Classes
struct	SteamLeakSurveyResults

Public Types
enum class	UtilityType { steam , electric , natural_gas }

Public Member Functions
	SteamLeakSurvey (const double operatingTime, const double steamTemp, const double steamPressure, const double costOfElectricity, const double leakPressure, const double leakTemp, const double feedwaterTemp, const double steamCost)

	SteamLeakSurvey (const double operatingTime, const double steamTemp, const double steamPressure, const double costOfElectricity, const double leakPressure, const double leakTemp, const double feedwaterTemp, const double boilerEfficiency, const double systemEfficiency)

	SteamLeakSurvey (const double operatingTime, const double steamTemp, const double steamPressure, const double costOfElectricity, const double leakPressure, const double leakTemp, const double feedwaterTemp, const double boilerEfficiency, const double systemEfficiency, const double fuelCost, const double fuelEnergyFactor=1)

	SteamLeakSurvey (const double operatingTime, const double steamTemp, const double steamPressure, const double costOfElectricity, const double leakPressure, const double leakTemp, const double feedwaterTemp, const double boilerEfficiency, const double systemEfficiency, const UtilityType utilityType, const double fuelCost=0, const double fuelEnergyFactor=1, const double steamCost=0)

SteamLeakSurveyResults	estimateMethodPRVCalc (const double leakRate) const

SteamLeakSurveyResults	estimateMethodTurbineCalc (const double turbineEfficiency, const double leakRate) const

SteamLeakSurveyResults	orificeMethodCalc (const double turbineEfficiency, const double holeSize, const double dischargeCoef, const double atmPressure) const

SteamLeakSurveyResults	plumeMethodCalc (const double turbineEfficiency, const double plumeLength, const double ambTemp) const

double	costOfSteam (const double turbineEfficiency) const

double	costOfSteam () const

Private Member Functions
SteamLeakSurveyResults	calculate (const double leakRate, const double turbineEfficiency=0) const

Private Attributes
double	operatingTime = 0

double	steamPressure = 0

double	leakPressure = 0

double	costOfElectricity = 0

double	steamCost = 0

double	steamSpecificEnthalpy = 1256.12

double	isentropicEnthalpy = 1220.35

double	feedwaterEnthalpy = 38.16

double	leakEnthalpy = 1208.07

double	leakDensity = 0

double	specificHeatRatio = 1.3

Detailed Description

Definition at line 25 of file steam_leak_survey.h.

Member Enumeration Documentation

◆ UtilityType

enum class SteamLeakSurvey::UtilityType

strong

Definition at line 27 of file steam_leak_survey.h.

Constructor & Destructor Documentation

◆ SteamLeakSurvey() [1/4]

SteamLeakSurvey::SteamLeakSurvey	(	const double	operatingTime,
		const double	steamTemp,
		const double	steamPressure,
		const double	costOfElectricity,
		const double	leakPressure,
		const double	leakTemp,
		const double	feedwaterTemp,
		const double	steamCost
	)

inline

Constructor for SteamLeakSurvey, when utility type is steam

Parameters

operatingTime	double, operating time of the system hours per year
steamTemp	double, steam temperature F (must be greater than 212F)
steamPressure	double, steam pressure in psig
costOfElectricity	double, $/kWh, default 0
leakPressure	double, leak pressure in psig
leakTemp	double, leak temperature F
feedwaterTemp	double, feedwater temperature in F (must be below boiling point of water, max 212F)
steamCost	double, $/lb

Definition at line 47 of file steam_leak_survey.h.

◆ SteamLeakSurvey() [2/4]

SteamLeakSurvey::SteamLeakSurvey	(	const double	operatingTime,
		const double	steamTemp,
		const double	steamPressure,
		const double	costOfElectricity,
		const double	leakPressure,
		const double	leakTemp,
		const double	feedwaterTemp,
		const double	boilerEfficiency,
		const double	systemEfficiency
	)

inline

Constructor for SteamLeakSurvey, when utility type is electric

Parameters

operatingTime	double, operating time of the system hours per year
steamTemp	double, steam temperature F (must be greater than 212F)
steamPressure	double, steam pressure in psig
costOfElectricity	double, $/kWh, default 0
leakPressure	double, leak pressure in psig
leakTemp	double, leak temperature F
feedwaterTemp	double, feedwater temperature in F (must be below boiling point of water, max 212F)
boilerEfficiency	double, boiler efficiency percentage (0 - 100 %)
systemEfficiency	double, system efficiency percentage (0 - 100 %)

Definition at line 66 of file steam_leak_survey.h.

◆ SteamLeakSurvey() [3/4]

SteamLeakSurvey::SteamLeakSurvey	(	const double	operatingTime,
		const double	steamTemp,
		const double	steamPressure,
		const double	costOfElectricity,
		const double	leakPressure,
		const double	leakTemp,
		const double	feedwaterTemp,
		const double	boilerEfficiency,
		const double	systemEfficiency,
		const double	fuelCost,
		const double	fuelEnergyFactor = `1`
	)

inline

Constructor for SteamLeakSurvey, when utility type is natural gas

Parameters

operatingTime	double, operating time of the system hours per year
steamTemp	double, steam temperature F (must be greater than 212F)
steamPressure	double, steam pressure in psig
costOfElectricity	double, $/kWh, default 0
leakPressure	double, leak pressure in psig
leakTemp	double, leak temperature F
feedwaterTemp	double, feedwater temperature in F (must be below boiling point of water, max 212F)
boilerEfficiency	double, boiler efficiency percentage (1 - 100 %)
systemEfficiency	double, system efficiency percentage (1 - 100 %)
fuelCost	double, per MCF (unit cost of fuel for the boiler system), when utility type Natural Gas
fuelEnergyFactor	double, MMBtu/MCF (energy content for a given volume of fuel, when unit is in $/volume)

Definition at line 87 of file steam_leak_survey.h.

◆ SteamLeakSurvey() [4/4]

SteamLeakSurvey::SteamLeakSurvey	(	const double	operatingTime,
		const double	steamTemp,
		const double	steamPressure,
		const double	costOfElectricity,
		const double	leakPressure,
		const double	leakTemp,
		const double	feedwaterTemp,
		const double	boilerEfficiency,
		const double	systemEfficiency,
		const UtilityType	utilityType,
		const double	fuelCost = `0`,
		const double	fuelEnergyFactor = `1`,
		const double	steamCost = `0`
	)

inline

Constructor for SteamLeakSurvey, generic

Parameters

operatingTime	double, operating time of the system hours per year
steamTemp	double, steam temperature F (must be greater than 212F)
steamPressure	double, steam pressure in psig
costOfElectricity	double, $/kWh, default 0
leakPressure	double, leak pressure in psig
leakTemp	double, leak temperature F
feedwaterTemp	double, feedwater temperature in F (must be below boiling point of water, max 212F)
boilerEfficiency	double, boiler efficiency percentage (0 - 100 %)
systemEfficiency	double, system efficiency percentage (0 - 100 %)
utilityType	utility type enumeration
fuelCost	double, per MCF (unit cost of fuel for the boiler system), when utility type Natural Gas
fuelEnergyFactor	double, MMBtu/MCF (energy content for a given volume of fuel, when unit is in $/volume)
steamCost	double, $/lb

Definition at line 111 of file steam_leak_survey.h.

Member Function Documentation

◆ calculate()

SteamLeakSurveyResults SteamLeakSurvey::calculate	(	const double	leakRate,
		const double	turbineEfficiency = `0`
	)		const

inlineprivate

Definition at line 229 of file steam_leak_survey.h.

◆ costOfSteam() [1/2]

double SteamLeakSurvey::costOfSteam ( ) const

inline

Returns: steamCost computed based on fuel type steam or electric or natural gas

Definition at line 224 of file steam_leak_survey.h.

◆ costOfSteam() [2/2]

double SteamLeakSurvey::costOfSteam ( const double turbineEfficiency ) const

inline

Returns: steamCost computed based on fuel type steam or electric or natural gas and turbine (efficiency, energy is recovered from dropping the pressure)

Definition at line 213 of file steam_leak_survey.h.

◆ estimateMethodPRVCalc()

SteamLeakSurveyResults SteamLeakSurvey::estimateMethodPRVCalc ( const double leakRate ) const

inline

Parameters

leakRate double, lb/hr

Returns: SteamLeakSurvey::Output, leakRate lb/hr, steamLoss klb/yr, energyLoss MMBtu/yr, leakCost MMBtu/lb-MCF

Definition at line 158 of file steam_leak_survey.h.

◆ estimateMethodTurbineCalc()

SteamLeakSurveyResults SteamLeakSurvey::estimateMethodTurbineCalc	(	const double	turbineEfficiency,
		const double	leakRate
	)		const

inline

Parameters

turbineEfficiency	double, system efficiency percentage (0 - 100 %)
leakRate	double, lb/hr

Returns: SteamLeakSurvey::Output, leakRate lb/hr, leakEnthalpy btu/lb, steamLoss klb/yr, energyLoss MMBtu/yr, leakCost MMBtu/lb-MCF

Definition at line 168 of file steam_leak_survey.h.

◆ orificeMethodCalc()

SteamLeakSurveyResults SteamLeakSurvey::orificeMethodCalc	(	const double	turbineEfficiency,
		const double	holeSize,
		const double	dischargeCoef,
		const double	atmPressure
	)		const

inline

Parameters

turbineEfficiency	double, system efficiency percentage (0 - 100 %)
holeSize	double, estimated diameter of orifice through which steam is leaking in inches
dischargeCoef	double, discharge coefficient used to capture the effect of the shape of the leak rate as fraction (0 - 1)
atmPressure	double, atmospheric pressure (standard pressure is 14.7 psia, range 0 - 20)

Returns: SteamLeakSurvey::Output, leakRate lb/hr, leakEnthalpy btu/lb, steamLoss klb/yr, energyLoss MMBtu/yr, leakCost MMBtu/lb-MCF

Definition at line 180 of file steam_leak_survey.h.

◆ plumeMethodCalc()

SteamLeakSurveyResults SteamLeakSurvey::plumeMethodCalc	(	const double	turbineEfficiency,
		const double	plumeLength,
		const double	ambTemp
	)		const

inline

Parameters

turbineEfficiency	double, system efficiency percentage (0 - 100 %)
plumeLength	double, feet (range 3 - 12 feet)
ambTemp	double, ambient temperature (usually between 45 and 90 degrees F)

Returns: SteamLeakSurvey::Output, leakRate lb/hr, leakEnthalpy btu/lb, steamLoss klb/yr, energyLoss MMBtu/yr, leakCost MMBtu/lb-MCF

Definition at line 204 of file steam_leak_survey.h.

Member Data Documentation

◆ costOfElectricity

double SteamLeakSurvey::costOfElectricity = 0

private

Definition at line 239 of file steam_leak_survey.h.

◆ feedwaterEnthalpy

double SteamLeakSurvey::feedwaterEnthalpy = 38.16

private

Definition at line 242 of file steam_leak_survey.h.

◆ isentropicEnthalpy

double SteamLeakSurvey::isentropicEnthalpy = 1220.35

private

Definition at line 241 of file steam_leak_survey.h.

◆ leakDensity

double SteamLeakSurvey::leakDensity = 0

private

Definition at line 244 of file steam_leak_survey.h.

◆ leakEnthalpy

double SteamLeakSurvey::leakEnthalpy = 1208.07

private

Definition at line 243 of file steam_leak_survey.h.

◆ leakPressure

double SteamLeakSurvey::leakPressure = 0

private

Definition at line 239 of file steam_leak_survey.h.

◆ operatingTime

double SteamLeakSurvey::operatingTime = 0

private

Definition at line 239 of file steam_leak_survey.h.

◆ specificHeatRatio

double SteamLeakSurvey::specificHeatRatio = 1.3

private

Definition at line 245 of file steam_leak_survey.h.

◆ steamCost

double SteamLeakSurvey::steamCost = 0

private

Definition at line 239 of file steam_leak_survey.h.

◆ steamPressure

double SteamLeakSurvey::steamPressure = 0

private

Definition at line 239 of file steam_leak_survey.h.

◆ steamSpecificEnthalpy

double SteamLeakSurvey::steamSpecificEnthalpy = 1256.12

private

Definition at line 240 of file steam_leak_survey.h.

The documentation for this class was generated from the following file:

include/steam/steam_leak_survey.h

Classes

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Enumeration Documentation

◆ UtilityType

Constructor & Destructor Documentation

◆ SteamLeakSurvey() [1/4]

◆ SteamLeakSurvey() [2/4]

◆ SteamLeakSurvey() [3/4]

◆ SteamLeakSurvey() [4/4]

Member Function Documentation

◆ calculate()

◆ costOfSteam() [1/2]

◆ costOfSteam() [2/2]

◆ estimateMethodPRVCalc()

◆ estimateMethodTurbineCalc()

◆ orificeMethodCalc()

◆ plumeMethodCalc()

Member Data Documentation

◆ costOfElectricity

◆ feedwaterEnthalpy

◆ isentropicEnthalpy

◆ leakDensity

◆ leakEnthalpy

◆ leakPressure

◆ operatingTime

◆ specificHeatRatio

◆ steamCost

◆ steamPressure

◆ steamSpecificEnthalpy