1st law for opened system (1)
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 […]
Clausius_Clapeyron (1)
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 […]
Ideal Gas Law (1)
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 […]
Exergy loss_Throttling Process
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. […]
Entropy change_air mixing
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 […]
Nozzle and Diffuser (Exercise1)
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 […]
Isentropic Process (1)
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 […]
Entropy_Production gas mixing
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 […]
Düse (Aufgabe 1)
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 […]
Dieselmotor (Aufgabe 1)
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 […]
Thermodynamics for Engineer 