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Heat Pump - thermodynamics:
Heat Pump: Heat pump is reversed heat engine that removes heat from a body at low temperature and transfer heat to the body at higher temperature. It receive heat Q2 from atmosphere at the temperature T2 equal to atmospheric temperature.
temperature to higher temperature. It supplies heat Q1 to space to be heated at the temperature T1.
Performance of HP: It is measured by coefficient of performance (COP). This is ratio of amount of heat rejected by the system to mechanical work received by the system.
(COP)HP = Q1/W = Q1/(Q1 - Q2) = T1/ (T1 - T2)
Two shafts A and B are co-axial. A gear C (50 teeth) is rigidly mounted on shaft A. A compound gear D-E gears with C and an internal gear G. D has 20 teeth and gears with C and E h
a) An epicyclic gear have three wheels A, B and C. Wheel A has 72 internal teeth, wheel C has 32 external teeth. The wheel B gears with both A and C is carried on an arm which move
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
Clausius inequality - thermodynamics: Whenever closed system undergoes cyclic process, cyclic integral is less than zero (that is negative) for an irreversible cyclic process
Rockwel l Hardness Test: The specimen is subjected to a major load for about 15 seconds after the initial load. ASTM says 13 scales for testing of wide range of materials. Th
Hydrostati c Pressure - Thermodynamics: It is also called as Pressure due to Depth of Fluid. It is needed to determine the pressure exerted by static fluid column on surface,
If Battery Discharges Frequently Causes of Problem Remedy Electrolyte specific gravity NG Charging not done fully
Polymerization Whether similar molecules join in long chain is termed as polymerization and resulting outcome is a polymer in a chemical reaction. Each plastic are polymers. T
its definition, principle, explanation, application, and a diagram
the component of computer integrated manufacturing with the diagram
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