Thermodynamics for Engineer

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  • Ideal gas law
    • Gas constant R
  • 1st Law of Thermodynamics
    • Work and Basic Energy form
      • Work for volume change
    • Internal Energy and Enthalpy
      • Specific Heat c
      • Internal Energy U
    • Energy Balance For Closed System
    • Engineering Devices of Steady Flow
      • Turbine and Compressor
      • Nozzle and Diffuser
  • 2nd Law of Thermodynamics
    • Thermal Efficiency
    • Carnot Cycle
      • Carnot Cycle
      • Reversed Carnot Cycle
      • Carnot Principles
    • Clausius Inequality
    • Entropy
      • Definition of Entropy
      • Isentropic Relations
      • The Entropy Change of Ideal Gases
      • The Increase of Entropy Change
  • Thermodynamic Relations
    • Maxwell Relation
    • Clausius-Clapeyron-Equation
    • Internal Energy Changes
    • Enthalpy Changes
    • Entropy Changes
  • Gas Mixtures
    • Mass and Mole fraction
    • Dalton’s Law
    • Caloric Properties of Mixture
  • Humid Air
  • Gas Power Cycles
    • Diesel Cycle
    • Gas Turbine
  • Vapour Power Cycles
    • Clausius-Rankine Process
  • Refrigeration Cycles
  • Gas Dynamics
    • Relation: Velocity and Denstiy
  • Exercises/ Übungen

1st law for opened system (1)

September 23, 2013by thermodynamicsengineer

download the exercise: 1st law for opened system An insulated rigid tank is initially evacuated. A valve is opened in order that air at 1 MPa and 298K can flow […]

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exercises 1st Law

Clausius_Clapeyron (1)

September 10, 2013by thermodynamicsengineer

download the exercise with solution: Clausius Clapeyron Equation Please determine the boiling temperature of water at pressure 0.1 bar, if it is 184°C at 10 bar? Assume that the specific […]

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Exercises Thermo Relatoin

Ideal Gas Law (1)

August 4, 2013by thermodynamicsengineer

download the exercise with solution: ideal gas law A bottle with volume 3 m3 is filled with oxygen gas. Its temperature is 20°C and pressure equals 1.45 bar. The molar […]

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exercises Ideal Gas Law

Exergy loss_Throttling Process

July 1, 2013by thermodynamicsengineer

download the exercise with solution: Exergy loss_ Throttling Process An airflow of 5 g/s is throttled adiabatically to ambient pressure (pa=1bar). The air enters the throttling at the pressure p1. […]

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Exercises 2nd law

Entropy change_air mixing

July 1, 2013by thermodynamicsengineer

download the exercise with solution: Air Mixing A well-insulated rigid tank is divided into part A and part B through a partition, as shown in figure. Initially, side A of […]

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Exercises 2nd law

Nozzle and Diffuser (Exercise1)

June 27, 2013by thermodynamicsengineer

Download the exercise with solution: Nozzle and Diffuser Air flows through an adiabatic and horizontal placed pipe with changeable cross section. At the inlet side air flows with velocity cin=10 […]

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Exercises 2nd law

Isentropic Process (1)

May 14, 2013by thermodynamicsengineer

download the exercise with solution: isentropic process 1 A cylinder is enclosed by a piston and filled with 3.2 kg air. The air inside the cylinder is compressed isentropically from […]

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exercises 1st Law

Entropy_Production gas mixing

May 10, 2013by thermodynamicsengineer

download the exercise with solution: entropy production gas mixing Two well-insulated rigid tanks A and B have the same volume (VA=VB=1 m3 ) and both are filled with air with the […]

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Exercises 2nd law

Düse (Aufgabe 1)

January 2, 2013by thermodynamicsengineer

Aufgabe mit Lösungsweg runterladen: Düse (Aufgabe 1) Durch eine wärmeisolierte, waagrecht liegende Düse strömt Luft stationär. Die Luft strömt in die Düse bei Umgebungszustand (pU=1bar, ϑU=25°C) mit einer Geschwindigkeit von […]

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Übungen 1.Hauptsatz

Dieselmotor (Aufgabe 1)

December 5, 2012by thermodynamicsengineer

Aufgabe mit Lösungsweg runterladen: Dieselmotor Ein Dieselmotor kann durch einen reversiblen Kreisprozess näherungsweise vereinfacht werden. Das Arbeitsgas, Luft, wird als perfektes Gas angenommen. Gegeben sind der Anfangszustand 1 den Umgebungszustand […]

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Übungen Maschinenprozesse (Gas)

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New Exercises

  • 1st law for opened system (1)
  • Clausius_Clapeyron (1)
  • Ideal Gas Law (1)

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