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1. A heat engine receives 1 kW heat transfer at 1000 K and gives out 400 Was work, with the rest as heat transfer to the ambient at 25?C. What are the fluxes of exergy in and out?
2. In a refrigerator, 1 kW is removed from the -10?C cold space and 1.3 kW is moved into the 30?C warm space. Find the exergy fluxes, including the direction associated with the two heat transfers.
Your engineering consulting firm has been asked to determine the specific weight of an unknown material. You decide to use the concept of buoyancy to figure this out. So you weigh the material in both air and water.
Procedures of graphical interpolation
Why do owners prefer the design-build form of contracts when many of them know they can obtain better quality construction using other forms. What are the stages at which the designer will schedule design reviews.
a manufacturer of rat poison in texas proposes to build a circular lagoon to concentrate the arsenic in its rinse water
In the absence of motion, gravity, surface tension, electricity, and magnetism, the state of a pure substance is fixed by fixing at least:
one atmospheric air stream at 15 c and 30 percent relative humidity is mixednadiabatically with another air stream at 30c and 70 percent relative humidity in a steady flow process
Heat exchangers can be arranged in either counter current mode (where the hot and cold fluids are fed at opposite ends of the heat exchanger) or co-current mode (where the hot and cold fluids are fed at the same inlet as the heat exchanger). Sketch e..
The interior angles in a six-sided closed polygon traversewere observed as:
The cost of running this fleet is $325/hr per truck. For a given contract, a total of 2,500 tons must be removed from one construction site and moved to another location 35 miles away.
A cylindrical pressure vessel can support an internal pressure of 2640 psi. The maximum hoop stress is (65000/2) psi and the maximum shear stress is 16000 psi. If the diameter of the tank is 7 inches,what is the minimum wall thickness. If the wall th..
Place the scientific mass on the inclined plane and string over the pulley. Using a force-measuring device, pull the string and determine the force needed to obtain static equilibrium.
Describe the functions provided by a relational database that could be used to record courses taken by university students in order to manage scheduling and preparing transcripts
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