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1. The Heat-Master is a new heat pump design that has a Carnot COP (coefficient of performance) of 15.5. However, its actual coefficient of performance is only 6.90. Determine the second law availability efficiency of this heat pump.
2. A heat pump is designed to provide 9.00 kW of heat to a small house at 20.0°C when the outside temperature is 5.00°C. The electric motor driving the heat pump draws 1.20 kW. Determine:
a. The first law thermal efficiency (i.e., COP) of the heat pump.
b. The second law availability efficiency of the heat pump.
If the 8086 execution unit calculates an effective address of 14A3H and DS contains 7000H, what physical address will the BIU produce
Transmission should occur at 9600 bits per second, with a transmit timing derived from a system clock with frequency 39.321600MHz ( 9600 4096). When the stop bit has been transmitted, the controller should set an interrupt request output. The int..
A bowling ball is placed on a coil spring. The spring constant is 400N/m. When the bowling ball is placed on the spring, the spring compresses down 0.1m. If the spring is vertical how far will the bowling ball go
What strategies are useful for managing project risk and system implementation?
Figure 19.36 shows a deterministic finite state recogniser (DFSR) for a language consisting of strings of the letters a, b, and c. Use the method of Example 19.5 to determine whether the following strings are accepted by the DFSR
A temporary fault occurs at the location in the figure. The fault impedance is 200∠80° Ω. Compute the voltage sag at the load side. Assume the end of the feeder was unloaded before the fault.
The following functions describe the oscillations in electric circuits and the vibrations of machines and structures. Plot these functions on the same plot. Because they are similar decide how best to plot and label them to avoid confusion.
Calculate the area in circular mils (CM) of wires having the following diameters: - 0.050 in, 0.016 in, 0.30 in, 0.1 cm, 0.003 ft, 0.0042 m.
Usually, transformers are designed to operate with peak flux densities just below saturation of the core material. Why would we not want to design them to operate far below the saturation point? Far above the saturation point? Assume that the vol..
A half-wave dipole antenna has an input impedance Zant = 73.2 + j42.5 ohms. Design an open-ended shunt stub matching network to match this antenna to a 50ohm line.
a 15 uF capacitor is charged to 40 V and then connected across aninitially uncharged 25 uF capacitor. What is the final potential difference across the 25 uF capacitor.
Referring to the network of given figure, is Va = 8.8 V the correct reading for the given configuration?- If not, which element has been connected incorrectly in the network?
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