food product containing a water content of 85% is frozen. Estimate the heat type products at -10 °C when 82% of the water is in its frozen state. Hot product type dry is 2.5 kJ/(kg °C) is assumed to heat this type of water at -10 °C is equal to heat water type at 0 °C, and the heat of the types of ice follow function Cp ice = 0 0062 x T frozen + 2 0649. a. Cp frozen products kJ/kg °C.

food product containing a water content of 85% is frozen. Estimate the heat type products at -10 °C when 82% of the water is in its frozen state. Hot product type dry is 2.5 kJ/(kg °C) is assumed to heat this type of water at -10 °C is equal to heat water type at 0 °C, and the heat of the types of ice follow function Cp ice = 0 0062 x T frozen + 2 0649. a. Cp frozen products kJ/kg °C.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.5P: To determine the thermal conductivity of a structural material, a large 15-cm-thick slab of the...

See similar textbooks

Similar questions

Using the information in Problem 1.22, estimate the ambient air temperature that could cause frostbite on a calm day on the ski slopes. 1.22 In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas gives both an air temperature and the wind-chill temperature. The air temperature is measured with a thermometer that is not affected by the wind. However, the rate of heat loss from the skier increases with wind velocity, and the wind-chill temperature is the temperature that would result in the same rate of heat loss in still air as occurs at the measured air temperature with the existing wind. Suppose that the inner temperature of a 3-mm-thick layer of skin with a thermal conductivity of 0.35W/mKis35C and the air temperature is 20C. Under calm ambient conditions the heat transfer coefficient at the outer skin surface is about 20W/m2K (see Table 1.4), but in a 40-mph wind it increases to 75W/m2K. If frostbite occurs when the skin temperature drops to about 10C, do you advise the skier to wear a face mask? What is the skin temperature drop due to the wind?
number 1 A food product containing 80% moisture content is being frozen. Estimate the specific heat of the product at -8 ° C when 80% of the water is frozen. The specific heat of the dry product is 2 kJ / (kg ° C). It is assumed that the specific heat of water at -10 ° C is the same as the specific heat of water at 0 ° C, and that the specific heat of ice follows the function Cp es = 0.0062 T Frozen + 2.0649. Cp of frozen product = kJ / kg ° C.
number 1 A food product containing 75% moisture content is being frozen. Estimate the specific heat of the product at -10° C when 85% of the water is frozen. The specific heat of the dry product is 2 kJ / (kg ° C). It is assumed that the specific heat of water at -10 ° C is the same as the specific heat of water at 0 ° C, and that the specific heat of ice follows the function Cp es = 0.0062 T Frozen + 2.0649. Cp of frozen product = kJ / kg ° C.
When The process is accorcing to a law iso thermal. takes place in a perfectly thermally b. C. insulated Cylinder. 8=1.3 Ans.[ 270 i 5.138 1g1.713 1J,52.6i,sSiky.-5.51, 219 5251g, o leg] University of Anbar College of Engineering Mechantont Englning Dpartment Year (Sophomore year) THERMODYNAMICSA Lec. No. Date: / 202 ME2303 Instructor: Asst. Prof. Dr. Saad M. Jalil hr Page Na. Q7 225 1g Ih of air at 4o% enter amixing chamber where it mixes with 540 kg /h of air at isi. Calculate the temperature of the air leaving the Chamber. assuming steady flow conditions. A ssume that the heat loss is negligible . Ans [22.4c] Q8: Aquantity of gas occupying o14n at a pressure of 1.4MNIM? and temperature of 300 č is expanded adiabatirally to 280 K Nimi Cv = 0. 74 Kg 11eg K p=1o41g ng - detennine: a. the mass of gas b. the temperature of the gas after expansion. work done during the expansion. Ans-fa-1.14 kg C. the b. ४३१ C. 180 lT ) Internal mC,(T2-T1) mC,(T2-T
A composite wall consists of wood and steel. The bond between the wood and steel is not perfect, resulting in small air gaps at the interface. At steady-state, temperature 1 (T1) is greater than temperature 2 (T2). Which of the following represents the temperature distribution? I wood steel T2 T2 а. d. b. е. T2 с.
dated metncpdf Thermodynamics An Engineering X E Module2-chap2propertiesofpure x O File C:/Users/DANIEL/Desktop/300L%202ND%20SEMESTER%20MATERIALS/Module2-chap2propertiesofpuresubstances-130703012604 phpap. ID Page view A Read aloud V Draw H Highlight O Erase 40 MEC 451 - THERMODYNAMICS Faculty of Mechanical Engineering, UITM Supplementary Problems The pressure in an automobile tire depends on the temperature of the air in the tire. When the air temperature is 25°C, the pressure gage reads 210 kRa. If the volume of the tire is 0.025 m3, Cetermine the pressure rise in the tire when the air temperature in the tire rises to 50°C. Also, determine the amount of air that must be bled off to restore pressure to its original value at this temperature. Assume the atmospheric pressure is 100 kPa. [ 26 kPa, 0.007 kg] 1. A 6 4 2:57 PM Lucky CORER 144 Tum lock 314 % 8 1/2 24 6 1/4 23 T K F pause B
You are charged with specifying a cooling system for a house. The solar and internal gains have been calculated already, but you need to increase its capacity to account for ventilation. The ventilation system will constantly exhaust 200 cubic feet per minute (CFM) of stale air and replace it with 200 21 CFM of fresh air. On a design day, the outdoor air is 90°F dry bulb temperature and 73°F wet bulb temperature. Indoor air is expected to resolve to "standard 21 air" at 75°F and 50% relative humidity (%RH). What is the additional amount of coolir acity required to account for the ventilation system? Your answer should be in Btu/h. Answer:
Give True or False for the following: 1.In liquids and gases, heat transmission is caused by conduction and convection 2.The surface geometry is the important factor in convection heat transfer 3. The heat transfer by conduction from heated surface to the adjacent layer of fluid, 4. The heat transfer is increased in the fin when &> 1 5.The unit of the thermal diffusivity is m²/s 6. Temperature change between the materials interfaces is attributed to the thermal contact resistance 7. A material that has a low heat capacity will have a large thermal diffusivity. 8. Heat conduction flowing from one side to other depends directly on thickness 9.Fin efficiency is the ratio of the fin heat dissipation with that of no fin 10.The critical radius is represented the ratio of the convicted heat transfer to the thermal conductivity
Problem 3: A plate is exposed to hot fluid at T=700°C and h = 323 W/m2-K. The plate has an initial temperature of 20°C. How long should the plate expose to the hot fluid before reaching 500°C at the center of the plate? The plate is made of made of Boron. %3D = 700°C h = 323 W/m²-K 2L = 5 cm Stainless el plate T,= 20°C
Equations of Polytropic Process Definition, diagrams, equations, & sample problems Test Your Skills 14.1 1. A substance undergoes a process such that pV13 = C. If during this process the volume increases by 25% and the initial temperature is 300 K, find the final temperature in K. Your answer Submit Previous activity Jumn to 合曲 60000
Recall that a there fore thermodynamie detinihon Constant pressure, AH = 9. We can from the caleulate AS for any process S= arev こナ Use this informmaton to deprive dAS an expressiom for but temperature - Invariant heat capacuty change s Cp. Integrate this equathon Such that Calculate the AS at any temp T given a known value AS, at To for a process Involving a non-zero you Can
A cylinder with a diameter of 46 mm is heated on one end, causing a temperature gradient of 240°C/m at steady state. What is the temperature gradient [°C/m] in a 10 mm diameter cylinder of the same material with the same heat transfer rate?