Enclosure assembly for enhanced cooling of direct drive unit and related methods

A fluid pumping system for hydraulic fracturing operations, the fluid pumping system comprising:

• a power drive unit, comprising:
• a gearbox;
• a gas turbine engine cantilever mounted to the gearbox;
• and a driveshaft operably connected to the gearbox;
• a fluid pump operatively connected to the driveshaft;
• an enclosure assembly including an enclosure body at least partially defining an enclosure space to house at least a portion of the power drive unit, the enclosure body comprising:
• a floor;
• a plurality of side walls;
• wherein each of the side walls comprises a plurality of layers, and wherein at least one of the plurality of layers is configured to restrict sound transmission therethrough;
• wherein the plurality of layers includes:
• an inner metallic layer;
• an outer metallic layer;
• and a foam layer and a wool layer positioned between the inner metallic layer and the outer metallic layer;
• a roof;
• and a pair of doors hingably attached to a first side wall of the plurality of side walls;
• one or more fan assemblies configured to flow air from an external environment surrounding the enclosure body along an airflow path through the enclosure space;
• and a temperature sensor configured to detect a temperature of the enclosure space and configured to output a temperature signal.

A fluid pumping system for hydraulic fracturing operations, the fluid pumping system comprising:

• a power drive unit, comprising:
• a gearbox;
• a gas turbine engine cantilever mounted to the gearbox;
• and a driveshaft operably connected to the gearbox;
• a fluid pump operatively connected to the driveshaft;
• an enclosure assembly including an enclosure body at least partially defining an enclosure space to house at least a portion of the power drive unit, the enclosure body comprising:
• a floor;
• a plurality of side walls;
• wherein each of the side walls comprises a plurality of layers, and wherein at least one of the plurality of layers is configured to restrict sound transmission therethrough;
• wherein the plurality of layers includes:
• an inner metallic layer;
• an outer metallic layer;
• and a foam layer and a wool layer positioned between the inner metallic layer and the outer metallic layer;
• a roof;
• and a pair of doors hingably attached to a first side wall of the plurality of side walls;
• and one or more fan assemblies configured to flow air from an external environment surrounding the enclosure body along an airflow path through the enclosure space, wherein the power drive unit, the fluid pump, and the enclosure assembly are mounted on a trailer along a longitudinal axis of the driveshaft.