A Steam Power Plant operates in a reheat-regenerative cycle. The steam enters the turbine at 108,000 kg/hr with a pressure of 15 MPaa, 580 C and expand to 5 MPaa. After the expansion the steam is reheated and reenters the turbine at 580 C. Steam extraction occurs at 2.0 MPaa for feedwater heating in the open feed water heater and the remaining expands to 50 kPaa in the condenser. Determine: 1. The mass of steam extracted, kg/hr 2. The cycle thermal efficiency, % 3. The engine thermal efficiency, % 4. The cycle steam rate, kg/kW-hr 5. The amount of circulating water(gpm) in the condenser if the temperature rise is 15 C.
Theory and Design for Mechanical Measurements
Measurement is a term that refers to analyzing a manufactured component regarding the degree of accuracy for dimensions, tolerances, geometric profile, roundness, flatness, smoothness, etc. Measurement always involves comparing the manufactured component or the prototype with a standard specimen whose dimensions and other parameters are assumed to be perfect and do not undergo changes with respect to time.Precisely in mechanical engineering the branch that deals with the application of scientific principles for measurements is known as metrology. The domain of metrology in general deals with various measurements like mechanical, chemical, thermodynamic, physical, and biological measurements. In mechanical engineering, the measurements are limited to mechanical specific such as length, mass, surface profile, flatness, roundness, viscosity, heat transfer, etc.
Basic principles of engineering metrology
Metrology is described as the science of measurement, precision, and accuracy. In other words, it is a method of measurement based on units and predefined standards.
Completely solve and box the final answers.
Step by step
Solved in 3 steps with 6 images