Modulating AHU VS RAM air cooling, based on vehicular velocity
A velocity cooled (VC) mobile data center (MDC) includes a volumetric container having an air intake opening providing an air intake path for exterior air to ingress into the container at a high velocity to provide a flow of cooling air that cools the heat generating IT equipment operating within the VC MDC while the MDC is mobile. An air intake damper is positioned within the air intake opening and can be selectively positioned between a fully opened position to a fully closed position. The VC MDC includes an air handling unit (AHU) configurable to operate in a standby mode or an active mode, ranging from providing minimal airflow to providing maximum airflow. The level of operation of the IT equipment and the amount of cooling provided by the AHU is controlled, based, in part, on a velocity of the VC MDC and resulting amount of cooling air being ingested.
1. A velocity cooled (VC) mobile data center (MDC) comprising:
a volumetric container having a plurality of exterior walls, with a first aft-facing wall and at least one second side or rear facing wall, the container configured with an information technology (IT) compartment and designed for placement on a trailer capable of being moved in at least an aft-facing direction at a velocity that facilitates cooling air flow through the IT compartment;
at least one heat generating information technology (IT) equipment positioned within the IT compartment, the IT equipment comprising at least one IHS;
an air intake opening placed in the aft-facing wall and which provides an air intake path for exterior air to ingress into the container at a high velocity to provide a flow of cooling air that cools the at least one heat generating IT equipment while the trailer is moving in the aft direction;
an air intake damper positioned within the air intake opening and capable of being selectively positioned in one of a plurality of air intake positions, ranging from a fully open position to a fully closed position;
at least one air handling unit (AHU) located within a second compartment of the container, the at least one AHU being configurable to selectively operate in one of a standby mode and an active mode, the active mode ranging from a first active mode providing minimal airflow to a second active mode providing a maximum airflow, the AHU selected to operate in the active mode based on an amount of cooling air being ingested at the air intake opening; and
a management IHS that controls the operation of the IT equipment and the at least one AHU based in part on a velocity of the VC MDC.
2. The VC MDC of claim 1 , wherein the at least one AHU, when in an active mode, operationally pulls air from a front section of the container to a rear section of the container, causing ingestion of cooling air and directional movement of the ingested cooling air over the at least one heat generating IT equipment to convectionally remove heat generated by operation of the at least one heat generating IT equipment.
3. The VC MDC of claim 1 , further comprising:
an actuator connected to the air intake damper and which enables positioning of the air intake damper into one of the plurality of air intake positions; and
a controller that is communicatively coupled to the actuator and which provides a trigger signal to the actuator to direct the actuator to place the air intake damper into a specific air intake position.
4. The VC MDC of claim 1 , further comprising:
at least one air outflow opening having an air outflow damper and positioned in one of the walls of the volumetric container, the at least one air outflow opening positioned to enable the flow of cooling air to exit the container as exhaust IT air after the cooling air flows over and convectionally absorbs heat from the at least one IT equipment;
a second actuator connected to the air outflow damper and which enables positioning of the at least one air outflow damper into one of a plurality of air outflow positions; and
a controller that is communicatively coupled to the second actuator and which provides a trigger signal to the second actuator to direct the second actuator to place the air outflow damper into a specific air outflow position.
5. The VC MDC of claim 3 , further comprising:
at least one sensor communicatively coupled to the controller and which senses a respective at least one environmental or ambient condition;
wherein the controller receives a value of the respective at least one environmental or ambient condition and selects the specific air intake position of the air intake damper based on a received value from the at least one sensor.
6. The VC MDC of claim 5 , wherein the at least one sensor comprises at least one of:
a velocity sensor that detects the velocity of at least one of: (a) a flow of ambient air moving from the outside into the interior of the container as ram air to provide the cooling air flow for the heat-generating IT equipment; and (b) a movement of the trailer on which the container is affixed for transportation;
a temperature sensor that detects the temperature of at least one of: (a) the IT equipment; (b) the ingested intake air; (c) the outside air; (d) the IT compartment;
a humidity sensor that senses a humidity level in at least one of the outside air, the intake air, the IT compartment;
a chemical sensor which monitors for detection of harmful chemicals in a surrounding environment or ambient air, wherein the VCCS controller responds to detection of harmful chemicals by triggering the actuator to close the air intake damper; and
an available power sensor.
7. The VC MDC of claim 6 , wherein the management IHS responds to detection of a condition that requires use of the AHU to provide cooling air flow by activating the AHU to begin circulating cooling air within the container.
8. The VC MDC of claim 7 , wherein the management IHS further responds to detection of a condition that indicates the VC MDC should operate in a closed mode by triggering the actuator to close the air intake damper.