A refrigeration storage is supplied with 10,000 kg of fish at a temperature of 20°C. The fish has to be cooled to -10°C for preserving it for a long period without deterioration. The cooling takes place in 10 hours. The specific heat of fish is 0.7 kCal/kg-K above freezing and 0.3 below freezing point which is -3°C. The latent heat of freezing is 55.5 kCal/kg. Find the refrigerating capacity in TOR.

A refrigeration storage is supplied with 10,000 kg of fish at a temperature of 20°C. The fish has to be cooled to -10°C for preserving it for a long period without deterioration. The cooling takes place in 10 hours. The specific heat of fish is 0.7 kCal/kg-K above freezing and 0.3 below freezing point which is -3°C. The latent heat of freezing is 55.5 kCal/kg. Find the refrigerating capacity in TOR.

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

See similar textbooks

Similar questions

3. 100-gram oil at 20°C and 50-gram iron at 75 °C are placed in 200-gram iron container. The increase in temperature of the container is 5°C and the specific heat of oil is 0.43 cal/g °C. What is the specific heat of the iron?
A 6-pack canned drink is to be cooled from 25°C to 3°C. The mass of each canned drink is 0.355 kg. The drinks can be treated as water, and the energy stored in the aluminium can itself is negligible. Solve for the amount of heat transfer from the 6 canned drinks.
Sample Problem • Four metric tons of pork are to be stored at a temperature of -12°C in 8 hours. The product enters the chiller at a temperature of 21°C and the specific heats above and below freezing are 0.86 kCal/kg-°C and 0.51 kcal/kg-°C, respectively, and its latent heat of fusion is 48 kCal/kg. If the freezing temperature of the product is -5°C, determine the product load in kCal/hr. TCL
Mechanical services
A 50-kg box of beef at 8°C having a water content of 72 percent is to be frozen to a temperature of -30°C in 4 hours. Freezing point is at -2°C. Specific heat of the beef above freezing is 3.23 kJ/kg.K and below freezing is 1.5 kJ/kg.K. Determine (a) the total amount of heat that must be removed from the beef, (b) the average rate of heat removal from the beef.
Please help with assumptions and fbd
Calculate the quantity of heat to be transferred in BTU to 3 kg of brass to raise its temperature from 26.7°C to 239.9°C. The specific heat of the brass is 0.394 kJ/kg.K.
Determine the time needed to decrease the temperature of a solid cylinder from 40 C to 35 C if the ambient temperature is equal to 31 C. The cylinder has a length equals to 0.9 m and diameter equals to 100 mm. The heat convective coefficient is equal to 9 W/m^2.K. The cylinder has a conductivity equals to 2 W/m.K, a density equals to 1200 kg/m^3 and its Cp is equal to 4.700 kJ/kgK.
Determine the heat stored in a concrete floor (10 cm thick, 3.5 m × 4.5 m),initial temperature 60°F, final temperature 80°F.
Two large containers A and B of the same size are filled with different fluids. The fluids in containers A and B are maintained at 0° C and 100° C, respectively. A small metal bar, whose initial temperature is 100° C, is lowered into container A. After 1 minute the temperature of the bar is 90° C. After 2 minutes (since being lowered into container A) the bar is removed and instantly transferred into the other container. After 1 minute in container B the temperature of the bar rises 10°. How long, measured from the start of the entire process, will it take the bar to reach 99.5° C? (Round your answer to two decimal places. Assume the final temperature being asked for is reached while the bar is container B.)
The initial temperature of a 50 cm long silver wire is 50 °C. The circumference of the wire in question is completely insulated, but both ends are kept at a temperature of 0 °C (zero degrees Celsius). Obtain the heat conduction along the wire as a function of time and position and, taking a single term in the solution, determine how many degrees Celsius the temperature in the middle of the rod will be after 7 minutes. (For silver wire, α=1.70 cm2/s.)