Loads in a scaled, model bin subjected to cyclic ambient temperature

Y. Li, V. M. Puri, H. B. Manbeck

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Abstract

Thermally induced loads on bin walls were measured by conducting tests on a model bin. The model bin was filled with wheat and was subjected to three complete temperature cycles with an amplitude of 10°C and a nominal rate of decrease and increase of 10°C/h. The mean thermal pressure coefficient was 0.22 kPa/°C for the temperature decreasing mode in the first cycle, and ranged from 0.36 to 0.41 kPa/°C for the rest of the increasing and decreasing temperature modes in all cycles. Comparison with the preceding cycle indicated that the thermal pressure coefficient increased with cycle number by 63.6% and 5.5% during the temperature decreasing mode, and by 5.2% and 2.5% during the temperature increasing mode. Comparison within the same cycle indicated that the thermal pressure coefficient for the temperature increasing mode was 72.7%, 11.1%, and 7.8% higher than the values for temperature decreasing mode in the first, second and third cycles, respectively.

Original languageEnglish (US)
Pages (from-to)651-656
Number of pages6
JournalTransactions of the American Society of Agricultural Engineers
Volume33
Issue number2
StatePublished - Mar 1 1990

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)

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