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Cal STAR — firmware, DAQ server, and engine design
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test_wall.TestCapacity Class Reference

Public Member Functions

None test_matches_nist_values (self, float temperature, float expected)
None test_cold_metal_holds_far_less (self)
None test_rises_monotonically (self)
None test_clamped_outside_the_table (self)
None test_capacity_scales_with_mass (self)

Detailed Description

Stainless holds a fraction of its room-temperature heat when it is cold.

This is the whole reason a LOX line and a pressurant line cannot share a
number. 316 at 77 K holds about 190 J/(kg.K) against 500 at room
temperature -- a factor of 2.6 -- so a model with one constant cp is wrong
by that factor on exactly the lines where the metal is coldest.

Definition at line 37 of file test_wall.py.

Member Function Documentation

◆ test_capacity_scales_with_mass()

None test_wall.TestCapacity.test_capacity_scales_with_mass ( self)

Definition at line 68 of file test_wall.py.

References test_wall.a_line().

◆ test_clamped_outside_the_table()

None test_wall.TestCapacity.test_clamped_outside_the_table ( self)
Beyond the table it holds the end value rather than extrapolating a
piecewise fit into a negative heat capacity.

Definition at line 62 of file test_wall.py.

◆ test_cold_metal_holds_far_less()

None test_wall.TestCapacity.test_cold_metal_holds_far_less ( self)

Definition at line 53 of file test_wall.py.

◆ test_matches_nist_values()

None test_wall.TestCapacity.test_matches_nist_values ( self,
float temperature,
float expected )

Definition at line 50 of file test_wall.py.

◆ test_rises_monotonically()

None test_wall.TestCapacity.test_rises_monotonically ( self)

Definition at line 57 of file test_wall.py.


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