Find the mass in metric tons per day of at -5 °C that would theoretically made in a refrigerating plant from water at 15 °C, when the mass flowrate of CO2 is 0.7 kg/s. If the specific enthalpy of evaporation of CO2 at the evaporator pressure is 290.7 KJ/kg. The dryness fractions of the CO2 entering and leaving the evaporator are 0.22 and 0.98 respectively. Use the following constants (4.187 KJ/kg-K, 334 kJ/kg, 2257 KJ/kg).

Find the mass in metric tons per day of at -5 °C that would theoretically made in a refrigerating plant from water at 15 °C, when the mass flowrate of CO2 is 0.7 kg/s. If the specific enthalpy of evaporation of CO2 at the evaporator pressure is 290.7 KJ/kg. The dryness fractions of the CO2 entering and leaving the evaporator are 0.22 and 0.98 respectively. Use the following constants (4.187 KJ/kg-K, 334 kJ/kg, 2257 KJ/kg).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

Filnd the mass in metric tons per day of at -5 C that would theoretically made in a refrigerating plant from water at 15
°C, when the mass flowrate of CO, is 0.7 kg/s. If the specific enthalpy of evaporation of CO2 at the evaporator
pressure is 290.7 KJ/kg. The dryness fractions of the CO2 entering and leaving the evaporator are 0.22 and 0.98
respectively.
Use the following constants
(4.187 KJ/kg-K, 334 kJ/kg, 2257 KJ/kg).

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