What happens when the expansion valve is opened in an absorption system?

When the expansion valve is opened in an absorption system, it allows the refrigerant to expand, which reduces its pressure and temperature. This decrease in temperature means that the refrigerant can absorb more heat from the environment, which in turn allows the system to better meet the cooling load requirements. Essentially, as the refrigerant enters the evaporator, it vaporizes and absorbs heat, resulting in an effective cooling process. Therefore, the cooling load experienced by the system decreases, enabling it to operate more efficiently in cooling applications.

In contrast, an increase in the cooling load would occur if the system were unable to maintain efficient refrigerant flow or heat absorption. An increase in temperature or pressure would not occur due to the expansion valve opening, as that action is specifically designed to lower those parameters in the cooling cycle, allowing for effective absorption and heat exchange.