Which statement about lithium bromide absorption systems is incorrect?

In lithium bromide absorption systems, the role of the absorber is primarily to facilitate the absorption of water vapor by the lithium bromide solution. This process does occur at a lower pressure compared to the evaporator, which means the absorber itself does not increase the pressure in the evaporator. Instead, it helps to create a cycle where the refrigerant (water) evaporates at low pressure in the evaporator, absorbs heat, and then is subsequently absorbed by the lithium bromide solution in the absorber.

The other statements are accurate: the water vapor absorption does contribute to the overall pressure dynamics within the system, but it is not that the absorber increases the evaporator's pressure. The usual applications for these systems extend beyond just cooling; they can also provide heating through cogeneration systems. Additionally, the system does require heat input to regenerate the absorbent, allowing the cycle to continue. Hence, identifying that the absorber increases pressure in the evaporator as incorrect highlights the understanding of how the components interact in a lithium bromide absorption refrigeration cycle.