Question

A food product will be frozen and placed in a can with 80% water content and...

A food product will be frozen and placed in a can with 80% water content and 6 cm in diameter. product density of 800 Kg / m3, thermal conductivity of 0.1 W / (m K), and initial freezing temperature of -2 degrees Celsius. After 10 hours frozen at -15 degrees Celsius (freezing medium), the product temperature becomes -10 degrees Celsius. determine the convective heat transfer coefficient on the freezing medium .... (W / [m2 K])

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
a food product will be frozen and placed in a can with 80% moisture content and...
a food product will be frozen and placed in a can with 80% moisture content and 6cm in diameter. product density 500 kg / m3, thermal conductivity 0.1W / (mK) and initial freezing temperature of -2 degrees Celsius. after 10 hours it has been frozen at -15 degrees Celsius (freezing medium) the temperature of the product becomes -10 degrees Celsius. determine the convective heat transfer coefficient on the freezing medium .. (W / [m2 K])
A long cylinder 11 cm in diameter is initially at a uniform temperature of 427 C...
A long cylinder 11 cm in diameter is initially at a uniform temperature of 427 C and has a density of 7250 kg/m3, thermal conductivity of  16.7 W/m-K, and a specific heat of 540 J/kg-K. The cylinder is suddenly plunged into water with a temperature of 27 C, giving a convective heat transfer coefficient of 380 W/m2-K. a) Determine the surface and centerline temperatures of the cylinder 12 minutes after immersion. b) Calculate the heat transferred from the cylinder during this...
A 2.5 cm inside diameter pipe is being used to convey a liquid food at 80ºC....
A 2.5 cm inside diameter pipe is being used to convey a liquid food at 80ºC. The inside convective heat transfer coefficient is 10W/(m2ºC). The pipe (0.5 cm thick) is made of steel (thermal conductivity = 43W/mºC). The outside ambient temperature is 20ºC. The outside convective heat-transfer coefficient is 100 /(m2ºC). Calculate the overall heat transfer coefficient and the heat loss from 1 m length of the pipe.
Consider a cube of density, specific heat, and thermal conductivity of 2700 kg/m3, 0.896 kJ/kg-K, and...
Consider a cube of density, specific heat, and thermal conductivity of 2700 kg/m3, 0.896 kJ/kg-K, and 204 W/m-K, respectively. The cube is 5 cm in length, and is initially at a temperature of 20 oC. For t>0, two of the boundary surfaces are insulated, two are subjected to uniform heating at a rate of 10,000 W/m2, and two dissipate heat by convection to an ambient temperature of 20 oC, with a heat transfer coefficient of 50 W/m2-K. Assuming lumped capacitance...
Air enters a rectangular duct measuring 40 cm by 50 cm with a velocity of 8.5...
Air enters a rectangular duct measuring 40 cm by 50 cm with a velocity of 8.5 m/s and a temperature of 50 degree Celsius. The flowing air has a thermal conductivity 0.03 W/m K, kinematic viscosity (16.95*10^-6) m2/s and from empirical correlations the Nusselt number has been approximated to be 425. find the convective heat flow coefficient.
To determine the thermal conductivity of a long, 25.0 mm diameter cylindrical rod, one half of...
To determine the thermal conductivity of a long, 25.0 mm diameter cylindrical rod, one half of the rod was inserted into a furnace while the other half projected into air at 27.0 degrees C. After steady state had been reached, the temperatures at two points 76.0 mm apart were measured and were found to be 126 degrees C. and 91.0 degrees C. The convective heat transfer coefficient of the surface of the rod exposed to the air was 22.7 W/m^2...
Fresh food product is held in cold storage at 278K. It is packed in a container...
Fresh food product is held in cold storage at 278K. It is packed in a container in the shape of a slab with all facesinsulated except for the top flat surface, which is exposed to airat 278oK. The slab is 154.2 mm thick and the exposedsurface area is 0.18m2. The density of the foodstuff is 641 kg/m3. The heat of respiration is 0.070 kJ/kg-hr.and the thermal conductivity is 0.346 W/mK.
hot fluid at 230°C flows through a 1-meter pipe of 0.02m outside radius and 0.015m inside...
hot fluid at 230°C flows through a 1-meter pipe of 0.02m outside radius and 0.015m inside radius. The thermal conductivity of the pipe is 0.5 W/m.k, and the heat transfer coefficient (hi) inside is 300 W/m2 K. The pipe is located in a room at 30°C, and the heat transfer coefficient (ho) at the outer surface is 10 W/m2 k. Calculate the temperature drop (∆T) across the pipe wall.
A thin metallic wall may be constructed using copper (properties are given in the table). The...
A thin metallic wall may be constructed using copper (properties are given in the table). The piping is required to have a radius r = 0.008 m and carries steam at 385 K. The wall is inside a room surrounded by air at a temperature of 298 K. The wall is insulated with a material (properties are given in the table). Properties Copper Insulation material Thermal Conductivity (W/m per ˚C) 385 0.071 Density (kg/m3) 8940 453 i. If the external...
A 0.6 m thick plate's temperature distribution is being estimated using finite difference methods. Initial temperature...
A 0.6 m thick plate's temperature distribution is being estimated using finite difference methods. Initial temperature distribution is uniform at 30 C. A 70 C medium submerges the plate on both sides. The medum has a heat transfer coeffficient (h) = 50 W/m2K. The thermal diffusivity of the plate material is 2.7 x 10-4 m2/s., and the thermal conductivity (k) = 0.34 W/m K. What are the proper values of M, N, Δx and Δt used in the finite difference...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT