System and embodiment for an energy-efficient and effective cloth dryer

A concept and a system embodiment for an energy-efficient and effective drying process that can be used in any applications including cloth dryer. The system's embodiment (FIGURE) which can be sized, and detail designed properly to be used in all residential, commercial, and industrial applications and comprises of:

• a) a stationary drum [1] with a grilled glass door [6] to operate the drying process on articles inside it using microwaves generated by a magnetron with an adjustable power, duty cycles, and duty ratio controlled through a digital controller (not shown);
• b) a set of nozzles [8] at the bottom of drum to blow hot compressed air underneath the articles laying on a grid [7] and to fly them in the drum space for an effective homogenous drying process. The nozzles' on/off states will be controlled by a digital controller (not shown) receiving feedback from several moisture sensors (not shown) within the drum space;
• c) a collecting duct [2] with a removable mesh filter and lint screen [3] at the top of drum to vacuum the vapor inside the drum and block articles' lint and fluff. The vapor is conducted to a drying and compressing process through another duct [1] and will be delivered to a distributing duct [10] for drying stage;
• d) a set of membrane dryers [12] working in parallel to receive the vapor and separate its moisture. Membrane dryers purge the moisture in liquid form using pre-heated make-up air received through the channel [10]. The membrane dryers are equipped with a built-in cup [13] to collect the purged liquid to be reused for pre-heating the make-up air;
• e) an air compressor [13] to receive the almost dried warm air from membrane output collector and to increase the air pressure for rising its temperature and condensing the remaining humidity. The compressor is controlled by a digital controller (not shown) to create an optimized pressure for the hot and dry air depending on the weight and dryness of articles in the stationary drum. The compressor further creates enough vacuum for the mobility of vapor from drum space to membrane dryers in a closed cycle and for the mobility of membrane pre-heated make-up air;
• f) a special three-layer high pressure tank for storing pressurized hot air to be reused by drum nozzles [8] through a distributing channel [9]. The outer layer container [16] of this tank is for storing warm liquid purged from membrane dryers and is connected to their cups through a pipe [14]. A special valve [18] drains the overflow liquid. The middle layer space [17] of this tank is a heat exchanger pre-heating the make-up air of membrane dryers and is connected to them through the air channel [11]. The inner layer container is for storing and pressurizing dried hot air. The condensed liquid built up at the bottom of inner layer container will be drained at the end of drying process through an electric valve [19];
• g) a container [20] to collect drained liquids and can be connected to a side washing machine for reusing the liquid or to a sewer system for discharging the liquid.