Tcsdish

Wrapper for SAM Simulation Core model: cmod_tcsdish.cpp

Input Consistency Warning

As described in Possible Problems, some input parameters are interdependent but the equations that enforce consistency are not available in this PySAM module. Therefore, the onus is on the PySAM user to check that interdependencies are correctly handled. The variables which may require additional logic include:

Provided for each of these inputs is a list of other inputs that are potentially interdependent.

Creating an Instance

Refer to the Initializing a Model page for details on the different ways to create an instance of a PySAM class.

Tcsdish model description

CSP dish-Stirling model with parameters for SES and WGA-ADDS systems for power generation

PySAM.Tcsdish.default(config) → Tcsdish

Use default attributes None

PySAM.Tcsdish.from_existing(data, optional config) → Tcsdish

Share underlying data with an existing PySAM class. If config provided, default attributes are loaded otherwise.

PySAM.Tcsdish.new() → Tcsdish
PySAM.Tcsdish.wrap(ssc_data_t) → Tcsdish

Use existing PySSC data

Warning

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

Functions

class PySAM.Tcsdish.Tcsdish

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

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.Tcsdish.Tcsdish.Weather
assign() → None

Assign attributes from dictionary

Weather_vals = { var: val, ...}

export() → dict

Export attributes into dictionary

file_name

local weather file path

Constraints: LOCAL_FILE

Required: True

Type:str

Dish Group

class PySAM.Tcsdish.Tcsdish.Dish
assign() → None

Assign attributes from dictionary

Dish_vals = { var: val, ...}

export() → dict

Export attributes into dictionary

system_capacity

Nameplate capacity [kW]

Required: True

Type:float

Type295 Group

class PySAM.Tcsdish.Tcsdish.Type295
assign() → None

Assign attributes from dictionary

Type295_vals = { var: val, ...}

export() → dict

Export attributes into dictionary

A_proj

Projected mirror area [m^2]

Required: True

Type:float
A_total

Total Area [m^2]

Required: True

Type:float
I_cut_in

Insolation cut in value [W/m^2]

Required: True

Type:float
d_ap

Dish aperture diameter [m]

Required: True

Type:float
d_ap_test

Receiver aperture diameter during test [m]

Required: True

Type:float
ew_dish_sep

Collector separation East-West [m]

Required: True

Type:float
h_slot_gap

Slot gap height [m]

Required: True

Type:float
n_ew

Number of collectors East-West [-]

Constraints: INTEGER

Required: True

Type:float
n_ns

Number of collectors North-South [-]

Constraints: INTEGER

Required: True

Type:float
ns_dish_sep

Collector separation North-South [m]

Required: True

Type:float
rho

Mirror surface reflectivity [-]

Required: True

Type:float
slope_ew

East-West ground slope [%]

Required: True

Type:float
slope_ns

North-South ground slope [%]

Required: True

Type:float
test_L_focal

Focal length of mirror system [m]

Required: True

Type:float
test_if

Test intercept factor [-]

Required: True

Type:float
w_slot_gap

Slot gap width [m]

Required: True

Type:float
wind_stow_speed

Wind stow speed [m/s]

Required: True

Type:float

Type296 Group

class PySAM.Tcsdish.Tcsdish.Type296
assign() → None

Assign attributes from dictionary

Type296_vals = { var: val, ...}

export() → dict

Export attributes into dictionary

A_absorber

Absorber surface area [m^2]

Required: True

Type:float
A_wall

Cavity surface area [m^2]

Required: True

Type:float
DELTA_T_DIR

Delta temperature for DIR receiver [K]

Required: True

Type:float
DELTA_T_REFLUX

Delta temp for REFLUX receiver (always = 40) [K]

Required: True

Type:float
L_cav

Internal depth of cavity perp to aperture [m]

Required: True

Type:float
L_insulation

Insulation thickness [m]

Required: True

Type:float
P_cav

Internal cavity pressure with aperture covered [kPa]

Required: True

Type:float
T_heater_head_high

Heater Head Set Temperature [K]

Required: True

Type:float
T_heater_head_low

Header Head Lowest Temperature [K]

Required: True

Type:float
alpha_absorber

Absorber absorptance [-]

Required: True

Type:float
alpha_wall

Cavity absorptance [-]

Required: True

Type:float
d_cav

Internal diameter of cavity perp to aperture [m]

Required: True

Type:float
k_insulation

Insulation thermal conductivity [W/m-K]

Required: True

Type:float
rec_type

Receiver type (always = 1) [-]

Required: True

Type:float
transmittance_cover

Transmittance cover (always = 1) [-]

Required: True

Type:float

Type297 Group

class PySAM.Tcsdish.Tcsdish.Type297
assign() → None

Assign attributes from dictionary

Type297_vals = { var: val, ...}

export() → dict

Export attributes into dictionary

Beale_const_coef

Beale Constant Coefficient [-]

Required: True

Type:float
Beale_first_coef

Beale first-order coefficient [1/W]

Required: True

Type:float
Beale_fourth_coef

Beale fourth-order coefficient [1/W^4]

Required: True

Type:float
Beale_square_coef

Beale second-order coefficient [1/W^2]

Required: True

Type:float
Beale_third_coef

Beale third-order coefficient [1/W^3]

Required: True

Type:float
Pressure_coef

Pressure constant coefficient [MPa]

Required: True

Type:float
Pressure_first

Pressure first-order coefficient [MPa/W]

Required: True

Type:float
T_compression_in

Receiver efficiency [C]

Required: True

Type:float
V_displaced

Displaced engine volume [m3]

Required: True

Type:float
engine_speed

Engine operating speed [rpm]

Required: True

Type:float

Type298 Group

class PySAM.Tcsdish.Tcsdish.Type298
assign() → None

Assign attributes from dictionary

Type298_vals = { var: val, ...}

export() → dict

Export attributes into dictionary

P_controls

Control System Parasitic Power, Avg. [W]

Required: True

Type:float
P_tower_fan

Tower fan power (set to 0) [kJ/hr]

Required: True

Type:float
T_cool_speed2

Cooling Fluid Temp. For Fan Speed 2 Cut-In [C]

Required: True

Type:float
T_cool_speed3

Cooling Fluid Temp. For Fan Speed 3 Cut-In [C]

Required: True

Type:float
Tower_water_outlet_temp

Tower water outlet temperature (set to 20) [C]

Required: True

Type:float
b_cooler

b_cooler parameter [-]

Required: True

Type:float
b_radiator

b_radiator parameter [-]

Required: True

Type:float
cooling_fluid

1=Water,2=V50%EG,3=V25%EG,4=V40%PG,5=V25%PG [-]

Constraints: INTEGER

Required: True

Type:float
Type:Reference Condition Cooling Fluid
cooling_tower_on

Option to use a cooling tower (set to 0=off) [-]

Required: True

Type:float
d_pipe_tower

Runner pipe diameter to the cooling tower (set to 0.4m) [m]

Required: True

Type:float
epsilon_cooler_test

Cooler effectiveness [-]

Required: True

Type:float
epsilon_power_test

Test value for cooling tower effectiveness (set to 0.7) [-]

Required: True

Type:float
epsilon_radiator_test

Radiator effectiveness [-]

Required: True

Type:float
eta_tower_pump

Tower pump efficiency (set to 0.6) [-]

Required: True

Type:float
ew_dish_separation

East-West dish separation used in the simulation [m]

Required: True

Type:float
fan_control_signal

Fan control signal (set to 1, not used in this model) [-]

Required: True

Type:float
fan_speed1

Cooling system fan speed 1 [rpm]

Required: True

Type:float
fan_speed2

Cooling system fan speed 2 [rpm]

Required: True

Type:float
fan_speed3

Cooling system fan speed 3 [rpm]

Required: True

Type:float
ns_dish_separation

North-South dish separation used in the simulation [m]

Required: True

Type:float
pump_speed

Reference Condition Pump Speed [rpm]

Required: True

Type:float
system_availability

System availability (set to 1.0) [-]

Required: True

Type:float
test_P_fan

Reference Condition Cooling System Fan Power [W]

Required: True

Type:float
test_P_pump

Reference Condition Pump Parasitic Power [W]

Required: True

Type:float
test_T_fluid

Reference Condition Cooling Fluid Temperature [K]

Required: True

Type:float
test_V_dot_fluid

Reference Condition Cooling Fluid Volumetric Flow Rate [gpm]

Required: True

Type:float
test_cooling_fluid

Reference Condition Cooling Fluid [-]

Constraints: INTEGER

Required: True

Type:float
test_fan_cfm

Reference condition van volumentric flow rate [cfm]

Required: True

Type:float
test_fan_rho_air

Reference condition fan air density [kg/m^3]

Required: True

Type:float
test_fan_speed

Reference Condition Cooling System Fan Speed [rpm]

Required: True

Type:float
test_pump_speed

Reference Condition Pump Speed [rpm]

Required: True

Type:float
tower_m_dot_water

Tower cooling water flow rate (set to 134,000 kg/hr) [kg/s]

Required: True

Type:float
tower_m_dot_water_test

Test value for the cooling water flow rate (set to 134,000 kg/hr) [kg/s]

Required: True

Type:float
tower_mode

Cooling tower type (natural or forced draft) [-]

Required: True

Type:float
tower_pipe_material

Tower pipe material (1=plastic, 2=new cast iron, 3=riveted steel) [-]

Required: True

Type:float

AdjustmentFactors Group

class PySAM.Tcsdish.Tcsdish.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.Tcsdish.Tcsdish.Outputs
assign() → None

Assign attributes from dictionary

Outputs_vals = { var: val, ...}

export() → dict

Export attributes into dictionary

Collector_Losses

Collector loss total [kWt]

Type:sequence
P_SE_losses

Engine power loss [kWt]

Type:sequence
P_out_SE

Engine power output (gross) [kWe]

Type:sequence
P_out_rec

Receiver thermal power output [kWt]

Type:sequence
P_parasitic

Parasitic power [We]

Type:sequence
Phi_shade

Collector shading efficiency

Type:sequence
Power_in_collector

Collector thermal power incident [kWt]

Type:sequence
Power_in_rec

Receiver thermal power input [kWt]

Type:sequence
Power_out_col

Collector thermal power produced [kWt]

Type:sequence
Q_rec_losses

Receiver thermal power loss [kWt]

Type:sequence
T_compression

Engine compression temperature [K]

Type:sequence
T_heater_head_operate

Receiver temperature - head operating [K]

Type:sequence
T_tower_in

Cooling fluid temperature - cooler out/tower in [C]

Type:sequence
T_tower_out

Cooling fluid temperature - cooler in/tower out [C]

Type:sequence
annual_Collector_Losses

Total collector losses (Incident - P_out) [MWh]

Type:float
annual_P_out_SE

Stirling engine gross output [MWh]

Type:float
annual_P_out_rec

Receiver output power [MWh]

Type:float
annual_P_parasitic

Total parasitic power load [MWh]

Type:float
annual_Power_in_collector

Power incident on the collector [MWh]

Type:float
annual_Power_in_rec

Power entering the receiver from the collector [MWh]

Type:float
annual_Power_out_col

Total power from the collector dish [MWh]

Type:float
annual_Q_rec_losses

Receiver thermal losses [MWh]

Type:float
annual_energy

Annual Energy [kWh]

Type:float
beam

Resource Beam normal irradiance [W/m2]

Type:sequence
capacity_factor

Capacity factor [%]

Type:float
conversion_factor

Gross to Net Conversion Factor [%]

Type:float
engine_pressure

Engine pressure [Pa]

Type:sequence
eta_SE

Engine efficiency

Type:sequence
eta_collector

Collector efficiency

Type:sequence
eta_net

Net efficiency

Type:sequence
Type:System total
eta_rec

Receiver efficiency

Type:sequence
gen

System power generated [kW]

Type:sequence
hour

Resource Hour of Day

Type:sequence
hourly_Collector_Losses

Collector loss total [MWt]

Type:sequence
Type:System total
hourly_P_out_SE

Engine power output (gross) [MWe]

Type:sequence
Type:System total
hourly_P_out_rec

Receiver thermal power output [MWt]

Type:sequence
Type:System total
hourly_P_parasitic

Parasitic power [MWe]

Type:sequence
Type:System total
hourly_Power_in_collector

Collector thermal power incident [MWt]

Type:sequence
Type:System total
hourly_Power_in_rec

Receiver thermal power input [MWt]

Type:sequence
Type:System total
hourly_Power_out_col

Collector thermal power produced [MWt]

Type:sequence
Type:System total
hourly_Q_rec_losses

Receiver thermal loss [MWt]

Type:sequence
Type:System total
kwh_per_kw

First year kWh/kW [kWh/kW]

Type:float
month

Resource Month

Type:sequence
monthly_Collector_Losses

Total collector losses (Incident - P_out) [MWh]

Type:sequence
monthly_P_out_SE

Stirling engine gross output [MWh]

Type:sequence
monthly_P_out_rec

Receiver output power [MWh]

Type:sequence
monthly_P_parasitic

Total parasitic power load [MWh]

Type:sequence
monthly_Power_in_collector

Power incident on the collector [MWh]

Type:sequence
monthly_Power_in_rec

Power entering the receiver from the collector [MWh]

Type:sequence
monthly_Power_out_col

Total power from the collector dish [MWh]

Type:sequence
monthly_Q_rec_losses

Receiver thermal losses [MWh]

Type:sequence
monthly_energy

Monthly Energy [kWh]

Type:sequence
net_power

Engine power output (net) [kWe]

Type:sequence
pres

Resource Pressure [mbar]

Type:sequence
solazi

Resource Solar Azimuth [deg]

Type:sequence
solzen

Resource Solar Zenith [deg]

Type:sequence
tdry

Resource Dry bulb temperature [C]

Type:sequence
twet

Resource Wet bulb temperature [C]

Type:sequence
wspd

Resource Wind Speed [m/s]

Type:sequence