PRoJECT #$1$: Rankine Power CYCle DESIGN

This project is a collaborative team assignment. You may consult the course instructor $($or any other

instructor$),$ classmates, and peers. Submit your project results in a letter report as a PDF file. To

maximize the credit that you receive for your submission, I strongly encourage you to utilize the

IDENTIFY, FORMULATE, and SOLVE problem$-$solving methodology that you have been taught.

Problem Statement

A Rankine cycle, driven by steam as the working fluid, is to be designed to deliver a net power

output of $200$ MW $.$ The cycle features heat rejection to a condenser which operates at your given

design pressure. Heat is generated by the combustion of your given design fuel. The generated heat

is received into the cycle at a boiler which operates at your given design pressure. The Rankine

power cycle comprises steps $($state points$)1-4$ as described below.

Steam, with a maximum specific volume of $0\mathrm{.}75f\frac{t^3}{l}bm,$ enters a $75\%$ efficient isentropic

turbine.

Saturated turbine exhaust enters an isobaric condenser at the stated rejection pressure.

Incompressible liquid water at saturated conditions leaves the condenser and is pumped

$($at $62\%$ isentropic efficiency$)$ to high pressure.

Heat is added to a boiler to generate superheated steam isobarically.

Given the above information, please determine the circulation rate of steam in the power plant

$(l\frac{b_m}{h}r),$ the required cooling water flow rate $($gpm$)$ with justifiable choices for intake and discharge

temperatures, and the supply rate for your design fuel $($ scfd $).$

In designing your power$-$generating cycle, you should be sure to perform the following tasks along

the way and present your findings in your letter report along with appropriate discussion.

POWER CYCLE DESIGN$-$SPECIFIC TASKS

a$)$ Calculate specific pump work $($using hp as the energy$/$power unit$)$

b$)$ Calculate the specific heat added $($using BTU as the energy unit$).$

c$)$ Calculate the specific heat rejected $($using BTU as the energy unit$)$

d$)$ Calculate the thermal efficiency for your cycle, and explore ways to improve thermal

efficiency within the parameters and constraints given in the problem.

e$)$ Determine specific enthalpies $($using BTU as the energy unit$)$ at all four process state

points.

In the course of your design you will need to specify or$/$and determine the temperatures and

pressures at the different states and show the cycle with the vapor dome on a temperature entropy

$($T$-$s$)$ diagram or pressure enthalpy $(p-H)$ diagram, or both.