TroughPhysicalProcessHeat¶

Parabolic trough for industrial process heat applications

PySAM.TroughPhysicalProcessHeat.default(config) → TroughPhysicalProcessHeat¶

Load defaults for the configuration config. Available configurations are:

“PhysicalTroughIPHLCOHCalculator”

“PhysicalTroughIPHNone”

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

PySAM.TroughPhysicalProcessHeat.new() → TroughPhysicalProcessHeat¶

PySAM.TroughPhysicalProcessHeat.wrap(ssc_data_t) → TroughPhysicalProcessHeat¶: Load data from a PySSC object.

Warning

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

TroughPhysicalProcessHeat is a wrapper for the SSC compute module cmod_trough_physical_process_heat.cpp

Functions¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat¶

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

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) → Union[None, float, dict, sequence, str]¶: Get or set by name a value in any of the variable groups.

Weather Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.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, ...}

azimuth¶

Azimuth angle of surface/axis [none]

Required: True

Type:	float

file_name¶

Local weather file with path [none]

Constraints: LOCAL_FILE

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:	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

tilt¶

Tilt angle of surface/axis [none]

Required: True

Type:	float

track_mode¶

Tracking mode [none]

Required: True

Type:	float

SolarField Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.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¶

Reflective aperture area of the collector [m2]

Required: True

Type:	sequence

AbsorberMaterial¶

Absorber material type [none]

Required: True

Type:	sequence[sequence]

AnnulusGas¶

Annulus gas type (1=air, 26=Ar, 27=H2) [none]

Required: True

Type:	sequence[sequence]

Ave_Focal_Length¶

Average focal length of the collector [m]

Required: True

Type:	sequence

ColperSCA¶

Number of individual collector sections in an SCA [none]

Required: True

Type:	sequence

D_2¶

Inner absorber tube diameter [m]

Required: True

Type:	sequence[sequence]

D_3¶

Outer absorber tube diameter [m]

Required: True

Type:	sequence[sequence]

D_4¶

Inner glass envelope diameter [m]

Required: True

Type:	sequence[sequence]

D_5¶

Outer glass envelope diameter [m]

Required: True

Type:	sequence[sequence]

D_cpnt¶

Interconnect component diameters, row=intc, col=cpnt [none]

Required: True

Type:	sequence[sequence]

D_p¶

Diameter of the absorber flow plug (optional) [m]

Required: True

Type:	sequence[sequence]

Design_loss¶

Receiver heat loss at design [W/m]

Required: True

Type:	sequence[sequence]

Dirt_HCE¶

Loss due to dirt on the receiver envelope [none]

Required: True

Type:	sequence[sequence]

Dirt_mirror¶

User-defined dirt on mirror derate [none]

Required: True

Type:	sequence

Distance_SCA¶

Piping distance between SCA’s in the field [m]

Required: True

Type:	sequence

EPSILON_4¶

Inner glass envelope emissivities (Pyrex) [none]

Required: True

Type:	sequence[sequence]

EPSILON_5¶

Outer glass envelope emissivities (Pyrex) [none]

Required: True

Type:	sequence[sequence]

Error¶

User-defined general optical error derate [none]

Required: True

Type:	sequence

FieldConfig¶

Number of subfield headers [none]

Required: True

Type:	float

Flow_type¶

Flow type through the absorber [none]

Required: True

Type:	sequence[sequence]

Fluid¶

Field HTF fluid ID number [none]

Required: True

Type:	float

GeomEffects¶

User-defined geometry effects derate [none]

Required: True

Type:	sequence

GlazingIntactIn¶

Glazing intact (broken glass) flag {1=true, else=false} [none]

Required: True

Type:	sequence[sequence]

HCE_FieldFrac¶

Fraction of the field occupied by this HCE type [none]

Required: True

Type:	sequence[sequence]

HDR_rough¶

Header pipe roughness [m]

Required: True

Type:	float

IAM_matrix¶

IAM coefficients, matrix for 4 collectors [none]

Required: True

Type:	sequence[sequence]

I_bn_des¶

Solar irradiation at design [C]

Required: True

Type:	float

K_cpnt¶

Interconnect component minor loss coefficients, row=intc, col=cpnt [none]

Required: True

Type:	sequence[sequence]

L_SCA¶

Length of the SCA [m]

Required: True

Type:	sequence

L_aperture¶

Length of a single mirror/HCE unit [m]

Required: True

Type:	sequence

L_cpnt¶

Interconnect component lengths, row=intc, col=cpnt [none]

Required: True

Type:	sequence[sequence]

L_heat_sink_piping¶

Length of piping (full mass flow) through heat sink (if applicable) [none]

Required: True

Type:	float

L_rnr_per_xpan¶

Threshold length of straight runner pipe without an expansion loop [m]

Required: True

Type:	float

L_xpan_hdr¶

Compined perpendicular lengths of each header expansion loop [m]

Required: True

Type:	float

L_xpan_rnr¶

Compined perpendicular lengths of each runner expansion loop [m]

Required: True

Type:	float

Min_rnr_xpans¶

Minimum number of expansion loops per single-diameter runner section [none]

Required: True

Type:	float

N_hdr_per_xpan¶

Number of collector loops per expansion loop [none]

Required: True

Type:	float

N_max_hdr_diams¶

Maximum number of diameters in each of the hot and cold headers [none]

Required: True

Type:	float

P_a¶

Annulus gas pressure [torr]

Required: True

Type:	sequence[sequence]

Pipe_hl_coef¶

Loss coefficient from the header, runner pipe, and non-HCE piping [m/s]

Required: True

Type:	float

Rho_mirror_clean¶

User-defined clean mirror reflectivity [none]

Required: True

Type:	sequence

Rough¶

Roughness of the internal surface [m]

Required: True

Type:	sequence[sequence]

Row_Distance¶

Spacing between rows (centerline to centerline) [m]

Required: True

Type:	float

SCA_drives_elec¶

Tracking power, in Watts per SCA drive [W/m2-K]

Required: True

Type:	float

Shadowing¶

Receiver bellows shadowing loss factor [none]

Required: True

Type:	sequence[sequence]

T_fp¶

Freeze protection temperature (heat trace activation temperature) [none]

Required: True

Type:	float

T_loop_in_des¶

Design loop inlet temperature [C]

Required: True

Type:	float

T_loop_out¶

Target loop outlet temperature [C]

Required: True

Type:	float

Tau_envelope¶

Envelope transmittance [none]

Required: True

Type:	sequence[sequence]

TrackingError¶

User-defined tracking error derate [none]

Required: True

Type:	sequence

Type_cpnt¶

Interconnect component type, row=intc, col=cpnt [none]

Required: True

Type:	sequence[sequence]

V_hdr_cold_max¶

Maximum HTF velocity in the cold headers at design [m/s]

Required: True

Type:	float

V_hdr_cold_min¶

Minimum HTF velocity in the cold headers at design [m/s]

Required: True

Type:	float

V_hdr_hot_max¶

Maximum HTF velocity in the hot headers at design [m/s]

Required: True

Type:	float

V_hdr_hot_min¶

Minimum HTF velocity in the hot headers at design [m/s]

Required: True

Type:	float

W_aperture¶

The collector aperture width (Total structural area used for shadowing) [m]

Required: True

Type:	sequence

accept_init¶

In acceptance testing mode - require steady-state startup [none]

Required: True

Type:	float

accept_loc¶

In acceptance testing mode - temperature sensor location [1/2]

Info: hx/loop

Required: True

Type:	float

accept_mode¶

Acceptance testing mode? [0/1]

Info: no/yes

Required: True

Type:	float

alpha_abs¶

Absorber absorptance [none]

Required: True

Type:	sequence[sequence]

alpha_env¶

Envelope absorptance [none]

Required: True

Type:	sequence[sequence]

calc_design_pipe_vals¶

Calculate temps and pressures at design conditions for runners and headers [none]

Required: True

Type:	float

custom_sf_pipe_sizes¶

Use custom solar field pipe diams, wallthks, and lengths [none]

Required: True

Type:	float

epsilon_3_11¶

Absorber emittance for receiver type 1 variation 1 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_12¶

Absorber emittance for receiver type 1 variation 2 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_13¶

Absorber emittance for receiver type 1 variation 3 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_14¶

Absorber emittance for receiver type 1 variation 4 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_21¶

Absorber emittance for receiver type 2 variation 1 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_22¶

Absorber emittance for receiver type 2 variation 2 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_23¶

Absorber emittance for receiver type 2 variation 3 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_24¶

Absorber emittance for receiver type 2 variation 4 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_31¶

Absorber emittance for receiver type 3 variation 1 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_32¶

Absorber emittance for receiver type 3 variation 2 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_33¶

Absorber emittance for receiver type 3 variation 3 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_34¶

Absorber emittance for receiver type 3 variation 4 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_41¶

Absorber emittance for receiver type 4 variation 1 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_42¶

Absorber emittance for receiver type 4 variation 2 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_43¶

Absorber emittance for receiver type 4 variation 3 [none]

Required: True

Type:	sequence[sequence]

epsilon_3_44¶

Absorber emittance for receiver type 4 variation 4 [none]

Required: True

Type:	sequence[sequence]

eta_pump¶

HTF pump efficiency [none]

Required: True

Type:	float

is_model_heat_sink_piping¶

Should model consider piping through heat sink? [none]

Required: True

Type:	float

m_dot_htfmax¶

Maximum loop HTF flow rate [kg/s]

Required: True

Type:	float

m_dot_htfmin¶

Minimum loop HTF flow rate [kg/s]

Required: True

Type:	float

mc_bal_cold¶

Heat capacity of the balance of plant on the cold side [kWht/K-MWt]

Required: True

Type:	float

mc_bal_hot¶

Heat capacity of the balance of plant on the hot side [kWht/K-MWt]

Info: none

Required: True

Type:	float

mc_bal_sca¶

Non-HTF heat capacity associated with each SCA - per meter basis [Wht/K-m]

Required: True

Type:	float

nColt¶

Number of collector types [none]

Options: constant=4

Required: True

Type:	float

nHCEVar¶

Number of HCE variants per type [none]

Required: True

Type:	float

nHCEt¶

Number of HCE types [none]

Required: True

Type:	float

nLoops¶

Number of loops in the field [none]

Required: True

Type:	float

nSCA¶

Number of SCAs in a loop [none]

Required: True

Type:	float

northsouth_field_sep¶

North/south separation between subfields. 0 = SCAs are touching [m]

Required: True

Type:	float

offset_xpan_hdr¶

Location of first header expansion loop. 1 = after first collector loop [none]

Required: True

Type:	float

sf_hdr_diams¶

Custom header diameters [m]

Required: True

Type:	sequence[sequence]

sf_hdr_lengths¶

Custom header lengths [m]

Required: True

Type:	sequence[sequence]

sf_hdr_wallthicks¶

Custom header wall thicknesses [m]

Required: True

Type:	sequence[sequence]

sf_rnr_diams¶

Custom runner diameters [m]

Required: True

Type:	sequence[sequence]

sf_rnr_lengths¶

Custom runner lengths [m]

Required: True

Type:	sequence[sequence]

sf_rnr_wallthicks¶

Custom runner wall thicknesses [m]

Required: True

Type:	sequence[sequence]

theta_dep¶

Deploy angle [deg]

Required: True

Type:	float

theta_stow¶

Stow angle [deg]

Required: True

Type:	float

washing_frequency¶

Mirror washing frequency [-/year]

Required: True

Type:	float

water_usage_per_wash¶

Water usage per wash [L/m2_aper]

Required: True

Type:	float

wind_stow_speed¶

Trough wind stow speed [m/s]

Required: False. Automatically set to 50 if not assigned explicitly or loaded from defaults.

Type:	float

Controller Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.Controller¶

assign(dict) → None¶

Assign attributes from dictionary, overwriting but not removing values.

Controller_vals = { var: val, ...}

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

replace(dict) → None¶

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

Controller_vals = { var: val, ...}

disp_wlim_maxspec¶

disp_wlim_maxspec [-]

Required: True

Type:	float

field_fl_props¶

User defined field fluid property data [-]

Required: True

Type:	sequence[sequence]

non_solar_field_land_area_multiplier¶

non_solar_field_land_area_multiplier [-]

Required: True

Type:	float

pb_pump_coef¶

Pumping power to move 1kg of HTF through PB loop [kW/kg]

Required: True

Type:	float

q_pb_design¶

Design heat input to power block [MWt]

Required: True

Type:	float

specified_solar_multiple¶

specified_solar_multiple [-]

Required: True

Type:	float

tanks_in_parallel¶

Tanks are in parallel, not in series, with solar field [-]

Required: True

Type:	float

trough_loop_control¶

trough_loop_control [-]

Required: True

Type:	sequence

SystemDesign Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.SystemDesign¶

assign(dict) → None¶

Assign attributes from dictionary, overwriting but not removing values.

SystemDesign_vals = { var: val, ...}

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

replace(dict) → None¶

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

SystemDesign_vals = { var: val, ...}

tshours¶

Equivalent full-load thermal storage hours [hr]

Required: True

Type:	float

TES Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.TES¶

assign(dict) → None¶

Assign attributes from dictionary, overwriting but not removing values.

TES_vals = { var: val, ...}

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

replace(dict) → None¶

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

TES_vals = { var: val, ...}

cold_tank_Thtr¶

Minimum allowable cold tank HTF temp [C]

Required: True

Type:	float

cold_tank_max_heat¶

Rated heater capacity for cold tank heating [MW]

Required: True

Type:	float

h_tank¶

Total height of tank (height of HTF when tank is full [m]

Required: True

Type:	float

init_hot_htf_percent¶

Initial fraction of avail. vol that is hot [%]

Required: True

Type:	float

tank_pairs¶

Number of equivalent tank pairs [-]

Constraints: INTEGER

Required: True

Type:	float

u_tank¶

Loss coefficient from the tank [W/m2-K]

Required: True

Type:	float

TES2tank Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.TES2tank¶

assign(dict) → None¶

Assign attributes from dictionary, overwriting but not removing values.

TES2tank_vals = { var: val, ...}

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

replace(dict) → None¶

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

TES2tank_vals = { var: val, ...}

h_tank_min¶

Minimum allowable HTF height in storage tank [m]

Required: True

Type:	float

hot_tank_Thtr¶

Minimum allowable hot tank HTF temp [C]

Required: True

Type:	float

hot_tank_max_heat¶

Rated heater capacity for hot tank heating [MW]

Required: True

Type:	float

Tou Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.Tou¶

assign(dict) → None¶

Assign attributes from dictionary, overwriting but not removing values.

Tou_vals = { var: val, ...}

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

replace(dict) → None¶

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

Tou_vals = { var: val, ...}

ampl_data_dir¶

AMPL data file directory [-]

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

Type:	str

ampl_exec_call¶

System command to run AMPL code [-]

Required: False. Automatically set to ‘ampl sdk_solution.run’ if not assigned explicitly or loaded from defaults.

Type:	str

disp_csu_cost_rel¶

Heat sink startup cost [$/MWe-cycle/start]

Required: Required if is_dispatch=1

Type:	float

disp_frequency¶

Frequency for dispatch optimization calculations [hour]

Required: Required if is_dispatch=1

Type:	float

disp_horizon¶

Time horizon for dispatch optimization [hour]

Required: Required if is_dispatch=1

Type:	float

disp_max_iter¶

Max. no. dispatch optimization iterations [-]

Required: Required if is_dispatch=1

Type:	float

disp_mip_gap¶

Dispatch optimization solution tolerance [-]

Required: Required if is_dispatch=1

Type:	float

disp_pen_ramping¶

Dispatch heat production change penalty [$/MWt-change]

Required: Required if is_dispatch=1

Type:	float

disp_reporting¶

Dispatch optimization reporting level [-]

Required: False. Automatically set to -1 if not assigned explicitly or loaded from defaults.

Type:	float

disp_rsu_cost_rel¶

Receiver startup cost [$/MWt/start]

Required: Required if is_dispatch=1

Type:	float

disp_spec_bb¶

Dispatch optimization B&B heuristic [-]

Required: False. Automatically set to -1 if not assigned explicitly or loaded from defaults.

Type:	float

disp_spec_presolve¶

Dispatch optimization presolve heuristic [-]

Required: False. Automatically set to -1 if not assigned explicitly or loaded from defaults.

Type:	float

disp_spec_scaling¶

Dispatch optimization scaling heuristic [-]

Required: False. Automatically set to -1 if not assigned explicitly or loaded from defaults.

Type:	float

disp_steps_per_hour¶

Time steps per hour for dispatch optimization calculations [-]

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

disp_time_weighting¶

Dispatch optimization future time discounting factor [-]

Required: False. Automatically set to 0.99 if not assigned explicitly or loaded from defaults.

Type:	float

disp_timeout¶

Max. dispatch optimization solve duration [s]

Required: Required if is_dispatch=1

Type:	float

dispatch_factor1¶

Dispatch payment factor 1

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

dispatch_factor2¶

Dispatch payment factor 2

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

dispatch_factor3¶

Dispatch payment factor 3

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

dispatch_factor4¶

Dispatch payment factor 4

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

dispatch_factor5¶

Dispatch payment factor 5

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

dispatch_factor6¶

Dispatch payment factor 6

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

dispatch_factor7¶

Dispatch payment factor 7

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

dispatch_factor8¶

Dispatch payment factor 8

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

dispatch_factor9¶

Dispatch payment factor 9

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

dispatch_factors_ts¶

Dispatch payment factor array

Required: Required if ppa_multiplier_model=1

Type:	sequence

dispatch_sched_weekday¶

12x24 PPA pricing Weekday schedule

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	sequence[sequence]

dispatch_sched_weekend¶

12x24 PPA pricing Weekend schedule

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	sequence[sequence]

dispatch_series¶

Time series dispatch factors

Type:	sequence

f_turb_tou_periods¶

Dispatch logic for heat sink load fraction [-]

Required: True

Type:	sequence

is_ampl_engine¶

Run dispatch optimization with external AMPL engine [-]

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

Type:	float

is_dispatch¶

Allow dispatch optimization? [-]

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

Type:	float

is_dispatch_series¶

Use time-series dispatch factors

Required: False. Automatically set to 1 if not assigned explicitly or loaded from defaults.

Type:	float

is_tod_pc_target_also_pc_max¶

Is the TOD target cycle heat input also the max cycle heat input?

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

Type:	float

is_wlim_series¶

Use time-series net heat generation limits

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

Type:	float

is_write_ampl_dat¶

Write AMPL data files for dispatch run [-]

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

Type:	float

ppa_multiplier_model¶

PPA multiplier model [0/1]

Options: 0=diurnal,1=timestep

Constraints: INTEGER,MIN=0

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

Type:	float

q_rec_heattrace¶

Receiver heat trace energy consumption during startup [kWe-hr]

Required: False. Automatically set to 0.0 if not assigned explicitly or loaded from defaults.

Type:	float

q_rec_standby¶

Receiver standby energy consumption [kWt]

Required: False. Automatically set to 9e99 if not assigned explicitly or loaded from defaults.

Type:	float

timestep_load_fractions¶

Turbine load fraction for each timestep, alternative to block dispatch

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:	sequence

weekday_schedule¶

12x24 CSP operation Time-of-Use Weekday schedule [-]

Required: True

Type:	sequence[sequence]

weekend_schedule¶

12x24 CSP operation Time-of-Use Weekend schedule [-]

Required: True

Type:	sequence[sequence]

wlim_series¶

Time series net heat generation limits [kWt]

Required: Required if is_wlim_series=1

Type:	sequence

SystemControl Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.SystemControl¶

assign(dict) → None¶

Assign attributes from dictionary, overwriting but not removing values.

SystemControl_vals = { var: val, ...}

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

replace(dict) → None¶

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

SystemControl_vals = { var: val, ...}

disp_inventory_incentive¶

Dispatch storage terminal inventory incentive multiplier

Required: False. Automatically set to 0.0 if not assigned explicitly or loaded from defaults.

Type:	float

TimeOfDeliveryFactors Group¶

System Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.System¶

assign(dict) → None¶

Assign attributes from dictionary, overwriting but not removing values.

System_vals = { var: val, ...}

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

replace(dict) → None¶

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

System_vals = { var: val, ...}

aux_array¶

Auxiliary heater, mult frac and const, linear and quad coeff

Required: True

Type:	sequence

bop_array¶

Balance of plant parasitic power fraction, mult frac and const, linear and quad coeff

Required: True

Type:	sequence

pb_fixed_par¶

Fraction of rated gross power constantly consumed [MWe/MWcap]

Required: True

Type:	float

Powerblock Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.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, ...}

L_rnr_pb¶

Length of runner pipe in power block [m]

Required: True

Type:	float

AdjustmentFactors Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.AdjustmentFactors¶

assign() → None¶: Assign attributes from dictionary

export() → Dict¶: Export attributes into dictionary

constant¶

float

Type:	type

dc_constant¶: DC Constant loss adjustment [%]

dc_hourly¶: DC Hourly Adjustment Factors [%]

dc_periods¶: DC Period-based Adjustment Factors [%]

hourly¶: AC Hourly Adjustment Factors [%]

periods¶: AC Period-based Adjustment Factors [%]

sf_constant¶: DC Constant loss adjustment [%]

sf_hourly¶: DC Hourly Adjustment Factors [%]

sf_periods¶: DC Period-based Adjustment Factors [%]

Outputs Group¶

class PySAM.TroughPhysicalProcessHeat.TroughPhysicalProcessHeat.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, ...}

CosTh_ave¶

Field collector cosine efficiency

Type:	sequence

EndLoss_ave¶

Field collector optical end loss

Type:	sequence

EqOpteff¶

Field optical efficiency before defocus

Type:	sequence

IAM_ave¶

Field collector incidence angle modifier

Type:	sequence

RowShadow_ave¶

Field collector row shadowing loss

Type:	sequence

SCAs_def¶

Field fraction of focused SCAs

Type:	sequence

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_heat_sink_in¶

Heat sink HTF inlet temp [C]

Type:	sequence

T_heat_sink_out¶

Heat sink HTF outlet temp [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

T_tes_cold¶

TES cold temperature [C]

Type:	sequence

T_tes_hot¶

TES hot temperature [C]

Type:	sequence

Theta_ave¶

Field collector solar incidence angle [deg]

Type:	sequence

W_dot_field_pump¶

Field htf pumping power [MWe]

Type:	sequence

W_dot_parasitic_tot¶

System total electrical parasitic [MWe]

Type:	sequence

W_dot_pc_pump¶

Heat sink pumping power [MWe]

Type:	sequence

W_dot_sca_track¶

Field collector tracking power [MWe]

Type:	sequence

annual_electricity_consumption¶

Annual electricity consumption 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_freeze_protection¶

Annual thermal power for field freeze protection [kWt-hr]

Type:	float

annual_gross_energy¶

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

Type:	float

annual_tes_freeze_protection¶

Annual thermal power for TES freeze protection [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

deltaP_field¶

Field pressure drop [bar]

Type:	sequence

dni_costh¶

Field collector DNI-cosine product [W/m2]

Type:	sequence

e_ch_tes¶

TES charge state [MWht]

Type:	sequence

e_dot_field_int_energy¶

Field change in material/htf internal energy [MWt]

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_balance¶

Relative mass flow balance error

Type:	sequence

m_dot_cr_to_tes_hot¶

field to hot TES [kg/s]

Type:	sequence
Type:	Mass flow

m_dot_cycle_to_field¶

cycle to field [kg/s]

Type:	sequence
Type:	Mass flow

m_dot_field_delivered¶

Field total mass flow delivered [kg/s]

Type:	sequence

m_dot_field_recirc¶

Field total mass flow recirculated [kg/s]

Type:	sequence

m_dot_field_to_cycle¶

field to cycle [kg/s]

Type:	sequence
Type:	Mass flow

m_dot_htf_heat_sink¶

Heat sink HTF mass flow [kg/s]

Type:	sequence

m_dot_loop¶

Receiver mass flow rate [kg/s]

Type:	sequence

m_dot_pc_to_tes_cold¶

cycle to cold TES [kg/s]

Type:	sequence
Type:	Mass flow

m_dot_tes_cold_out¶

TES cold out [kg/s]

Type:	sequence
Type:	Mass flow

m_dot_tes_hot_out¶

TES hot out [kg/s]

Type:	sequence
Type:	Mass flow

mass_tes_cold¶

TES cold tank mass (end) [kg]

Type:	sequence

mass_tes_hot¶

TES hot tank mass (end) [kg]

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_balance¶

Relative energy balance error

Type:	sequence

q_ch_tes¶

TES charge thermal power [MWt]

Type:	sequence

q_dc_tes¶

TES discharge thermal power [MWt]

Type:	sequence

q_dot_freeze_prot¶

Field freeze protection required [MWt]

Type:	sequence

q_dot_htf_sf_out¶

Field thermal power leaving in HTF [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_to_heat_sink¶

Heat sink thermal power [MWt]

Type:	sequence

q_inc_sf_tot¶

Field thermal power incident [MWt]

Type:	sequence

q_tes_heater¶

TES freeze protection power [MWe]

Type:	sequence

qinc_costh¶

Field thermal power incident after cosine [MWt]

Type:	sequence

solar_multiple_actual¶

Actual solar multiple of system [-]

Type:	float

solazi¶

Resource Solar Azimuth [deg]

Type:	sequence

solzen¶

Resource Solar Zenith [deg]

Type:	sequence

tank_losses¶

TES thermal losses [MWt]

Type:	sequence

tdry¶

Resource Dry bulb temperature [C]

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