Calculate Nitrogen Liquefaction in Hampson-Linde Cycle
School
Northeastern University**We aren't endorsed by this school
Course
ENSY 5200
Subject
Chemistry
Date
Dec 12, 2024
Pages
3
Uploaded by CountNightingale4586
HW#5 P1.Use the enthalpy data (miniREFPROP) to calculate the fraction of nitrogen liquefied on each pass through a Hampson-Linde cycle operating between 1 bar and 100 bars, with an input temperature of 300 K. Assume that the heat exchanger works perfectly, so the temperature of the gas coming out of it is the same as the temperature of the high-pressure gas going in (Compressor works isothermally, T2=T1)Find compressor work per unit mass liquefied at this temperature.Using(miniREFPROP);
P2.Determine the Y, Ymaxthe work/unit mass compressed, work/unit mass liquefied for the: (i)Simple and (ii)Precooled Linde – Hampson systems, with Nitrogen as working fluid. The R134A is the refrigerant for the precooling system with ratio r as 0.08. The liquefaction system is operated between 1.013 bar (1 atm) and 101.3 bar (100 atm) at 300 K. The following is the data for R134a.Stateabcp (bar)1.01310.1310.13T (K) 300373300h (J/g)426.1482.9237.19The property values for Nitrogen and R134A can be calculated using the freeprogram (miniREFPROP) or any other source online (please mention the source inyour solution)Instructions to use miniREFPROP:Selectsubstance>purefluid>R134A/N2;Calculate>specifiedstatepoints/saturation pointsInput two parameters like pressure and temperature for specified state point andone parameter like pressure for saturation points
HW#5 Pre-cooled Linde-Hampson Cycle Layout