Cooling

class impacthpc.src.Cooling(cooling_power: ReplicableValue | str, embodied_impacts: Impacts | None = None, allocation_method: AllocationMethod | None = None)

Bases: HasEmbodiedImpacts

Represents the cooling system and is used to compute its embodied impacts <TODO : REPLACE WITH ONTOLOGY OF EMBODIED IMPACTS>`_.

embodied_impacts

The embodied impacts of the cooling system. If the value is known, estimate_embodied_impacts() returns it, otherwise an estimation is done based on other attributes. Defaults to None.

Type:

Impacts | str | None, optional

cooling_power

The cooling power, in watts.

Type:

ReplicableValue | str

allocation_method

An Allocation Method used to attribute a part of the embodied impact of the cooling system to a specific job.

Type:

AllocationMethod

Methods Summary

embedded_impacts(job_duration)

Estimate the Embedded impacts of the cooling system for the job.

Methods Documentation

embedded_impacts(job_duration: ReplicableValue) → Impacts

Estimate the Embedded impacts of the cooling system for the job.

Internally uses estimate_embodied_impacts() and passes it the allocation_method with the job_duration.

Parameters:

job_duration (ReplicableValue) – The duration of the job we want to allocate the embodied impacts to.

Returns:

The Embedded impacts of the cooling system for the job.

Return type:

Impact

embedded_impacts(job_duration: ReplicableValue) → Impacts

Estimate the Embedded impacts of the cooling system for the job.

Internally uses estimate_embodied_impacts() and passes it the allocation_method with the job_duration.

Parameters:

job_duration (ReplicableValue) – The duration of the job we want to allocate the embodied impacts to.

Returns:

The Embedded impacts of the cooling system for the job.

Return type:

Impact

estimate_embodied_impacts() → Impacts

Estimate the embodied impacts of the cooling system.

If embodied_impacts is not None, this method only returns it.

The embodied impacts of the cooling system are reduced to the impact of the refrigeration unit.

Interpolation factors are defined for the different phases. The extrapolation factor for a refrigeration unit of X watts is a number close to 1, which, when multiplied by the reference impacts (defined in the config file under csv > cooling_impacts), gives the impact of a refrigeration unit of X watts. For our estimation, we interpolate between the two closest extrapolation factors (defined in the config file under csv > cooling_extrapolation_factors).

For example, if the cooling_power is 355 W, to compute the impact of the manufacturing phase, we will interpolate between the two closest extrapolation factors: for 346 W it’s 1.12, and for 380 W it’s 1.099. The interpolated factor is then multiplied by the reference impact (for the GWP impact, it’s 60.4 kg CO2eq) to give the impact of the 355 W refrigeration unit.

Returns:

The embodied impact of the cooling system.

Return type:

Impact