Transport refrigeration system with CO2 scrubber

A transport unit comprising:

• an enclosed space for storing produce;
• a ventilation pathway having an inlet and an outlet each connected to the enclosed space of the transport unit, the ventilation pathway configured to direct air to flow from the enclosed space into the ventilation pathway via the inlet and out of the ventilation pathway through the outlet;
• and
• a transport refrigeration system configured to condition the enclosed space, the transport refrigeration system including:
• a refrigerant circuit including a compressor, a condenser, an expander, and an evaporator fluidly connected, the evaporator disposed in the ventilation pathway and configured to cool the air flowing through the ventilation pathway, and
• a CO2 scrubber disposed in the ventilation pathway downstream of the evaporator, the CO2 scrubber containing a metal organic framework (MOF) configured to adsorb CO2, wherein the CO2 scrubber is one or more of configured to be interchangeable and configured to adjust an amount of the CO2 absorbed by the MOF by adjusting an exposure of the MOF to the air, the CO2 scrubber configured to have:
• an adsorption mode that directs the air in the ventilation pathway to flow over the MOF, the MOF adsorbing CO2 from the air, and
• a regeneration mode that directs ambient air to flow over the MOF, the CO2 adsorbed in the MOF being desorbed into the ambient air.

A method of conditioning an enclosed space of a transport unit, the enclosed space for storing produce, the method comprising:

• operating a transport refrigeration system (TRS) in a first mode, the TRS including a refrigerant circuit including a compressor, a condenser, an expander, and an evaporator fluidly connected, and a CO2 scrubber containing a metal organic framework (MOF) configured to adsorb CO2, wherein the CO2 scrubber is one or more of configured to be interchangeable and configured to adjust an amount of the CO2 absorbed by the MOF by adjusting an exposure of the MOF to air, wherein the operating of the TRS in the first mode includes:
• directing the air from the enclosed space through a ventilation pathway,
• cooling, with the evaporator, the air flowing through the ventilation pathway, and
• adsorbing, by the MOF of the CO2 scrubber, CO2 from the air cooled by the evaporator;
• and
• operating the TRS in a second mode, which includes:
• directing ambient air through the CO2 scrubber, and
• regenerating, with the ambient air, the MOF of the CO2 scrubber,
• wherein the CO2 adsorbed the MOF in the first mode is released into the ambient air in the second mode.