Engineering, 02.02.2021 01:00 dvandebrake2002
A 90-hp (shaft output) electric car is powered by an electric motor mounted in the engine compartment. If the motor has an average efficiency of 91 percent, determine the rate of heat supply by the motor to the engine compartment at full load.
Answers: 2
), no unit, is the ratio of translational mechanical power (
), measured in horse power, to electric power (
), measured in horse-power. The rate of heat supply (
), measured in horse-power, by the motor to the engine compartment at full load is difference between electric energy and translational mechanical energy. That is:
(1)
(2)
(3)
and 
, then rate of heat supply is:
Another question on Engineering
Engineering, 03.07.2019 14:10
Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned
Answers: 2
Engineering, 04.07.2019 18:10
For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater
Answers: 3
Engineering, 04.07.2019 18:10
The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
Answers: 2
Engineering, 04.07.2019 18:20
For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.
Answers: 1
You know the right answer?
A 90-hp (shaft output) electric car is powered by an electric motor mounted in the engine compartmen...
Questions
Mathematics, 01.09.2020 23:01
Mathematics, 01.09.2020 23:01
Computers and Technology, 01.09.2020 23:01
Mathematics, 01.09.2020 23:01
Mathematics, 01.09.2020 23:01
English, 01.09.2020 23:01
Arts, 01.09.2020 23:01
Chemistry, 01.09.2020 23:01
