RANKINE V3.0: A steam power system

software package

USERS MANUALUSERS MANUAL

by

W.A. Thelen and C.W. Somerton

Department of Mechanical EngineeringMichigan State UniversityEast Lansing, MI 48824

© Copyright 1997

Introduction

Rankine V3.0 is a PC-DOS program which performs a thermal analysis of any user specified steam power system. The user specified system may include up to 100 thermal equipment components commonly found in commercial power plants such as boilers, turbines, condensers, open feed water heaters, pumps, pipes, and heat loads. In addition to the system configuration, the user also provides some system operating conditions and thermal equipment information required for the analysis. The output generated by Rankine V3.0 summarizes the results of a first and second law analysis of the system operating under the given conditions. It is the intent of RANKINE V3.0 to provide a quick and detailed analysis which will permit innovative steam power system designs to be investigated for potential improved system efficiency. The first step required to use Rankine V3.0 is to sketch the complete system which will be modeled. On this sketch, each thermal equipment device should be assigned a device number and each inlet/exit should be assigned a node number. Due to code limitations, the device numbers and node numbers should begin at 1 and not exceed 100. The next step is to convert the information on this sketch into a format which may be used by the program. The information Rankine V3.0 needs to perform the analysis is contained within a file call an 'input file'. The creation of the input deck may be done with either Notepad or WordPad when working on a PC running Windows 95 or Windows NT. A sample of a completed input deck is included within this users manual. Rankine V3.0 has been written such that the input deck communicates all required information using key words and phrases such as 'SIMPLE TURBINE', 'SIMPLE BOILER' and 'SIMPLE PUMP'. Rankine V3.0 ignores all words & phrases which are not in its keyword library. As a result, the input deck specifies all information using a combination of alpha-numeric characters and phrases. For example, to specify all information about a turbine with two extractions the following logic sequence should be include within the input deck:

DEVICE #1 IS A SIMPLE TURBINETHE INLET NODE NUMBER IS 1EXTRACTION #1 NODE NUMBER IS 2EXTRACTION #2 NODE NUMBER IS 3STAGE #1 EFFICIENCY IS 75 PERCENTSTAGE #2 EFFICIENCY IS 50 PERCENTEXTRACTION #1 MASS FLOW RATE IS 25.0 KG/SECEXTRACTION #2 PRESSURE IS 10.0 MPAEXTRACTION #3 PRESSURE IS 100 PSIG

END DEVICE

where the bold faced words are the key words. A list of all key word and phrases can be found in Table 1.

Using an appropriate editor and the key phrases provided in Tables 1, 2 and 3, an input file for any steam system may be created. It is recommended that a hard copy of an existing input deck be referred to as questions arise associated with input file construction. For the more experienced Rankine users, it may be easier to modify an existing input deck to represent a new system than to construct a new one from scratch.

After the input file has been created, Rankine V3.0 may be executed by double clicking on the RANK30 icon. The program will prompt the user for the input file name, the output file name and will analyze the system under the given operating conditions.

Interpretation of Rankine V3.0 Output

The execution of Rankine V3.0 generates three types of data:

1) Node data2) Device data3) System data.

For any given steam power system, information relevant to each type of data is contained within the output file specified when Rankine was executed. The definitions associated with each type of data are shown in Tables 4 and 5.

Table 1. Summary of Key Words and Phrases General Key Words

KEY WORD INTERPRETATIONECHO OFF Indicates that all input deck information

will not be written to an external data file called 'ECHO.OUT'. It is recommended that this feature not be used.

INPUT CHECK OFF Indicates that all input deck checking be bypassed. It is recommended that this feature not be used.

TITLE LINE Indicates the beginning of title information. If a title is included within the input deck, the title will be written to the output file. The title may be up to 10 lines long.

END TITLE LINE Indicates the end of the title information.NUMBER OF NODES Indicates the number of nodes in the

system. This key phrase is followed by a number corresponding to the number of nodes. (up to 100)

END DEVICE Indicates the end of information related to a specific device. For each device type (boiler, turbine, etc.) one END DEVICE should be present.

COMMENT Indicates that the line is a comment line and will be skipped when scanned for key words.

HIGH TEMPERATURE RESERVOIR Indicates the temperature of the hot reservoir with which the system is interacting. Acceptable units are 'DEG C', 'DEG F', DEG R', 'DEG K'.

LOW TEMPERATURE RESERVOIR Indicates the temperature of the cold reservoir with which the system is interacting. Acceptable units are 'DEG C', 'DEG F', DEG R', 'DEG K'.

DEAD STATE Indicates a thermal property of the dead state will be indicated (such as temperature or pressure). A second key word is expected.

GENERATOR MECHANICAL LOSSES Indicates that Generator Mechanical Losses are known and should be considered. Acceptable units are 'KW', 'MW', 'BTU/HR', 'HP'.

GENERATOR ELECTRICAL LOSSES Indicates that Generator Electrical Losses are known and should be considered. Acceptable units are 'KW', 'MW', 'BTU/HR', 'HP'.

Table 2. Device Specific Key Phrases

DEVICE NAME 1ST KEY WORD 2ND KEY WORD? UNITS? SIMPLE TURBINE INLET YES PER 2ND KEY WORD

EXTRACTION #_ YES PER 2ND KEY WORDSTAGE GROUP #_

EFFICIENCYNO %, PERCENT

SIMPLE PUMP SUCTION YES PER 2ND KEY WORDDISCHARGE YES PER 2ND KEY WORDEFFICIENCY NO %, PERCENT

SIMPLE PIPE INLET YES PER 2ND KEY WORDEXIT YES PER 2ND KEY WORD

PIPE PRESSURE LOSS

NO PRESSURE

PIPE PERCENTAGE PRESSURE LOSS

NO %, PERCENT

PIPE ENTHALPY LOSS

NO ENTHALPY

PIPE PERCENTAGE ENTHALPY LOSS

NO %, PERCENT

SIMPLE JUNCTION INLET #1 YES PER 2ND KEY WORDINLET #2 YES PER 2ND KEY WORDEXIT #1 YES PER 2ND KEY WORDEXIT #2 YES PER 2ND KEY WORD

SIMPLE CONDENSER EXIT YES PER 2ND KEY WORDINLET #_ YES PER 2ND KEY WORD

SIMPLE HEAT LOAD INLET YES PER 2ND KEY WORDEXIT YES PER 2ND KEY WORD

SIMPLE OFW HEATER

FEED WATER EXIT YES PER 2ND KEY WORD

FEED WATER INLET YES PER 2ND KEY WORDEXTRACTION

INLETYES PER 2ND KEY WORD

Table 2 (Cont.). Device Specific Key PhrasesDEVICE NAME 1ST KEY WORD 2ND KEY

WORD?UNITS?

SIMPLE BOILER BOILER INLET YES PER 2ND KEY WORDBOILER EXIT YES PER 2ND KEY WORD

REHEAT LEG #_ INLET

YES PER 2ND KEY WORD

REHEAT LEG #_ EXIT

YES PER 2ND KEY WORD

BOILER PRESSURE LOSS

NO PRESSURE

BOILER PERCENTAGE

PRESSURE LOSS

NO %, PERCENT

REHEAT LEG #_ PRESSURE LOSS

NO PRESSURE

REHEAT LEG #_ PERCENTAGE

PRESSURE LOSS

NO %, PERCENT

SIMPLE STEAMTRAP CFW

FEED WATER INLET YES PER 2ND KEY WORD

FEED WATER EXIT YES PER 2ND KEY WORDEXTRACTION

INLETYES PER 2ND KEY WORD

DRAIN INLET YES PER 2ND KEY WORDDRAIN EXIT #1 YES PER 2ND KEY WORDDRAIN EXIT #2 YES PER 2ND KEY WORDFEED WATER

PRESSURE LOSSNO PRESSURE

FEED WATER PERCENTAGE

PRESSURE LOSS

NO %, PERCENT

EXTRACTION PRESSURE LOSS

NO PRESSURE

EXTRACTION PERCENTAGE

PRESSURE LOSS

NO %, PERCENT

TERMINAL TEMPERATURE

DIFFERENCE

NO TEMPERATURE

APPROACH TEMPERATURE

DIFFERENCE

NO TEMPERATURE

NOTE: 1) A turbine may have a maximum of 10 extractions2) Turbine stage group efficiency must be between 0% and 100%3) Pump efficiency must be between 0% and 100%4) Pipe pressure and enthalpy losses must be positive5) A simple junction may only have one INLET #2 or one EXIT #2

6) A condenser may have a maximum of 27 inlets. 7) A boiler may have a maximum of 5 reheat legs.

Table 3. 2nd Key Word Table

2ND KEY WORD NUMBER? UNITSNODE YES ----------------------------------

TEMPERATURE YES DEG C, DEG K, DEG F, DEG R PRESSURE YES MPA, KPA, PSIA, PSIG, INCHES

HG GAUGE, INCHES HG ABSOLUTE,INCHES H20 GAUGE,INCHES H20 ABSOLUTE

ENTHALPY YES KJ/KG, J/KG, BTU/LBM ENTROPY YES KJ/KG/K, J/KG/K, BTU/LBM/R

MASS FLOW YES KG/SEC, KG/HR, LBM/SEC, LBM/HR

SATURATED LIQUID NO ----------------------------------

SATURATED VAPOR NO ----------------------------------SUPERHEATER YES DEG C, DEG K, DEG F, DEG R

SUBCOOLED YES DEG C, DEG K, DEG F, DEG RFLUID PHASE NO SUBCOOLED LIQUID,

SATURATED LIQUID,2 PHASE MIXTURE,SATURATED VAPOR,SUPERHEATED

FLUID QUALITY YES %, PERCENT

Table 4. Node Data Definitions

ABBREVIATION DEFINITIONT Temperature of steam at node (C)P Pressure of steam at node (MPA)L Fluid phase index:

1- subcooled liquid2- two phase mixture3- superheated vapor4- saturated liquid5- saturated vapor

Q Quality of steam at node (-)S Entropy of steam at node (KJ/KG/K)H Enthalpy of steam at node (KJ/KG)V Specific volume of steam at node

(M^3/KG)M Mass flow rate of steam at node (KG/S)A Availability of steam at node (KJ/KG)

Table 5. Device Data Definitions

ABBREVIATION DEFINITIONREV WRK The reversible work associate with the

device before the node (KW)ACT WRK The actual work associated with the device

before the node (KW)IRREV The irreversibility associated with the

device before the node (KW)HEAT X-FER The heat transferred by the device before

the node (KW)MASS ERR The mass balance error associated with the

device before the node. (KG/SEC)ENG ERR The energy balance error associated with

the device before the node (KW)

Example

As an example, consider the problem of optimizing the reheat pressure of a two turbine system without feedwater heaters. A configuration sketch that will be utilized for this study is shown in Fig. 3. We will assume that

(i) boiler operates at 4.0 MPa and 500°C(ii)the reheat occurs at 500°C(iii) there are no steam extractions(iv) the condenser pressure is 0.1 MPa(v) all devices are ideal

We will begin by considering three reheat pressures: 2 MPa, 1 MPa, and 0.5 MPa. Then our input file will take the form

TITLE LINEReheat Example Case #1

END TITLE LINE

NUMBER OF NODES: 12

HIGH TEMPERATURE RESERVOIR IS 500 DEG CLOW TEMPERATURE RESERVOIR IS 99.6 DEG CDEAD STATE TEMPERATURE IS 25.0 DEG CDEAD STATE PRESSURE IS 101 KPA

GENERATOR MECHANICAL LOSS IS 0.0 MWGENERATOR ELECTRICAL LOSS IS 0.0 MW

DEVICE #1: SIMPLE BOILERBOILER INLET NODE NUMBER IS 4BOILER EXIT NODE NUMBER IS 5REHEAT LEG #1 INLET NODE IS 8REHEAT LEG #1 EXIT NODE IS 9BOILER EXIT TEMPERATURE IS 500 DEG CBOILER EXIT PRESSURE IS 4.0 MPAREHEAT LEG #1 EXIT TEMPERATURE IS 500 DEG CBOILER EXIT MASS FLOW RATE IS 1.0 KG/SECREHEAT LEG #1 PRESSURE LOSS IS 0.0 MPABOILER PRESSURE LOSS IS 0.0 MPA

END DEVICE

DEVICE #2: SIMPLE PIPEINLET NODE NUMBER IS 5EXIT NODE NUMBER IS 6PIPE PRESSURE LOSS 0.0 MPAPIPE ENTHALPY LOSS 0.0 KJ/KG

END DEVICE

DEVICE #3: SIMPLE TURBINEINLET NODE NUMBER IS 6EXTRACTION #1 NODE NUMBER IS 7EXTRACTION #1 PRESSURE IS 2.0 MPASTAGE GROUP #1 EFFICIENCY IS 100%

END DEVICE

DEVICE #4: SIMPLE PIPEINLET NODE NUMBER IS 7EXIT NODE NUMBER IS 8PIPE PRESSURE LOSS 0.0 MPAPIPE ENTHALPY LOSS 0.0 KJ/KG

END DEVICE

DEVICE #5: SIMPLE PIPEINLET NODE NUMBER IS 9EXIT NODE NUMBER IS 10PIPE PRESSURE LOSS 0.0 MPAPIPE ENTHALPY LOSS 0.0 KJ/KG

END DEVICE

DEVICE #6: SIMPLE TURBINEINLET NODE NUMBER IS 10EXTRACTION #1 NODE NUMBER IS 11EXTRACTION #1 PRESSURE IS 0.1 MPASTAGE GROUP #1 EFFICIENCY IS 100%

END DEVICE

DEVICE #7: SIMPLE PIPEINLET NODE NUMBER IS 11EXIT NODE NUMBER IS 12PIPE PRESSURE LOSS 0.0 MPAPIPE ENTHALPY LOSS 0.0 KJ/KG

END DEVICE

DEVICE #10: SIMPLE CONDENSEREXIT NODE NUMBER IS 1INLET #1 NODE NUMBER IS 12

END DEVICE

DEVICE #11: SIMPLE PIPEINLET NODE NUMBER IS 1EXIT NODE NUMBER IS 2PIPE PRESSURE LOSS 0.0 MPAPIPE ENTHALPY LOSS 0.0 KJ/KG

END DEVICE

DEVICE #12: SIMPLE PUMPSUCTION NODE NUMBER IS 2DISCHARGE NODE NUMBER IS 3PUMP EFFICIENCY IS 100%

END DEVICE

DEVICE #13: SIMPLE PIPEINLET NODE NUMBER IS 3EXIT NODE NUMBER IS 4PIPE PRESSURE LOSS 0.0 MPAPIPE ENTHALPY LOSS 0.0 KJ/KG

END DEVICE

The output from these runs can be seen in Fig. 4. We can see that the case with a reheat pressure of 1.0 has the higher efficiency and hence would be our chosen operating condition.

Figure 3. Schematic for Example

1

Boiler

Turbine

Turbine

CondenserPump

9

1

3

2

4

5

6

Pipe

7 8

10

11

12

Pipe

Pipe

Pipe

Pipe

Pipe

Figure 4. Results from RANKINE V3.0 Example

RANKINE: A steam power system software package Version 3.0

Copyright 1993 C.W. Somerton, W. Thelen

********************************** TITLE *********************************** Reheat Example Case #1 ******************************** NODE DATA ********************************* NODE T(C) P(MPa) L Q S(KJ/KG/K) H(KJ/KG) V(M^3/KG) M(KG/S) A(KJ/KG) ---------------------------------------------------------------------------- 1 99.63 .1000 4 ***** 1.3018 417.31 .00104 1.0000 33.64 2 99.63 .1000 4 ***** 1.3018 417.31 .00104 1.0000 33.64 3 100.03 4.0000 1 ***** 1.3018 421.90 .00104 1.0000 38.24 4 100.03 4.0000 1 ***** 1.3018 421.90 .00104 1.0000 38.24 5 500.00 4.0000 3 ***** 7.0881 3443.72 .08637 1.0000 1335.75 6 500.00 4.0000 3 ***** 7.0881 3443.72 .08637 1.0000 1335.75 7 388.31 2.0000 3 ***** 7.0881 3221.59 .14829 1.0000 1113.62 8 388.31 2.0000 3 ***** 7.0881 3221.59 .14829 1.0000 1113.62 9 500.00 2.0000 3 ***** 7.4287 3465.40 .17561 1.0000 1255.93 10 500.00 2.0000 3 ***** 7.4287 3465.40 .17561 1.0000 1255.93 11 112.50 .1000 3 ***** 7.4287 2701.70 1.75681 1.0000 492.24 12 112.50 .1000 3 ***** 7.4287 2701.70 1.75681 1.0000 492.24 ********************* DEVICE DATA (DEVICE BEFORE NODE) ********************* NODE REV. WRK ACT. WRK IRREV HEAT X-FER MASS ERROR ENERGY ERROR (KW) (KW) (KW) (KW) (KG/S) (KW) ---------------------------------------------------------------------------- 1 1.53 .00 1.53 -2284.40 .000 .000 2 .00 .00 .00 .00 .000 .000 3 -4.60 -4.60 .00 .00 .000 .000 4 .00 .00 .00 .00 .000 .000 5 1450.97 .00 1450.97 3021.82 .000 .000 6 .00 .00 .00 .00 .000 .000 7 222.13 222.13 .00 .00 .000 .000 8 .00 .00 .00 .00 .000 .000 9 19.46 .00 19.46 243.81 .000 .000 10 .00 .00 .00 .00 .000 .000 11 763.69 763.69 .00 .00 .000 .000 12 .00 .00 .00 .00 .000 .000

******************************* SYSTEM DATA ******************************** UNACCOUNTED MASS FLOW EXITING SYSTEM: .0000 KG/SEC UNACCOUNTED MASS FLOW ENTERING SYSTEM: .0000 KG/SEC UNACCOUNTED ENERGY EXITING SYSTEM: .0000 KW BOILER HEAT (DEVICE # 1): 3265.6290 KW TOTAL BOILER HEAT: 3265.6290 KW TOTAL HEAT LOAD HEAT: .0000 KW CONDENSER HEAT (DEVICE # 8): -2284.3990 KW TOTAL PIPE ENERGY LOSSES: .0000 KW TURBINE WORK (DEVICE # 3): 222.1340 KW TURBINE WORK (DEVICE # 6): 763.6956 KW NET WORK TO GENERATORS: 985.8296 KW PUMP WORK (DEVICE # 10): -4.5993 KW TOTAL PUMP WORK: -4.5993 KW GENERATOR MECHANICAL LOSSES: .0000 KW GENERATOR ELECTRICAL LOSSES: .0000 KW NET ELECTRICAL POWER: 981.2302 KW SYSTEM HEAT RATE: 11355.4700 BTU/KW*HR CARNOT CYCLE EFFICIENCY: 51.7982 PERCENT 1ST LAW THERMAL EFFICIENCY: 30.0472 PERCENT 2ND LAW THERMAL EFFICIENCY: 49.0147 PERCENT 2ND LAW EFFECTIVENESS: 58.0082 PERCENT

RANKINE: A steam power system software package Version 3.0

Copyright 1993 C.W. Somerton, W. Thelen

********************************** TITLE *********************************** Reheat Example Case #2 ******************************** NODE DATA ********************************* NODE T(C) P(MPa) L Q S(KJ/KG/K) H(KJ/KG) V(M^3/KG) M(KG/S) A(KJ/KG) ---------------------------------------------------------------------------- 1 99.63 .1000 4 ***** 1.3018 417.31 .00104 1.0000 33.64 2 99.63 .1000 4 ***** 1.3018 417.31 .00104 1.0000 33.64 3 100.03 4.0000 1 ***** 1.3018 421.90 .00104 1.0000 38.24 4 100.03 4.0000 1 ***** 1.3018 421.90 .00104 1.0000 38.24 5 500.00 4.0000 3 ***** 7.0881 3443.72 .08637 1.0000 1335.75 6 500.00 4.0000 3 ***** 7.0881 3443.72 .08637 1.0000 1335.75 7 290.73 1.0000 3 ***** 7.0881 3031.32 .25346 1.0000 923.34 8 290.73 1.0000 3 ***** 7.0881 3031.32 .25346 1.0000 923.34 9 500.00 1.0000 3 ***** 7.7586 3475.99 .35405 1.0000 1168.21 10 500.00 1.0000 3 ***** 7.7586 3475.99 .35405 1.0000 1168.21 11 182.05 .1000 3 ***** 7.7586 2840.04 2.08838 1.0000 532.26 12 182.05 .1000 3 ***** 7.7586 2840.04 2.08838 1.0000 532.26

********************* DEVICE DATA (DEVICE BEFORE NODE) ********************* NODE REV. WRK ACT. WRK IRREV HEAT X-FER MASS ERROR ENERGY ERROR (KW) (KW) (KW) (KW) (KG/S) (KW) ---------------------------------------------------------------------------- 1 16.94 .00 16.94 -2422.73 .000 .000 2 .00 .00 .00 .00 .000 .000 3 -4.60 -4.60 .00 .00 .000 .000 4 .00 .00 .00 .00 .000 .000 5 1450.97 .00 1450.97 3021.82 .000 .000 6 .00 .00 .00 .00 .000 .000 7 412.40 412.40 .00 .00 .000 .000 8 .00 .00 .00 .00 .000 .000 9 73.62 .00 73.62 444.68 .000 .000 10 .00 .00 .00 .00 .000 .000 11 635.95 635.95 .00 .00 .000 .000 12 .00 .00 .00 .00 .000 .000 ******************************* SYSTEM DATA ******************************** UNACCOUNTED MASS FLOW EXITING SYSTEM: .0000 KG/SEC UNACCOUNTED MASS FLOW ENTERING SYSTEM: .0000 KG/SEC UNACCOUNTED ENERGY EXITING SYSTEM: .0000 KW BOILER HEAT (DEVICE # 1): 3466.4920 KW TOTAL BOILER HEAT: 3466.4920 KW TOTAL HEAT LOAD HEAT: .0000 KW CONDENSER HEAT (DEVICE # 8): -2422.7350 KW TOTAL PIPE ENERGY LOSSES: .0000 KW TURBINE WORK (DEVICE # 3): 412.4050 KW TURBINE WORK (DEVICE # 6): 635.9519 KW NET WORK TO GENERATORS: 1048.3570 KW PUMP WORK (DEVICE # 10): -4.5993 KW TOTAL PUMP WORK: -4.5993 KW GENERATOR MECHANICAL LOSSES: .0000 KW GENERATOR ELECTRICAL LOSSES: .0000 KW NET ELECTRICAL POWER: 1043.7580 KW SYSTEM HEAT RATE: 11331.8200 BTU/KW*HR CARNOT CYCLE EFFICIENCY: 51.7982 PERCENT 1ST LAW THERMAL EFFICIENCY: 30.1099 PERCENT 2ND LAW THERMAL EFFICIENCY: 49.1098 PERCENT 2ND LAW EFFECTIVENESS: 58.1293 PERCENT

RANKINE: A steam power system software package Version 3.0

Copyright 1993 C.W. Somerton, W. Thelen

********************************** TITLE *********************************** Reheat Example Case #3 ******************************** NODE DATA ********************************* NODE T(C) P(MPa) L Q S(KJ/KG/K) H(KJ/KG) V(M^3/KG) M(KG/S) A(KJ/KG) ---------------------------------------------------------------------------- 1 99.63 .1000 4 ***** 1.3018 417.31 .00104 1.0000 33.64 2 99.63 .1000 4 ***** 1.3018 417.31 .00104 1.0000 33.64 3 100.03 4.0000 1 ***** 1.3018 421.90 .00104 1.0000 38.24 4 100.03 4.0000 1 ***** 1.3018 421.90 .00104 1.0000 38.24 5 500.00 4.0000 3 ***** 7.0881 3443.72 .08637 1.0000 1335.75 6 500.00 4.0000 3 ***** 7.0881 3443.72 .08637 1.0000 1335.75 7 206.29 .5000 3 ***** 7.0881 2869.04 .43147 1.0000 761.07 8 206.29 .5000 3 ***** 7.0881 2869.04 .43147 1.0000 761.07 9 500.00 .5000 3 ***** 8.0834 3481.23 .71090 1.0000 1076.65 10 500.00 .5000 3 ***** 8.0834 3481.23 .71090 1.0000 1076.65 11 263.51 .1000 3 ***** 8.0834 3000.79 2.46937 1.0000 596.21 12 263.51 .1000 3 ***** 8.0834 3000.79 2.46937 1.0000 596.21 ********************* DEVICE DATA (DEVICE BEFORE NODE) ********************* NODE REV. WRK ACT. WRK IRREV HEAT X-FER MASS ERROR ENERGY ERROR (KW) (KW) (KW) (KW) (KG/S) (KW) ---------------------------------------------------------------------------- 1 56.66 .00 56.66 -2583.48 .000 .000 2 .00 .00 .00 .00 .000 .000 3 -4.60 -4.60 .00 .00 .000 .000 4 .00 .00 .00 .00 .000 .000 5 1450.97 .00 1450.97 3021.82 .000 .000 6 .00 .00 .00 .00 .000 .000 7 574.67 574.67 .00 .00 .000 .000 8 .00 .00 .00 .00 .000 .000 9 157.20 .00 157.20 612.18 .000 .000 10 .00 .00 .00 .00 .000 .000 11 480.44 480.44 .00 .00 .000 .000 12 .00 .00 .00 .00 .000 .000

******************************* SYSTEM DATA ******************************** UNACCOUNTED MASS FLOW EXITING SYSTEM: .0000 KG/SEC UNACCOUNTED MASS FLOW ENTERING SYSTEM: .0000 KG/SEC UNACCOUNTED ENERGY EXITING SYSTEM: .0000 KW BOILER HEAT (DEVICE # 1): 3634.0010 KW TOTAL BOILER HEAT: 3634.0010 KW TOTAL HEAT LOAD HEAT: .0000 KW CONDENSER HEAT (DEVICE # 8): -2583.4810 KW TOTAL PIPE ENERGY LOSSES: .0000 KW TURBINE WORK (DEVICE # 3): 574.6792 KW TURBINE WORK (DEVICE # 6): 480.4402 KW NET WORK TO GENERATORS: 1055.1190 KW PUMP WORK (DEVICE # 10): -4.5993 KW TOTAL PUMP WORK: -4.5993 KW GENERATOR MECHANICAL LOSSES: .0000 KW GENERATOR ELECTRICAL LOSSES: .0000 KW NET ELECTRICAL POWER: 1050.5200 KW SYSTEM HEAT RATE: 11802.9300 BTU/KW*HR CARNOT CYCLE EFFICIENCY: 51.7982 PERCENT 1ST LAW THERMAL EFFICIENCY: 28.9081 PERCENT 2ND LAW THERMAL EFFICIENCY: 47.1529 PERCENT 2ND LAW EFFECTIVENESS: 55.8091 PERCENT