ORGANIC RANKINE CYCLE TECHNOLOGY PROGRAM. Quarterly Progress Report No. 6, July 1, 1967--October 1, 1967. Page: 43 of 62
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The reason benzene was found in this sample may
be that there was definitely an air leak in this .loop. Air
is known to;rdatlyze the degradation of biphenyl.
The most recent liquid ample from, loop 3 did not
contain any detectable amounts of benzene. A calculated value
for the maximum amount of degradation products la given in
Table 2.1.12 as determined by the method deteribed for loop 2.
Th *mount of degradation is quite'small based on
these, data. No terphenyls have been detected in any fluid
sagsp e from loop 3 to the present time,
18.104.22.168.3 LoQ_ I#4
Vapor samples have been obtained from loop 4 which
uses biphenyl as the working fluid and analyzed to produce ,
the data Sn Table 2.1.13. Hydrogen and =methane are again the
major products of thermal degradation found. Appreciable
amounts of carbon monoxide and carbon dioxide have also been
detected as indicated by the data. It is.of interest to note
that there was a marked decrease it1 hydrogen between the 200
haur and 1000 hour sample. The loop was shut down between
these two samples due to mechanical problem in the coolant
The hydrogen probably escaped from the loop
through the palladium plate during the shutdown. Other gases
could not permeate the plug and remained in the loop. The
relatively large amounts of nitrogen, carbon monoxide, and
carbon dioxide indicate there has been air in the system at
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Adam, A.W. ORGANIC RANKINE CYCLE TECHNOLOGY PROGRAM. Quarterly Progress Report No. 6, July 1, 1967--October 1, 1967., report, January 1, 1967; United States. (https://digital.library.unt.edu/ark:/67531/metadc1032622/m1/43/: accessed April 24, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.