LinearFresnelDsgIph

Linear Fresnel model with steam heat transfer fluid for industrial process heat applications

PySAM.LinearFresnelDsgIph.default(config) → LinearFresnelDsgIph

Load defaults for the configuration config. Available configurations are:

Note

Some inputs do not have default values and may be assigned a value from the variable’s Required attribute. See variable attribute descriptions below.

PySAM.LinearFresnelDsgIph.from_existing(data, optional config) → LinearFresnelDsgIph: Share data with an existing PySAM class. If optional config is a valid configuration name, load the module’s defaults for that configuration.

PySAM.LinearFresnelDsgIph.new() → LinearFresnelDsgIph

PySAM.LinearFresnelDsgIph.wrap(ssc_data_t) → LinearFresnelDsgIph: Load data from a PySSC object.

Warning

Do not call PySSC.data_free on the ssc_data_t provided to wrap()

LinearFresnelDsgIph is a wrapper for the SSC compute module cmod_linear_fresnel_dsg_iph.cpp

Interdependent Variables

The variables listed below are interdependent with other variables. If you change the value of one of these variables, you may need to change values of other variables. The SAM user interface manages these interdependent variables, but in PySAM, it is up to you change the value of all interdependent variables so they are consistent. See Interdependent Variables for examples and details.

Functions

class PySAM.LinearFresnelDsgIph.LinearFresnelDsgIph

This class contains all the variable information for running a simulation. Variables are grouped together in the subclasses as properties. If property assignments are the wrong type, an error is thrown.

assign(dict) → None

Assign attributes from nested dictionary, except for Outputs

nested_dict = { 'weather': { var: val, ...}, ...}

execute(int verbosity) → None: Execute simulation with verbosity level 0 (default) or 1

export() → dict: Export attributes into nested dictionary

get_data_ptr() → Pointer: Get ssc_data_t pointer

replace(dict) → None

Replace attributes from nested dictionary, except for Outputs. Unassigns all values in each Group then assigns from the input dict.

nested_dict = { 'weather': { var: val, ...}, ...}

unassign(name) → None: Unassign a value in any of the variable groups.

value(name, optional value) → None | float | dict | sequence | str: Get or set by name a value in any of the variable groups.

Weather Group

class PySAM.LinearFresnelDsgIph.LinearFresnelDsgIph.Weather

assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

Weather_vals = { var: val, ...}

export() → dict: Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

Weather_vals = { var: val, ...}

file_name

local weather file path

Constraints: LOCAL_FILE

Required: True

Type:: str

solar_resource_data

Weather resource data in memory

Required: False for configuration with default inputs. May be required if a variable dependent on its value changes. Example: For the Detailed PV - Single Owner configuration, only Subarray 1 is enabled in the configuration defaults, so Subarray 2 inputs would not be required; if Subarray 2 is enabled, then Subarray 2 inputs is required.

Type:: dict

Solarfield Group

class PySAM.LinearFresnelDsgIph.LinearFresnelDsgIph.Solarfield

assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

Solarfield_vals = { var: val, ...}

export() → dict: Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

Solarfield_vals = { var: val, ...}

A_aperture

(boiler, SH) Reflective aperture area of the collector module [m^2]

Required: True

Type:: sequence[sequence]

AbsorberMaterial

(boiler, SH) Absorber material type [none]

Required: True

Type:: sequence[sequence]

AnnulusGas

# field fracs) [none]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) Annulus gas type {1=air; 26=Ar; 27=H2} (4

ColAz

Collector azimuth angle [deg]

Required: True

Type:: float

D_2

(boiler, SH) The inner absorber tube diameter [m]

Required: True

Type:: sequence[sequence]

D_3

(boiler, SH) The outer absorber tube diameter [m]

Required: True

Type:: sequence[sequence]

D_4

(boiler, SH) The inner glass envelope diameter [m]

Required: True

Type:: sequence[sequence]

D_5

(boiler, SH) The outer glass envelope diameter [m]

Required: True

Type:: sequence[sequence]

D_p

(boiler, SH) The diameter of the absorber flow plug (optional) [m]

Required: True

Type:: sequence[sequence]

Design_loss

# field fracs) [W/m]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) Receiver heat loss at design (4

Dirt_HCE

# field fracs) [none]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) Loss due to dirt on the receiver envelope (4

EPSILON_4

# field fracs) [none]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) Inner glass envelope emissivities (Pyrex) (4

Flow_type

(boiler, SH) The flow type through the absorber [none]

Required: True

Type:: sequence[sequence]

GeomEffects

(boiler, SH) User-defined geometry effects derate [none]

Required: True

Type:: sequence[sequence]

GlazingIntactIn

# field fracs) [none]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) The glazing intact flag {true=0; false=1} (4

HCE_FieldFrac

# field fracs) [none]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) The fraction of the field occupied by this HCE type (4

HLCharType

(boiler, SH) Flag indicating the heat loss model type {1=poly.; 2=Forristall} [none]

Required: True

Type:: sequence[sequence]

HL_W

(boiler, SH) Heat loss coef adj wind velocity (0,1,2,3,4 order terms) [1/(m/s)^order]

Required: True

Type:: sequence[sequence]

HL_dT

(boiler, SH) Heat loss coefficient - HTF temperature (0,1,2,3,4 order terms) [W/m-K^order]

Required: True

Type:: sequence[sequence]

IAM_L

(boiler, SH) Longitudinal Incident angle modifiers (0,1,2,3,4 order terms) [none]

Required: True

Type:: sequence[sequence]

IAM_T

(boiler, SH) Transverse Incident angle modifiers (0,1,2,3,4 order terms) [none]

Required: True

Type:: sequence[sequence]

I_bn_des

Design point irradiation value [W/m2]

Required: True

The value of the following variables depends on I_bn_des:

Type:: float

L_col

(boiler, SH) Active length of the superheater section collector module [m]

Required: True

Type:: sequence[sequence]

OptCharType

(boiler, SH) The optical characterization method [none]

Required: True

Type:: sequence[sequence]

P_a

# field fracs) [torr]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) Annulus gas pressure (4

P_turb_des

Design-point turbine inlet pressure [bar]

Required: True

The value of the following variables depends on P_turb_des:

Type:: float

Pipe_hl_coef

Loss coefficient from the header.. runner pipe.. and non-HCE pipin [W/m2-K]

Required: True

Type:: float

Rough

(boiler, SH) Roughness of the internal surface [m]

Required: True

Type:: sequence[sequence]

SCA_drives_elec

Tracking power.. in Watts per m2 [W/m2]

Required: True

Type:: float

Shadowing

# field fracs) [none]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) Receiver bellows shadowing loss factor (4

T_amb_des_sf

Design-point ambient temperature [C]

Required: True

The value of the following variables depends on T_amb_des_sf:

Type:: float

T_fp

Freeze protection temperature (heat trace activation temperature) [C]

Required: True

Type:: float

Tau_envelope

# field fracs) [none]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) Envelope transmittance (4

TrackingError

(boiler, SH) User-defined tracking error derate [none]

Required: True

Type:: sequence[sequence]

V_wind_max

Maximum allowable wind velocity before safety stow [m/s]

Required: True

Type:: float

alpha_abs

# field fracs) [none]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) Absorber absorptance (4

alpha_env

# field fracs) [none]

Required: True

Type:: sequence[sequence]
Type:: (boiler, SH) Envelope absorptance (4

b_OpticalTable

Values of the optical efficiency table [none]

Required: True

Type:: sequence[sequence]

b_eps_HCE1

(temperature) Absorber emittance (eps) [none]

Required: True

Type:: sequence[sequence]

b_eps_HCE2

(temperature) Absorber emittance (eps) [none]

Required: True

Type:: sequence[sequence]

b_eps_HCE3

(temperature) Absorber emittance (eps) [none]

Required: True

Type:: sequence[sequence]

b_eps_HCE4

(temperature) Absorber emittance (eps) [none]

Required: True

Type:: sequence[sequence]

deltaT_subcooled

Subcooled temperature difference from saturation temp [C]

Required: False. Automatically set to 1.23 if not assigned explicitly or loaded from defaults.

The value of the following variables depends on deltaT_subcooled:

Type:: float

dirt_mirror

(boiler, SH) User-defined dirt on mirror derate [none]

Required: True

Type:: sequence[sequence]

e_startup

Thermal inertia contribution per sq meter of solar field [kJ/K-m2]

Required: True

Type:: float

error

(boiler, SH) User-defined general optical error derate [none]

Required: True

Type:: sequence[sequence]

eta_pump

Feedwater pump efficiency [none]

Required: True

Type:: float

fP_hdr_c

Average design-point cold header pressure drop fraction [none]

Required: True

Type:: float

fP_hdr_h

Average design-point hot header pressure drop fraction [none]

Required: True

Type:: float

fP_sf_boil

Design-point pressure drop across the solar field boiler fraction [none]

Required: True

Type:: float

nLoops

Number of loops [none]

Required: True

The value of nLoops depends on the following variables:

Type:: float

nModBoil

Number of modules in the boiler section [none]

Constraints: INTEGER

Required: True

The value of the following variables depends on nModBoil:

Type:: float

q_pb_des

Design heat input to the power block [MW]

Required: True

The value of the following variables depends on q_pb_des:

Type:: float

rho_mirror_clean

(boiler, SH) User-defined clean mirror reflectivity [none]

Required: True

Type:: sequence[sequence]

sh_OpticalTable

Values of the optical efficiency table [none]

Required: True

Type:: sequence[sequence]

sh_eps_HCE1

(temperature) Absorber emittance (eps) [none]

Required: True

Type:: sequence[sequence]

sh_eps_HCE2

(temperature) Absorber emittance (eps) [none]

Required: True

Type:: sequence[sequence]

sh_eps_HCE3

(temperature) Absorber emittance (eps) [none]

Required: True

Type:: sequence[sequence]

sh_eps_HCE4

(temperature) Absorber emittance (eps) [none]

Required: True

Type:: sequence[sequence]

theta_dep

deploy angle [deg]

Required: True

Type:: float

theta_stow

stow angle [deg]

Required: True

Type:: float

use_quality_or_subcooled

0 = 2 phase outlet, 1 = subcooled

Required: False. Automatically set to 0 if not assigned explicitly or loaded from defaults.

The value of the following variables depends on use_quality_or_subcooled:

Type:: float

x_b_des

Design point boiler outlet steam quality [none]

Required: True

Type:: float

Powerblock Group

class PySAM.LinearFresnelDsgIph.LinearFresnelDsgIph.Powerblock

assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

Powerblock_vals = { var: val, ...}

export() → dict: Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

Powerblock_vals = { var: val, ...}

T_cold_ref

Reference HTF outlet temperature at design [C]

Required: True

The value of the following variables depends on T_cold_ref:

Type:: float

Heliostat Group

class PySAM.LinearFresnelDsgIph.LinearFresnelDsgIph.Heliostat

assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

Heliostat_vals = { var: val, ...}

export() → dict: Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

Heliostat_vals = { var: val, ...}

csp_lf_sf_washes_per_year

Mirror washing frequency [-/year]

Required: True

Type:: float

csp_lf_sf_water_per_wash

Water usage per wash [L/m2_aper]

Required: True

Type:: float

HeatSink Group

class PySAM.LinearFresnelDsgIph.LinearFresnelDsgIph.HeatSink

assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

HeatSink_vals = { var: val, ...}

export() → dict: Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

HeatSink_vals = { var: val, ...}

heat_sink_dP_frac

Fractional pressure drop through heat sink

Required: True

Type:: float

AdjustmentFactors Group

class PySAM.AdjustmentFactors.AdjustmentFactors

assign() → None: Assign attributes from dictionary

export() → Dict: Export attributes into dictionary

constant: AC Constant loss adjustment [%]

dc_constant: DC Constant loss adjustment [%]

dc_en_hourly: Enable DC hourly-based adjustment factors [0/1]

dc_en_periods: Enable DC period-based adjustment factors [0/1]

dc_en_timeindex: Enable DC lfetime adjustment factors [0/1]

dc_hourly: DC Hourly Adjustment Factors [%]

dc_periods: DC Period-based Adjustment Factors [%]

dc_timeindex: DC Lifetime Adjustment Factors [%]

en_hourly: Enable AC hourly-based adjustment factors [0/1]

en_periods: Enable AC period-based adjustment factors [0/1]

en_timeindex: Enable AC lfetime adjustment factors [0/1]

hourly: AC Hourly Adjustment Factors [%]

periods: AC Period-based Adjustment Factors [%]

sf_constant: DC Constant loss adjustment [%]

sf_en_hourly: Enable SF hourly-based adjustment factors [0/1]

sf_en_periods: Enable SF period-based adjustment factors [0/1]

sf_en_timeindex: Enable SF lfetime adjustment factors [0/1]

sf_hourly: SF Hourly Adjustment Factors [%]

sf_periods: SF Period-based Adjustment Factors [%]

sf_timeindex: SF Lifetime Adjustment Factors [%]

timeindex: AC Lifetime Adjustment Factors [%]

Outputs Group

class PySAM.LinearFresnelDsgIph.LinearFresnelDsgIph.Outputs

assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

Outputs_vals = { var: val, ...}

export() → dict: Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

Outputs_vals = { var: val, ...}

T_field_cold_in

Field timestep-averaged inlet temperature [C]

Type:: sequence

T_field_hot_out

Field timestep-averaged outlet temperature [C]

Type:: sequence

T_rec_cold_in

Loop timestep-averaged inlet temperature [C]

Type:: sequence

T_rec_hot_out

Loop timestep-averaged outlet temperature [C]

Type:: sequence

W_dot_field_pump

Field htf pumping power [MWe]

Type:: sequence

W_dot_heat_sink_pump

Heat sink pumping power [MWe]

Type:: sequence

W_dot_parasitic_tot

System total electrical parasitic [MWe]

Type:: sequence

W_dot_sca_track

Field collector tracking power [MWe]

Type:: sequence

annual_electricity_consumption

Annual electricity consumptoin w/ avail derate [kWe-hr]

Type:: float

annual_energy

Annual Net Thermal Energy Production w/ avail derate [kWt-hr]

Type:: float

annual_energy_distribution_time

Annual energy production as function of time [kW]

Type:: sequence[sequence]

annual_field_energy

Annual Gross Thermal Energy Production w/ avail derate [kWt-hr]

Type:: float

annual_thermal_consumption

Annual thermal freeze protection required [kWt-hr]

Type:: float

annual_total_water_use

Total Annual Water Usage [m^3]

Type:: float

beam

Resource Beam normal irradiance [W/m2]

Type:: sequence

capacity_factor

Capacity factor [%]

Type:: float

defocus

Field collector focus fraction

Type:: sequence

deltaP_field

Field pressure drop [bar]

Type:: sequence

e_dot_field_int_energy

Field change in material/htf internal energy [MWt]

Type:: sequence

eta_opt_ave

Field optical efficiency before defocus [deg]

Type:: sequence

gen

System power generated [kW]

Type:: sequence

hour_day

Resource Hour of Day

Type:: sequence

kwh_per_kw

First year kWh/kW [kWht/kWt]

Type:: float

m_dot_field

Field total mass flow rate [kg/s]

Type:: sequence

m_dot_loop

Receiver mass flow rate [kg/s]

Type:: sequence

month

Resource Month

Type:: sequence

op_mode_1

1st operating mode

Type:: sequence

op_mode_2

2nd op. mode, if applicable

Type:: sequence

op_mode_3

3rd op. mode, if applicable

Type:: sequence

pres

Resource Pressure [mbar]

Type:: sequence

q_dot_freeze_prot

Field freeze protection required [MWt]

Type:: sequence

q_dot_piping_loss

Field piping thermal losses [MWt]

Type:: sequence

q_dot_rec_abs

Receiver thermal power absorbed [MWt]

Type:: sequence

q_dot_rec_inc

Receiver thermal power incident [MWt]

Type:: sequence

q_dot_rec_thermal_loss

Receiver thermal losses [MWt]

Type:: sequence

q_dot_sf_out

Field thermal power leaving in steam [MWt]

Type:: sequence

q_dot_to_heat_sink

Heat sink thermal power [MWt]

Type:: sequence

q_inc_sf_tot

Field thermal power incident [MWt]

Type:: sequence

solazi

Resource Solar Azimuth [deg]

Type:: sequence

solzen

Resource Solar Zenith [deg]

Type:: sequence

tdry

Resource Dry bulb temperature [C]

Type:: sequence

theta_longitudinal

Field traverse incidence angle [deg]

Type:: sequence

theta_traverse

Field traverse incidence angle [deg]

Type:: sequence

time_hr

Time at end of timestep [hr]

Type:: sequence

twet

Resource Wet bulb temperature [C]

Type:: sequence

wspd

Resource Wind Speed [m/s]

Type:: sequence

x_field_hot_out

Field timestep-averaged outlet quality

Type:: sequence

x_rec_hot_out

Loop timestep-averaged outlet quality

Type:: sequence