Power rating of electric heating element immersed in water

Assignment Help Mechanical Engineering
Reference no: EM13712186

Water is boiled at sea level in a coffee maker equipped with an immersion-type electric heating element. The coffee maker contains 1 L of water when full. Once boiling starts, it is observed that half of the water in the coffee maker evaporates in 25 minutes. Determine the power rating of the electric heating element immersed in water. Also, determine how long it will take for this heater to raise the temperature of 1 L of cold water from 18°C to the boiling temperature.

Reference no: EM13712186

Questions Cloud

Determine the amount of heat rejected : A fixed mass of saturated water vapor at 400 kPa is isothermally cooled until it is a saturated liquid. Perform a closed system, energy analysis (e.g. 1st Law analysis) on the system to determine the amount of heat rejected during this process in kJ/..
Compute the pump factor and volumetric pump efficiency : A double acting duplex with 6.5" liners, 2.5" rods, 18" stroke was operated at 3000 psig, 20 cycle/min for 10 minutes with section pit isolated from return mud flow. The mud level in the section put which is 7 ft wide and 20 ft long was observed to f..
Determine the rate of heat transfer between the pump : A 1.5 hP pump operating at steady state pumps water 100 ft up at a mass flow rate of 20,000 lb/hr. Assuming no change in the temperature of the water, determine the rate of heat transfer between the pump and the surroundings in Btu/hr. (g = 32 ft/s2)
Rate of heat rejection to the outside air via the condenser : R-134 enters the condenser of a window air conditioning unit at 800 kPa and 35 C and leaves as a saturated liquid at the same pressure. The compressor current draw is measured to be 5 amps at 240 V and the R-134 has a mass flow rate of 0.018 kg/s. If..
Power rating of electric heating element immersed in water : Water is boiled at sea level in a coffee maker equipped with an immersion-type electric heating element. The coffee maker contains 1 L of water when full. Once boiling starts, it is observed that half of the water in the coffee maker evaporates in 25..
Calculate the stagnation pressure and temperature : Air flows isentropic ally at the rate of 0.5 kg/s through a supersonic convergent-divergent nozzle. At the inlet, the pressure is 680 kPa. the temperature 295 K. and the area is 6.5cm^2. If the exit area is 13 cm*2,
Steam enters the turbine of a simple vapor power plant : Steam enters the turbine of a simple vapor power plant with a pressure of 10 MPa and temperature (T), and expands adiabatically to 6kPa. The isentropic turbine efficiency is 85%. Saturated liquid exits the condenser at 6 kPa and the isentropic pump e..
Maximum carbon content possible for a plain carbon steel : What is the maximum carbon content possible for a plain carbon steel that must have an impact energy of at least 200 J at -50°C?
Low-carbon steel-titanium alloys and alumminum alloys : Calculate the range of typical machining time for face milling a 10-in. long, 2-in. wide cutter with a depth of cut of 0.1-in , the cutter has 10 teeth .for the following work piece materials :1.low-carbon steel 2.titanium alloys 3.alumminum alloys

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Cylinder fitted with a piston containing

A cylinder fitted with a piston containing 1 kg of refrigerant 134a at 20C and 90% vapor quality is attached to a line flowing refrigerant 134a. The total restraining force on the piston is proportional to the cylinder volume squared. The valve is no..

  Helium is used to operate an 18 hp gas turbine the gas

helium is used to operate an 18 hp gas turbine. the gas enters the steady-flow device at 220 fts through an area of

  Estimate the extent of the laminar boundary layer flow will

an airplane flies at a speed of 539 mph at an altitude of 10000 ft. if the boundary layers on the wing surfaces behave

  10 kg of water in a piston cylinder exists as a saturated

10 kg of water in a piston cylinder exists as a saturated mixture at 120 kpa with quality 40. the water is now heated

  A magnetic brake system is used to slow the car to a speed

thecoaster cars are lifted up the initial hill which has a height of 85 feet and released at the top of the hill with a

  Two kilograms of air within a piston-cylinder assembly

two kilograms of air within a piston-cylinder assembly executes a carnot power cycle with maximum and minimum

  Express the finite difference formulation of the boundary

consider steady heat conduction in a plane wall whose left surface node 0 is maintained at 40 degrees c while the right

  Determine the angular acceleration a alpha of the hoop and

a metal hoop with a radius r6 in is released from rest on the 20 degress incline. if the coefficient of static and

  A certain factory manufactures tin cansit receive an order

a certain factory manufactures tin cans.it receive an order for 10000 cylindrical tin cans of height 5 inch and

  Calculate the steady rate of entropy production samp kjks

draw a complete schematic diagram show arrows symbols amp numeric values for each w amp amp q amp . consider the steady

  Assume frictionless flow through all piping and heat

a walk-in cooler using a vapor compression refrigeration cycle is configured as shown below. the cycle uses cfc22 or

  Determine the final volume and pressure

Air is expanded in a poly tropic process from a pressure and volume of 350 kPa and 0.03 m3 until its volume is increased by 6.667 times. The poly tropic process has an exponent n = 1.5

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