Ram Efficiency Solution

STEP 0: Pre-Calculation Summary
Formula Used
Ram Efficiency = (Stagnation Pressure of System-Initial Pressure of System)/(Final Pressure of System-Initial Pressure of System)
η = (p2'-Pi)/(Pf-Pi)
This formula uses 4 Variables
Variables Used
Ram Efficiency - Ram efficiency is defined as the ratio of the actual rise in pressure and isentropic rise in static pressure.
Stagnation Pressure of System - (Measured in Pascal) - Stagnation Pressure of System is the pressure at the stagnation temperature during the process of ramming.
Initial Pressure of System - (Measured in Pascal) - Initial Pressure of System is the total initial pressure exerted by the molecules inside the system.
Final Pressure of System - (Measured in Pascal) - Final Pressure of System is the total final pressure exerted by the molecules inside the system.
STEP 1: Convert Input(s) to Base Unit
Stagnation Pressure of System: 150000 Pascal --> 150000 Pascal No Conversion Required
Initial Pressure of System: 85000 Pascal --> 85000 Pascal No Conversion Required
Final Pressure of System: 160000 Pascal --> 160000 Pascal No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
η = (p2'-Pi)/(Pf-Pi) --> (150000-85000)/(160000-85000)
Evaluating ... ...
η = 0.866666666666667
STEP 3: Convert Result to Output's Unit
0.866666666666667 --> No Conversion Required
FINAL ANSWER
0.866666666666667 <-- Ram Efficiency
(Calculation completed in 00.015 seconds)

Credits

Created by Rushi Shah
K J Somaiya College of Engineering (K J Somaiya), Mumbai
Rushi Shah has created this Calculator and 25+ more calculators!
Birla Institute of Technology & Science (BITS), Hyderabad
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Ram Efficiency
Ram Efficiency = (Stagnation Pressure of System-Initial Pressure of System)/(Final Pressure of System-Initial Pressure of System) Go
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2 Air Refrigeration Systems Calculators

Ram Efficiency
Ram Efficiency = (Stagnation Pressure of System-Initial Pressure of System)/(Final Pressure of System-Initial Pressure of System) Go
Local Sonic or Acoustic velocity at Ambient air conditions
Sonic Velocity = (Heat Capacity Ratio*[R]*Initial Temperature/Molecular Weight)^0.5 Go

Ram Efficiency Formula

Ram Efficiency = (Stagnation Pressure of System-Initial Pressure of System)/(Final Pressure of System-Initial Pressure of System)
η = (p2'-Pi)/(Pf-Pi)

What is Ram efficiency?

Ram efficiency is defined as the ratio of the actual rise in pressure and isentropic rise in static pressure.

How to Calculate Ram Efficiency?

Ram Efficiency calculator uses Ram Efficiency = (Stagnation Pressure of System-Initial Pressure of System)/(Final Pressure of System-Initial Pressure of System) to calculate the Ram Efficiency, Ram Efficiency is defined as the isentropic pressure rise. It is defined as the ratio of actual total temperature rise to the ideal total temperature rise. Ram Efficiency is denoted by η symbol.

How to calculate Ram Efficiency using this online calculator? To use this online calculator for Ram Efficiency, enter Stagnation Pressure of System (p2'), Initial Pressure of System (Pi) & Final Pressure of System (Pf) and hit the calculate button. Here is how the Ram Efficiency calculation can be explained with given input values -> 0.866667 = (150000-85000)/(160000-85000).

FAQ

What is Ram Efficiency?
Ram Efficiency is defined as the isentropic pressure rise. It is defined as the ratio of actual total temperature rise to the ideal total temperature rise and is represented as η = (p2'-Pi)/(Pf-Pi) or Ram Efficiency = (Stagnation Pressure of System-Initial Pressure of System)/(Final Pressure of System-Initial Pressure of System). Stagnation Pressure of System is the pressure at the stagnation temperature during the process of ramming, Initial Pressure of System is the total initial pressure exerted by the molecules inside the system & Final Pressure of System is the total final pressure exerted by the molecules inside the system.
How to calculate Ram Efficiency?
Ram Efficiency is defined as the isentropic pressure rise. It is defined as the ratio of actual total temperature rise to the ideal total temperature rise is calculated using Ram Efficiency = (Stagnation Pressure of System-Initial Pressure of System)/(Final Pressure of System-Initial Pressure of System). To calculate Ram Efficiency, you need Stagnation Pressure of System (p2'), Initial Pressure of System (Pi) & Final Pressure of System (Pf). With our tool, you need to enter the respective value for Stagnation Pressure of System, Initial Pressure of System & Final Pressure of System and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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