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Category > Economics Posted 23 May 2017 My Price 5.00

Solve this problem using analytical one-term approximation method

Chickens with an average mass of 1.7 kg (k = 0.45 W/m·K and α = 0.13 x 10-6 m2 /s) initially at a uniform temperature of 15°C are to be chilled in agitated brine at 27°C. The average heat transfer coefficient between the chicken and the brine is determined experimentally to be 440 W/m2 ·K. Taking the average density of the chicken to be 0.95 g/cm3 and treating the chicken as a spherical lump, determine the center and the surface temperatures of the chicken in 2 h and 45 min. Also, determine if any part of the chicken will freeze during this process. Solve this problem using analytical one-term approximation method (not the Heisler charts).

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Alpha Geek
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Status NEW Posted 23 May 2017 05:05 PM My Price 5.00

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file 1495561275-Answer.docx preview (138 words )
C-----------hic-----------ken-----------s w-----------ith----------- an----------- av-----------era-----------ge -----------mas-----------s o-----------f 1-----------.7 -----------kg -----------(k -----------= 0-----------.45----------- W/-----------m·-----------K a-----------nd -----------α -----------= 0-----------.13----------- x -----------10------------6 -----------m2Â----------- /s-----------) i-----------nit-----------ial-----------ly -----------at -----------a u-----------nif-----------orm----------- te-----------mpe-----------rat-----------ure----------- of----------- 15-----------°C----------- ar-----------e t-----------o b-----------e c-----------hil-----------led----------- in----------- ag-----------ita-----------ted----------- br-----------ine----------- at----------- 27-----------°C-----------. T-----------he -----------ave-----------rag-----------e h-----------eat----------- tr-----------ans-----------fer----------- co-----------eff-----------ici-----------ent----------- be-----------twe-----------en -----------the----------- ch-----------ick-----------en -----------and----------- th-----------e b-----------rin-----------e i-----------s d-----------ete-----------rmi-----------ned----------- ex-----------per-----------ime-----------nta-----------lly----------- to----------- be----------- 44-----------0 W-----------/m2----------- ·-----------K. -----------Tak-----------ing----------- th-----------e a-----------ver-----------age----------- de-----------nsi-----------ty -----------of -----------the----------- ch-----------ick-----------en -----------to -----------be -----------0.9-----------5 g-----------/cm-----------3 a-----------nd -----------tre-----------ati-----------ng -----------the----------- ch-----------ick-----------en -----------as -----------a s-----------phe-----------ric-----------al -----------lum-----------p, -----------det-----------erm-----------ine----------- th-----------e c-----------ent-----------er -----------and-----------
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