A buffered multi-fluid heat exchanger and a buffered multi-fluid heat exchange process pertaining to the heat exchange equipment and process sector is disclosed. The heat exchanger (1) comprises a lower tubing or tube bundles (2) through which flows hot process fluid “Q” to be cooled; upper tubing or tube bundles (3) through which flows cold process fluid “F” to be heated, parallel to and spaced apart from the lower tubing (2); a vessel (4) for the tubing (2, 3) provided with inlet (2′) and outlet (2″) nozzles of the tubing (2), inlet (3′) and outlet (3″) nozzles of the tubing (3), and a portion of buffer fluid “T” that fills part of the vessel (4) that covers the lower tubing (2) through which circulates the hot process liquid “Q” to be cooled.

The disclosure relates to a thermosiphon system operable to consistently maintain the permafrost and active frost layer in a frozen condition to adequately support buildings and other structures. During cooler seasons, the thermosiphon system uses a passive refrigeration cycle to efficiently maintain the frozen layers using the cold air. When the air temperature rises during the warmer months, the system transitions into an active refrigeration mode that uses a refrigeration system to minimize thawing or degradation of the permafrost and active frost layers.

A heat emitting radiator for use in a fluid circuit containing coolant therein, and which can generate substantial amounts of heat to heat larger spaces, such as in a home or business, while utilizing minimal power to run, and which can be utilized in various implementations and configurations. The radiator can be selectively activated or de-activated by, for example, a cell phone or the like whereby the fluid circuit in the radiator can be monitored for time of use, temperature and cost of use.

Herein is disclosed a dehumidifier for dehumidifying ambient air in an airstream from an inlet to an exhaust from an outlet in a housing. The dehumidifier comprises an evaporator having an evaporator downstream face and an evaporator upstream face; and downstream 5 from the evaporator a condenser having a condenser downstream face and a condenser upstream face. The dehumidifier further has a thermosiphon arrangement configured to be arranged with a thermosiphon evaporator part upstream from the evaporator and a thermosiphon condenser part upstream from the condenser and downstream from the evaporator. The thermosiphon arrangement comprises a thermosiphon block configured for a refrigerant to communicate between a first header and a second header interconnected with a fluid communicator arrangement being multiple tubes, wherein the thermosiphon block is sealed and contains the refrigerant.

A water-cooling head includes a casing, a base, a thermal conduction structure and a pump. An active space is defined by the base and the casing collaboratively. A working medium is filled in the active space. The pump includes a fixing element, a shaft and an impeller. After the fixing element is fixed, the fixing element is contacted with the base or contacted with the thermal conduction structure, and the shaft is fixed on the fixing element. Consequently, the impeller is stably rotated about the shaft, and the performance and the reliability of the water-cooling head are enhanced.

A vapor-liquid phase fluid heat transfer module includes: at least one evaporator having a first chamber inside, which containing a first working medium; at least one evaporator tube body having a first end, a second end and a condensation section positioned, the first and second ends communicating with the first chamber of the at least one evaporator to form a loop of the first working medium; at least one heat exchanger having a heat exchange chamber, a first face and a second face for the condensation section of the evaporator tube body to attach to; and at least one heat sink tube body, which communicating with the heat exchange chamber of the at least one heat exchanger and the at least one heat sink to form a loop of the second working medium.

A method and system for cooling sulfuric acid aqueous solutions (H.sub.2SO.sub.4) belonging to the field of chemical processes, which is part of a contact process for production of sulfuric acid with or without energy recovery. The method comprises absorption of SO.sub.3, which produces heated concentrated sulfuric acid and indirectly cooling the hot acid. The method uses a sulfuric acid-inert coolant. A cooling step comprises an intermediate indirect acid-fluid cooling and a second fluid-water or fluid indirect cooling stepthird fluid, wherein when the process is of the type with energy recovery. A third step includes energy recovery, steam generation. A system to perform the method, which works next to the SO.sub.3 absorption tower comprises an acid cooling loop consisting of an intermediate acid-fluid heat exchanger; a second fluid-water heat exchanger, and when the process is of the type with energy recovery, said equipment further includes a steam generation boiler.

The present invention provides an apparatus for preheating fuel and cooling liquid in an internal combustion engine system. The fuel preheating apparatus comprising a generally rectangular shape fluid-tight container body with a hollow interior. A top wall of the apparatus being provided with a fuel inlet, a fuel outlet, a coolant inlet, and a coolant outlet. A fuel coiled tubing is provided within the hollow interior and has a first end and a second end where the first end is coupled to the fuel inlet. A coolant coiled tubing is adjacent the fuel coiled tubing and have a first end and a second end where the first end is coupled to the coolant inlet. A degassing tank is coupled to the fuel outlet and the fuel coiled tubing. A buffer tank is coupled to the coolant outlet and the coolant coiled tubing.

An electric device (1) comprises a portion generating heat and a portion for dissipating said generated heat by heat exchange with a fluid, wherein said heat dissipating portion comprises means for generating a turbulent flow in the fluid.

The disclosure relates to a thermosiphon system operable to consistently maintain the permafrost and active frost layer in a frozen condition to adequately support buildings and other structures. During cooler seasons, the thermosiphon system uses a passive refrigeration cycle to efficiently maintain the frozen layers using the cold air. When the air temperature rises during the warmer months, the system transitions into an active refrigeration mode that uses a refrigeration system to minimize thawing or degradation of the permafrost and active frost layers.