Concept explainers
(a)
Interpretation:
A flowchart for the given process is to be drawn and labelled. The validation of the given statement that subsystem containing the point where the bypass stream splits off from the evaporator feed has one degree of freedom is to be stated. The degree of freedom analysis for the overall system, the evaporator, bypass-evaporator product and the mixing point is to be predicted. The equations to determine all unknown stream variable are to be shown. The variable in each equation is to be circled.
Concept introduction:
The evaporation is a process that aids in the conversion of a liquid into gas due to rise in temperature. The process of evaporation becomes faster with the increase in surface area because it permits the liquid molecules to acquire more heat. It results in the increase in kinetic energy of molecules, which aids to overcome of attractive forces between molecules of liquid.
In reverse osmosis, the solvent passes in the opposite direction to that of osmosis.
(b)
Interpretation:
The amount of product produced per
Concept introduction:
The evaporation is a process that aids in the conversion of a liquid into gas due to rise in temperature. The process of evaporation becomes faster with the increase in surface area because it permits the liquid molecules to acquire more heat. It results in the increase in kinetic energy of molecules, which aids to overcome of attractive forces between molecules of liquid.
In reverse osmosis, the solvent passes in the opposite direction to that of osmosis.
(c)
Interpretation:
The possible drawbacks for the given proposal are to be stated.
Concept introduction:
The evaporation is a process that aids in the conversion of a liquid into gas due to rise in temperature. The process of evaporation becomes faster with the increase in surface area because it permits the liquid molecules to acquire more heat. It results in the increase in kinetic energy of molecules, which aids to overcome of attractive forces between molecules of liquid.
In reverse osmosis, the solvent passes in the opposite direction to that of osmosis.

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Chapter 4 Solutions
ELEM PRINC CHEM (LL) W/EBOOK
- A flat-sheet membrane of thickness, L, and surface area, S, separates two fluids (see figure). The concentration on the upstream side is maintained at C_A0 while that on the downstream side is maintained at zero. The membrane is loaded with an immobilized enzyme that converts substrate A to product B according to a zero order reaction mechanism given by:R_A=-k_0"' (d) What is the flux, N_A, at the downstream surface (z=L)? (e) Under what condition will the flux at z=L be equal to zero? (f) At the condition in (e), what can you say about the diffusion time relative to the reaction time?arrow_forwardDevelop a purification train for a facility where first process is a perfusion upstream bioreactors 500L producing low cell culture titer of approx. 0.5 g/L perfusing at 2 VVD over 30 days. The current facility has a secondary clarification process for the perfusate coming from the bioreactor. Secondary depth filtration clarification capacity of 200 L/m2. Identify the correct filter area, and system (pump) requirements for the process scale. Also identify optimal flowrates for flushing and processing, total process time, buffer volumes required. Assume 10 L/m2 holdup of the depth filters identify the size of the tank required to collect the filtrate. Average yield of overall clarification is 80% estimate the titer in the clarified pool.arrow_forwardBioprocessing/ Protein isolation and purification. Develop a purification train for a facility where first process is a perfusion upstream bioreactors 500L producing low cell culture titer of approx. 0.5 g/L perfusing at 2 VVD over 30 days. The current facility has a secondary clarification process for the perfusate coming from the bioreactor. Secondary depth filtration clarification capacity of 200 L/m2. Identify the correct filter area, and system (pump) requirements for the process scale. Also identify optimal flowrates for flushing and processing, total process time, buffer volumes required. Assume 10 L/m2 holdup of the depth filters identify the size of the tank required to collect the filtrate. Average yield of overall clarification is 80% estimate the titer in the clarified pool.arrow_forward
- Homework 8 View Policies Show Attempt History Current Attempt in Progress Question 3 of 5 Entering Steam > > Check table lookups for correct values. Check significant figures. Check unit conversions. Calculate the required flow rate of the entering steam in m³/min. 0.00132 m³/min eTextbook and Media Hint 0/1 Assistance Used Determine the specific enthalpy change of each stream first. Then use the known flow rate of the methanol to calculate the steam flow rate. Save for Later Heat Transferred × Check units and significant figures. Calculate the rate of heat transfer from the water to the methanol (kW). i 44.5 kW Hint Don't forget to convert minutes to seconds. Save for Later Attempts: 3 of 5 used Submit Answer Assistance Used Attempts: 2 of 5 used Submit Answerarrow_forward← Homework 8 View Policies Show Attempt History Current Attempt in Progress A liquid mixture of benzene and toluene containing 52.0 wt% benzene at 100.0 °C and pressure Po atm is fed at a rate of 32.5 m³/h into a heated flash tank maintained at a pressure Ptank Material Balances Correct. 0.67/1 === Attempts: 1 of 5 used Calculate Ptank (atm), the mole fraction of benzene in the vapor, and the molar flow rates of the liquid and vapor products. Ptank .544 atm Ybz .657 mol benzene/mol vapor product nvapor 55.8 mol/s nliquid 37.6 mol/s Hint GO Tutorial Energy Balance Check heat capacities. Calculate the required heat input rate in kilowatts. i 0.447 kW Hint GO Tutorial Save for Later Assistance Used Attempts: 2 of 5 used Assistance Used Attempts: 1 of 5 used Submit Answerarrow_forwardView Policies Show Attempt History Current Attempt in Progress Homework 8 A stream of pure cyclopentane vapor flowing at a rate of 1650 L/s at 190.0°C and 1 atm enters a cooler in which 50.0% of the feed is condensed at constant pressure. Question 4 of 5 Correct What is the temperature at the condenser outlet? 49.3 °℃ eTextbook and Media Hint Enthalpy Table Your Answer Correct Answer (Used) 0.67/1 E Attempts: 1 of 5 used Prepare and fill in an inlet-outlet enthalpy table. Use a reference state of liquid cyclopentane at the boiling point. In T = 190.0°C Out T=49.3°C Substance n (mol/s) Ĥ (kJ/mol) n (mol/s) Ĥ (kJ/mol) C5H10(1) 0.0 21.708 0.0 C5H10(V) 43.416 43.687 21.708 27.30 Heat Check significant figures and sign. Calculate the required cooling rate (a positive number). ! kW Hint Save for Later Attempts: 3 of 5 used Submit Answerarrow_forward
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