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KMID : 0356219920230010013
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Journal of the Korean Military Medical Association
1992 Volume.23 No. 1 p.13 ~ p.19
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Survey of Wet-bulb Globe Temperature(WBGT)Index by R. O. K. Navy War-ships
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Abstract
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The author measured wet-bulb, globe, and dry-bulb thermometer temperatures of the 5 R. O. K. Navy ships(LSM, MSC, LST, MHC, PGK) to construct the wet-bulb globe temperature inex(WBGT) suing August Stand Psychometer a
nd 6-inch globe thermometer 1.2
meter
above ground from August 14 to September 16 in 1991. The compartments surveyed were operation room, deck, galley and engine room and measured 5 times(08, 10, 12, 14, 16 hours) a day. The temperatures were measured after allowing about 15 minutes
to
stabilize in one stand. K values of WBGT index were 0.7 for outdoors and 1.0 for indoors. The WBGT indices of operation rooms were well below 27.8℃which is the criteria for the moderate level of work for the threshold WBGT values for the hottest
2-hour
period of a day except for 27.8℃of 14 hour in MSC. Those of decks were above 27.8℃during most of the measureent times in MSC, LSM and MHC. High WBGT indices were noted in all of the 5 ships showing above 30℃during one of the measurement times
at
least during the day which is the criteria for the light work level. Especially the MSC and MHC showed more than 30℃during most of the measurement times. Overall the WBGT indices of galleys were higher than those of operation rooms and well
above
27.8℃ in most of the ships, particularly MSC showing above 30℃during most of the day from 10 to 16 hours. Two peaks were noted in most of the ships' galleys at 12and 16 hours.
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