Engineering, 06.12.2021 02:20 snlawson9053

A 15 MW thermal power station has the following data: Cost of plant = $150 per kVA
Interest, taxes, insurance and depreciation rates = 25%
Cost of 11 kV-primary distribution system = $50000
Interest, taxes, insurance and depreciation rates = 10%
Annual fuel costs = $4×105
Annual operation costs = $20000
Annual plant (fixed) maintenance costs = $10000
Annual plant (variable) maintenance costs = $15000
Maximum demand = 10 MW
Annual load factor = 50%
Power factor at generating power station terminals = 0.85 lagging
Determine the electrical supply tariff per unit at the consumers'
terminals, where:
- Plant reserve power is 10% over maximum generated power
demand.
- Efficiency of primary distribution system is 97%.
Find the percentage saving in electrical supply tariff served for the
consumers, if the load factor is raised to 75%.

Answers: 2

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Answers: 3

Answer

Engineering, 04.07.2019 18:10

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Answers: 2

Answer

Engineering, 04.07.2019 18:20

Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis

Answers: 1

Answer

Engineering, 04.07.2019 19:20

To design a steam turbine to produce 12,000 hp power. a engineer comsiders using a steady state stean low st 1160fr and engineer considers using a steady state steam flow at 1160°r and 450 psia to drive this steam turbine. the exhaust of the steam is cooled by the lake (vacuum). heat losing to the surroundings is measured at a rate of 555.55 btu/s. (a) sketch the system with the given conditions. (b) neglecting kinetic and potential energy changes from inlet to exit, determine the volumetric flow rate of the steam at the inlet, (ft'/hr). must clearly show unit conversions at crtical terms.

Answers: 1

Answer

You know the right answer?

A 15 MW thermal power station has the following data: Cost of plant = $150 per kVA
Interest,...

Questions