The Hygroscopic cycle for CSP

Influence of cooling temperature increase in a hygroscopic cycle on the performance of the cooling equipment

“…It is due to the concentration of hygroscopic compounds in the cooling reflux stream provided by the cooling system. Due to absorption process, the condensing temperature of the vapor in the steam absorber is greater than the saturation temperature of exhaust steam (Tc > Tv in Figure 3), for the same condensing pressure [44]. Vacuum pump extracts air and other non-condensing gases from the steam absorber.…”

Advantages of incorporating Hygroscopic Cycle Technology to a 12.5-MW biomass power plant

“…In this device, the condensing temperature is increased above the saturation temperature of the pure steam for a given pressure in the steam absorber. In essence, if Ta is the condensing temperature in the steam absorber, and Tv is the water saturation temperature at the steam absorber pressure (Pa), being Ta > Tv [36]. Ta value depends on the molality of the cooling reflux stream.…”

Experimental study on the influence of the saline concentration in the electrical performance of a Hygroscopic cycle

“…In figure 3, Tc denotes the condensing temperature of the vapor in the steam absorber and Tv designates the saturation temperature [48] of exhaust steam. In the steam absorber, complete condensation of the steam occurs by absorption, releasing the heat of dilution [49] that is defined as the heat exchanged with the medium when an additional amount of solvent is added to a solution.…”