Copyright © 1998-2020 engineering.com, Inc. All rights reserved.Unauthorized reproduction or linking forbidden without expressed written permission. Click Here to join Eng-Tips and talk with other members! The reason I thought it was relevant was that it gave real numbers for the proportion of the energy going into the coolant, which I thought was probably a handy number if you are designing a radiator. Please let us know here why this post is inappropriate. To get overall thickness measure the tank thickness only. Equation for Calculating Car Radiator Size. Getting the Overall Radiator size. Radiators are normally sized to achieve steady state cooling at maximum torque, but this is not very realistic unless you are towing. Regardspat pprimmer@acay.com.aueng-tips, by professional engineers for professional engineersPlease see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora. Just thought that if cymeryss didn't really know anything about engines, then knowing % heat rejection to coolant for a modern engine may be of use. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.The Eng-Tips staff will check this out and take appropriate action. need to be addressed. Keeping our warfighters safe and delivering them a competitive advantage is a key goal of departments of defense around the world. Just go and look at a similar sized car with a similar sized engine. For example, lets take a 200hp, turbocharged engine, 1.8L, 4cyl motor. First of all what would be a good assumption for how much heat is dissipated to the coolant from the IC engine. As you can see, heat to coolant is nearer 1/4 of ouput power. I know there are lots of variables in this problem such as the coolant flow rate, air speed, radiator heat transfer coefficient, etc, and detailed analysis would be needed to properly size the radiator. It’s a goal shared by embedded computing manufacturers like Abaco: we never forget who we serve.This case study describes how a major international contractor integrated an Abaco single board computer at the heart of its CAS/CSAR solution. There are a few things to consider before we single out the radiator as a cause of the cooling issue. It have to fit into the 29 shell so that size is maximum. Autospeed (. Now, at steady state, are radiators sized to cope with this condition or some precentage of that? Example, I've taken a csb 350 from a corvette and want to use it on my model a. Start with 2 cubic inches of core for every cubic inch of engine. With Creo 7.0, you will be able to design the most innovative products faster than ever before, keeping you on the cutting edge of product design and ahead of your competition. I am looking basically for a worst case scenario. Registration on or use of this site constitutes acceptance of our Privacy Policy. Just go and look at a similar sized car with a similar sized engine. Core Height: This dimension is always measured in the direction from top to bottom, from the sky to the ground, as shown in both diagrams above. Thanks for reading. Already a member? How to calculate radiator size? (engineers have all ready solved the problem for you) What size radiator is in there? Solutions Brief - Protecting and Rescuing On-Ground Personnel, White Paper - Cobots vs Covid: Today's Manufacturing Reality and Tomorrow's New Normal, Datasheet - Creo Generative Topology Optimization Extension. Real-world case studies are provided. What is a typical heat transfer coefficient, U for an automotive radiator of average size 3.0L? Water cooled cars with radiators have been in existance for over 100 years. The remainder of your cooling system and engine should be in proper working condition; meaning the appropriate pulley ratios adequate airflow, proper thermostat, correct ignition timing, air/fuel ratio, vacuum and mechanical advance curves, etc. t Measure height of section t Measure width of section t Find square feet of section in Chart # 1 for COLUMN or Chart # 2 for TUBE type radiator Step #2. Rapidly explore innovative design options to reduce development time and expense, all within the Creo design environment. MEASURE ONLY THE CORE to determine the size of the radiator. As I read, that would be about 1/3 of total power, which assuming 1/4 only goes down to the groud, that would mean almost 200kW gets transfered to the coolant. Before you measure a radiator, make sure it is in the upright position. Already a Member? This is great info and definitely very insightful information which I was exactly looking for. Please note that when measuring your radiator that you don't incude the filer neck or any mounting brackets/ hardware. From what I understand the Davies Craig water pump has some problems. Close this window and log in. When in comes to Davies Craig electric pumps, I was going to use one on my project, but the head pressure on the pump is really low, and just did not suit my application. 2. andyv8 (Automotive) 27 Apr 04 05:35. There's your answer. You really don't have to reinvent/redesign the wheel. To start would two flow conditions be sufficient, for example at idle, and at max power output, in order to size the radiator? The Corvette rad is way to big to fit into the 29 rad shell so i have to use another one.. No, But I think I saw somewhere that they are supplied to Jaguar as OEM on at least one model. Increase or decrease that value by the following factors: ADD. You will be measuring the core only. When getting overall measurements its from "Tank to Tank" and "Band to Band". Hello, Is there any way to calculate how big the radiator must be? There are formulas to determine appropriate radiator size based on engine heat output (operating BTU's) and radiator heat-transfer rates (also stated in BTU's). *Eng-Tips's functionality depends on members receiving e-mail. Does anybody know what is a typical pressure drop through an average size engine, such as a 3.0L V6? Login. There's your answer. Thanks a lot Andy. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Only the core is measured to determine the height of the radiator, do not include the side rails. Multiply the square feet of the one section by the number of sections. Step #1. For a high output n/a 3.0L V6, here's a heat balance (based on dyno data). Measure only the core to determine the size of the radiator. Andyv8's post is relevant and I gave it a star. I am aware that this is a very broad question, but was wondering if there is an approximate method to evaluating a needed radiator size? The core is the central part of the radiator (between the tanks and the side-pieces) and consists of parallel rows of tubes and fins. PTC's Creo 7.0 has breakthrough innovations in the areas of generative design, real-time simulation, multibody design, additive manufacturing, and more! Join your peers on the Internet's largest technical engineering professional community.It's easy to join and it's free. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Chumley . A. Water cooled cars with radiators have been in existance for over 100 years. Calculate the square footage of one section of the radiator. (Thanks for the star Greg !). Didn't measure the pressure drops, but flow rates were as follows for the V6: Hey, all my thanks to you Andy. (engineers have all ready solved the problem for you) What size radiator is in there? I don't know what the problem with the pump was, but maybe because of fouling the flow rates are reduced and that is what causes them not to perform. It might be a rumour, as I cannot recall the source of the info. By joining you are opting in to receive e-mail. I found it very dificlut to find any information, data, U, effectiveness, etc on automotive radiators, if anybody can provide me with a good source, website, book for this type of data that would be great.
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