A 112 tons of refrigeration system is used to produce chilled water from 22 °C to 2°C. compute the mass flow rate of the chilled water.
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- The percent rating of water tube boiler is 200 %, factor of evaporation is 1.10, and heating surface is 400 ft2. Determine the rate of evaporation, in kg/hr.For air properties use online source: https://www.peacesoftware.de/einigewerte/luft_e.html The compressor is operating at steady-state increasing pressure of R-22 refrigerant from 4 bars to 14 bars. Temperature was rising during the process from 12C to 90C. The inlet volumetric flow rate is 1 m3/min and inlet diameter is 0.03m. At the exit the diameter is the same. Heat flow to the surroundings can be neglected. Determine: a.Mass flow rate [kg/s] SHOW AND EXPLAIN ALL STEPS PLEASE thanksFor air properties use online source: https://www.peacesoftware.de/einigewerte/luft_e.html The compressor is operating at steady-state increasing pressure of R-22 refrigerant from 4 bars to 14 bars. Temperature was rising during the process from 12C to 90C. The inlet volumetric flow rate is 1 m3/min and inlet diameter is 0.03m. At the exit the diameter is the same. Heat flow to the surroundings can be neglected. Determine: a.Mass flow rate [kg/s] SHOW AND EXPLAIN ALL STEPS PLEASE
- For air properties use online source: https://www.peacesoftware.de/einigewerte/luft_e.html The compressor is operating at steady-state increasing pressure of R-22 refrigerant from 4 bars to 14 bars. Temperature was rising during the process from 12C to 90C. The inlet volumetric flow rate is 1 m3/min and inlet diameter is 0.03m. At the exit the diameter is the same. Heat flow to the surroundings can be neglected. Determine: a.Mass flow rate [kg/s] b. Inlet and outlet velocity [m/s] c.Power required to run the compressor [kW]a desuperheater insulated unit (figure F) converts the inputs into asaturated vapor stream. Determine the mass flow rate of the superheatedstream. . Determine the enthalpy of liquid water both from table 5.1, table 5.4. What is your conclusion from this comparison?200 m3/min is passed through the adiabatic humidifier. The condition of the air at inlet is 40C db and 15% RH and the outlet condition is 25C db and 20C wb. Find the amount of the water vapor added to the air per minute.
- Indonesia Inggris A single effect evaporator was used to concentrate 8000 kg / hr of tomato juice from 5% total solids to 30% total solids. The juice enters the evaporator at 25 ° C. The evaporator is operated on Steam (85% quality) at 143.27 kPa. The vacuum in the evaporator allows the juice to boil at 75 ° C. The specific heat of the dilute material is 4.1 kJ / (kg ° C) and the concentrate product is 3.1 kJ / (kg ° C). Count it (a) The rate of demand for steam? b. Steam economy if condensate temperature is released at 75 ° C.?A single effect evaporator is being used to concentrate 8000 kg/h of tomato juice from 5% total solids to 30% total solids. The juice enters the evaporator at 25°C. The evaporator is operated with steam (85% quality) at 143.27 kPa. The vacuum inside the evaporator allows the juice to boil at 75°C. The specific heat of the liquid feeds is 4.1 kJ/(kg°C) and the concentrated product is 3.1 kJ(kg°C) Calculate a. The steam requirements = ... kg/h b. Steam economy for the process. Assume the condensate is discharged at 75°CAt a flow rate of .5000 m3 / h, saturated air at a temperature of 2 ° C is heated sensibly up to a temperature of 40 ° C with the help of a heating coil. Find the amount of heat that should be given to the coil.
- An aqua ammonia absorption plant operates between pressures at 206.8 and 1378 kPaa. The strongsolution enters the generator saturated at 82.2°C and the weak solution leaves the generator saturated at93.3°C. Saturated vapor leaves the generator with a concentration of 0.993 kg NH3 /kg mixture. Assuming thatthe strong solution leaving the absorber is saturated, neglecting pump work and heat losses, calculate perkg/min flow of refrigerant through the evaporator:a. the mass flow of strong solution entering the generator in kg/minb. the mass flow of weak solution leaving the generator in kg/minc. the enthalpy of the weak solution entering the absorber in kJ/kg weak solution and the heat rejected in the absorber in kW Saturated liquid at 1378 kPaa and 82.2°C has a concentration of 0.46 kg NH3 /kg mixture and an enthalpy of209.2 kJ/kg of mixture, saturated liquid at 1378 kPaa and 93.3°C has a concentration of 0.41 kg NH3 /kg mixtureand an enthalpy of 255.68 kJ/kg of mixture, saturated liquid…A single effect evaporator was used to concentrate 10000 kg / hr of tomato juice from 5% total solids to 30% total solids. The juice enters the evaporator at 25 ° C. The evaporator is operated on Steam (85% quality) at 143.27 kPa. The vacuum in the evaporator allows the juice to boil at 75 ° C. The specific heat of the dilute material is 4.1 kJ / (kg ° C) and the concentrate product is 3.1 kJ / (kg ° C). a. Steam demand rate = kg / hour. b. Steam economy when condensate temperature is released at 75 ° C. = (kg of water evaporated / kg of steam)A 15-ton refrigeration system is used to make ice. The water is available at 20°C. Refrigerant12 is used with saturated temperature limits of -25°C and 54°C. Determine (a) the COP, (b) therefrigerant flow rate, (c) the temperature at discharge of the compressor, (d) the volume flowrate, and (e) the maximum kg of ice manufactured per day.