Abstract
Fundamental examinations of the absorption refrigeration cycle without a solution pump have been investigating. And in preveous study the prediction method for the cycle performance analysis of the absorption refrigeration cycle without a solution pump was proposed. The calculation model included the maximum pressure difference by capillary pumping, the pressure drop of vapor phase in the wick and the pressure drop of liquid phase in the wick. And the maximum heat rate of the generator was evaluated at the given heat transfer area. Then in this study, the change of surface tension along with the change of the solution concentration and temperature was also included in the modes.