What is the ideal CA50 location for SI engine?

10 October 2018 1 390 Report

CA 50 - 50% burn (crank angle) from a 'rate of heat release vs crank angle' curve for a given engine

https://www.researchgate.net/post/How_can_I_calculate_50_burn_crank_angle_from_a_rate_of_heat_release_vs_crank_angle_curve_for_a_given_engine

Duan Xiongbo

CA 50 - 50% burn (crank angle) is ideally located at 8-12 aTDC in order to obtain high brake thermal efficiency.

Badges
Science topic

Similar topics
Heat

More Jubin V Jose's questions See All

GDI engine injection duration, injection quantity and rail pressure?

Dear all Can anyone provide me the details of fuel injection duration, injection quantity and rail pressure at which a GDI engine operates at full load, part load and idling conditions. I am in...

06 July 2018 7,126 0 View

Increase in fuel temperature before injection in GDI?

Dear all I wish to know what is the rise in temperature of the fuel compared to the ambient temperature once it leaves the fuel injector nozzle in GDI. The temperature increase can be due to...

06 July 2018 4,895 1 View

Radar sensors availability?

Dear all I wish to know whether any one is working on Radar system for autonomous vehicles. I wish to know who is the supplier of the same. I need only a few systems. Can i get any system that...

02 March 2018 5,198 5 View

Basics of internal combustion engines?

Beginners can use this for understanding the basics. http://www.iitg.ernet.in/scifac/qip/public_html/cd_cell/internal_combusn_engines.htm

02 March 2018 2,914 0 View

Earth core is it a future energy source? Solution for all energy crisis! ?

We all know that earth core is at very high temperature. Is it possible to extract that energy out from there? Geothermal as of now the technology is not well mature enough as per my opinion....

01 February 2018 4,394 4 View

Can vibration induce turbulence in a laminar flow?

I read in one fluid dynamics text that flow can remain laminar even up to 8000 to 10000 Reynolds number when it flow through a pipe. If the medium is undisturbed and surface is smooth enough. So i...

01 February 2018 8,653 22 View

Can anyone suggest good papers or books on in-cylinder flow in IC Engines?

I wish know in detail about 1. In cylinder turbulence pros and cons. 2. Effect of tumble. 3. How to analyze the vortices formed and its effect? 4. Velocity vectors and its importance. 5. Flow...

01 February 2018 6,574 0 View

Turbulent kinetic energy in IC Engines?

Hai can anyone suggest me a simple and good book/paper that can give me more insight into turbulent kinetic energy in IC engine related studies.

31 December 2017 3,653 2 View

Reason for higher stability or lower COV of CI engine compared to SI engine?

CI engine use to give stable torque output and lower cylinder to cylinder variation. Can anyone suggest me reasons for the same.

31 December 2017 8,427 2 View

How to avoid signal interference in forward collision control system?

We will be having cars with forward looking radar or ultrasonic sensors which will look for obstacles in a car. If two signals from 2 cars interfere and if it result in wrong estimation of value...

31 December 2017 615 3 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

Trouble with Charting with Google Earth Engine (Technical)?

Hello. I have a problem with the charting in google earth engine. I created an image collection by combining 5 image collections of five parameters and using ee.Join.inner ( ) and .apply ( )...

26 February 2021 7,084 2 View

Anyone that can help with Maxquant TMT16plex which is missing?

Hi I am very new to proteomics analysis. I have got raw files from core facility running thermofisher TMT 16plex 4 hours. I cannot find on maxquant the option TMT16Plex there is only up to 11...

25 February 2021 1,675 3 View

How to properly calculate the fluid solid heat transfer between polypropylene matrix and glass fiber in a porous medium?

I'm building a cfx model of thermoplastic pultrusion process on ansys and i have a doubt on how is the proper way to set this parameter in a porous medium

24 February 2021 1,915 1 View

How to properly calculate Interfacial area density in a porous domain?which are possible value for glass fiber?

I'm doing a cfx simulation of a multiphase flow in pultrusion and i set the Interfacial Area density in the heat exchange of a porous medium in this way IAD=Total fiber lateral surface of fiber...

23 February 2021 6,043 1 View

Model Volume fraction and magnetic field applications of nanofluids in ANSYS?

Hi I am working recently on a project where I have to study how the thermal properties or heat transfer enhancement of nanofluids as the volume fraction changes, or if a magnetic field is applied...

22 February 2021 961 2 View