<rss version="2.0" xmlns:atom="https://www.w3.org/2005/Atom">
  <channel>
    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
    <description></description>
    <language>en-us</language>
    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
    </image>
    <item>
      <title>HEAT TRANSMISSION PHENOMENA IN REFRIGERATED VANS. VARIOUS METHODS USED FOR MEASURING THE HEAT TRANSMISSION COEFFICIENT K</title>
      <link>https://trid.trb.org/View/15328</link>
      <description><![CDATA[In 1962, the B77 Specialists Committee drew up a programme of work, visualizing three series of tests to be conducted in the Vienna-Arsenal test stations and at the Experimental Institute in Rome.  The object of these tests is to compare the methods applying internal heating and internal cooling, while determining for each of these the influence of the fundamental parameters involved in the measurement of the coefficient K.  The first Interim Report forming the subject of the following test contains a description of the procedures used by each of the test stations and the error committed during the measurement of the coefficient K according to the procedure applied.  The tests on the internal cooling method were conducted by the Vienna-Arsenal test stations and by the Experimental Institute in Rome according to a procedure peculiar to each of them. Including all the precautions taken, the measuring errors are 8.7 and 9.7% respectively at a limit of 10% authorized by the Agreement.  The error is 3.2% for the method applying internal heating while using comparable measuring instruments.  Though therefore the method of internal cooling has been retained by the Agreement of the Economic Commission for Europe owing to certain advantages which it affords, it nevertheless presents some difficulties: need for a more complex equipment and for a very careful measuring process enabling adequate precision to be achieved and which, in spite of this, continues to be of a practical nature.]]></description>
      <pubDate>Fri, 08 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/15328</guid>
    </item>
    <item>
      <title>HEAT TRANSMISSION PHENOMENA IN REFRIGERATOR WAGONS. RECOMMENDED METHOD FOR THE MEASUREMENT OF THE K VALUE OF REFRIGERATOR WAGONS</title>
      <link>https://trid.trb.org/View/15329</link>
      <description><![CDATA[In 1962, the B77 Specialists Committee drew up a Programme of Work, visualizing three series of tests to be conducted in the Vienna-Arsenal testing station and at the Experimental Institute in Rome.  The object of these tests was to compare the methods applying internal heating and internal cooling, while determining for each of these the influence of the fundamental parameters involved in the measurement of the coefficient K.  The first Interim Report dated June 1964 described various methods used for measuring the heat transfer coefficient K of insulated and refrigerator vans and explains, on one hand, the maximum error committed in the measurement of this coefficient according to the method used and, on the other hand, the difficulties presented by the method of inner cooling, recommended by the ECE due to certain advantages which cannot yet be defined in a precise manner.  With this in mind, the second Interim Report, (this report) describes the method which is considered the most practical, for measuring with sufficient accuracy the coefficient K of insulated and refrigerator vans by the method of inner cooling.  It deals with three methods used for measuring the heat transmission coefficient K of insulated and refrigerator vans by the method of inner cooling and describes the precautions that must be taken in each case. The method of the cooling group placed inside the van is recommended as the best method because it is the most practical and the most accurate.]]></description>
      <pubDate>Fri, 08 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/15329</guid>
    </item>
    <item>
      <title>HEAT TRANSMISSION PHENOMENA IN REFRIGERATOR VANS. THE EFFECT OF PHYSICAL AND PARASITIC FACTORS ON THE K VALUE</title>
      <link>https://trid.trb.org/View/15330</link>
      <description><![CDATA[Since 1962, the B77 Specialist Committee has conducted a series of tests in the Vienna Arsenal Testing Station and at the Experimental Institute of the FS in Rome.  The object of these tests was to compare the methods applying inner heating and cooling, while determining for each, the influence of the fundamental parameters involved in the measurement of the coefficient K.  A third report has now been compiled (the present), in which the influence of the various physical and parasitic phenomena which occur in the determination of the coefficient K, are examined. The report gives a detailed account of the tests to ascertain the effect of physical and parasitic factors on the measurement of the k-value.  Three significant parameters were specified, namely, the mean wall temperature of the insulation, moisture in the insulation, and the influence of the relative air speed.  Certain rules must be observed when measuring the k-value to avoid serious errors.  Report No. 3 concludes by comparing the two fundamental methods of measurement, inner heating and inner cooling, which will give approximately similar results when correctly applied during static tests (v = 4 km/h) and when certain rules are observed.  It has been found that the inner heating method is simpler and more accurate, and that of inner cooling generally cheaper.]]></description>
      <pubDate>Tue, 13 Jul 1976 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/15330</guid>
    </item>
    <item>
      <title>HEAT TRANSMISSION PHENOMENA IN REFRIGERATOR VANS. SHORTENED METHODS FOR THE DETERMINATION OF THE K-VALUE</title>
      <link>https://trid.trb.org/View/15331</link>
      <description><![CDATA[Since 1962, the B77 Specialist Committee has conducted a series of tests in the Vienna Arsenal Testing Station and at the Experimental Institute in Rome.  The objective of these tests was to compare the methods applying inner heating and cooling, while determining for each, the influence of the fundamental parameters involved in the measurement of the coefficient k.]]></description>
      <pubDate>Tue, 13 Jul 1976 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/15331</guid>
    </item>
  </channel>
</rss>