Engineering, 15.09.2019 09:10 choiboiqg8443
You are to determine the most cost effective pump for your vacuum system. your vacuum system is composed of a vacuum chamber connected to two conductance in series of 100 l/s and 90 l/s. your choice of three pumps are as follow:
a. 30 l/s for $5000
b. 50 l/s for 8000
c. 100 l/s for 15000
find the most cost effective solution
Answers: 3
Engineering, 03.07.2019 14:10
Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.
Answers: 3
Engineering, 03.07.2019 14:10
The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite
Answers: 3
Engineering, 04.07.2019 18:10
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
Answers: 1
Engineering, 04.07.2019 18:10
Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k
Answers: 2
You are to determine the most cost effective pump for your vacuum system. your vacuum system is comp...
English, 31.12.2020 17:40
Mathematics, 31.12.2020 17:40
Physics, 31.12.2020 17:40
English, 31.12.2020 17:40
Social Studies, 31.12.2020 17:40
Engineering, 31.12.2020 17:40
Business, 31.12.2020 17:50
Mathematics, 31.12.2020 17:50
Mathematics, 31.12.2020 17:50