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August 18, 2016, 02:53 |
Negative Total heat flux at inlet
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#1 |
Member
Tleja
Join Date: Sep 2013
Posts: 40
Rep Power: 13 |
Hi All!
I'm not familiar in heat transfer field. I'm studying fluidized bed reactor with transient study. In my system, solid particle was patched at the bottom of reactor. Then, i continuously fed gas and solid with 343K temperature. I also initialized this system with 375K. After starting calculation, i found that total heat flux of gas and solid at feed inlet are negative value. As my understanding, total heat flux should be equal to mass flow rate*heat capacity*(T in-T ref) which is certainly positive value. i also checked that mass flow rate of gas and solid at inlet are positive value. I don't know why total heat flux is negative value at inlet. Please anyone advice me to solve this problem. Thank you so much. Best regard Tleja |
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