Find the motor size needed to provide the forced draft service to a boiler that burns coal at the rate of 10 tons per hour. The air requirements are 59,000 cfm, air is being provided under 6 in water gage by the fan which has a mechanical efficiency of 60 percent.

Find the motor size needed to provide the forced draft service to a boiler that burns coal at the rate of 10 tons per hour. The air requirements are 59,000 cfm, air is being provided under 6 in water gage by the fan which has a mechanical efficiency of 60 percent.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter26: Applications Of Refrigeration Systems

Section: Chapter Questions

Problem 9RQ: Three disadvantages of parallel compressor systems are _____, _____, and ____.

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Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.

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Find the motor size needed to provide the forced draft service to a boiler that
burns coal at the rate of 10 tons per hour. The air requirements are 59,000 cfm,
air is being provided under 6 in water gage by the fan which has a mechanical
efficiency of 60 percent.

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