Abstract: An accumulator distillation insert is provided for allowing the composition f a zeotropic refrigerant to be adjusted based upon a building heat load. The accumulator distillation insert comprises an accumulator, the accumulator having a two-phase input and a vapor output, the accumulator having a refrigerant mixture, in liquid form, disposed at a bottom of the accumulator; an immersion heater is provided in communication with the refrigerant mixture, in liquid form; and a distillation column is disposed in the accumulator, the distillation column is maintained above the refrigerant mixture in liquid form, the distillation column is provided for changing the chemical composition of the refrigerant mixture by decreasing the amount of volatile components in the refrigerant mixture, stored in the accumulator and thereby increasing the capacity of the heat pump system.

Abstract: An aerodynamic golf club head is provided for increasing the speed of the head during a swing. The head comprises a head body having a face side for hitting the golf ball, a back side at an opposite side of the face side, a toe side connecting the face side to the back side, a heel side at an opposite side of the toe side, and an outer surface extending substantially between the face side and back side and formed by a sole side and a top surface. A substantially straight through hole formed in the head body is provided for allowing air to pass therethrough. The through hole has a first opening which opens in the sole side adjacent the striking face side and a second opening which opens in the top surface adjacent the back side.