par mted, you A refrigeration system is to cool bread loaves with an average mass of 390 g from 30°C to -10°C at a rate of 1200 loaves per hour with refrigerated air at -30°C. Take the average specific and latent heats of bread to be 2.93 kJ/kg-°C and 109.3 kJ/kg. Determine the size of the compressor of the refrigeration system, in kW, for a COP of 1.2 for the refrigeration system. The size of the compressor of the refrigeration system is kW.

par mted, you A refrigeration system is to cool bread loaves with an average mass of 390 g from 30°C to -10°C at a rate of 1200 loaves per hour with refrigerated air at -30°C. Take the average specific and latent heats of bread to be 2.93 kJ/kg-°C and 109.3 kJ/kg. Determine the size of the compressor of the refrigeration system, in kW, for a COP of 1.2 for the refrigeration system. The size of the compressor of the refrigeration system is kW.

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

P1
2 kg of air as an ideal gas undergoes a Carnot refrigeration cycle as shown in the figure. The isothermal expansion occurs at 300K and isothermal compression occurs at 600K. The heat transfer to air during isothermal expansion is 125 kJ. Pressure at the end of isothermal expansion is 75 kPa. 4 TH 1 TL 2 Evaluate work during each step of the cycle.
! Required information Problem 08.048 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS - Piston Device with Refrigerant NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A piston-cylinder device initially contains 2 kg of refrigerant-134a at 100 kPa and 20°C. Heat is now transferred to the refrigerant from a source at 150°C, and the piston, which is resting on a set of stops, starts moving when the pressure inside reaches 120 kPa. Heat transfer continues until the temperature reaches 80°C. Assume the surroundings to be at 25°C and 100 kPa. R-134a 100 kPa 20°C Q 150°C Problem 08.048.c - Exergy Destroyed by Piston Device with Refrigerant Determine the exergy destroyed. (You must provide an answer before moving on to the next part.) The exergy destroyed is kJ.
i need the answer quickly
Refrigerant 134-a enters the evaporator coils placed at the back of the freezer section of a household refrigerator at 100 kPa with quality of 20 percent and leaves at 100kPa and -26 C as shown in Figure 2. If the compressor consumes 600 W of power and the COP of the refrigerator is 2.2 determine: The mass flow rate of the refrigerant The rate of heat rejected to the kitchen air la Condenser W. Expansion valve 100 kPa -0.2 Compressor Evaporator e 100 kPa 260
1) Refrigerant-134a enters the evaporator at 200 kPa with a quality of 45 percent and it leaves at 200 kPa and 10°C in a refrigerator. The refrigeration load is 500 W and COP of the refrigerator is 1.5, determine a- The compressor work b- The mass flow rate of the refrigerant c- The rate of heat rejected to the environment(
Can you please help me understand this I know the clausius inequatilty but do i just get the difference in q divided by temperature i dont know what to do.
A refrigeration system is to cool bread loaves with an average mass of 450 g from 22°C to-10°C at a rate of 500 loaves per hour by refrigerated air. Taking the average specific and latent heats of bread to be 2.93 kJ/kg-°C and 109.3 kJ/kg, respectively, determine the product load. kW
PLEASE ANSWER IT ASAP FOR AN UPVOTE
Heat is rejected from the condenser of a heat pump cycle by refrigerant-134a entering at 700 kPa and 50 ◦C at a rate of 105 kg/h and leaves as a saturated liquid. Determine (a) the temperature of R-134a at the condenser exit, (b) the volume flow rate at the exit of the condenser in L/min, (c) the COP of the heat pump if the rate of heat absorbed in the evaporator is 12,000 Btu/h.
A boiler produces 5.4 tonnes/hour of steam at a pressure of 1.5 MPa and a temperature of 350°C. Feedwater enters at a temperature of 44.5°C. At exit from the economizer part of the boiler the temperature is 93.5°C. At exit from the evaporator part of the boiler the steam is 90 A % dry. Energy is supplied by 600 kg of coal per hour, which has a calorific value of 32 MJ/kg. The A/F ratio is 15 1. The temperature of the flue gas at exit from the the economizer part of the boiler is 210°C. The average specific heat at constant pressure of the in the economizer is 1045 J/kg.K. When the ambient temperature is 24°C : 7. IS flue gas 7.1 Calculate the efficiency of the boiler. [83.3 %] Calculate the equivalent evaporation from and at 100°C per unit mass of fuel. |11.9| Draw up an energy balance, on a kJ/kg coal basis, with percentages of the total energy supplied. Jeconomizer 6.8 %, evaporator 62 %, superheater 15.5 %, to atmosphere 9.7 %, other 7.2 7.3 losses 7 %]