Abstract: A method for cool drying gas having the steps of determining the evaporator temperature and/or evaporator pressure and measuring the lowest gas temperature. The method includes the step of determining the load of the cooling circuit on the basis of the evaporator temperature and/or evaporator pressure and the lowest gas temperature and calculating a desired value for the evaporator temperature and/or evaporator pressure that is required to cool the gas supplied to a set lowest gas temperature which includes the load. The speed of the compressor is then controlled to make the evaporator temperature and/or evaporator pressure equal to the desired value.

Abstract: A thermal load based automatic valve arrangement including an actuator responsive to fluid temperature flowing through the arrangement, a closure member operably connected to the actuator, and a seat receptive to the closure member to prevent or restrict fluid flow through the arrangement in a first direction when actuated while still allowing fluid flow in a second direction. A method for controlling steam movement in a production string of a SAGD (Steam Assisted Gravity Drainage) installation including sensing with an actuator, temperature of fluid moving through a valve arrangement, automatically adjusting the valve arrangement pursuant to thermal load on the actuator.

Abstract: A cooling/heating switching unit includes first to third fittings, expansion valves and expansion-valve driving sections, a housing, a heat insulating material, and a refrigerant leak detection sensor. The first and second fittings respectively connect with a high/low-pressure-gas main pipe and a low-pressure-gas main pipe, which are linked to an outdoor unit. The third fitting connects with an indoor-unit connection pipe, which is linked to indoor units. The expansion valve for high/low-pressure-gas pipe, the expansion valve for low-pressure-gas pipe, and expansion-valve driving sections selectively connect the first or second fitting with the third fitting via a refrigerant pipe to control a flow direction of refrigerant. The housing houses the refrigerant pipe. The heat insulating material fills inside of the housing to insulate the refrigerant pipe arranged inside of the housing from heat. The refrigerant leak detection sensor is installed outside of the housing to detect leaked refrigerant.

Abstract: A sheet material is used for a heat exchange between a first fluid and a second fluid, and inducing a phase change in the fluids. Additionally, the sheet material is folded to form a plurality of slits to constitute flow paths of the fluids. Further, the slits for the first fluid, through at least one seal, are closed. Furthermore, the slits for the second fluid, through at least one seal, are fully or partly open for fluid outflow.

Abstract: A heat exchanger and a method of manufacturing a heat exchanger having an internal conduit for conducting a fluid, and a heat dissipating body for dissipating heat of the fluid. The heat dissipating body has a cavity extending in a longitudinal direction. An end piece of the internal conduit extends inside of the cavity and has an orifice facing a bottom surface of the cavity for feeding the fluid into a bottom area of the cavity. An inner shell of the heat dissipating body includes a first portion and a second portion, each portion having at least two ribs transversally displaced in relation to each other. At least one rib of one of the first and the second portion is transversally displaced in relation to each rib of the other of the first and the second portion.

Abstract: In controlling the HVAC system, a need to determine an expected indoor temperature profile for a particular schedule of setpoint temperatures may arise. To make such a determination, a thermodynamic model of the structure is used. The thermodynamic model is generated by fitting weighting factors of a set of basis functions to a variety of historical data including time information, temperature information, and HVAC actuation state information. The set of basis functions characterize an indoor temperature trajectory of the structure in response to a change in HVAC actuation state, and include an inertial carryover component that characterizes a carryover of a rate of indoor temperature change that was occurring immediately prior to the change in actuation state.

Abstract: A refrigerator includes a main body having a storage compartment, and an ice maker provided in the storage compartment to make ice. The ice maker includes a cooling device to provide cold air, an ice-making tray movably provided between a first position adjacent to the cooling device and a second position spaced farther from the cooling device than the first position, and an ejector is configured to move the ice-making tray. The ejector includes a driving portion to separate the ice produced in the ice-making tray.

Abstract: A method for removing carbon dioxide from a carrier liquid using a heat exchanger. A carrier liquid, containing carbon dioxide, is heated through the heat exchanger, causing the carbon dioxide to vaporize. The carrier liquid and the carbon dioxide gas pass to a liquid removal vessel. The carrier liquid is removed and the carbon dioxide gas is compressed. The compressed carbon dioxide gas is provided to the heat exchanger, cooling the carbon dioxide gas opposite the carrier liquid, producing a carbon dioxide liquid.

Abstract: An anomaly monitoring device is installed in an integrated gasification combined cycle plant that experiences varying loads, and the device monitors a heat exchanger that performs heat exchange between a carbon-containing fuel and a heat exchange medium flowing through a heat transfer tube. For each load on the integrated gasification combined cycle plant, the anomaly monitoring device calculates the average value and the standard deviation of a state quantity of the heat exchanger, calculates the Mahalanobis distance on the basis of the average value and the standard deviation, and from the calculated Mahalanobis distance determines the presence or absence of an anomaly of the heat transfer surface of the heat transfer tube.

Abstract: A method for automatically operating a heating system controller for heating an indoor space so that the indoor temperature measurement signals are kept a) at approximately or above a default set point when the automatically obtained outdoor temperature indicator signals reflect an outdoor temperature indicator that is above a freeze protection point, or b) at approximately a computed set point that is higher than the default set point when the outdoor temperature indicator signals reflect an outdoor temperature indicator that is below the freeze protection point. The computed set point can be based on an outdoor temperature indicator. A heating system comprising a furnace, a thermostatic controller, a sensor of indoor temperature operatively connected to the thermostatic controller, a receiver operatively connected to the thermostatic controller for receiving a signal indicative of an outdoor temperature indicator, wherein the thermostatic controller is configured to operate according to the method.

Abstract: A system based on temperature and/or pressure switches connected to a fan controller. An HVAC circuit includes at least one condenser coil with a plurality of tubes, one or more stages coupled to one or more compressors, at least one temperature sensor, at least one fan configured to provide airflow across the plurality of tubes, and a controller. Instead of cycling the fan off and on, fans associated with the condenser are kept running at a low speed.

Abstract: At least one forced convection unit added to a passive heat transport system is operated during transient heat loading periods but not operated under steady state conditions for cooling and maintaining a set point temperature of a chamber or surface. Forced convection is selectively employed based on temperature data and/or set point temperature values. A reject heat transport system includes first and second reject heat sinks each coupled via main and crossover transport tubes to first and second reject heat exchangers, permitting both heat sinks to dissipate heat from first and second thermoelectric heat pumps regardless of whether the first, the second, or the first and second heat pumps are in operation.

Abstract: A heat exchanger includes a plurality of first refrigerant flow tubes in fluid communication with one of a suction line and a liquid line, and a second refrigerant flow tube in fluid communication with the other of the suction line and the liquid line. Each of the first refrigerant flow tubes and the second refrigerant flow tube have microchannels, the second refrigerant flow tube positioned between and cooperates with the first refrigerant flow tubes to heat vapor refrigerant flowing in the suction line, the refrigerant directed to or exiting the second refrigerant flow tube flows around a portion of at least one of the first refrigerant flow tubes.

Abstract: A heat pump device includes a compressor, a motor, a shell, a muffler, a heat exchanger, a housing, a blower, a first insulating material, and a second insulating material. The compressor compresses refrigerant. The motor drives the compressor. The shell houses the motor and the compressor. The compressor is connected to the muffler, which is further connected to heat exchanger. The housing has first and second spaces. The shell, the heat exchanger, and the muffler are disposed in the first space. The blower is disposed in the second space. The muffler is entirely located within a space between the shell and the first heat exchanger. The first insulating material at least partially cover the discharge muffler and the first heat exchanger. The second insulating material at least partially cover the shell. The first insulating material has a higher thermal resistance than the second insulating material.

Abstract: An evaporator has an outer peripheral side held by a holding portion. The evaporator includes a body portion and a packing located on a part of the body portion that faces to the holding portion. The packing includes an inner elastic layer and an outer elastic layer. The inner elastic layer has a water absorbability smaller than that of the outer elastic layer and is made of a closed cell foam member. The outer elastic layer is made of an open cell foam member. The holding portion includes a first rib preventing an air from flowing along the outer peripheral side of the body portion, and a second rib preventing a displacement of the body portion. A thickness of the outer elastic layer in a condition where the outer elastic layer is not held by the holding portion is larger than a protrusion length of the first rib.

Abstract: A condenser includes: a vessel (11) configured to receive a steam flow (S) in a first horizontal direction (X); and cooling tube groups (21, 22, 23, 24) elongated in the first horizontal direction (X) inside the vessel. Each of the cooling tubes groups has a plurality of cooling tubes (31) that are disposed in parallel and extend in a second horizontal direction (Y), which intersects with the first horizontal direction. A hollow portion (32) is formed in the first horizontal direction (X) inside each of the cooling tube groups. A non-condensed gas discharge unit (33) is arranged in the second horizontal direction (Y) at a downstream side of each of the cooling tube groups and includes an opening portion (34) on the hollow portion side. Each of the cooling tube groups includes a partition member (35) extending from the non-condensed gas discharge unit and open at the hollow portion.

Abstract: A heat storage system has a heat source that generates heat and releases the heat to a first heat medium and a heat storage body that stores heat. The heat storage body changes to a first phase in a solid state when a temperature of the heat storage body is lower than or equal to a phase transition temperature, and changes to a second phase in a solid state when a temperature of the heat storage body exceeds the phase transition temperature. The heat storage body stores or releases heat due to a phase transition between the first phase and the second phase. A mode of operation of the heat storage body is switchable between a heat storage mode in which the heat storage body stores heat of the first heat medium and a heat release mode in which the heat storage body releases the heat stored in the heat storage body to a heat transfer target.

Abstract: A liquid cooling radiator with impurities filtering includes a radiation fin module, a top cover and a bottom cover respectively enclosed at two opposite ends of the radiation fin module, liquid cooling heat dissipation pipes tightly inserted through the radiation fin module in communication between an enclosed top chamber in the top cover and an enclosed bottom chamber in the bottom cover for coolant circulation, and wire gauge filters individually mounted in the liquid cooling heat dissipation pipes for removing impurities from the circulating coolant and slowing down the flowing speed of the circulating coolant.

Abstract: A method controls a vapor compression system including a variable speed compressor. A desired discharge temperature of the compressor is determined using a mapping between values of the discharge temperature of the compressor and values of speed of the compressor and outdoor air temperature. A transition function for transitioning a current discharge temperature to the desired discharge temperature is determined, such that the transition function is continuous and a rate of change of the transition function is limited. Next, a valve of the vapor compression system is controlled such that the discharge temperature is transitioned to the desired discharge temperature based on the transition function.

Abstract: A system for conditioning a sour gas feed stream for a cryogenic distillation tower. A dehydration unit separates the sour gas feed stream into a first stream including water and a feed stream. A sequential cooling assembly is coupled to both the dehydration unit and the cryogenic distillation tower. The sequential cooling assembly includes: a first stage that separates the feed stream into a partially cooled feed stream and a second stream including acid gas; a second stage that cools the partially cooled feed stream into a cooled feed stream and a third stream including acid gas; and a cooled feed stream header coupled to a cryogenic distillation tower feed inlet. The first stage, the second stage, or both send at least one of the second and third streams to a bottom section of the cryogenic distillation tower.