Behavior of a two-stage absorption heat transformer combining latent and sensible heat exchange modes

A two-stage absorption heat transformer (TAHT) and its improved version, the cycle incorpaorating latent heat and sensible heat modes, are investigated by emplying energy-utilization diagrams (EUDs). Utilizing the exhaust gas of a gas turbine as the heat source and employing the water/lithium bromide as the working fluid, it has been concluded that this is an effective way of decreasing the exergy loss by combining latent and sensible heat exchange modes. Furthermore, the temperature of the useful heat is increased. This analysis can provide a basis for synthesis and development of absorption heat transformer systems.