| With the improvement of human living standard, the demand of air quality people ask for is getting higher and higher. In the temperatures between 18℃and 23℃, and the relative humidity between 45% and 65%, people feel cozy, which lead to double missions to the air-conditioner in a wet and hot place, that is cooling and dehumidification. Traditional air-compress method could solve both problems at the same time. It cools the room air below the dew point at first, so it can decrease the water content of room air. And then air is heated to the ideal cozy temperature again. This method could dehumidify and cool the air to the cozy range well, but it wastes a lot of energy to cool room air below dew point and reheat it.Another method also could reach the ideal air condition, which is hybrid air-conditioner with liquid desiccant.From the result of public literature, all the hybrid air-compress systems with liquid desiccant ask for another assistant heater to regenerate the solution(liquid desiccant) so as to the bad performance of the whole system. In this paper, a new hybrid air-compress cooling system with liquid desiccant is presented. However, this system reduced the assistant heater, which only regenerated the liquid desiccant through the condenser. And a new kind of honeycomb paper was used in the packed towers. LiCl was chosen as the desiccant in the regeneration experiment and dehumidification experiment.Focusing on the regeneration experiment, tests as followed were carried out:1. Increase the height of packed material, study the regeneration performance. And when height reaches 20cm, the performance was the best.2. Change the MR(the solution flow was fixed at 78L/h, air flow was between 17.34 m~2/m~3 and 34.68 m~2/m~3).3. Different density of packed material effect on the regeneration performance.4. Solution at different temperature effect on the regeneration performance.Focusing the dehumidification performance, a series of tests just like before were carried out. And the regress formulas of dehumidification and Sh were shown in this thesis.At last, through optimizing the hybrid system, tests of the regeneration performance, dehumidification performance and COP were also carried out in this thesis. |
