A refrigerator includes an evaporator arranged in a heat exchange chamber and having refrigerant pipes through which refrigerant flows and fins configured to guide heat exchange between the refrigerant and cold air, wherein the evaporator includes a first and a second side spaced apart from each other, and the fins of the evaporator guide flow of air such that the cold air introduce into the first and second sides is combined with each other in the space between the first and second sides.

A defrosting apparatus comprises a heater case comprising a heat pipe seating part formed to extend from one surface thereof in a recessed shape and a heater receiving part formed to extend to be parallel with the heat pipe seating part. The defrosting apparatus also includes a heater which is mounted in the heater receiving part so as to emit heat when power is applied thereto, a heat pipe which has a flow path through which a working fluid filled therein flows, which has a part seated on the heat pipe seating part, and which is disposed to be adjacent to a cooling pipe of an evaporator such that heat is radiated to the cooling pipe of the evaporator by means of the working fluid at a high temperature which is heated by the heater and then is transferred, and a holder which is detachably coupled to the heater case so as to cover the heat pipe seated on the heat pipe seating part.

The present invention provides a method for controlling a refrigerator comprising: a step for determining whether or not a defrosting initiation condition is satisfied with respect to an evaporator; a step for, if the defrosting initiation condition is satisfied, detecting a pressure differential by means of one differential pressure sensor for measuring the pressure differential between a first through hole, which is positioned between the evaporator and an inlet port having air flowing in from a storage chamber, and a second through hole which is positioned between the evaporator and a discharge port having air discharged to the storage chamber; and a defrosting step for variably defrosting in accordance with the measured pressure differential.

A transport refrigeration unit includes a combustion engine system having a turbo-charger constructed and arranged to receive air in a cold state and expel the air in a compressed hot state, an evaporator, and a defrost heat exchanger constructed and arranged to receive the air in the compressed hot state and expel the air in a compressed cooled state for defrosting the evaporator. In operation, the unit may be capable of controlling a defrost temperature and/or controlling the temperature of the air entering a combustion engine of the engine system for combustion by controlling the volume of air flow between the defrost heat exchanger and a charge air cooler of the engine system.

ADAPTIVE CONTROL PROCEDURE FOR REFRIGERATION SYSTEMS which comprises the detection of the frost level in the evaporator by means of a calculation method of NTU rate, allowing to define: the most suitable defrosting time, the energization of the drainage resistors and the adaptive management of the evaporator fan combining different operating modes. An ice-free mode which uses only the cooling capacity of the refrigerant, and different modes with ice which benefits from the latent heat stored in the ice to produce energy savings, depending on the level of frost in the evaporator. For calculating the NTU rate, it uses the evaporator as a reference when it is dry at the beginning, and when the cooling system is in operation, it calculates the NTU rate with a variable frequency operating mode depending on the evaporator performance or level of ice and its comparison with the cited reference.

A household refrigeration appliance has a thermally-insulated body with an interior container that delimits a coolable interior space, a refrigeration circuit for cooling the coolable interior space and at least one fan. During the proper operation of the household refrigeration appliance, the fan is operated in a closed loop speed-controlled manner according to an at least indirectly specified desired rotational speed of the fan. During an inspection mode, the fan is operated without closed loop speed control, the actual rotational speed of the fan is ascertained and the actual rotational speed is evaluated in order to detect an abnormal operating state of the fan.

A no-frost refrigeration appliance has an interior which is divided by a partition into an evaporator chamber and a storage chamber. The evaporator chamber accommodates an evaporator and a defrost heater. The storage chamber is cooled by the evaporator chamber. The partition and the evaporator are mutually independently attached to walls of the interior. The defrost heater is not connected to the evaporator and is fastened to the partition.

A method of reducing moisture content of a cooling compartment includes increasing a temperature of the cooling compartment to a minimum temperature level, decreasing the temperature of the cooling compartment to a maximum temperature level, and draining any condensed moisture from the cooling compartment.

A system for reducing moisture content of a cooling compartment includes a coil assembly configured to increase a temperature of the cooling compartment to a minimum temperature level and decrease the temperature of the cooling compartment to a maximum temperature level, and a drain for draining any condensed moisture from the cooling compartment.

A refrigeration cycle apparatus includes a refrigerant circuit, a fan configured to send air to a heat exchanger, and a controller. The controller is configured to switch among a first operation, a second operation, and a third operation. In the first operation, the heat exchanger is caused to act as an evaporator. In the second operation, the heat exchanger is caused to act as a radiator to defrost the heat exchanger. In the third operation that is performed after the second operation, a compressor is stopped and the fan is operated at a constant rotational speed. The controller is configured to finish the third operation and start the first operation when a physical value positively correlated with electric power supplied to the fan falls to or below a threshold value during the third operation.

The resent invention provides a refrigerator comprising: a cabinet having a storage chamber; a door for opening and closing the storage chamber; a case having a discharge port through which air is discharged to the storage chamber; an evaporator provided inside the case and for supplying cold air by means of heat exchange with air; a fan installed on the discharge port and for generating the airflow discharging to the storage chamber the air which has been heat exchanged in the evaporator; and a differential pressure sensor having a first pipe, of which one end is positioned on a part where the air is withdrawn to the fan, and a second pipe of which one end is positioned on a part where the air is discharged from the fan.