A discrete zone energy transmission system is provided. The system includes an object treatment area, an array of energy transmission elements configured to direct energy toward predetermined zones in the treatment area, a sensor configured to detect a presence and a location of an object in the treatment area, and a controller in communication with the array of energy transmission elements and the sensor. The controller is configured to receive presence and location data from the sensor, assign the data to the predetermined zones, and control an operation of the array of energy transmission elements to selectively radiate energy from the array of energy transmission elements only toward a select number of zones in the object treatment area based on the presence and location data, thereby selectively radiating the energy from the array of energy transmission elements only toward the object in the treatment area.

A dishwasher includes a regeneration heater and a washing water heater that are controlled to operate simultaneously so that an operation period of the regeneration heater and an operation period of the washing water heater at least partially overlap each other, thereby heating the washing water and regenerating a moisture absorbent effectively and in a short time even in a washing course with a short washing cycle time.

A personal dishwasher washes and dries a dish that is manually or mechanically moved through a dishwasher chamber or is manually placed in and manually removed from the chamber. Pressurized water, possibly containing soap, wetting agent, etc., may be added to the wash water. Steam may be used to for cleaning and/or disinfecting. Ultraviolet light may be used for disinfecting. The dishwasher chamber may be enlarged to pass larger dishes, bowls, glassware, etc. for washing. A method of washing dishes, comprising inserting a dish manually into a dishwasher, passing the dish through the dishwasher, and withdrawing the dish. A method of washing a dish, comprising inserting a single dish into a dishwasher, directing fluid under pressure at the dish, directing air flow at the dish, and withdrawing the dish.

Disclosed a control method of a dishwasher comprising a main-washing cycle for washing one or more washing objects which are held in a tub; a rinsing cycle for rinsing the washing objects washed in the main-washing cycle by injecting wash water; a normal drying cycle for drying the washing objects rinsed in the rinsing cycle, wherein the main-washing cycle comprises a pre-steam water supply step for supplying steam water to a sump so as to supply steam to the tub; a pre-steam supply step for generating steam by heating a heater and supplying the steam to the tub; a main-wash water supply step for supplying wash water for washing to the sump, without draining the steam water supplied to the sump; a main-washing step for washing the washing objects by circulating the supplied wash water; and a main-wash water drainage step for draining the wash water.

Disclosed a control method of a dishwasher comprising a main-washing cycle for washing one or more washing objects which are held in a tub; a rinsing cycle for rinsing the washing objects washed in the main-washing cycle by injecting wash water; a normal drying cycle for drying the washing objects rinsed in the rinsing cycle, wherein the main-washing cycle comprises a pre-steam water supply step for supplying steam water to a sump so as to supply steam to the tub; a pre-steam supply step for generating steam by heating a heater and supplying the steam to the tub; a main-wash water supply step for supplying wash water for washing to the sump, without draining the steam water supplied to the sump; a main-washing step for washing the washing objects by circulating the supplied wash water; and a main-wash water drainage step for draining the wash water.

A discrete zone energy transmission system is provided. The system includes an object treatment area, an array of energy transmission elements configured to direct energy toward predetermined zones in the treatment area, a sensor configured to detect a presence and a location of an object in the treatment area, and a controller in communication with the array of energy transmission elements and the sensor. The controller is configured to receive presence and location data from the sensor, assign the data to the predetermined zones, and control an operation of the array of energy transmission elements to selectively radiate energy from the array of energy transmission elements only toward a select number of zones in the object treatment area based on the presence and location data, thereby selectively radiating the energy from the array of energy transmission elements only toward the object in the treatment area.

A dishwasher with a dry mode having a wash compartment and a heating unit. The heating unit is used to directly heat fan blades of a fan from outside the wash compartment. The heating unit further includes a fan motor, multiple fan blades, and a wireless power source. The fan motor drives the fan blades. The fan blades are made up of a ferromagnetic material which are fluidly coupled with an atmosphere of the wash compartment. The wireless power source wirelessly induces heating of the ferromagnetic material while the fan blades circulate the atmosphere, and the ferromagnetic material heats the atmosphere of the wash compartment.

A dishwasher includes a body including an opening through which an object to be washed is loaded, a door to be connected with one side of the body and while the door is connected to the one side of the body, the door selectively opens and closes the body, a driving device that drives the door to be selectively opened on the body, a memory to store at least one instruction, and at least one processor configured to execute the at least one instruction, and control the driving device such that the door is opened in relation to a drying cycle, wherein the at least one processor is configured to obtain an operation state of a heating device around the dishwasher, and based on opening of the door being necessary, adjust a time point of opening the door in relation to the drying cycle based on the obtained operation state.