Mechanical Engineering Project - Regenerative Reheat Rankine Cycle MAX 80 plus NDA

It is a regenerative reheat ranking cycle power plant

The boiler feed pump is 80% efficient, the condensate pump is 60% efficient, and each of the three turbine sections is 85% efficient. The feedwater system consists of a condensate pump, a closed feedwater heater (No. 1), an open feedwater heater (No. 2), a boiler feed pump, & another closed feedwater heater (No. 3). The closed heaters are both desuperheating plus condensing type; they condense the extraction steam to be a saturated liquid. The closed heaters are not ideal - No. 3 heater has a TTD (Terminal Temperature Difference) of -5.4 degrees F, No. 1 heater has a TTD of +12.04 F.

The No. 1 heater drains cascade backward to the condenser. The No. 3 heater drains cascade backward to the open heater (No. 2). The drain flows are regulated by control valves (assume these valves throttle the flows so the valve exit enthalpy is the same as the valve inlet enthalpy – see Cengel & Boles, Ch. 5) and assume that the valve reduces the fluid pressure to the pressure of the next lower pressure component (open heater or condenser).

Assume that the pressure drop associated with each closed heater and the associated piping is negligible, except for the throttling action of the heater level control valves in the drain piping of the two closed heaters. There are no pressure drops through the boiler or reheater.

Determine the feedwater temperature and enthalpy at the exit of each heater and the extraction steam flow rate (8x, 10x, 11x) to each of the three feedwater heaters.

Find the steam flow rate through each turbine section (m’7, m’9, m’11y). Also the steam flow rate m’10y (internal to the IPT).

Also find the power developed by each of the three turbines in Btu/hr. Turbine work in Btu/lbm is not a suitable answer.

Find the cycle efficiency.

Determine the energy which the condenser must reject to the circulating water (Btu/hr.)

I will need this done in 7 hours.

I would like all work done organized in a table in excel on google docs

化学工程 工程 Excel 矩阵及数学软件 机械工程

项目ID： #18236904

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