thermodynamics, Mechanical Engineering

Assignment Help:

Q2 A 3kW electric water heater is a cylindrical element having outside diameter 10mm. The heat transfer between the heater and the surrounding water is 980W/m2K.
Determine the length of the heater if the surface temperature must not exceed 95oC when the water is at 65oC.

The element comprises an electric resistance heater, diameter 2mm in the centre of the 10mm diameter stainless steel tube which has a wall thickness of 1mm. The gap between the resistance heater and the inside of the tube is packed with a ceramic material, Thermal conductivity 2W/mK.

Determine the temperature of the electric heater element. You may assume that the heater element is at uniform temperature and the thermal resistance between the element and the ceramic is negligible. The thermal conductivity of the stainless steel is 16W/mK
3 marks



Related Discussions:- thermodynamics

EM2013KEN2401MECH, Hi. I have made a payment for the above ticket number. W...

Hi. I have made a payment for the above ticket number. Will I get all the workings out too? [email protected]

MATLAB CODE, I NEED A GENERALIZED CODE FOR VAPOUR COMPRESSION REFRIGERATION...

I NEED A GENERALIZED CODE FOR VAPOUR COMPRESSION REFRIGERATION SYSTEM?

Explain clamping devices, Explain Clamping Devices A clamp is a d...

Explain Clamping Devices A clamp is a device that holds the work piece firmly against the locators provided and also resists all forces generated by the cutting action of

Objectives of entrepreneurship development , Objectives After studying...

Objectives After studying this unit, you should be able to weigh the merits and demerits of becoming an entrepreneur, discuss the opportunities and financial assis

General electric research laboratory, General Electric Research Laboratory:...

General Electric Research Laboratory: Philip Kennicott joined the General Electric Research Laboratory in the year 1961 where he made contributions in the fields of x-ray crys

Rigid body and momentum, Rigid body and Momentum: Body : A body consi...

Rigid body and Momentum: Body : A body consists of a Number of particles, it has definite shape. Rigid body :   A rigid body can be defined as the combination of a large

Pliers tool and equipment , Pliers: Pliers are used just for gripping or w...

Pliers: Pliers are used just for gripping or wire cutting and should never be used as substitute for spanners. The following types of plier are used : (a) Side cutting pliers

Calculate the magnitudes of the force, The end gates of a lock are 5m high ...

The end gates of a lock are 5m high and when closed include an angle of 120 o . The width of the lock is 6.25 m. Each gate is carried on two hinged placed at the top and the bottom

Write Your Message!

Captcha
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!

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