Two configurations of a thermally activated heat pump (TAHP) with a desiccant wheel for air drying are analyzed and compared to two conventional air conditioners for summer space cooling. Annual energy performance estimates are made for eight U.S. locations using historical data from the summer of 1986. Two system operational modes are considered: (1) ventilation mode and (2) recirculation mode. When the system operates in the ventilation mode – which pressurizes the house – the cooling load is reduced. The energy trade-offs and annual operating costs for each system in each of the eight locations are estimated.

Units: Dual