The equivalent evaporation (kg/hr) of a boiler producing 2000 kg/hr of steam with enthalpy content of 2426 kJ/kg from feed water at temperature 40°C (liquid enthalpy = 168 kJ/kg) is (enthalpy of vaporization of water at 100°C = 2258 kJ/kg) %3D %3D

The equivalent evaporation (kg/hr) of a boiler producing 2000 kg/hr of steam with enthalpy content of 2426 kJ/kg from feed water at temperature 40°C (liquid enthalpy = 168 kJ/kg) is (enthalpy of vaporization of water at 100°C = 2258 kJ/kg) %3D %3D

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

1. A car is able to provide 300kW of tractive power, as it accelerates from 36 to 288km/hr, along a flat and level section of road. This is achieved in 2 seconds. a) Calculate the tractive force at 36km/hr.
Joe takes his little brother Andy down the the playground for an afternoon out. Andy would like to ride the seesaw, but the difference in their sizes, Joe weights 160lbs and Andy weighs 641lbs, makes this difficult. Joe sees a solution from his engineering class and moves the fulcrum from the middle to a new place. The seesaw is 3.5m long. After Joe moved the fulcrum how long was the seesaw on Joe's side?
An electric hot water heater consumes 3.1 kilowatts of electricity and converts it to heat. How long will it take the water heater to heat a 67 gallon tank of water from 10 degrees Celsius to 50 degrees Celsius? (1 kilogram of water is 0.37 gallons, 1 Calorie = 4200 J). It may be helpful to refer back to the weekly handout for guidance on this problem. Your final answer should be in minutes (rounded to the nearest 10 minutes).
Example 5: A 16-cm x 20-cm gas engine has a normal speed of 450 rpm. Determine a.) the speed, in rev/s and rad/s; b.) the linear velocity of the crank pin, in cm/s and m/s. If the engine is allowed to stop at a uniform rate in 3 minutes and 20 seconds, determine c.) the deceleration of the crank, in rad/s²; d.) the distance, in cm, traveled by the crankpin in coming to rest; and e.) the distance, in cm, traveled by the piston in coming to rest. A m L
Q3/ including setting the machine, a worker manufactures 79 pieces of different tools in 7 hours and 15 minutes. If the standard time for the tool was Setting time = 40 min Production time per tool= 10 min Compute: 1-The standard time for manufacturing the 79 tools 2-Efficiency of operator
A CNC milling machine has a purchase price of £120,000 and it is considered from an accounting standpoint to be depreciated to zero value over a period of 5 years. If the machine is to be used for 2 shifts with each shift working for 37 hours/ week and 45 weeks/ year. What is the machine cost/ hr which must be charged in order to amortise/repay the costs over the 5 year period? To make the calculation simpler, you can assume that over the 5 year period you will be required to pay back 8% interest on the sum borrowed. Express your answer in § / hour rounded up to the nearest penny
In a manufacturing process, a drill press automatically drills a hole into a sheet metal part on a conveyor. In the drilling operation the drill bit starts at rest direcdly above the part, descends quickly, drills a hole, and quickly returns to the start position. The maximum vertical speed of the drill bit is 4 in./s, and while drilling the hole, it must move no more than 2.6 in./s to avoid warping the metal. Let s(t) be the drill biť's height (in inches) above the part as a function of time t in seconds. Sketch possible graphs of the drill bit's velocity [s'(t)] and acceleration [s"(t)].
This solution is incomplete. What about the answers to the following: d) Diameter of wheel in metres.e) Rotative speed in rpm if peripheral speed is 0.45√2gh.f) Specific speed of turbine in rpm.
4) A stone is dropped down a well and 5 s later the sound of the splash is heard. If the velocity of sound is 260 fps, what is the depth of the well in meters.
The impeller diameter of a centrifugal pump used in water pumping is 250 mm, the inlet radius of the water to the impeller blades is 25 mm, and the outlet radius is 10 mm. The inlet angle of water to the blade is 30°, and the outlet angle from the blade is 25°. The blade inlet width is 10 mm, and the outlet width is 5 mm. Given that the pump's rotation speed is 1800 rpm; a) Find the flow rate of the water passing through the pump?b) Find the required shaft power for the pump under ideal conditions?c) Find the pump's discharge head under ideal conditions?
The pulley below has a mechanical advantage of 3 and has a load of 300N assume an ideal pulley without friction losses, determine the following: a) what input force (input) do you apply to lift the load of 300 N? B) what is the tension in the 3 lines of the ropes of the pulley on the output side with the load as illustrated in the diagram? C) if the load is lifted to a height of 12 cm, how much rope is pulled on the input side d (in) in the diagram? D) how much work in joules (j) is required to lift the 300 N load 12 cm (0.12m)? E) how much power in watts (w) is required to lift the 300N load a distance of 0.12m in 20 seconds.
Gear drives are projected according to * a)contact stress and bending stress b)shear stress and tensile stress c)shear stress and contact stress d)crushing stress and bending stress e)bending stress and compression stress