Question: A heat exchanger is to be designed to heat a flow of molten bismuth from 377?C to 477?C. The heat exchanger consists of a 50

A heat exchanger is to be designed to heat a flow of molten bismuth from 377?C to 477?C. The heat exchanger consists of a 50 mm ID tube with surface temperature maintained uniformly at 500?C by an electrical heater. Find the length of the tube and the power required to heat 4 kg/s and 8 kg/s of bismuth.GIVENSMolten Bismuth flows through a tubeBismuth temperature: Inlet (Tb,in) = 377?C Outlet (Tb,out) = 477?CTube inside diameter (D) = 50 mm = 0.05 mSurface temperature (Ts) = 500?CASSUMPTIONSSteady stateUniform and constant surface temperatureLosses from the heater arenegligible

T.- 500C Blemuth Tain = 377C m =4 kg/s D-0.05 m Toout =477C 8 kg/s or L-?

Step by Step Solution

★★★★★

3.49 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

At m 4 kgs the Reynolds number is Re Pr 76070 0013 989 The... 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)

66-E-M-E-H-M-T (1767).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

Frank Thompson operates a small business that manufactures oversized backyard games. He runs the business as a sole proprietorship. The company uses a job order cost system using a first-in,...

A heat exchanger is to be designed to condense 600 kg/h of steam at atmospheric pressure. A square array of four hundred 1.0-cm-diameter tubes is available for the task, and the tube wall temperature...

An air-to-water compact heat exchanger is to be designed to serve as an intercooler for a 5,000 hp gas turbine plant. The exchanger is to meet the following heat transfer and pressure drop...

A shell-and-tube counterflow heat exchanger is to be designed for heating an oil from 80 to 180?F. The heat exchanger has two tube passes and one shell pass. The oil is to pass through 1 1/2-in....

What is the beta of the Hawkeye Furniture Store (HF)? Standard deviation of HF = 15.4 Correlation (rho) between HF and the S&P 500 -0.8 Covariance between HF and the S&P 500 = 210

Design a shell - and - tube exchanger for the following duty: A heat exchanger is to be designed to heat raw water by the use of condensed water at 7 0 \ deg C and 0 . 2 bar, which will flow with a...

Solve the optimization problem max f(x,y) = 335 x1/4 y1/6 - 4x-6y x,y and enter below the optimal value of y. Answer:

1 . Sizing of a Double - Pipe Heat Exchanger: A double - pipe heat exchanger has to be designed for a waste - heat recovery application, in which water, with a flow rate of \ ( 0 . 3 \ mathrm { ~kg }...

Need help with my Hw please .......... ....................... ChE 350 Problem Set 11 Due Thursday April 14, 2016 Supplementary Reading: Chapter 11 in Bergman 1. A heat exchanger is currently used to...

Answer full question A hot gas stream at 150C is to be cooled to 60C by exchanging it against a 20kg/s stream of cooling water available at 10C. The exchanger contains 240 steel tubes, 21 mm i.d.,...

Calculation task: Heat transmission 30 C 20 C DC 1.DC T= ? C 90 C Figure 2.1 Sketch of 1-1 pipe bottom heat exchanger. A heat exchanger must be replaced at a factory. For the heat exchange, a 1-1...

Explain the role of the Canadian Accounting Standards Board (AcSB) in establishing generally accepted accounting principles.

A leading firm requires a software for its internal use. The firm wants to evaluate whether it is less costly to have its own programming staff and resources or to have programs developed by an...

Find an equation of the plane. the plane that passes through ( 8 , 0 , 4 ) and contains the line x = 4 4 t , y = 1 + 5 t , z = 1 + 2 t

Shelli graduates from the University of South next month on her 25 th birthday, and she is excited to begin her new career. Because she wants to have a comfortable living when she retires, Shelli has...

The Timber Ridge Company has the following relationships: Sales/Total assets = 3.71; ROA = 0.1100 What is Timber Ridges net profit margin?

The Blending Department of Luongo Company has the following cost and production data for the month of April. Units transferred out totaled 20,740. Ending work in process was 1,220 units that are 100%...

Number 10.11, 10.12 . Please help me Figure P 10.10 10.11. In Problem 10.10, if the masses are not point masses but are spheres Of finite sizes, what changes 10.12. Draw lines of force and...

Number 10.27 . Please help me gle 0 Taxis, similar to fig. P 1023. that r R, and expand die for the ptenda-L kping Only the terms in R)h. Graph V(r) nd g(r). 107. Considet a diat has a cyiindril...

What is a potential problem with a temporary tax increase designed to increase aggregate demand if people know that it is temporary?

Saturated methyl chloride at 430 kPa (abs) condenses on a horizontal 10 10 bank of tubes. The 5-cm- OD tubes are equally spaced and are 10 cm apart center-to- center on rows and columns. If the...

A vertical, rectangular water duct 1 m high and 0.10 m deep shown in the sketch is placed in an environment of saturated steam at atmospheric pressure. If the outer surface of the duct is about 50C,...

In space-based systems, such as the International Space Station, for example, highly efficient cooling systems are deployed that involve force convection boiling. In a laboratory experiment to...

In this problem you will be calculating compound interest on 4 different deposit amounts. For each deposit amount, you will calculate the value of the deposit using 2 different interest rates...

You are a consultant to a firm evaluating an expansion of its current business. The cash-flow forecasts (in millions of dollars) for the project are as follows: Years Cash Flow 0 100 110 + 18 On the...

On August 1 , 2 0 2 2 , Colombo Company's treasurer signed a note promising to pay $ 1 2 3 , 0 0 0 on December 3 1 , 2 0 2 2 . The proceeds of the note were $ 1 1 4 , 9 0 0 . c . 1 . Use the...