Accumulation of Mass
The diagram below shows a
uniform-flow processin which mass flows into and out of a system.
Consider the process for an interval of time from t1 to t2, where t2 > t1.
At t1 the mass in the system is: msys(t1).
At t2 the mass in the system is: msys(t2).
If the inlet mass flow rate, , is greater than the outlet mass flow rate, , then mass accumulates within the system: msys(t2) > msys(t1).
If the outlet mass flow rate, , is greater than the inlet mass flow rate, , then the mass within the system decreases: msys(t2) > msys(t1).
Confused and have questions? We've got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.
© B-Cubed, 2003, 2005, 2006, 2014, 2018. All rights reserved.
Roll your mouse over this box to close.
Join Learn Thermodynamics Advantage
- Download Data Tables
- Download Study Aids
- Homework problem hints and answers
- Get Help from Dr. B in the LT Blog
- 120 day membership
Get it ALL for $5 US