Question: In order to maintain pump power requirements per unit flow rate below an acceptable level, operation of the oil pipeline of the preceding problem is

In order to maintain pump power requirements per unit flow rate below an acceptable level, operation of the oil pipeline of the preceding problem is subject to the constraint that the oil exit temperature Tm,o exceed 110°C. For the values of Tm,j Ts, D, ti, z, L, and k; prescribed in Problem 8.63, operating parameters that are variable and affect Tm,o are the thermal conductivity of the soil and the flow rate of the oil. Depending on soil composition and moisture and the demand for oil, representative variations are 0.25 < ks < 1.0 W/m ∙ K and 250 < mo < 500 kg/s. Using the properties prescribed in Problem 8.63, determine the effect of the foregoing variations on Tm,o and the total heat rate q. What is the worst case operating condition? If necessary, what adjustments could be made to ensure that Tm.o > 110°C for the worst case conditions?

Step by Step Solution

★★★★★

3.50 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

KNOWN Length diameter insulation characteristics and burial depth of pipe Ground surface temperature Inlet temperature minimum allowable exit temperat... 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 (1 attachment)

8-E-M-E-H-M-T (763).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

Explain what Connie must prove in order to maintain a claim for sexual harassment and constructive discharge.

Historically, in order to maintain quality control over munitions (bullets) produced by an assembly line, the manufacturer would use a ballistic pendulum to determine the muzzle velocity of a gun,...

In order to maintain a speed v on a horizontal road a car must supply enough power to overcome air resistance. That required power goes up with increasing speed according to the formula: P = Power in...

To maintain pump power requirements per unit flow rate below an acceptable level, operation of the oil pipeline of Problem 8.63 is subject to the constraint that the oil exit temperature T m,o exceed...

uantitative Analysis BA 452 Homework 3 Questions Homework 3 covers the theory and applications in Lessons I-6 and I-7. This document has four parts: Objectives of doing your homework. Assignment of...

financial SUBDOMAINS: 325.4 COMMUNICATING EFFECTIVELY IN ORGANIZATIONS 326.1 MANAGING INTERNAL COST & CONTROLLING FINANCES 326.2 MANAGING CAPITAL & FINANCIAL ASSETS 326.4 MANAGING ENTERPRISE RISK &...

Final Paper Instructions/Guidelines: The final paper must be a minimum of 5 pages and a maximum of 7 pages in APA format. You can find APA guidelines in the Week Six folder under final paper tips....

Question: Compare how the strategy for lean manufacturing and Kencos system lead to unique production and information systems. Include in your discussion the design characteristics underlying each...

Question: How would cost-plus pricing change continuous improvement at Kenco? (10 marks) Compare and explain fully the strategic and operational implications of cost-plus pricing versus Kencos...

Question: Kencos organizational design borrows ideas from both lean management and the Theory of Constraints. Describe the unique characteristics of Kencos design and accounting system that are...

The adjusted trial balance of Harmony Company at December 31, 2010, includes the following accounts: S. Harmony, Capital $15,600; S. Harmony, Drawing $6,000; Service Revenue $35,400; Salaries Expense...

Prove that if A is an invertible lower triangular matrix, then A-1 is lower triangular.

( 2 0 points ) ( a ) Find the following limits: i . lim x 0 s i n 3 x s i n 5 x ii . lim x 0 e 3 x - 1 x ( x 2 - 4 ) ( b ) State ( but do not prove ) the epsilon - delta definition of lim x 0 s i n (...

Which statement is false about posting? O Accounts numbers are written in the reference column of the journal. O The explanation space of the ledger account is used infrequently. O Posting is...

QUESTIONS 1. what is the budgeted cash receipts for the month of may 2.What is the budgeted cash disbursements for inventory purchases for the month of may 3. What is the budgeted cash disbursements...

(1 point) Suppose f(x, y) = x + y and D is the closed triangular region with vertices (4, 0), (0, 4), and (0, 4). Answer the following. 4x - 1. Find the absolute maximum of f(x, y) on the region D....

Jackson Tucker withdraws $2700 cash from his business for personal use. The journal entry for this transaction will include a credit of $2700 to O Owner's Drawings. O Owner's Capital. O Owner's...

For the following annual data of the electrical company producing 25,000 electrical bulbs, calculate the selling price of each electrical bulb. No. of workers= 10 Working wage= $10,000 Material cost...

P4-48B Comprehensive ABC (Learning Objectives 2 & 3) Axis Systems specializes in servers for work-group, e-commerce, and enterprise resource planning (ERP) applications. The companys original job...

What values of capacitance can be obtained by interconnecting a 4-F capacitor, a 6-F capacitor, and a 12-F capacitor?

Given a 1, 3, and 4-F capacitor, can they be interconnected to obtain an equivalent 2-F capacitor?

Given four 2-F capacitors, find the maximum value and minimum value that can be obtained by interconnecting the capacitors in series/parallel combinations.

S \& C Company issues 2,000 shares of its no - par common stock. The issue price of the stock is $19.00 per share. What is the journal entry required to record the issuance of the shares

please dont answer it on excel and provide the formulas if needed Values Values Accounts Payable & Accruals $300 Short-term notes $150 $150 Long-term debt $450 S600 Preferred Stock $75 SIS Common...

Compute the Payback statistic for Project X and recommend whether the firm should accept or reject the project with the cash flows shown below if the appropriate cost of capital is 11 percent and the...