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Example 6.3: Stream Acting as a Bath
In the process of Example 6.2, the flow rte of streams 1′ and 2′ is made very high, while the state of streams 1, 2, and 1′ are the same as in the previous example. Repeat the calculation of entropy generation for these new conditions.
Example 6.8: Choosing the Cooling Source
Water at 50 °C is to be cooled to in a flow process to 30 °C. This can be done either by mixing it with ice at 0 °C, or with water at 25 °C. Perform a second-law analysis of this process to determine which method is thermodynamically more efficient.Additional data: The latent heat of ice melting is 332 kJ/kg. Assume the surroundings to be at 25 °C.
A3m3 tank is divided into two parts via a thermally insulated wall. One part has a volume of 2 m3 and contains a vapor-liquid mixture of steam, 7% liquid, at 5 bar. The other part contains steam at 10 bar, 500 °C. A valve is opened and allows th..
Develop the designed circuit using breadboard in the laboratory. Available thermal sensor can be used in the circuit. Discuss the effect of resistors on calibration of the sensor with specific emphasis on the sensitivity of the instrument.
For total yearly payments of $5000 for 10 years, compare the compound amount accumulated at the end of 10 years if the payments are (a) end-of-year, (b) weekly, and Cc) continuous. The effective (annual) interest is 20 percent and payments are uni..
Analyze the difference between visual pursuit tracking and visual scanning in terms of the oculomotor mechanisms that underlie these two activities.
between the analyses obtained during the two shifts?
Compute the sending-end voltage, current, real power, and reactive power for the following conditions
The binding of the hydrophobic amino acid tryptophan to a protein shows a pronounced hydrophobic effect. The thermodynamic data for the binding of is given below calculate ?
For a reversible exothermic elementary catalytic reaction of the type A B, what is the optimum operating reaction temperature at a conversion level , xa = 0.8 given- K1 = exp ( 10 -5000/T) K2 = exp ( 40 - 15000 /T) and maximum allowable temperatu..
Determine the force applied to the plunger by the electric system.
Figure shows the tensile engineering stress-strain behavior for a steel alloy. (a) What is the modulus of elasticity?
A three-phase, 600-kVA, 2300:230-V, Y-Y transformer bank has an iron loss of 4400 W and a full load copper loss of 7600 W. Find the efficiency of the transformer for 70% full load at 230 V and 0.85 power factor.
Discuss its states of operation.
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