User Account

All Pages

Heat transfer, engineering, Other Engineering

Assignment Help:
A heat recovery device involves transferring energy from hot flue gases passing counter currently through an annular region to pressurized water flowing through the inner tube of the annulus. The inner tube has inner and outer diameters of 24 and 30 mm, respectively, and is connected by eight struts to an insulated outer tube of 60 mm diameter. Each strut is 3 mm thick and is integrally fabricated with the inner tube from carbon steel (k = 50 W/m K). Consider the situation for which water and flue gases enter the device at 300 K and 800 K, respectively. The flue gases may be assumed to have properties of air. The mass flow rate of water is 0.2 kg/s. The mass flow rate of flue gases at 1.0 kg/s. If the desired outlet temperature of the pressurized water is 350 K, determine:

i) The outlet temperature of flue gases
ii) The heat transfer coefficient at the water side
iii) The heat transfer coefficient at the air side
iv) The overall heat transfer coefficient based on the inside perimeter (Ui)
v) The required length of this heat recovery device
Hints: 1) The struts can be treated as rectangular fins with an adiabatic tip.
2) Assume a uniform heat transfer coefficient on the flue gas-side (ho).

Related Discussions:- Heat transfer, engineering

Manufacturing process, why is it necessary for all engieers to about manufa...

why is it necessary for all engieers to about manufacturing process

Lead time, Enumerate possible impact of having inadequate system design in ...

Enumerate possible impact of having inadequate system design in the lead time and engineering cost?

Grain ethanol plant design, Can you help me design a grain ethanol plant as...

Can you help me design a grain ethanol plant as a design project? I need help with mass and energy balances Key equipment design ie distillation column, heat exchanger, storage t

Bonds, Objective: Students should familiarize themselves with bonds and/or ...

Objective: Students should familiarize themselves with bonds and/or preferred stock as an investment opportunity and as a source of funds. In this assignment students will determin

Workshop management, give information on workshop organisations

give information on workshop organisations

Amplitude shift keying, figure of amplitude shift keying & it''s explainati...

figure of amplitude shift keying & it''s explaination

Radar systems, Radar Systems Radar is an acronym for RAdio Detection...

Radar Systems Radar is an acronym for RAdio Detection And Ranging.  A radar uses an antenna to transmit a series of electromagnetic waves or pulses, and an antenna (usual

Assignment #5, the date december 13, 2005. Air traffic controllers in a con...

the date december 13, 2005. Air traffic controllers in a control tower in

Risk Management, discuss the values of risk analysis and how it can help in...

discuss the values of risk analysis and how it can help in decision making of project management under conditions of uncertainty

Aerospace Engineering, Define the aircraft axes & degrees of freedom. Analy...

Define the aircraft axes & degrees of freedom. Analyse the different maneuvers that can be done by an aircraft.

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd