached, when the cycle is closed by a constant volume process.
a) Draw the P-V and T-S diagram of the engine.
b) Determine the temperature and pressure at all the corners of the diagram.
c) Calculate the thermal efficiency of the cycle.
d) Derive the expression used.
(a) Explain a typical fuel feed system for a C.I engine, differentiate between air injection system and solid injection system. (b) Why Gasoline injection system has been adopte
A single phase series resistive-inductive heating element draws a measured current of 15A when connected to a 225V single phase 50 Hz AC supply. Tests have shown that a minimum
Swing Arm Shock Absorber : This type of suspension is used to serve for rear part of motorcycle. The advantage of this type of suspension is that large deflections are absorbed.
#question. Select a standard rolled steel I-section for the simply supported beam shown in figure below. Select an appropriate factor of safety and material strength. Include ref
(a) What are the limitations of Reversed Carnot Cycle to be used in practice for refrigeration purposes? Also derive the mathematical expression of COP for reversed carnot cycle.
Q. What do you mean by Weld and hold time? Weld time During this period the welding current flows through the circuit, i.e., it enters from one electrode, passes through t
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1. Determine young''s modulus using first 20 data points 2. Determine yield strain and yield stress based on -0.1 offset 3. Determine max(or min) stress. 4. Determine toughness
Find the maximum shear stress at free end: A stepped shaft ABCD, with A is fixed end and D is free end. AB = 1 m, BC = 2 m, CD = 1 m. AB is a hollow shaft of 100 mm outer diam
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