steam turbine operates at steady state with inlet conditions of P1 = 5 bar, T1 = 320 o C. Steam leaves the turbine at P2 = 1 bar and T1 = 180 o C. There is no significant heat transfer between the turbine and its surroundings, and kinetic and potential energy changes between inlet and exit are negligible. a. Calculate power output (per unit mass of steam flowing) of the turbine. b. Calculate the isentropic efficiency of the turbine (ηs ) and show the states on h-s diagram. c. Calculate the second law efficiency
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------------------------------------------------- MIDLANDS STATE UNIVERSITY FACULTY OF COMMERCE Department of Accounting Industrial Attachment Log Book Name : RAY Surname : PASIPAMIRE Reg. Number: R124609Y Period of Attachment: August 2014 to July 2015 Institution Attached to: Westrand Investment RECORD OF WORK DONE (AUGUST 2014) Week | Activity | Student’s comments | 18-23(Orientation Week) | * I was introduced to members of the staff and shown around
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(B-C)(30) BLOCK-CHARGEs are used to calculate energy or demand costs that vary according to the amount consumed. BLOCK-CHARGEs are also used for time-of-use demand charges. Up to 30 BLOCKCHARGEs may be defined, and up to 10 may be referenced by each UTILITY-RATE. The same BLOCK-CHARGE may be referenced by more than one UTILITY-RATE; the program automatically makes as many working copies as are required. See the RATCHET command. BLOCK-CHARGE defines the energy or demand charges that vary according to the
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Topic: Why Dieting Makes you gain weight. Thesis: Dieting unfortunately can make you gain weight depending on many factors. There are a lot of positives for sticking to a diet but mainly there can be a lot of negative outcomes if you do not follow a diet the correct exercise and calorie intake you could find yourself gaining weight while doing the diet you are on. There are a multitude of different dieting plans, some more effective than others. Which is why some plans may or may not work the
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This problem emphasizes the fact that even if we have two different charges, mutual electrostatic force between them will be same. 1.8 Coulomb’s Law in Vector Form As force is a vector quantity, it has some magnitude as well as direction. We will write coulomb’s law in vector form so that it will represent magnitude as well as direction of electrostatic force. Consider two charges q1 and q2 separated by distance r. First of all we will define . It is the vector joining charge q1 and q2.
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Introduction: The melting point of a pure substance is a characteristic that is physically consistent with each specific substance. When a substance is impure, it causes the melting point to decrease and the range of the melting point to increase. In order to identify a pure substance, it must be purified in order to get an accurate melting point estimation. Purification can be done through crystallization. Crystallization is one of the simplest and most effecting ways to purify a solid. The procedure
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3.4 Coolant Piping System The cooling water piping system was modelled by applying fluid dynamic principles. Figure 3.4 – Schematic of system 3.4.1 Coolant Piping, Fittings, Valves, and Surge Tank The resulting pressures are determined by using the modified Bernoulli’s equation, Equation (16). The dimensionless factors are used to determine the head losses within the piping system. The dimensionless friction factors used to develop the model, for 90 degree bends, 45 degree bends
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EXPERIMENT 9: KIRCHOFF’S RULES Introduction Kirchhoff’s Law is defined through two separate components which are Kirchhoff’s Current Law and Kirchhoff’s Voltage Law. These two laws are collinearly related through its total summation being which is equal to 0, except that for Kirchhoff’s Current Law having its variables to be of currents flowing into and outward a node (fig.1), and for Kirchhoff’s Voltage Law having its variables in terms of the drops and rises of its voltages in a closed loop (fig
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Various Parts of Shell and Tube Heat Exchangers Shell Shell is the container for the shell fluid and the tube bundle is placed inside the shell. Shell is the costliest part of the heat exchanger. Cost of shell and tube heat exchanger sensitively changes with change in the diameter of shell. The clearance between the tube bundle and inner shell wall depends on the type of exchanger. As per the TEMA standard, shell size ranges from 6 in (152 mm) to 60 in (1520 mm). Standard pipes are available up
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that do not meet scientifically defined attributes for being a true laser. For example, products that use Light Emitting Diodes or LEDs as they are more commonly known, do in fact produce light, however the light is not intense, producing very little energy and is non-coherent, similar to light produced by common household light bulbs. Non-coherent or non-culminated light is the result of photons moving in random directions at random times, generating random frequencies. The most common use of LEDs is
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