Evaporator, single effect is used to upgrade the concentrate 8000 kg/h of tomato juice than 5% solids the total to 30% solids total. Juice enters the Evaporator at 20 °C. The Evaporator is operated with Steam (quality 80%) in 143.27 kPa. The condition of vacuum in the Evaporator allow the juice to a boil on the 75 °C. The hot kind of material dilute is 4.1 kJ/(kg °C) and the product the concentrate is a 3.1 kJ/(kg °C). Count (a) the Rate of the needs of steam = kg/h. b. The economic steam if the temperature is condensate is released at 75 °C. = (kg water evaporated/kg of steam)

Evaporator, single effect is used to upgrade the concentrate 8000 kg/h of tomato juice than 5% solids the total to 30% solids total. Juice enters the Evaporator at 20 °C. The Evaporator is operated with Steam (quality 80%) in 143.27 kPa. The condition of vacuum in the Evaporator allow the juice to a boil on the 75 °C. The hot kind of material dilute is 4.1 kJ/(kg °C) and the product the concentrate is a 3.1 kJ/(kg °C). Count (a) the Rate of the needs of steam = kg/h. b. The economic steam if the temperature is condensate is released at 75 °C. = (kg water evaporated/kg of steam)

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.3P

See similar textbooks

Similar questions

Consider a sealed can that is filled with 4.4 kg of water at 115 °C and P = 248 kPa. Now a leak develops, and the pressure in the can drops to the local atmospheric pressure of 100 kPa (Cp=4.23 kJ/kg.K). The vapor leaves the can as soon as it is formed. How much vapour will evapourate before the liquid water reaches its boiling temperature at atmospheric pressure. NB: water's enthalpy of vapourisation is roughly 2257 kJ/kg . a. 4.400 kg b. 0.120 kg c. 1.093 kg d. 0.030 kg e. 0.015 kg
Q1/ A boiler working at a pressure of 1.4 MPa evaporates 8 kg of water per kg of coal from feed water entering at 40C. The steam at the stop value is 0.95 quality. Determine the equivalent evaporation from and at 100C.
Please don't give image based answer..thanku Question:- Water vapor enters a continuous flow adiabatic turbine at 9 MPa pressure, 450 o C temperature and 188 m/s velocity, and exits at 50 m/s speed at 20 kPa pressure and 92% dryness. Calculate the turbine inlet cross-sectional area since the mass flow rate of the steam is 12kg/s.
5kg of water vapour are contained at 150kPa and 90% dry in a suitable enclosure. Calculate: 1.2.1 the heat required to produce saturated vapour
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…
Ammonia and air pass through the heat exchanger. While the ammonia is entering as asuperheated vapor at 16 bar pressure and 60C temperature it is leaving as a saturated liquid at thesame pressure but unknown temperature. The ammonia mass flow rate is 400 kg/hour.Air is flowing backward and is heated from 17C to 42C at the constant pressure of 2 bars.NOTE: Find air properties from https://www.peacesoftware.de/einigewerte/luft_e.html a. Draw the ammonia T-v diagram showing the stages, pressures, and temperatures b. How much heat is transferred from ammonia to air assuming no heat transfer to thesurroundings? c.Determine air mass flow rate Please show all steps in solution thanks
At 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.
Ammonia and air pass through the heat exchanger. While the ammonia is entering as a superheated vapor at 16 bar pressure and 60C temperature it is leaving as a saturated liquid at the same pressure but unknown temperature. The ammonia mass flow rate is 400 kg/hour. Air is flowing backward and is heated from 17C to 42C at the constant pressure of 2 bars. NOTE: Find air properties from https://www.peacesoftware.de/einigewerte/luft_e.html a.Draw the sketch of the heat exchanger showing all thermodynamic parameters (P, T, etc.) Please show all steps of solution
A 130 L rigid tank initially contains nitrogen at 400 kPa, 100 K. Thetank is connected to a line which contains nitrogen at 10,000 kPa, 260 K.The valve is opened and nitrogen flows into the tank until half of thetank’s volume is filled with liquid nitrogen, at which point the valve isclosed. During the filling process heat is transferred from the tank tokeep the temperature constant at 100 K. Neglect KE and PE terms.Calculate the final pressure and quality, and the heat transferred inthe process.
The stream of air and gasoline vapour,in the ratio of 14:1 by mass, enters a gasoline engine at a temperature of 30C and leaves as combustion products at a temperature of 790C. The engine has a specific fuel consumption of 0.3kg/kWh.The net heat transfer rate from the fuel-air stream to the jacket cooling water and to the surroundings is 35kW.The shaft power delivered by the engine is 26kW.Compute the increase in specific enthalpy of the fuel-air stream, assuming the changes in kinetic and potential energy to be negligible.
The air conditions at the intake of an air compressor are 33 C, 50 percent relativehumidity, and 101 kPa. The air is compressed to 400 kPa, then sent to anintercooler. If condensation of water vapor from the compressed air is to beprevented, what is the minimum temperature (tdp) to which the air can be cooled inthe intercooler?Use theoretical calculation for this problem.
Boiler raises 3.7 kg of water per kg of coal from feed water at 54.5oC,to steam at the pressure of 34 bar and temperature of 370oC. Calculate the equivalentevaporation per kg of coal.