Abstract: A top (119) is adapted to match and close from above a cabinet (110) of a laundry drying appliance (100). The top is formed as a ready-to-mount part ready to be mounted to the cabinet and forms a moisture condensing module for dehydrating drying air used to dry laundry within a drying drum of the laundry drying appliance. The top has a drying air inlet (510), a drying air outlet (515), fluid passageways defined thereinside from said drying air inlet to said drying air outlet for the passage of the drying air to be dehydrated, and moisture condensing means arranged inside the fluid passageways.

Abstract: An apparatus for drying wood veneer includes an elongate drying chamber including a conveyor for conveying material to be dried from an input end to an output end; and a cooling section for cooling veneer leaving the output end of the drying chamber, the cooling section including a pressure controller for maintaining a pressure in the cooling section that is slightly higher than pressure in the drying chamber while maintaining a near-zero pressure differential between the drying chamber and the cooling section.

Abstract: A laundry drying appliance (100) includes a cabinet (110) having a top (119), a rotating drum (105) accommodated within a tub (303) housed in the cabinet, and a laundry drying air circulation system for circulating drying air. The drying air circulation system includes a drying air return duct (305) through which drying air coming from drum flows. The drying air return duct has an outlet (310), and a drying air delivery duct (205,215) through which the drying air is sent back to the drum. The drying air delivery duct has an inlet (210). The top forms a ready-to-mount moisture condensing module ready to be mounted to the cabinet for dehydrating drying air used to dry laundry within the drying drum of the laundry drying appliance.

Abstract: A dew prevention apparatus is provided. The apparatus includes a dewing prevention structure for a substrate accommodated in a housing. The housing has an opening allowing an inflow of outer air and the dewing prevention structure is configured to suppress dew condensation on the substrate. The dew prevention structure includes a heat conductive member provided inside the housing wherein the heat conductive member contacts each of a predetermined heat source inside the housing and an area of the substrate near the opening.

Abstract: Provided is a substrate processing method that prevents generation of watermarks on a substrate and can be performed at a low cost. The method controls the ambient humidity around the substrate depending on the kind of the chemical liquid, when the substrate is processed with the chemical liquid. The control of the humidity is performed at least in a drying step that dries the substrate W. In one embodiment, the ambient humidity around the substrate is controlled when a fluid containing IPA as a drying fluid is supplied to the substrate W after processing the substrate W with the chemical liquid.

Abstract: Disclosed is a method for smoothing the surface of an object built from a polymeric or wax material using a layered manufacturing rapid prototyping technique. After the object is built it is exposed to a vaporized solvent such as in a vaporizer for an exposure time sufficient to reflow the object surface. A solvent is chosen based on its ability to transiently soften the material which forms the object, and thereafter evaporate off the object. The object is removed from the solvent and allowed to dry, producing a smooth finished part.

Abstract: The invention relates to a device for recovering moisture present in the atmosphere. The device comprises a collection structure with a water recovery surface which during use at least partly makes an angle with respect to the orientation of gravity. Further, the collection structure is detachably couplable to a reservoir for storing the recovered moisture. In addition, the collection structure is nestable.

Abstract: Disclosed is a clothes dryer including a heat exchanger for condensing air discharged from a drum to remove moisture from the air, a collector for collecting condensed water produced in the heat exchanger, a first pump for pumping the condensed water from the collector to a water tank, and a discharge unit for selectively discharging the condensed water from the water tank, to wash the heat exchanger using the condensed water.

Abstract: Household-type clothes drying machine provided with a rotating drum (1), first means adapted to circulate a stream of drying air through said drum and comprising an appropriate inflow conduit and an outflow conduit for said air stream, second means (3) adapted to generate a gas or vapour stream, a first delivery pipe conduit (4) connecting said second means with an ejection arrangement located on the inner surface of the loading door of the drum, a second drain pipe conduit (7) adapted to collect the condensed moisture from said ejection arrangement and convey it into a collecting container; said ejection arrangement comprises a substantially sealed cell that is however provided with a first port (9) to enable the gas/vapour stream to flow in from said first delivery pipe conduit, a second port (10) to enable liquid and condensate to flow into said drain pipe conduit, and an ejection window (11) that opens into the interior of said drum and is adapted to eject said gas/vapour stream flowing in from said first

Abstract: A system and method is provided for vapor smoothing a rapid manufactured three-dimensional object. A cabinet housing has a sealable interior. A heated vapor chamber in the interior of the cabinet housing contains solvent that is vaporizable to fill the vapor chamber with vapor for smoothing the object when the object is placed in the vapor chamber. A drying chamber is also provided in the interior of the cabinet housing that is separate from the vapor chamber for drying the object when the object is moved from the vapor chamber to the drying chamber.

Abstract: Disclosed herein is a system for purifying contaminated soil, which restores soil contaminated by a variety of pollutants to the condition before the contamination, and which itself provides the driving source required for the purification. The system includes: a dryer which dries contaminated soil, separates waste gas generated during the drying from the contaminated soil, and discharges the waste gas; a pyrolysis apparatus which indirectly heats the dried contaminated soil in a hermetic condition to divide the contaminated soil into purified soil and pyrolysis gas, and separately discharges the purified soil and the pyrolysis gas; a transfer fan for forcibly transferring the discharged pyrolysis gas; a burner for oxidizing the waste gas discharged from the dryer and the pyrolysis gas forcibly transferred by the transfer fan, to heat the pyrolysis apparatus; and a cooling facility for directly spraying cooling water on the discharged purified soil to cool the purified soil.

Abstract: Disclosed herein are a dryer and a drying method of the same. The dryer includes a condensing unit to change water vapor evaporated from a drying object into condensate water by cooling, a condensate water storage container in which the condensate water is stored, a water level sensing device to detect a level of the stored condensate water, and a microcomputer to calculate a change rate of condensation or of the condensate water level based on the detected water level and to determine a value of dryness of the drying object. The dryer effectively performs a drying operation based on the accurately detected value of dryness of the drying object.

Abstract: The present invention relates to a cloth treating apparatus, including a cabinet which forms an exterior thereof, a drum rotatably mounted to the cabinet, a heat pump for supplying hot air to the drum, a steam generator for supplying steam to the drum, and a water tank for supplying water to the steam generator, wherein the water tank is positioned on a refrigerant flow passage of the heat pump, thereby increasing steam generating efficiency by elevating an initial temperature of the water used for the steam generation.

Abstract: The subject of the invention is a hot gas generator (8), particularly for a dehydration or drying unit, the generator comprising a burner or hearth (9) and being characterized in that it comprises at least one exchange circuit (10) comprising at least one pipe through which the gas to be heated flows, the pipe comprising a cool gas inlet end (11) and a hot gas discharge outlet (12), the pipe having a surface for heat exchange between the combustion gases generated by the burner or hearth (9) and the gas to be heated which flows through the pipe, the pipe also providing a physical barrier between the heated gases and the combustion gases generated by the burner or hearth. Application to producing a drying or dehydration installation.

Abstract: A domestic appliance for drying a damp product by means of a process air stream that is conducted in a process air channel. The appliance has a treatment chamber that includes the damp product. A cooling assembly cools and condenses the process air stream after it flows through the treatment chamber. A first heat exchanger supplies heat from the process air stream to a working fluid. A heating assembly heats the process air stream before it flows through the treatment chamber and a second heat exchanger supplies heat from the working fluid to the process air stream. The working fluid is conducted in a heat pump that has at least two mechanically coupled displacement pistons. The heat pump operates according to a regenerative gas cycle process that includes a Vuilleumier gas cycle process.

Abstract: A material drying apparatus for removing moisture from material positioned in an envelope interior. The apparatus comprises an inlet structure, an air removal assembly to remove air from the interior, and a moisture removal assembly for removing moisture from gases from the interior. The assembly comprises a first moisture removal structure, a second moisture removal structure, and a heat pump for transferring heat in a selected direction between the first and second moisture removal structures. The heat pump alternately heats a heat exchanger of one moisture removal structure and cooling a heat exchanger of the other moisture removal structures. The apparatus comprises a control apparatus for controlling operation of the first and second moisture removal assemblies and the heat pump. The control apparatus is configured to sense a condition of the apparatus and reverse operation of the heat pump upon detecting that the condition has passed a predetermined level.

Abstract: The domestic appliance is designed to dry a humid product by means of a process air stream that can be conducted in a process air channel, said stream flowing through a treatment chamber comprising the product and a cooling assembly for cooling and condensing the process air stream once the latter has passed through the treatment chamber. The cooling assembly has a first heat exchanger, by means of which heal from the process air stream can be supplied to a working fluid, and a heating assembly connected downstream of the cooling assembly for heating the process air stream before the latter flows through the treatment chamber, said beating assembly having a second heat exchanger, by means of which heat from the working fluid can be supplied to the process air stream. The working fluid is conducted in a heat pump, which operates according to a regenerative gas process.

Abstract: A thermal cycle and mass flow circuit designed for the purpose of drying materials. Binary fluid ejector desiccation represents a new thermodynamic bi-cycle in the field of desiccation (drying). The binary fluid ejector desiccation comprises binary-fluid ejector gas-phase fluid compression and transport, a thermodynamic cycle where phase change energy from the evaporation process is captured, re-circulated and reused as an energy source for the evaporation process itself, and for one method of use, a mass flow circuit that exploits the fluid constituents from the desiccating material as the refrigerant component of the binary working fluid. Methods of use are taught where direct or indirect heat transfer occurs between the working fluid(s) and the material being desiccated.

Abstract: A dryer is provided having a drying chamber for items to be dried and a process air duct in which are located a heater for heating the process air, a blower for driving the process air from the heater through the drying chamber, and a heat exchanger arrangement. Via the heat exchanger arrangement, heat can be withdrawn from the process air flowing away from the drying chamber, and the process air flowing toward the heater can be fed to the heat exchanger. The process air duct is divided into a main duct and a secondary duct, the secondary duct having an evaporator in which condensate that was separated from the process air in the heat exchanger arrangement can be evaporated into the process air flowing therethrough and is connected to the exhaust opening.

Abstract: A clothes-treating apparatus and a controlling method thereof are disclosed. According to a controlling method of a clothes-treating apparatus, a predetermined operational condition of a compressor included in a heat pump to supply dry air to clothes placed therein may be maintained normally. Furthermore, a cooling fan provided in a mechanism compartment is operated only if an internal environment of the mechanism compartment is out of the normal operational condition of the compressor. As a result, noise created from operation of the cooling fan may be reduced and dust that happens to be sucked into the mechanism compartment when external air is drawn may be minimized.

Abstract: A domestic appliance for the care of washed articles having with a container for receiving washed articles; a process air supply which is operationally connected to the container in fluid communication therewith whereby process air flows through the container during appliance operation; and a first heat exchanger which is in fluid communication with the process air supply for dehumidifying the process air exiting the container, the domestic appliance comprising a supplementary heat exchanger for lint filtering operationally disposed in the process air supply in fluid communication with the heat exchanger and the container.

Abstract: A domestic appliance for drying laundry having a component around which process air flows. The component has a substrate made of metal and the substrate has a surface facing the process air. The surface carries a coating that prevents adhesion of foreign particles and the coating has a surface energy of no more than 40 mN/m. The surface has a section that is directly impinged by the process air and that is essentially completely covered by the coating. The component has edges in the section covered by the coating and each of the edges is essentially completely covered by the coating.

Abstract: A cleaning/drying apparatus including a vapor area where vapor of an organic solvent inside the cleaning/drying apparatus is generated, an ejecting part configured to eject the organic solvent onto a cleaning/drying target, a first detecting part configured to determine whether the temperature of the cleaning/drying target is a first temperature equivalent to a temperature of the vapor in the vapor area, a second detecting part configured to determine whether the temperature of the cleaning/drying target is a second temperature enabling the organic solvent to condense on a surface of the cleaning/drying target, and a cleaning/drying control part configured to drive the ejecting part to eject the organic solvent when the first detecting part detects that the temperature of the cleaning/drying target is the first temperature and stop the ejection when the second detecting part detects that the temperature of the cleaning/drying target is the second temperature.

Abstract: A household appliance includes a housing, a controller within the housing, a drying chamber within the housing, a closed-loop process air channel within the housing and including, a first blower operable by the controller, a heat pump operable by the controller, a condensate collector that collects condensate from the heat pump, and means for cooling a component of the heat pump including an open-loop cooling channel with a second blower operable by the controller. The appliance further includes a temperature sensor within the housing operable by the controller to generate a signal dependent upon a temperature within the housing, and wherein the controller operates the second blower in response to the signal.

Abstract: An apparatus serves for the treatment of particulate material and comprises a process chamber for the reception and treatment of the particulate material. The process chamber has a bottom provided with a passage orifice through which the process air can be introduced into said process chamber and an outlet for the discharge of said process air from said process chamber. A device for conditioning said process air and for circulating said process air in a circuit through said process chamber said outlet and back to said bottom has at least one fan for circulating said process air at least one condenser and at least one process air heater. A filter arrangement is provided for removing solids from said process air flowing out of said process chamber. A second chamber is arranged around said process chamber within said second chamber at least parts of said filter arrangement at least parts of said device for conditioning the process air are received.

Abstract: A tumble dryer including a heat pump that includes a Peltier module having a plurality of Peltier elements operationally associated therewith and wherein the Peltier module has a cold side and a warm side; at least two air-directing ducts including a first duct in fluid communication with the Peltier module cool side through which cooling air is directed for cooling and dehumidifying; and a second duct in fluid communication with the Peltier module warm side through which dried air is directed for reheating; and an air and water vapor permeable filter disposed in the second duct facing the Peltier elements. Moisture which arises on the Peltier elements can thereby escape into the duct.

Abstract: Disclosed is the dehumidifying apparatus for a dryer comprising: a case; a drum disposed inside the case and for receiving objects to be dried therein; and a hot air supplying unit for supplying hot air into the drum and drying the objects to be dried, the dehumidifying apparatus, comprising: a plurality of dehumidifying units, thereby capable of controlling humidity of exhausted air to a required level of humidity by removing moisture contained in air exhausted from the plurality of dehumidifying units in multiple steps.

Abstract: The present invention provides a garment dryer including a heat pump device. The inventive garment dryer has an improved heat exchange efficiency without uneven airflow around a heat exchanger (a heat absorber and a radiator) of the heat pump device. A heat exchange air duct portion (22) is defined in a heat pump unit (14). A heat absorber (23) and a radiator (24) are provided as a heat exchanger in the heat exchange air duct portion (22). An upstream buffer space (33) for changing the flow direction of air to regulate the flow rate of the air is provided upstream of the heat absorber (23). A downstream buffer space (34) for regulating the flow rate of the air is provided downstream of the radiator (24). As a result, the airflow around the heat exchanger is uniformly regulated, thereby improving the heat exchange efficiency of the heat exchanger.

Abstract: A heat pump module and a drying apparatus having the same are provided. The heat pump module may include a housing, an evaporator provided in the housing that condenses humid air introduced into the housing via evaporation of a refrigerant, a condenser provided in the housing that heats the air having passed through the evaporator via condensation of the refrigerant, and at least one condensed water guide or remover provided in the housing that removes condensed water generated on a surface of the evaporator therefrom.

Abstract: A drying apparatus and a controlling method thereof are provided. During an initial phase of drying operation according to a selected drying cycle, a point of terminating the drying operation is calculated based on a moisture level sensed by a moisture sensor and a moisture output quantity stored in the storage. Drying is performed up to the calculated point of drying operation termination.

Abstract: A freeze-drying device for the monitoring and control of water vapor in a freeze-drying process, comprising an optical spectrometer, and methods of using same to monitor and control the amount of water vapor in said process under sterile conditions.

Abstract: The subject of the invention is a hot gas generator (8), particularly for a dehydration or drying unit, the generator comprising a burner or hearth (9) and being characterized in that it comprises at least one exchange circuit (10) comprising at least one pipe through which the gas to be heated flows, the pipe comprising a cool gas inlet end (11) and a hot gas discharge outlet (12), the pipe having a surface for heat exchange between the combustion gases generated by the burner or hearth (9) and the gas to be heated which flows through the pipe, the pipe also providing a physical barrier between the heated gases and the combustion gases generated by the burner or hearth. Application to producing a drying or dehydration installation.

Abstract: Disclosed is the dehumidifying apparatus for a dryer comprising: a case; a drum disposed inside the case and for receiving objects to be dried therein; and a hot air supplying unit for supplying hot air into the drum and drying the objects to be dried, the dehumidifying apparatus, comprising: a dehumidifying unit having a heat exchanger for cooling hot air flowing from the drum; and a water tank for containing a fluid supplied to the heat exchanger, wherein the fluid circulates between the heat exchanger and the water tank. The dehumidifying apparatus for a dryer may reduce an amount of water used for operating the dryer, prevent the waste of water, and stably supply recycled cool water to the heat exchanger from the water tank.

Abstract: A condensation dryer includes a drying chamber for objects to be dried, a process air channel, a heater in the process air channel for heating the process air, a heat exchanger in the process air channel for cooling the process air after passing through the drying chamber, a fan in the process air channel for conveying the process air, a rinsing container connected to a water supply, and a controller.

Abstract: An installation for drying organic matter, especially kitchen and food wastes or other biological matter, including matter that contains packaging residues, napkins, straws or the like. The installation comprises the following components: (a) a vacuum mixer (M) having a closable charging opening for introducing the organic matter and a closable discharge opening, disposed at the bottom or laterally towards the bottom, for the dried matter, (b) at least one vacuum pump (VP) for evacuating the air in the mixer to generate the vacuum, the pump being connected to at least one evacuation tube mounted above the maximum filling level in the housing of the mixer (M), (c) a heater (H) for heating the organic matter, (d) at least one condenser (K), connected to the air evacuation duct (AL) of the vacuum pump (VP) and having a cooling unit (KA) connected thereto to condense the evacuated air, and (e) a discharge duct (AW) for the condensate obtained from the evacuated air by cooling in the condenser (K).

Abstract: A water supply device for a drying machine and a method for controlling the same are disclosed. The water supply device includes a common hose (310) having one end connected to at least one water supply source (300), a drying machine water supply hose (300) having one end connected to the common hose (310) and the other end connected to a steam generator (1) of the drying machine, and a washing machine water supply hose (330) having one end connected to the common hose (310) and the other end connected to a washing machine (2). With the provision of the water supply device, the drying machine has the effects of preventing wrinkles, creases, or the like from being generated in an object to be dried, such as clothes, and the like, or eleminating wrinkles, creases, or the like in clothes, and the like.

Abstract: Household-type clothes drying machine provided with a rotating drum (1), first means adapted to circulate a stream of drying air through said drum and comprising an appropriate inflow conduit and an outflow conduit for said air stream, second means (3) adapted to generate a gas or vapour stream, a first delivery pipe conduit (4) connecting said second means with an ejection arrangement located on the inner surface of the loading door of the drum, a second drain pipe conduit (7) adapted to collect the condensed moisture from said ejection arrangement and convey it into a collecting container; said ejection arrangement comprises a substantially sealed cell that is however provided with a first port (9) to enable the gas/vapour stream to flow in from said first delivery pipe conduit, a second port (10) to enable liquid and condensate to flow into said drain pipe conduit, and an ejection window (11) that opens into the interior of said drum and is adapted to eject said gas/vapour stream flowing in from said first

Abstract: Disclosed is a ductless dryer having a heat exchanger module in accordance with the present invention. The heat exchanger module is configured to have a water-supplying inlet disposed at an outlet for air and to be provided with a sealing unit, a drain recess and a leakage preventing protrusion. Thus, a dehumidifying performance for humid air is enhanced. Accordingly, it is capable of preventing mold from being gathered on a wall of an installation space caused by exhausting the air in which moisture is not removed. Also, it is capable of preventing a user in the installation space from feeling unpleasant caused by exhausting the air in which the moisture is not removed to the installation space.

Abstract: A dryer includes a dryer body, a driving device, a groove, and an upper cover. The groove is located around the opening of the dryer body. The upper cover has a cone shape and is located at the opening of the dryer body. The edge of the bottom of the upper cover is located at the groove. The angle of the cone end of the upper cover makes the water droplets condensed on the inner wall of the upper cover slide downward along the inner wall of the upper cover so that they are collected in the groove.

Abstract: A drying apparatus for drying articles such as clothing is provided. The drying apparatus includes a chamber for containing articles to be dried and a system for supplying heated dry air at a first temperature to the chamber. The air supplying system comprises an air flow pathway having an evaporator for removing moisture from air exiting the chamber and for decreasing the temperature of the air to below dew point temperature. The air supply system further has a condenser for increasing the temperature of the air exiting the evaporator to the first temperature. The drying apparatus further has a heat pump system having a refrigerant loop which includes a compressor, the condenser, a TEV valve, and the evaporator.

Abstract: A method for operating a condenser tumble dryer is provided and includes a drying chamber for containing objects to be dried, a process air circuit having a heating element, a fan for conducting heated process air over the objects, a heat pump circuit having an evaporator, a compressor, and a condenser, and sensors for determining the humidity in the objects to be dried. According to the method, the humidity is determined and the process air is heated by the condenser until the humidity ranges between about 0% and about 12%. In the event that the humidity drops below the predetermined value, the heating element is activated and operated for at least five minutes so that the air temperature in the drying chamber reaches at least 70° C.

Abstract: Disclosed herein is a condensation type dryer. The dryer includes a circulation tube communicating at both ends thereof with a tub to define a passage through which air inside the tub is circulated, a blowing fan disposed inside the circulation tube to circulate the air inside the tub, a heater disposed inside the circulation tube to heat air supplied into the tub, and a condensation tube connected to a water supply source to supply cooling water into the circulation tube, the condensation tube has a serpentine shape.

Abstract: An operation method for a drying device is disclosed. More particularly, the present invention relates to a new type of a drying device which enables air in a drying drum and a cabinet for drying the laundry to circulate continuously, as well as capable of getting a suitable output of power based on each drying cycle due to a various structure of a drying heater.

Abstract: A drying apparatus has a heat pump comprising a compressor (31), a radiator (32), a throttle apparatus (33) and an evaporator (34), and also includes a structure in which drying air heated by heat of the radiator (32) is introduced to a subject (37) to be dried is dehumidified by the evaporator (34). The drying apparatus also includes a bypass circuit (39) through which a portion of dying air heated by the radiator (32) flows to an inlet of the evaporator (34) without coming into contact with the subject, a super heat detecting device (43, 44) for detecting super heat of the heat pump apparatus, and a throttle apparatus control device for controlling flow path resistance in the bypass circuit (39) using a value detected by the super heat detecting device (43, 44).

Abstract: An gas drying apparatus which comprises a housing comprising a sidewall defining at least one opening; ma gas drying material positioned within the housing; an inlet tube wherein at least a portion of the inlet tube is positioned inside the housing; and a piece of porous material positioned around the inlet tube and between the gas drying material and the opening. The invention includes a housing which comprises a sidewall which defines an opening wherein the housing contains a gas drying material, wherein an inlet tube is secured to the housing and at least a portion of the inlet tube is positioned within the housing; and a housing holder wherein the holder defines a cavity to receive the at least one opening.

Abstract: A condensing type dryer uses a heat exchanger in which condensed water can be smoothly discharged through a water-discharging slot formed in a rear end portion of a rear cover of the heat exchanger. The water-discharging slot prevents an air flowing resistance which can be caused by condensed water pooling at the rear end portion of the rear cover. Also, leakage-preventing walls enhance the heat exchanging function by ensuring a uniform flow of cold external air through the heat changer. The leakage-preventing walls prevent external air from leaking around the lateral edges of the heat exchanger.

Abstract: A vapor hood for a paper machine and/or paperboard machine, in particular for the drying section of a paper machine and/or paperboard machine, having a hood housing, wherein an inner housing surface of the hood housing delimits an internal space in which a process area, in particular the drying section, of the paper machine and/or paperboard machine is arranged or can be arranged, wherein on the inner housing surface in at least a sub-region there is arranged at least one condensation sensor for detecting a formation of condensate or an imminent formation of condensate in said sub-region.

Abstract: The invention relates to a method and a device for drying objects (2), especially painted vehicle bodies. According to said method, the objects (2) are displaced through a dry zone (8) wherein they are hardened in an inert gas atmosphere. Inert gas is continuously or intermittently removed from the dry zone (8), and guided along at least one surface which is cooled to a temperature below the dew point of the impurities contained in the inert gas. In this way, the impurities condense on the cooled surface. The relatively costly inert gas can thus be used for a long time.

Abstract: A lyophilization apparatus includes a chamber and plural drying shelves arranged in vertically spaced apart relation. Each shelf has an inlet, outlet, and flow passageway therebetween. Plural sets of shelves are independently coupled to separate sources of circulating heat exchange fluid. In a preferred embodiment, every second shelf is fluidically coupled to a first inlet manifold and a first outlet manifold, and every other shelf is fluidically coupled to a second inlet manifold a second outlet manifold. The first inlet and outlet manifolds are fluidically coupled to a first circulating source of heat exchange fluid and the second inlet and outlet manifolds are fluidically coupled to a second circulating source of heat exchange fluid, whereby the temperature of each drying shelf can be controlled independently of a vertically adjacent one of the drying shelves. In a further aspect, a lyophilization process is also provided.

Abstract: There are disclosed a heat pump device and a drying machine using the device in which abnormal water supplying into a water-cooling heat exchanger for use in water-cooling of a heat pump can be easily detected without disposing any water amount gauge particularly.