A galley system for cooling a plurality of demand galley carts comprising: a galley defining a cart compartment; a chiller galley cart; and an airflow supply and return system arranged within the galley wherein the cart compartment is configured to store the plurality of demand galley carts and the chiller galley cart; wherein the airflow supply and return system includes: a cooling air supply duct configured to be in flow communication with the plurality of demand galley carts and the chiller galley cart; an air return duct configured to be in flow communication with the plurality of galley carts; a plurality of demand supply ports in flow communication with the cooling air supply duct, wherein the demand supply ports are configured for direct coupling to demand supply valves of the demand galley carts; a plurality of demand return ports in flow communication with the air return duct, wherein the demand return ports are configured for direct coupling to demand return valves of the demand galley carts; a chiller supply port in flow communication with the cooling air supply duct, the chiller supply port configured to directly couple to a supply valve of the chiller galley cart) to channel cooled air from a chiller positioned in the chiller galley cart into the cooling air supply duct; and a chiller return port in flow communication with the air return duct, the chiller return port configured to directly couple to a return valve of the chiller galley cart to channel return air from the air return duct into the chiller positioned in the chiller galley cart. a galley defining a cart compartment; a chiller galley cart; and an airflow supply and return system arranged within the galley wherein the cart compartment is configured to store the plurality of demand galley carts and the chiller galley cart; wherein the airflow supply and return system includes: a cooling air supply duct configured to be in flow communication with the plurality of demand galley carts and the chiller galley cart; an air return duct configured to be in flow communication with the plurality of galley carts; a plurality of demand supply ports in flow communication with the cooling air supply duct, wherein the demand supply ports are configured for direct coupling to demand supply valves of the demand galley carts; a plurality of demand return ports in flow communication with the air return duct, wherein the demand return ports are configured for direct coupling to demand return valves of the demand galley carts; a chiller supply port in flow communication with the cooling air supply duct, the chiller supply port configured to directly couple to a supply valve of the chiller galley cart) to channel cooled air from a chiller positioned in the chiller galley cart into the cooling air supply duct; and a cooling air supply duct configured to be in flow communication with the plurality of demand galley carts and the chiller galley cart; an air return duct configured to be in flow communication with the plurality of galley carts; a plurality of demand supply ports in flow communication with the cooling air supply duct, wherein the demand supply ports are configured for direct coupling to demand supply valves of the demand galley carts; a plurality of demand return ports in flow communication with the air return duct, wherein the demand return ports are configured for direct coupling to demand return valves of the demand galley carts; a chiller supply port in flow communication with the cooling air supply duct, the chiller supply port configured to directly couple to a supply valve of the chiller galley cart) to channel cooled air from a chiller positioned in the chiller galley cart into the cooling air supply duct; and a chiller return port in flow communication with the air return duct, the chiller return port configured to directly couple to a return valve of the chiller galley cart to channel return air from the air return duct into the chiller positioned in the chiller galley cart.