Determine the mass flow rate of the cooling water

Reference no: EM13316867

refrigerant 134a is compressed at steady state from 2.4 bar, 0 degrees celcius, to 12 bar, 50 degrees celcius. Refrigerant enters the compressor with a volumetric flow rate of 0.38m^3/min, and the power input to the compressor is 2.6 kW. Cooling water circulating through a water jacket enclosing the compressor experiences a temperature rise of 4 degrees celcius from inlet to exit with a negligible change in pressure. Heat transfer from the outside of the water jacket and all kinetic and potential energy effects can be neglected. The specific heat for liquid water is 4.179 kJ/kg*K. Determine the mass flow rate of the cooling water, in kg/s. (Hint: two independent subsystems are involved -a compressor with one inlet and one outlet, and a water jacked with one inlet and one outlet. The heat released by the compressor will be completely absorbed by the water jacket.)

Reference no: EM13316867

Questions Cloud

Determine the alkalinity and total carbonate concentration : If the pH of a natural water is 7.8, and the alkalinity was measured to be 125 meq/L, determine the following: - Alkalinity as mg/L CaCo3 - Approximate the total carbonate concentration (Ct), in moles per liter.

What is the concentration of hypochlorite ion in mg per l : If 5 mg of NaOCl are added to one liter of water and the pH is measured to be 7.8, what is the concentration of hypochlorite ion (OCl-) in mg/L

How much work must be done to stretch the spring : A spring with spring constant of 29 N/m is stretched 0.21 m from its equilibrium position. How much work must be done to stretch it

Determine the carburizing time necessary to achieve : Determine the carburizing time necessary to achieve a carbon concentration of 0.35 wt% at a position 2 mm into an iron-carbon alloy that initially contains 0.10 wt% C.

Determine the mass flow rate of the cooling water : refrigerant 134a is compressed at steady state from 2.4 bar, 0 degrees celcius, to 12 bar, 50 degrees celcius. Refrigerant enters the compressor with a volumetric flow rate of 0.38m^3/min, and the power input to the compressor is 2.6 kW.

Calculate the retardation coefficient for the three chemical : Groundwater has been contaminated with three chemicals: benzene (log Kow 2.13), pentachlorobenzene (log Kow 5.03), and naphthalene (log Kow 3.36). The aquifer (rs = 2.3 g/cm3; h = 0.4; foc = 0.02) has a gradient of 0.004 and hydraulic conductivity..

What is the max height of the rocket : A rocket is launched from rest with an acceleration of 30m/s^2 for the duration of one second when it runs out of fuel. What is the max height of the rocket

Calculate the hydraulic conductivity k of the soil sample : The diameter of the sample and the standpipe were 9.8 cm and 0.75 cm, respectively. The water level in the standpipe was observed to fall from 60 cm to 45 cm in 12 minutes. Calculate: a. The hydraulic conductivity k of the soil sample .

What is the change in temperature of the brake pads : A 804 kg car is going 20 m/s and the driver has to slam on his brakes to prevent an accident. what is the change in temperature of the brake pads

User Account

All Pages