Question

Michael have just bought a new 2.5 horsepower refrigerator. If the cooling rate of the refrigerator is claimed to be 5 Btu/s. a. Determine the amount of heat rejected to the surrounding in kW. b. What is the refrigerator coefficient of performance? [3 marks) c. Due to the fact that Michael is living in tropical climate with temperature [3 marks] ranges from 20°C at $5°C, evaluate the lowest temperature could be [7 marks] achieved inside the refrigerator. Please state your assumptions accordingly.

Answer 1

PAGE DATE "Rough 'n Form c Using Camot Temp range at Micheals place 220°C to 35°C efficiency formula COP² The lower temp TH-TL The Higher temp/ for 30°c the Retoigezo hoy lempo will be lower as the work done by comports.com is equal for both tompoohse Te 20°C or 293k T2 35°C or 308K susroundy temap 2,829 ? Tu 308-T 871,332 23,825 TL The 227,56 z 2,8992 TL 293-T 829, 122,829 Tr Te 829. 1 To 2.829 1, 2 "Не се 216,53K T 2 216.53-273,15 2 - 56,31°C T2227,56-273,15 Thr-45.58°C So, ma Lowest me temprohose that con be achieved con be - 56,31°C