Question: A process control engineer has decided to install an automated shower control system in a bathroom of her mansion. The design calls for a system

A process control engineer has decided to install an automated shower control system in a bathroom of her mansion. The design calls for a system that can deliver 3 gal/min of water at 110^∘F by mixing hot water at 140^∘F, with colder water at 70^∘F. Flow and temperature transmitters are available along with control valves for adjusting the hot and cold water ﬂow rates.
(a) Calculate the required ﬂow rates of hot and cold water, assuming that the density and heat capacity of water are constant.
(b) Calculate the relative gain array for the system, and recommend a pairing of controlled and manipulated variables.

Step by Step Solution

★★★★★

3.48 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The process scheme is shown below a Steady state material balance ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (2 attachments)

1602_606321ef1b59c_683262.pdf

180 KBs PDF File

1602_606321ef1b59c_683262.docx

120 KBs Word File

Students Have Also Explored These Related Process Dynamics Control Questions!

Your state has recently decided to install an RFID system for its toll roads. The current plan is to sell non-refundable transponders for $20 and allow users to deposit up to $1,000 in their...

NZ Ltd has decided to install a new item of plant, which will cost $500,000. The following alternative financing arrangements are available: Purchasing finance by borrowing Amount borrowed $500,000...

A heat exchanger is used to heat cold water at 15C entering at a rate of 2 kg/s by hot air at 100C entering at a rate of 3 kg/s. The heat exchanger is not insulated and is losing heat at a rate of 40...

A process control engineer has decided to install an automated shower control system in a bathroom of hr mansion. The design calls for a system that can deliver 3 gpm of water at 110F by mixing hot...

Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...

Companies can intentionally commoditize their products or services as a strategy to make money. Discuss using these two different cases below how companies can intentionally commoditize their...

12 Chapter A4148 23218 6/8/01 6:25 PM Page 361 12Initiating Objectives After reading this chapter, you will be able to: 1. Understand the importance of initiating projects that add value to an...

PROJECT SCOPE [Instructions for what to include in this section: Define the scope of work that will be undertaken to provide the deliverable(s) mentioned in the Project Charter (PC). Craft this...

Questions imagine you are an OD consultant that has been called to figure out the issues in Namaste Solar. 1. What are the presenting and underlying problems? 2. What are the data gathering plans...

Based on the reading of the case, carefully explore the following questions faced by Salsgiver (pg. 1): 1. How many of Arrow's customers were likely to switch some of their purchases to Express? (Use...

2 +12 10. lim x-6 x+6

Consider a production function of two inputs, labor and capital, given by Q = (L + K)2. The marginal products associated with this production function are as follows: Let w = 2 and r = 1. a) Suppose...

An investor holds a Ford bond with a face value of $ 5 0 0 0 , a coupon rate of 8 . 5 % , and semiannual payments that matures on 0 1 / 1 5 / 2 0 2 9 . How much will the investor recelve on 0 1 / 1 5...

During ambulation, assess clients tolerance of activity.

Estimate the average speed with which the hair on your head grows. Give your answer in both m/s and mm/hour. Briefly describe how you arrived at this estimate?

Motor neurons in mammals transmit signals from the brain to skeletal muscles at approximately 25 m/s. Estimate how long in ms it takes a signal to get from your brain to your hand?

A Porsche accelerates from a stoplight at 5.0 m/s 2 for five seconds, then coasts for three more seconds. How far has it traveled? Draw a complete pictorial representation. Do not solve these...

Zambezi Corp. expects EBIT to vary with the state of the economy as follows: 560 State of economy EBIT in $ million) Boom Base 125 Bust -200 Zambezi doesn't have any long-term debt and has 95 million...

Case 1 Case 2 Case 3 Direct material used 20,000 12,300 Direct labor 11,000 Manufacturing overhead applied 12,000 Total current manufacturing costs 29,000 28,500 Beginning work in process inventory...

Today you go long on 4 December contracts of lean hog futures, at a price of 6 6 . 6 cents per pound. One contract is for 4 0 K pounds. One month later, December futures are trading at 5 6 . 7 cents...