Engineering, 17.07.2019 21:20 ayoismeisjjjjuan
Amass of 15 kg of air in a piston-cylinder device is heated from 25 to 77°c by passing a current through a resistance heater inside the cylinder. the pressure inside the cylinder is held constant at 300 kpa during the process, and a heat loss of 60 kj occurs. determine the electrical energy supplied, in kwh.
Answers: 3
Another question on Engineering
Engineering, 04.07.2019 18:10
The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false
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 18:10
The higher the astm grain size number, the finer the gran is. a)-true b)-false
Answers: 2
You know the right answer?
Amass of 15 kg of air in a piston-cylinder device is heated from 25 to 77°c by passing a current thr...
Questions
Health, 05.05.2020 10:56
Mathematics, 05.05.2020 10:57
Mathematics, 05.05.2020 10:57
Biology, 05.05.2020 10:57
Mathematics, 05.05.2020 10:57
Mathematics, 05.05.2020 10:57
Biology, 05.05.2020 10:57
Mathematics, 05.05.2020 10:57
Mathematics, 05.05.2020 10:57
