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)ProductSpecific heat Highest Latent Specific heatcapacityfreezingheat ofcapacityabovepoint (°C)freezingbelowfreezingfreezing3.65- 1.12801.89ApplesBananas3.35- 0.82501.78Beer3.85-2.2Cabbage3.92- 0.9Carrots3.79- 1.42941.94Celery3.99-0.5Dairy products3.75milkbutter-0.6down to1.371.04- 20ice cream2.95-61.63cheese2.1- 131.3Dried fruits1.8-2Eggs, shell3.05-2.21.67Fish, white3.55-2.21.86blue2.9-2.21.63Meats, bacon1.5-21.07beef3.2-21.7ham2.7-21.55lamb3-21.65pork2.6-2.51.3poultry3.3- 2.81.773.95- 0.92MelonsMushrooms3.89- 0.91.98Onions3.8- 0.91.95Oranges3.75-0.83.62- 1.6PearsPotatoes3.5-0.71.84Tomatoes3.98-0.5IIII5321012522027021064230188215125246310304295265-

Answered: Image /qna-images/answer/b72410c0-c6bd-45f5-b461-da75263405bd.jpg

Answered: What duty is required to cool 1 t of…

Engineering

Mechanical Engineering

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

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

500 kilograms of dressed chicken enter a chiller at 10°C are frozen and chilled to a final temperature of -15°C for storage in 20 hours. Compute the product load.Specificheat above freezing............3.2 kJ/kg-°KSpecific heat below freezing............1.6 kJ/kg-°KLatent heat...........250 kJ/kgFreezing Temperature.......... -5°CA. 2.18 kwB. 6.67 kwC. 3.67 kwD. 7.67 kw
The data provided by a water bottling company for the year 2020 to carry out Break Even Analysis and provide them the results, is as follows. The fixed cost of the year is 9000.0 R.O The estimated sales are 2200000 units The cost of water treatment / unit 12 baize The cost of bottling / unit 08 baize The cost of labelling / unit 08 baize The cost packing / unit 10 baize The cost of labour and maintenance / unit 20 baize The cost of 1 liter bottle (plastic bottle) 12 baize Each unit is sold at price 95 baize Construct the B.E.P chart on a graph sheet and indicate M.o.S, B.E.P and also indicate the new B.E.P, & M.o.S after the improvement measures has been taken and show all mathematical calculations. 1. Determine the B.E.P 2. Determine the profit 3. Margin of safety. 4. Write your decisions to improve the profits of the company and to reduce the B.E.P
7.) 200 kg of pork is to be cooled from 20 to 5 C, then frozen and cooled to -20 C. The moisture content is 70.5 %, so the latent heat is estimated to be 236.175 kJ/kg. Estimate the cooling load. Freezing point is -3 C. Specific heat of pork before freezing 3.50 kJ/kg.K and after freezing 1.70 kJ/kg.K.
1- Select the optimum choice for: high speed air craft skins material. Table 1: The properties of metallic materials E, GPa Max. use lemp, 'C | Density, Mg/cm' ay, MPa | Relative cost per unit sheet area Material 2.8 300 2 Aluminum alloy 200 69 200 7,8 350 350 700 Carbon steel Stainless steel 193 7.8 650 6 8.9 600 6 Nickel alloy Titanium alloy 207 1000 116 600 4.5 900 10 Table 2: Weighting factor Specific yield strength: Max, use temperature: Youngs modulus: 4 2
Thermochemistry Assignment 26.4: An ice cube with a mass of 103 grams and an initial temperature of 0°C is added in an adiabatic container with 2L of water initially at 25°C. Using the data given below, answer the ff. questions: Water as Liquid as Ice Density (g/mL) Cp (Joule/K-mole) AHusion (KJ/mole) AHvaportzation (KJ/mole) 1.000 0.997 75.35 37.71 6.01 40.57 1. What is the mass of ice that melt at the equilibrium state? 2. What is the mass of ice that will remain unmelted at the equilibrium state? 3. Calculate the absolute temp. at the equilibrium state.
= 14 15 16 17 18 19 20 21 22 23 24 25 26 A gas storage cylinder in an ordinary chemical laboratory measures 3.9 cm wide and 16. cm high. This is the label on it. olo Contents: N, gas Pressure: 7.93 atm If the cylinder is opened and the gas allowed to escape into a large empty plastic bag, what will be the final volume of nitrogen gas, including what's collected in the plastic bag and what's left over in the cylinder? Write your answer in liters. Round your answer to 2 significant digits. ?
Q.5 The INCORRECT statement about the characteristic of critical point of a pure substance is that there is no constant temperature A vaporization process it has point of inflection with zero slope the ice directly converts from solid C phase to vapour phase saturated liquid and saturated vapour D states are identical
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
Q) Air conditioning system supplies two rooms required deferent conditions. Room 1 is to be minted at 16 C° dry bu temperature and 75% saturation, by supplying air at 13 C°, whereas room 2 is to be minted at 25 C° and 45% saturation supplying air at the same moisture content as required for room one. There is a commune extract duct the ratio of fre outdoor air to rooms recirculated air be (0.2). Then the mixed air stream passes through a cooled coil which has a cont factor 0.9, then supplying to the rooms through separates heater coil. Determine: a- The mass flow rate of supplying air each room. b- Plot the psychometric chart. c- Obtain the cooler load. d- Obtain the load of each heater. Let the outdc condition is 42 C° dry bulb temperature & 25 % RH. [Room 1 (Qs=5.2 kW, Q=1.3 kW) Room 2 (Qs=4.2 kW, QL=2.8 kW
100 2200 20 40 60 80 1200 2000 -Liquidus 1000 Liquid 1800 Solidus F a +L 1600 B+L 800 779°C (Tg). E 8.0 71.9 91.2 1400 (CaE (Cg) (CBE 1200 600 Solvus 1000 a + B 800 400 C 600 H 200 0 400 100 20 40 60 80 (Cu) Composition (wt% Ag) (Ag) 1- define pointe E? 2- define pointe B? 3- define the line AE? 4- define the line BG? 5- define the line FG? Temperature (°C) Temperature ('F)
Given a ttt diagram of steel 1040. For each section determine the final steel structure. Mark the tracks on the graph. For your convenience, 2 identical graphs are attached below. Each section starts from a temperature of 800c: 1 Rapid cooling to 400c, staying for 100 seconds at this temperature and then rapid cooling to room temperature. 2. Rapid cooling to 600c, staying for 30 seconds at this temperature and then rapid cooling to room temperature. 3. Rapid cooling to 400c, staying for one second at this temperature and then rapid cooling to room temperature. 4. Rapid cooling to 700c Stay for 8 minutes at this temperature and then rapid cooling to room temperature.
Course dashboard A 100.0-g bar of cadmium is heated from 25 °C to 50 °C during which it absorbs 578 J of heat. Assume the volume of the cadmium bar remains constant. Based on this, what is the specific heat of Cd(s)? Lütfen birini seçin: a. 0.231 J/g.K O b. 0.123 J/g.K O c. 0.897 J/g.K O d. 0.328 J/g.K O e. 0.129 J/g.K SONRAKİ SAYFA