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What duty is required to cool 1 t of Melons in 12 h from 20°C to 4°C? (Use Table 21.1 data

What duty is required to cool 1 t of Melons in 12 h from 20°C to 4°C? (Use Table 21.1 data

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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What duty is required to cool 1 t of Melons in 12 h from 20°C to 4°C? (Use Table 21.1 data

Table 21.1 Specific and latent heats of foodstuffs (typical values) Product Specific heat Highest Latent Specific heat capacity freezing heat of capacity above point (°C) freezing below freezing freezing 3.65 - 1.1 280 1.89 Apples Bananas 3.35 - 0.8 250 1.78 Beer 3.85 -2.2 Cabbage 3.92 - 0.9 Carrots 3.79 - 1.4 294 1.94 Celery 3.99 -0.5 Dairy products 3.75 milk butter -0.6 down to 1.37 1.04 - 20 ice cream 2.95 -6 1.63 cheese 2.1 - 13 1.3 Dried fruits 1.8 -2 Eggs, shell 3.05 -2.2 1.67 Fish, white 3.55 -2.2 1.86 blue 2.9 -2.2 1.63 Meats, bacon 1.5 -2 1.07 beef 3.2 -2 1.7 ham 2.7 -2 1.55 lamb 3 -2 1.65 pork 2.6 -2.5 1.3 poultry 3.3 - 2.8 1.77 3.95 - 0.9 2 Melons Mushrooms 3.89 - 0.9 1.98 Onions 3.8 - 0.9 1.95 Oranges 3.75 -0.8 3.62 - 1.6 Pears Potatoes 3.5 -0.7 1.84 Tomatoes 3.98 -0.5 II I I 53 210 125 220 270 210 64 230 188 215 125 246 310 304 295 265 -
Transcribed Image Text:Table 21.1 Specific and latent heats of foodstuffs (typical values) Product Specific heat Highest Latent Specific heat capacity freezing heat of capacity above point (°C) freezing below freezing freezing 3.65 - 1.1 280 1.89 Apples Bananas 3.35 - 0.8 250 1.78 Beer 3.85 -2.2 Cabbage 3.92 - 0.9 Carrots 3.79 - 1.4 294 1.94 Celery 3.99 -0.5 Dairy products 3.75 milk butter -0.6 down to 1.37 1.04 - 20 ice cream 2.95 -6 1.63 cheese 2.1 - 13 1.3 Dried fruits 1.8 -2 Eggs, shell 3.05 -2.2 1.67 Fish, white 3.55 -2.2 1.86 blue 2.9 -2.2 1.63 Meats, bacon 1.5 -2 1.07 beef 3.2 -2 1.7 ham 2.7 -2 1.55 lamb 3 -2 1.65 pork 2.6 -2.5 1.3 poultry 3.3 - 2.8 1.77 3.95 - 0.9 2 Melons Mushrooms 3.89 - 0.9 1.98 Onions 3.8 - 0.9 1.95 Oranges 3.75 -0.8 3.62 - 1.6 Pears Potatoes 3.5 -0.7 1.84 Tomatoes 3.98 -0.5 II I I 53 210 125 220 270 210 64 230 188 215 125 246 310 304 295 265 -
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