1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2008 SAE International All rights reserved. No part of this publication ma
3、y be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA)
4、Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgJ1597 AUG2008 SURFACEVEHICLERECOMMENDEDPRACTICEIssued 1988-07Revised 2008-08 Superseding J1597 FEB1999 Laboratory Testing of Vehicle and Industrial Heat Exchangers for Pressure-Cycle Durability RATIONALEThis document h
5、as been updated to Word format and corrections as needed have been made to spelling, punctuation, and grammar. There have been no technical changes to the document. 1. SCOPE This SAE Recommended Practice is applicable to all liquid-to-gas, liquid-to-liquid, gas-to-gas, and gas-to-liquid heat exchang
6、ers used in vehicle and industrial cooling systems. This document outlines the tests to determine durability characteristics of the heat exchanger under pressure cycling. 1.1 Purpose This document provides a test guideline for determining the durability of a heat exchanger under specified pressure-c
7、ycle conditions.2. REFERENCES The following publications form a part of this specification to the extent specified herein. Unless otherwise specified, the latest issue of SAE publications shall apply. 2.1 Applicable Publications 2.1.1 SAE Publications Available from SAE International, 400 Commonweal
8、th Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.SAE J1542 Laboratory Testing of Vehicle and Industrial Heat Exchangers for Thermal Cycle Durability SAE J1598 Laboratory Testing of Vehicle and Industrial Heat Exchangers for Dur
9、ability Under Vibration-Induced LoadingCopyright SAE International Provided by IHS under license with SAENot for Resale-,-,-SAE J1597 Revised AUG2008 - 2 -3. OBJECTIVE To verify compliance with established criteria that insures durability in a specific application. This document describes a system t
10、o induce stresses in a heat exchanger resulting from specified pressure variations. The process is accomplished by varying the pressure in the unit at a specified frequency and temperature. 4. FACILITY REQUIREMENT The facility should provide the following as required: 4.1 Source of pressurized fluid
11、 at specified temperature and pressure range. 4.2 Means of moving these fluids to and from the test unit in a specified manner. 4.3 Means of checking heat exchange integrity. 4.4 A system adequate to control the pressure cycle as specified. It may include but not be limited to the following: a. Auto
12、matic data logging equipment b. Automatic emergency shutdowns c. Electrical relays, timers, switches, indicator lights, and related items as required d. Flow measuring devices e. Fluid filters f. Heaters and controls g. Leak detector h. Pressure cycle counters i. Pressure gauges j. Pressure regulato
13、rs for each fluid k. Pressure switches l. Pumps m. Relief and back pressure regulators n. Safety features as specified by regulatory codes and common practices o. Tanks p. Temperature indicators See Figure 1 for typical control system as reference. Copyright SAE International Provided by IHS under l
14、icense with SAENot for Resale-,-,-SAE J1597 Revised AUG2008 - 3 -5. TESTING 5.1 Test heat exchanger for integrity. 5.2 Install test unit as specified (orientation as in service) in a safe manner. 5.3 Set up control system to obtain the specified pressure cycle (see Figure 2 for typical pressure cycl
15、e). 5.3.1 High pressure and pressure range to be specified based on specific application. High pressure and pressure range to be at least equal to or greater than normal operating conditions. CAUTION: Pressures exceeding specified value can cause significant structural damage which will invalidate t
16、he test results. The system shall be capable of maintaining this pressure within 5% absolute pressure unless otherwise specified and should be measured within or as near the test unit as possible. 5.3.2 High- and low-pressure dwell, and rate of pressure change, are to be as specified. 5.3.3 Fluid te
17、mperature to be as specified and controlled within 1% absolute temperature unless otherwise specified. The specified temperature should be near the maximum value expected in service. 5.4 Run test to specified cycle duration or heat exchanger failure. 5.5 Remove and test heat exchanger for leaks and
18、structural damage. Copyright SAE International Provided by IHS under license with SAENot for Resale-,-,-SAE J1597 Revised AUG2008 - 4 -FIGURE 1 - TYPICAL CONTROL SYSTEM Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without lic
19、ense from IHSSAE J1597 Revised AUG2008 - 5 -FIGURE 2 - TYPICAL PRESSURE CYCLE Copyright SAE International Provided by IHS under license with SAENot for Resale-,-,-SAE J1597 Revised AUG2008 - 6 -6. TEST DOCUMENTATION 6.1 During and after the test, document leakage rate and location(s) at specified pr
20、essure (gage or absolute) and compare to acceptance criteria. 6.2 Document the following: a. Condition of unit prior to test (new or previous history) b. Unit Orientation (Reference to 5.2) c. Pressure Range (Reference to 5.3.1) d. High Pressure (Reference to 5.3.1) e. Frequency, Pressure Dwell, Hig
21、h and Low, Rate of Pressure Change (Reference to 5.3.2) f. Fluid Temp Cycles to Completion (Reference to 5.4) g. Number of Cycles to Completion (Reference to 5.4) h. Location of Leaks and Structural Damage (Reference to 5.5) i. If testing is continuous or in block units 7. This document is valid for
22、 durability comparison of pressure-cycle conditions only. Correlation to field results must be developed on an individual basis. Other tests affecting heat exchanger durability are SAE J1542 (Thermal Cycle) and SAE J1598 (Vibration). These tests can be run in combination as well as independently. NO
23、TE: Combination testing may make it difficult to determine cause of failure. 8. NOTES 8.1 Marginal Indicia A change bar (I) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this d
24、ocument. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE COOLING SYSTEMS STANDARDS COMMITTEE Copyright SAE International Provided by IHS under license with SAENot for Resale-,-,-
