کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
153276 456523 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of a non-isothermal, non-isobaric consolidated reactive bed for chemisorption icemakers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Study of a non-isothermal, non-isobaric consolidated reactive bed for chemisorption icemakers
چکیده انگلیسی

Kinetic, heat and mass transfer in a consolidated reactive bed for sorption icemakers were studied with an analogical model that was experimentally validated. The bed was made from expanded graphite impregnated with calcium chloride, and the coefficients of the model were assessed by minimizing the sum of the squared deviations between the observed and simulated data, for several operation conditions normally employed in the ice making process. The average error in calculated global conversion during the synthesis phase ranged from 0.012 to 0.041, depending on the experimental conditions. The average error for the simulated temperature was smaller than 1.3 °C, and the average error for the pressure close to the wall of the reactor was smaller than 50 mbar. Simulation results showed that a specific cooling power higher than 1250 W/kg of salt can be achieved with a bed of 10 mm thickness operating with an evaporation temperature of −15 °C and a heat sink temperature of 25 °C; however if the thickness of the bed is increased to 20 mm, the evaporation temperature should be at least −10 °C to produce similar results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 138, Issues 1–3, 1 May 2008, Pages 416–424
نویسندگان
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