Engineering, 16.06.2020 19:57 aaronw3743
During the daytime, water is drawn from an upper reservoir and is run through a turbine on its way to a lower reservoir in order to produce power for a town. At night, the water is pumped back up to the upper reservoir in order to replenish the upper reservoir. Assume that the heat loss rate due to friction is 65 hp (going either up or down) and that the internal energy change is negligible.
Required:
a. Find the power extracted by the turbine if the downward volume flow rate is 15,000 gallons per minute.
b. What would the upward volume flow rate have to be in order for the system to "break even"?
Answers: 2
Another question on Engineering
Engineering, 04.07.2019 18:10
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
Answers: 1
Engineering, 04.07.2019 18:10
Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.
Answers: 2
Engineering, 04.07.2019 18:10
Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when
Answers: 1
Engineering, 06.07.2019 02:30
Plot schematically the tensile stress versus strain curves for a typical thermoplastic material at a temperature below its glass transition temperature (tg and at a temperature above its tg, respectively. do the same for a typical thermosetting material. list in a table any differences or similarities between the two materials at t> tg and t < tg, respectively, and relate them to the structures of the two types of polymers
Answers: 3
You know the right answer?
During the daytime, water is drawn from an upper reservoir and is run through a turbine on its way t...
Questions
Mathematics, 19.03.2021 03:50
Mathematics, 19.03.2021 03:50
Mathematics, 19.03.2021 03:50
Social Studies, 19.03.2021 03:50
