In a refrigerating machine heat rejected is
WebJun 29, 2024 · In a refrigerating machine, heat rejected is _____ heat absorbed. A). Equal to B). Less than C). Greater than D). None of these In a refrigerating machine, heat rejected … WebWhen operating a refrigeration machine condenser using r-22 refrigerant, under normal conditions the operator observes that the cooling water is being supplied at 85 degrees f and leaving at 95 degrees f. ... the heat that is removed from the building is finally rejected as. Heat of evaporation of the cooling tower.
In a refrigerating machine heat rejected is
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WebThe temperature in a refrigerator coil is 267 Kand that in the condenser coil is 295 K. Assuming that the machine operates on the reversed Carnot cycle, calculate : (i) C.O.P.pe£) (ii) The refrigerating effect per kW of input work. iii) The heat rejected to the condenser. [Ans. (i) 9.54 (ii) 9.54 kW (iüi) 10.54 kW] Question Webmachine performances. In refrigeration operation, heat is then rejected to the hot sink during the compression (1–2) and provided to the cold source in the compression stage (3–4). In a Stirling machine, these exchangers play a crucial role in the optimization of the performances. The objective of this paper is to optimize
WebA Direct Water-Cooled System with Cooling Tower is an effective cooling system for industrial applications. It uses a closed-loop system to transfer the heat generated by the machinery to the cooling tower. The water is then cooled by the heat exchange process, and returned to the machinery for reuse. This system is known for its energy ... WebIt should be noted that heat rejection from absorption systems will be greater than that for an equivalent vapour compression system, because of the cooling required in the …
WebThe temperature in a refrigerator evaporator coil is -6 °C and that in the condenser coil is 22 °C. Assuming that the machine operates on the reversed Carnot cycle, calculate the COPref, the refrigerating effect per kilowatt of input work, and the heat rejected to the condenser. Suggested Answers: [9.54; 9.54 kW; 10.54 kW] Expert Answer WebIn general, the term heat pump is used to describe the cycle as heat energy is removed from the low-temperature space and rejected to the high- temperature space. The performance …
WebAnswer: Option C Solution (By Examveda Team) In a refrigerating machine, heat rejected is Greater than heat absorbed. Join The Discussion 1 ) 2 years ago Related Questions on …
WebAug 17, 2011 · As heat. There's no bonus because the insides are cool, and no bonus for COP (or EER). Watts in = heat out. Just multiply the hour's watt-hours you measured by 3.413 and you'll have BTUs. Note: your measurements may not be typical. Refrigerator rarely runs when it stays shut with cold food in it. glass building in nyWebQR = the heat rejected to the cold body W = the work done . e = the thermal efficiency . 1'] = the temperature of the Source of heat ... Refrigerating Machine and Reversed Carnot Cycle 11 . PROBLEMS (1) A reversed Carnot cycle is used for refrigeration and rejects 1,000 kW of heat at 340 K while receiving heat at 250 K. Determine (a) COP, (b ... fytertech green bayWebIn a refrigerating machine, heat rejected is ..... heat absorbed. answer choices . Equal to. Less than . Greater than . partially less than Equal to ... When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be. answer choices (A) 1.33 (B) 2.33 (C) 3.33 glass building new york cityWebRefrigeration Cycle Heat flows in direction of decreasing temperature, i.e., from high-temperature to low temperature regions. The transfer of heat from a low-temperature to high-temperature requires a refrigerator and/or heat pump. Refrigerators and heat pumps are essentially the same device; they only differ in their objectives. glass build ltdWebMar 30, 2024 · In a vapour compression refrigerator, the heat rejected in condenser is 1500 kJ/kg of refrigerant flow and the work done by compressor is 250 kJ/kg. The COP of the … glass building in new york addressWebIn a refrigerating machine, heat rejected is _________ heat absorbed. A. Equal to B. Less than C. Greater than D. None of these Answer & Solution Discuss in Board Save for Later 52. During sensible heating of air _________ decreases. A. Wet bulb temperature B. Relative humidity C. Dry bulb temperature D. Specific humidity fyter techWebB. rejects heat C. changes to a vapor D. is under lower pressure than the evaporator B. rejects heat The condenser in a refrigeration system_____. A. desuperheats the vapor from the compressor B. condenses the vapor from the compressor C. subcools the liquid refigerant before it leaves the condenser D. all of the above D. all of the above fyter tech green bay wi