Ask Question, Ask an Expert


Ask Mechanical Engineering Expert

problem 1: A pot such made by Revere Copper ('Revereware') has two different metals composing the bottom of the pan- a stainless steel pan 'body' with a copper base formed to the pan on the outside or burner contact surface. Why do you think this is completed? Based on discussions in the book, do you think the heat transfer coefficient will be better with the copper bottom over the stainless steel pan, or is it there 'just for show'? Would a bare stainless steel pan really have a better heat transfer coefficient? Think this one through!                     
problem 2: Throughout a warmer winter or early spring day, wind at 40 deg.F is blowing at a speed of 40 mph parallel to the 12 foot high by 30 foot long wall of a house. Supposing the interior wall surface is 55 deg. F, find out the rate of heat loss via the wall by convection.
problem 3: You are working on a test using a 50 cm. long by 2 cm. diameter electric heating element. The element’s exterior surface is polished aluminum (much low emissivity). The heating wire in the element is placed at the center of the tube and runs the length of element. Both ends are fine insulated, so you are only concerned with what occurs at the cylinder surface. The element is powered with a constant 40 watt energy flow for the test period. If the surface temperature of the element is measured to be 120 deg.C and the surrounding air temperature is 20 deg. C, find out the natural convection heat transfer coefficient

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M91244

Have any Question? 

Related Questions in Mechanical Engineering

You need a reort if 10 pages and above the report about

You need a reort if 10 pages and above. the report about colorimeter specificly measuring spesific heat. anything you need will be provided. format sample has been will be provided. and a report sapmle will be provided t ...

There are 3 x 103 spheres in a box calculate the number of

There are 3 x 10 3 spheres in a box. Calculate the number of different combinations for the spheres in order to have 1100 spheres in the front third of the box. Assuming that the distribution is normal, calculate the pro ...

List three ways to control preload directly what are the

List three ways to control preload directly ? What are the advantages of a bonded ultrasonic transducer? What is sometimes cited as a disadvantage? Can torque be used to tighten a 6 in. diameter bolt? If not, why not? Na ...

Let the texturized si floating gate be modeled by

Let the texturized Si floating gate be modeled by semi-spherical hills. Calculate the radius of the hemisphere that would increase the write/erase time by 100 over the flat poly-Si/SiO2 interface. Use the Fowler-Nordheim ...

1 an ion with the configuration f 2 enters an environment

1. An ion with the configuration f 2 enters an environment of octahedral symmetry. What terms arise in the free ion, and with which terms do they correlate in the complex? 2. In the strong field case, the configuration d ...

1 identify the terms that may arise from the ground

1. Identify the terms that may arise from the ground configurations of the atoms of elements of Period 2 and suggest the order of their energies. 2. Find the first-order corrections to the energies of the hydrogen atom t ...

A water-filled u-tube manometer is used to measure the

A water-filled U-tube manometer is used to measure the pressure inside an air tank. The water level in the U-tube on the side connected to the tank is 5 ft above the base of the tank. The water level in the other side of ...

Major assignment employment outlook reportin the groups

Major Assignment: Employment Outlook Report In the groups from your previous assignment, research the employment outlook for your future profession. Present your findings as a formal research report that academic advisor ...

A for the system of fig 347 the resistance of each line

a. For the system of Fig. 3.47, the resistance of each line cannot exceed 0.006 Ω, and the maximum current drawn by the load is 110 A. What gage wire should be used? b. Repeat (a) for a maximum resistance of 0.003 Ω, d = ...

The shear-force diagram for a beam is shown assuming that

The shear-force diagram for a beam is shown. Assuming that only forces (not applied moments) act on the beam, determine the beam's loading and draw the bending moment diagram

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro