User Account

All Pages

Estimate the average die temperature

Assignment Help Mechanical Engineering
Reference no: EM132416656

Problem: In a die-casting operation, 0.1 kg charges of molten zinc alloy at 410 degrees C are injected at a rate of 120 charges per hour. The liquid metal has a specific heat of 480 J/kg^-1/K^-1 and a freezing temperature of 400 degrees C. The latent heat of solidificatino of the alloy is 110,000 J/kg^-1. The casting is ejected from the die as soon as it is solid. The insulated die is water cooled at a rate C (Td-T0), where Td is the dye temperature, T0 = 20 degrees C and C has a value of 5 J/s^-1/K^-1. Estimate the average die temperature after a long period of steady operation.

Reference no: EM132416656

Questions Cloud

Calculate the free work available to drive recrystallization : Calculate the free work available to drive recrystallization of cold-worked aluminum with a dislocation density of 10^15 m^-2.
Did the study address a clearly focused issue : Did the study address a clearly focused issue? Did the authors use an appropriate method to answer their question? Were the cases recruited in an acceptable way
Calculate the buckling loads for the 5 ft-long columns : Calculate the buckling loads for the 5 ft-long columns made of 6061-T6 aluminum alloy having a solid, square cross section with 2-inch sides
Calculate in units of btu the amount of heat : If the engine produces 100 hp of mechanical work, calculate in units of Btu the amount of heat that must be supplied to the engine each hour.
Estimate the average die temperature : Estimate the average die temperature after a long period of steady operation.
PUBH6005 Epidemiology Assignment Problem : PUBH6005 Epidemiology Assignment Help and Solution - Laureate International Universities, Australia. Table 3 - Randomised controlled trial
What is the nominal rate at which energy must be extracted : If 10 rods of length L=1 m are processed per hour, what is the nominal rate at which energy must be extracted from the bath (the cooling load)?
Estimate how long must they remain in the furnace to achieve : Carbon steel (AISI 1010) shafts of 0.1-m diameter are heat treated in a gas-fired furnace whose gases are at 1200 K and provide a convection coefficient
What is the heat loss per fin : If 200 such fins are spaced at 5-mm increments along the tube length, what is the heat loss per meter of tube length?

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Find the magnitude of the acceleration vector

At a certain instant the speed of P is v and its acceleration vector makes an angle α with P O. Find the magnitude of the acceleration vector at this instant.

  In many countries in south america chunks of cassava root

in many countries in south america chunks of cassava root containing 65 percent water are dried to 5 percent water then

  Determine the velocity of on the outer rim of the spool at

determine the velocity of on the outer rim of the spool at the instant shown when the cable is pulled to the right with

  Advantages of chopper drives compared with the resistance

The chopped current passes through a free-wheeling diode back to the power supply. The chopping interval and chopping frequency are adjustable. Discuss the advantages of chopper drives compared with the resistance drive method.

  For the water determine a the quality at the initial state

a closed rigid tank is filled with water. initially the tank holds 9.9ft3 saturated vapor and .1ft3 saturated liquid

  Calculate a value for its atomic mass

The lattice constant for BCC tantalum at 20oC is 0.33026 nm and its density is 16.6 g/cm3. Calculate a value for its atomic mass.

  What is the magnitude of the net force

A truck weighs 3300 lb. What is the magnitude of the net force (lb) required to accelerate it at a constant rate of 5 ft/s2? The acceleration of gravity is g = 32.2 ft/s2.

  Simple inverting comparator circuit with hysteresis voltage

Design a simple inverting comparator circuit with a hysteresis voltage of 120 mv and adnominal threshold of +2.5 V. indicate component volues. A sensor provides temperature data as 360 mv/ c. Develop a comparator circuit that goes high when the tempe..

  A laboratory furnace wall is constructed of 020m thick

a laboratory furnace wall is constructed of 0.20m thick fireclay brick having k11.2 wm-degc. this is covered on the

  Calculate the declination zenith angle and the azimuth angle

Calculate the declination, the zenith angle, and the azimuth angle of the sun for New York City (latitude 40.77°N) on October 1 at 2:00 p.m. solar time.

  A cylinder has 01 kg air at 25oc 200 kpa with a 5 kg piston

a cylinder has 0.1 kg air at 25oc 200 kpa with a 5 kg piston on top. a valve at the bottom is opened to let the air out

  A 06-m-diameter hemispherical plexiglass bubble is to be

a 0.6-m-diameter hemispherical plexiglass bubble is to be used as a special window on the side of an above-ground

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