Heatpipe Tables

The Heatpipe model is a cost model that estimates the cost of Heat pipe microreactor. The model contains three main tables: account, cost element, and variable. The account table contains the main cost estimation for Heatpipe model. Most accounts are divided into three main cost categories: Factory Equipment Costs, Labor Costs, and Material Costs, but some accounts might only have one or two of these categories. The cost element table contains the cost element information for the Heatpipe model. Some cost element are calculated using algorithms, that need variables to calculate the cost. The variable table contains the variable information for the Heatpipe model. Each table is associated with a unique identifier, which is used to track and categorize costs. The tables are connected to each other through the different columns.

Note

The Heatpipe model only contains partial data for the account table, the total direct cost is calculated using COA 2C calculated direct cost and the total percentage of the known accounts.

Heatpipe Account Table

This table contains the account information for the Heat pipe microreactor model. Each entity in the account table is associated with a unique identifier, which is used to track and categorize costs. The table is organized into multiple levels, with each level representing a different component or subtask.

The table includes the following columns:

• ind: unique identifier for each account

• code_of_account: code of account

• account_description: description of the account

• total_cost: total cost of the account unit in dollars

• level: level of the account

• supaccount: superior account

• review_status: review status of the account, note that the default value should always be Unchanged

• prn: percentage of the account cost in the total direct cost

[Heatpipe Account Table]

ind	code_of_account	account_description	total_cost	level	supaccount	cost_elements	review_status	prn
1	211	Yardwork	2609431	2	21	211_fac,211_lab,211_mat	Unchanged	0.03396
2	212	Reactor containment	418694	2	21	212_fac,212_lab,212_mat	Unchanged	0.00545
3	213	Building and utilities	16301349	2	21	213_fac,213_lab,213_mat	Unchanged	0.21217
4	218T	Reactor startup facility	1027100	3	218	218T_fac,218T_lab,218T_mat	Unchanged	0.01337
5	221.12	Outer vessel	103946	3	221	221.12_fac,221.12_lab,221.12_mat	Unchanged	0.00135
6	221.13	Inner vessel	318739	3	221	221.13_fac,221.13_lab,221.13_mat	Unchanged	0.00415
7	221.21	Reactivity control system	9043404	3	221	221.21_fac,221.21_lab,221.21_mat	Unchanged	0.1177
8	221.22	Reflector	3277300	3	221	221.22_fac,221.22_lab,221.22_mat	Unchanged	0.04266
9	221.23	Shield	3902600	3	221	221.23_fac,221.23_lab,221.23_mat	Unchanged	0.05079
10	221.24	Moderator	0	3	221	221.24_fac,221.24_lab,221.24_mat	Unchanged	0
11	222.12	Reactor coolant system (heat pipes)	11340000	3	222	222.12_fac,222.12_lab,222.12_mat	Unchanged	0.1476
12	222.13	Heat exchangers	1254784	3	222	222.13_fac,222.13_lab,222.13_mat	Unchanged	0.01633
13	227	Instrumentation & control	8500000	2	22	227_fac,227_lab,227_mat	Unchanged	0.11063
14	231	Turbine and electric systems	18734511	2	23	231_fac,231_lab,231_mat	Unchanged	0.24384
15	2C	Calculated DIRECT COST	76831858	0		2c_fac,2c_lab,2c_mat	Unchanged	1
16	2	TOTAL DIRECT COST	76831858	0			Unchanged	1

Heatpipe Cost Element Table

This table contains the cost element information for the Heat pipe microreactor model. Most entities in the account table are divided into 3 main cost categories: Factory Equipment Costs, Labor Costs, and Material Costs. Some accounts might only have one or two of these categories. The cost element table is associated with a unique identifier, which is used to track and categorize costs. The table is connected to the account table through the account column, which links each cost element to a specific account. It is also connected to the variable table through the variables column, and the algorithm table through the alg_name column.

The table includes the following columns:

• ind: unique identifier for each cost element

• cost_element: cost element name

• cost_2017: cost of the element in 2017 dollars

• sup_cost_ele: superior cost element

• alg_name: algorithm name

• fun_unit: algorithm function output unit

• variables: variables used in the algorithm

• account: account associated with the cost element

• algno: algorithm number in the algorithm table

• updated: updated status of the cost element, 0 for unchanged and 1 for updated, note that the default value should always be 0

[Heatpipe Cost Element Table]

ind	cost_element	cost_2017	sup_cost_ele	alg_name	fun_unit	variables	account	algno	updated
1	211_lab	2609431	21_lab	Yardwork_cost	million	land_surface_area	211	49	0
2	212_mat	10043	21_mat	Reactor_containment_mat_cost	million	containment_subVolume	212	50	0
3	212_lab	408651	21_lab	Reactor_containment_lab_cost	million	Containment_hole_volume	212	51	0
4	213_mat	6458349	21_mat	Building_and_utilities_mat_cost	million	Turbine_building_surface_area	213	52	0
5	213_lab	9843000	21_lab	Building_and_utilities_lab_cost	million	Distance_to_utilities, Number_of_shipping_containers	213	53	0
6	218T_fac	1027100	21_fac	Reactor_startup_facility_cost	million	Battery_capacity_required	218T	54	0
7	221.12_mat	99430	22_mat	Outer_vessel_mat_cost	million	primary_outer_vessel_SS_mass	221.12	55	0
8	221.12_lab	4516	22_lab	Outer_vessel_lab_cost	million	primary_outer_vessel_SS_mass	221.12	56	0
9	221.13_mat	318739	22_mat	Inner_vessel_cost	million	primary_inner_vessel_SS_mass	221.13	57	0
10	221.21_mat	9043404	22_mat	Reactivity_control_system_cost	million	B4C_total_neutron_poison_mass_Kg, Number_of_control_rod_drums, number_of_emergency_control_rods	221.21	58	0
11	221.22_mat	3277300	22_mat	Reflector_cost	million	stainless_steel_316_reflector_mass, Al2O3_reflector_mass, BeO_reflector_mass	221.22	59	0
12	221.23_mat	3902600	22_mat	Shield_cost	million	shield_B4C_mass	221.23	60	0
13	221.24_mat	0	22_mat	Moderator_cost	million	moderator_ZrH_mass	221.24	61	0
14	222.12_mat	11340000	22_mat	cooling_heat_pipes_cost	million	number_of_core_cooling_heat_pipes, mass_production_cost_reduction_factor	222.12	62	0
15	222.13_mat	100000	22_mat	heat_exchangers_mat_cost	million	number_of_heat_exchangers	222.13	63	0
16	222.13_lab	1060000	22_lab	heat_exchangers_lab_cost	million	number_of_heat_exchangers	222.13	64	0
17	222.13_fac	94784	22_fac	heat_exchangers_fac_cost	million	number_of_heat_exchangers, heat_exchangers_mass	222.13	65	0
18	227_fac	8500000	22_fac	instrumentation_contorl_cost	million	number_of_IO_sensors	227	66	0
19	231_fac	18734511	23_fac	turb_and_elec_sys_cost	million	mwth, mwe	231	67	0
20	2c_mat	34549864		NO_ALG	million	N/A	2	N/A	0
21	2c_lab	13925597		NO_ALG	million	N/A	2	N/A	0
22	2c_fac	28356395		NO_ALG	million	N/A	2	N/A	0

Heatpipe Variable Table

This table contains the variable information for the Heat pipe microreactor model. All variables are needed to calculate the cost of the cost element or a super variable. Some variables are connected to the algorithm table through the var_alg column, which links each variable to a specific algorithm. The table is also connected to itself through the v_linked and var_needed column, which links each variable to a superior variable and the variables needed to calculate it.

The table includes the following columns:

• ind: unique identifier for each variable

• var_name: variable name

• var_description: description of the variable

• var_value: value of the variable

• var_unit: unit of the variable

• var_alg: algorithm associated with the variable if any

• var_need: variables needed to calculate the variable if any

• v_linked: superior variable if any

• user_input: user input status of the variable, 0 for not user input and 1 for user input, note that the default value should always be 0

[Heatpipe Variable Table]

ind	var_name	var_description	var_value	var_unit	var_alg	var_need	v_linked	user_input
1	land_surface_area	land surface area	32000	squareMeter	NULL	NULL	NULL	0
2	containment_subVolume	containment subVolume = ISO width* ISO length *ISO subheight	76.8	cubeMeter	NULL	NULL	NULL	0
3	Containment_hole_volume	Containment hole volume = (2 concrete thickness * ISO width) * (2 concrete thickness * ISO length) * (2 concrete thickness * ISO sub_height) - ISO width ISO length ISO subheight	446.3	cubeMeter	NULL	NULL	NULL	0
4	Turbine_building_surface_area	Turbine building surface area	1000	squareMeter	NULL	NULL	NULL	0
5	Distance_to_utilities	Distance to utilities	1000	m	NULL	NULL	NULL	0
6	Number_of_shipping_containers	Number of shipping containers	0	1	NULL	NULL	NULL	0
7	Battery_capacity_required	Battery capacity required	135	kW	NULL	NULL	NULL	0
8	primary_outer_vessel_SS_mass	primary outer vessel SS mass	0.3	ton	NULL	NULL	NULL	0
9	primary_inner_vessel_SS_mass	primary inner vessel SS mass	1	ton	NULL	NULL	NULL	0
10	B4C_total_neutron_poison_mass_Kg	B4C total neutron poison mass (Kg)	529.9	kg	NULL	NULL	NULL	0
11	Number_of_control_rod_drums	Number of control rod drums	12	1	NULL	NULL	NULL	0
12	number_of_emergency_control_rods	number of emergency control rods	2	1	NULL	NULL	NULL	0
13	stainless_steel_316_reflector_mass	stainless steel 316 reflector mass	2	ton	NULL	NULL	NULL	0
14	Al2O3_reflector_mass	Al2O3 reflector mass	7.9	ton	NULL	NULL	NULL	0
15	BeO_reflector_mass	BeO reflector mass	1.7	ton	NULL	NULL	NULL	0
16	shield_B4C_mass	shield B4C mass	4108.5	kg	NULL	NULL	NULL	0
17	moderator_ZrH_mass	moderator ZrH mass	0	ton	NULL	NULL	NULL	0
18	mass_production_cost_reduction_factor	mass production cost reduction factor	0	1	NULL	NULL	NULL	0
19	number_of_core_cooling_heat_pipes	number of core cooling heat pipes	1134	1	NULL	NULL	NULL	0
20	number_of_heat_exchangers	number of heat exchangers	2	1	NULL	NULL	NULL	0
21	heat_exchangers_mass	heat exchangers mass	0.4	ton	NULL	NULL	NULL	0
22	number_of_IO_sensors	number of IO sensors	1000	1	NULL	NULL	NULL	0
23	mwth	user_input mwth	5	MW	NULL	NULL	NULL	0
24	mwe	user_input MWE	1.8	MW	NULL	NULL	NULL	0