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

Define of intake and exhaust valve, defination .

defination .

machine molding, Machine molding is suitable for the faster and uniform qu...

Machine molding is suitable for the faster and uniform quality moulds, needed for mass production of castings. For preparing the moulds, various moulding machines are used. Majorit

Standard cost, Standard cost of the product

Standard cost of the product

Assignment , I want help for the circuit theory

I want help for the circuit theory

Java, 2. Differentiate between stream oriented and data gram oriented socke...

2. Differentiate between stream oriented and data gram oriented socket in java?

Infiltration enters, ways via which infiltration enters a sewer system

ways via which infiltration enters a sewer system

Synchro resolvers for high load, Synchro resolvers for high load The re...

Synchro resolvers for high load The receiver rotor is driven by an electric motor to a null position, i.e. the receiver coil will be aligned at 90 o  to the transmitter coil. A

Homework, Please explain how risk is taken into account for a financial ins...

Please explain how risk is taken into account for a financial instrument

Corporate Strategy, Corporate Strategy Strategy In our earlier discussion...

Corporate Strategy Strategy In our earlier discussion, we made distinctions between merger and acquisition or takeover. However, they generally involve similar analyses and evalu

The decoupled dynamics, The longitudinal and lateral states of the decouple...

The longitudinal and lateral states of the decoupled linear dynamics are distinct sets of variables. They are conveniently remembered by the flight-control engineer by visualising

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