# Chapter 5 Mass And Energy Analysis Of Control Volumes Pdf

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## Chapter 4 Mass and Energy Analysis of Control Volumes (Open Systems)

We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you! Published by Jesse Works Modified over 5 years ago. In addition to the heat transfer and work crossing the system boundaries, mass carries energy with it as it crosses the system boundaries. Thus, the mass and energy content of the open system may change when mass enters or leaves the control volume.

Apply the conservation of mass principle to various systems including steady- and unsteady-flow control volumes. Apply the first law of thermodynamics as the statement of the conservation of energy principle to control volumes. Identify the energy carried by a fluid stream crossing a control surface as the sum of internal energy, flow work, kinetic energy, and potential energy of the fluid and to relate the combination of the internal energy and the flow work to the property enthalpy. Solve energy balance problems for steady-flow devices such as nozzles, compressors, turbines, throttling valves, mixers, heaters, and heat exchangers. Apply the energy balance to general unsteady-flow processes with particular emphasis on the uniform-flow process as the model for commonly encountered charging and discharging processes.

## CHAPTER-5 Mass and Energy Analysis of Control Volumes

Views 4 Downloads 0 File size KB. The tank discharges to. The ex. A closed system of mass 2 kg undergoes an adiabatic process. The work done on the system is 30 kJ. The velocity of th.

Energy and exergy analysis of particle dispersed latent heat storage system 14 1. University buildings in Greece: Energy analysis of heating and cooling demand 10 0. Energy efficiency and cost analysis of canola production in different farm sizes 8 0. Evaluation of different weather files on energy analysis of buildings 14 0. Chapter 6 transitions and energy dissipators docx 23 0. In this chapter, we extend the energy analysis to systems that involve mass flow across their boundaries i. We start this chapter with the development of the general conservation of mass relation for control volumes, and we continue with a discussion of flow work and the energy of fluid streams.

Control volumes: Mass can cross the boundaries, and so we must keep track of the amount of mass entering and leaving the control volume. Mass m and energy E.

## Chapter 5: Mass and Energy Analysis of Control Volumes

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We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you! Published by Willow Longstreet Modified over 5 years ago.

Closed systems: The mass of the system remain constant during a process. Control volumes: Mass can cross the boundaries, and so we must keep track of the amount of mass entering and leaving the control volume. Conservation of Mass Principle The conservation of mass principle for a control volume: The net mass transfer to or from a control volume during a time interval t is equal to the net change increase or decrease in the total mass within the control volume during t. General conservation of mass in rate form Conservation of mass principle for an ordinary bathtub. For steady-flow processes, we are interested in the amount of mass flowing per unit time, that is, the mass flow rate.

If we divide through by the mass flow and set the inlet of the control volume as station 1, and the outlet as station 2, then. It is also more convenient to divide the work into two terms: 1 the flow work done by the system which is p 2 v 2 -p 1 v 1 , and 2 any additional work which we will term external work or shaft work , w s. Then we have. Enthalpy is most useful for separating flow work from external work as might be produced by a shaft crossing the control volume boundary for instance. In the figure shown below.

Closed systems: The mass of the system remain constant during a process. Control volumes: Mass can cross the boundaries, and so we must keep track of the amount of mass entering and leaving the control volume. Conservation of Mass Principle The conservation of mass principle for a control volume: The net mass transfer to or from a control volume during a time interval t is equal to the net change increase or decrease in the total mass within the control volume during t. General conservation of mass in rate form Conservation of mass principle for an ordinary bathtub.

Closed systems: The mass of the system remain constant during a process. Control volumes: Mass can cross the boundaries, and so we must keep track of the amount of mass entering and leaving the control volume. Conservation of Mass Principle The conservation of mass principle for a control volume: The net mass transfer to or from a control volume during a time interval t is equal to the net change increase or decrease in the total mass within the control volume during t.

И в тот же миг ей открылась ужасающая правда: Грег Хейл вовсе не заперт внизу - он здесь, в Третьем узле. Он успел выскользнуть до того, как Стратмор захлопнул крышку люка, и ему хватило сил самому открыть двери. Сьюзан приходилось слышать, что сильный страх парализует тело, - теперь она в этом убедилась. Ее мозг мгновенно осознал происходящее, и она, вновь обретя способность двигаться, попятилась назад в темноте с одной только мыслью - бежать. И сразу же услышала треск.

Фонтейн вздохнул и обхватил голову руками. Взгляд его черных глаз стал тяжелым и неподвижным. Возвращение домой оказалось долгим и слишком утомительным. Последний месяц был для Лиланда Фонтейна временем больших ожиданий: в агентстве происходило нечто такое, что могло изменить ход истории, и, как это ни странно директор Фонтейн узнал об этом лишь случайно. Три месяца назад до Фонтейна дошли слухи о том, что от Стратмора уходит жена.

Остановка поисков ключа Цифровой крепости высвободила бы достаточно энергии для срабатывания дверных замков. - Успокойся, Сьюзан, - сказал Стратмор, положив руку ей на плечо. Это умиротворяющее прикосновение вывело Сьюзан из оцепенения.

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Mass and Energy Analysis of Control Volumes. MAE Chapter 5. • Develop the conservation of mass principle. • Apply the conservation of mass principle to.

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