Problem 2: In Multi-Effects Desalination (MED) system composed of 4 effects, and 3 feed preheaters and...

Problem 2: In Multi-Effects Desalination (MED) system composed of 4 effects, and 3 feed preheaters and down condenser. List the following: a- The mass balance in the evaporator, feed preheater and down condenser b- The energy balance in the evaporator, feed preheater and down condenser c- The Material balance in the first effect d- The temperature profile of the feed if the intake temperature is 25ºC and temperature of last effect is 40ºC and the temperature of first effect is 60ºC e- What will happen to the transfer area of the evaporator if the motive steam temperature is increased to 100ºC where the rest is remaining constants.

Expert Solution

samet mamat answered 4 months ago

In Multi-Effects Desalination (MED) system composed of 4 effects, and 3 feed preheaters and down condenser....

In Multi-Effects Desalination (MED) system composed of 4 effects, and 3 feed preheaters and down condenser. List the following: a- The mass balance in the evaporator, feed preheater and down condenser b- The energy balance in the evaporator, feed preheater and down condenser c- The Material balance in the first effect d- The temperature profile of the feed if the intake temperature is 25ºC and temperature of last effect is 40ºC and the temperature of first effect is 60ºC e-...

A single stage RO desalination system has the following design data: -6 3 2 - Water...

A single stage RO desalination system has the following design data: -6 3 2 - Water permeability = 2.05xl0 m /m .s.kPa -5 3 2 - Salt permeability = 2.03x10 m /m .s - Feed salinity = 38,500 ppm - Feed flow rate = 3.0 kg/s - Permeate flow rate = 1.0 kg/s - Feed pressure = 6,600 kPa - Reject pressure = 6,350 kPa - Permeate pressure = 101 kPa Calculate permeate salinity, brine salinity, brine flow rate, and...

Problem 4 [25 pts]. (It is the same physical system as in the Problem 3) A...

Problem 4 [25 pts]. (It is the same physical system as in the Problem 3) A hoop of mass M=400.g and radius R=20.0 cm is rolling without slipping in clockwise direction down an incline plane with the incline angle ? = 20? . 1. How much work is done by frictional force acting on the hoop on (1) translation, (2) rotation of the hoop? Show all work so that your final answer is justified. 2. How much is ???ℎ?? on...

A system is composed of 4 components:➢The performance of 5% of the system can be doubled....

A system is composed of 4 components:➢The performance of 5% of the system can be doubled. We will call this part component 1➢The performance of 20% of the system can be improved by 80%. We will call this part component 2➢The performance of 45% of the system can be improved by 50%. We will call this part component 3.The performance of the remaining of the system cannot be improved. We will call this part component 4Using Amdahl's law, which component...

Problem 1 ✓ Problem 2 Problem 3 ✓ Problem 4 … Problem 5 … Problem 6...

Problem 1 ✓ Problem 2 Problem 3 ✓ Problem 4 … Problem 5 … Problem 6 ✓ Problem 7 Problem 8 Problem 9 close sidebar webwork / f2019stat213 / stat_213_assignment_3 / 5 STAT 213 Assignment 3: Problem 5 Previous Problem Problem List Next Problem (1 point) To examine the effectiveness of its four annual advertising promotions, a mail order company has sent a questionnaire to each of its customers, asking how many of the previous year's promotions prompted orders that...

2 . Problems 22-5 Consider the effects of inflation in an economy composed of only two...

2 . Problems 22-5 Consider the effects of inflation in an economy composed of only two people: Van, a bean farmer, and Amy, a rice farmer. Van and Amy both always consume equal amounts of rice and beans. In 2016 the price of beans was $5, and the price of rice was $3. Suppose that in 2017 the price of beans was $10 and the price of rice was $6. Inflation was ________% . Indicate whether Van and Amy were...

Problem 4. Boral is the material composed of 50 % Al, 40 % B, and 10...

Problem 4. Boral is the material composed of 50 % Al, 40 % B, and 10 % C by weight. Its density is 2.56 g/cm3. A beam of 0.025-eV neutrons with intensity of 5´106neutrons/(cm2×s) strikes a target of 2.5 cm2 in area made of the boral. Calculate the atom densities of Al, B, and C in boral. Calculate the macroscopic cross-sections Sa, Ss, and St for boral at the neutron energy 0.025 eV. How thick must the boral target be...

A statistical system is composed of N particles with spin 1 2 , immersed in a...

A statistical system is composed of N particles with spin 1 2 , immersed in a magnetic field H. The particles are fixed in their positions and possess a magnetic moment µ. The Hamiltonian of such a system is H = −µH X N i=1 σi where σi = ±1 (a) Given that the separation between the spins in the lattice is larger than their de Broglie wavelength, should the spins be treated as distinguishable or indistinguishable particles? (b) Write...

Consider the LP problem below: Minimize: ? = −2? + ? Subject to: 3? + 4?...

Consider the LP problem below: Minimize: ? = −2? + ? Subject to: 3? + 4? ≤ 80 −3? + 4? ≥ 8 ? + 4? ≥ 40 a) Solve the above problem using the simplex method of solution. b) Comment on the nature of solution to the above problem and hence, interpret your answer this is a quantitative method for decidion making question. Linear programing problems using simplex tableau method

SE-FamilySize 1 1 4 3 2 4 2 3 4 2 4 1 4 2 2...

SE-FamilySize 1 1 4 3 2 4 2 3 4 2 4 1 4 2 2 4 5 4 5 4 4 2 4 3 1 2 3 5 5 5 Make a confidence interval. Be sure you show all the steps you took. Include a screen shot of any applet you used in your calculations. 2. Choose a confidence level (1 – α). 3. What is xbar? 4. What is s? 5. What is t? (Show a screen shot...

Question