Abstract: An arrangement for ventilating a room contains a supply air duct arranged above an aisle region for delivering air into a room and, arranged above the supply air duct, an exhaust air duct for discharging exhaust air. The supply air duct contains two lateral air delivery portions which extend along the aisle region and each contain air outlet openings from which the supply air exits laterally. A substantially airtight central separating portion separates the first and the second air delivery portions from one another. The exhaust air duct contains two slot-like suction openings which extend substantially parallel to the supply air duct and are arranged in the ceiling such that there is formed on both sides of the aisle region a rolling air flow via which supply air heated in the region of work tables passes in a vertical direction into the region of the ceiling.

Abstract: In an air conditioning system, a control unit controls an adjusting unit to adjust a ratio between an amount of a first part of introduced air passing through a heater core and an amount of a second part of the introduced air bypassing the heater core to a first ratio at which the amount of the first part of the introduced air decreases from a maximized amount of the first part of the introduced air according to an increase in temperature of the heater core by a warming unit. When a setting temperature for air conditioning is increased by an input unit, the control unit controls the adjusting unit to change the ratio from the first ratio to a second ratio at which the amount of the first part of the introduced air increases.

Abstract: A tunnel ventilation system located in an upper section of a tunnel has a ventilation section divided into two or three ventilation ducts. One or more of the ducts are connected to reversible fan units so the ducts can serve as either an air infeed or an air exhaust system. The ducts contain a series of remotely controlled flaps which can be opened to ventilate different tunnel zones or closed to isolate other parts of the tunnel. Air blowers at tunnel entrances create an air screen that prevents unintended air circulation into the tunnel. Heat, smoke and other sensors and a software control system enable the system to detect smoke and fire, then to isolate and control ventilation in the fire zone. A fire suppression system using low oxygen air or other fire suppression fluids to blanket and smother the fire operates in conjunction with the ventilation system.

Abstract: To achieve an improvement of heat exchanger effectiveness (heat transfer rate) without any increase of a fan motor output. The gas heated by the heating units or the gas cooled down by the cooling units is sent to the blowing nozzles 2 by a fan. Then, the blowing nozzles 2 blow the gas sent by the fan through their outlets. Each of the outlets has a non-circular planar shape with a projection portion thereof being projected inwardly. This allows a shape of the gas in cross section perpendicular to a direction where the gas is blown through the outlet of each of the blowing nozzles 2 to be changed by the projection portion with time (switching phenomenon). Such a switching phenomenon enables to be increased the heat exchanger effectiveness (heat transfer rate) on the printed board even if any output of the fan motor for rotating the fan does not increase.

Abstract: A water heater is provided having a sorption based reactor that is integrated into a water tank. The water heater is operated between an adsorption cycle and a desorption cycle. During the endothermic desorption cycle, a primary heat exchanger is used to transfer heat from a condensing primary fluid that was vaporized from the sorbate to water in the tank. A charging heat transfer system supplies heat for the vaporization during endothermic desorption cycle. During the exothermic adsorption cycle, a secondary heat exchanger is used along with a secondary fluid to transfer heat generated by adsorption of the primary fluid to water in the tank. An evaporator provides for vaporization of the primary fluid during the adsorption cycle. Substantial improvements in energy efficiency can be achieved.

Abstract: Provided is a substrate treating apparatus. The substrate treating apparatus includes a chamber, a support member disposed within the chamber to support a substrate, and an exhaust member for exhausting a gas within an inner space of the chamber to the outside of the chamber. A trap space for collecting fumes contained in the gas is defined in the exhaust member.

Abstract: A device for cooling the opening of a rotary kiln via cool air-blowing, the kiln including a metal cylinder lined internally with a refractory material and being rotatably mounted relative to the frame of the kiln, into which materials are intended to be inserted and fired. The cooling device includes: the aforementioned cylinder and a metal cylinder end part covered with a refractory material and secured to the cylinder; two concentric metal casings, known as the inner and outer casing, which surround the cylinder of the kiln and form two annular channels; and ventilation elements that allow cool air to flow through the annular channels. The device includes: an annular distribution chamber which surrounds the cylinder, is secured thereto and supplies the first channel with air; ventilation elements including at least one fan and an electric motor actuating the fan, and supplying the distribution chamber in an air-tight manner.

Abstract: A ceiling mounted ventilation fan comprises a main housing including a first opening communicating with a duct and a second opening communicating with inside of a room, and a fan unit including a fan casing having an air inlet opened in the main housing, and the fan casing includes a first engagement part releasably engaged with the first opening of the main housing, and a second engagement part releasably engaged with an inner wall of the main housing, positioning of the fan casing in an installation position is achieved in a state that the first engagement part is engaged with the first opening and the second engagement part is engaged with the inner wall of the main housing, and a state of the engagement can visually be confirmed through the second opening in a state that the positioning is achieved.

Abstract: There is provided a drain recovery system with which power for driving a feedwater pump can be reduced and the feedwater pump can be driven at low costs. The drain recovery system includes: a buffer tank; an assist tank disposed below the buffer tank; a first drain supply line that connects a load device and the buffer tank; a second drain supply line that connects the buffer tank and the assist tank; a drain supply valve; a communication line that establishes communication between the assist tank and the buffer tank; a communication valve; a steam supply line that supplies steam from a boiler to the assist tank; a steam supply valve; a feedwater line that supplies drain from the assist tank to the boiler; and a feedwater pump.

Abstract: A waste heat boiler has heat exchange tubes for indirect heat exchange of a relatively hot process gas and a cooling media, and a by-pass tube for by-passing a part of the process gas; a swirl mixer ensures mixing of the cooled process gas and the relative hot process gas exiting the heat exchange tubes and the by-pass tube.

Abstract: A system includes a heat recovery steam generator (HRSG) having a plurality of evaporator sections. At least one evaporator section includes a forced circulation evaporator configured to generate a saturated steam, a once-through evaporator configured to generate a first superheated steam, and a first superheater configured to receive the saturated steam and the first superheated steam.

Abstract: The present invention becomes possible to employ a main microprocessor with a relatively lower number of input ports, whereby while maintaining the performance and function of a water heater, the cost of a control apparatus is cut down. Some of sensors, adapted for measurement of various parameters which are for use in operational control of the water heater and in need of immediate response, are connected to a main microprocessor 31. The other sensors that are not in need of an immediate response, such as an ambient temperature sensor 36, are connected only to a sub microprocessor 32 if the main microprocessor 31 does not have any extra analog signal input port. The sub microprocessor converts an analog signal from the sensor 36 which is connected only to the sub microprocessor into digital data. And the sub microprocessor transmits the digital data to the main microprocessor through communication therewith.

Abstract: Disclosed herein is a use of pulsed combustion to convert chemical energy to usable heat. For example, in boilers, heat is generated by burning fuel at burners and transferring the heat to water or other fluids, including air, through heat exchangers. In one form, these heated fluids may then be utilized to assist in removing oil from oil sand reservoirs.

Abstract: There is disclosed a receiver panel. In an embodiment, the panel is configured to receive a curtain of particles in a solar central receiver system. A porous structure of the panel has a top end and a bottom end. The porous structure is disposed between the top end and the bottom end. The porous structure has a size to impede movement of the particles during downward travel from the top end to the bottom end. There is disclosed a solar central receiver system. In an embodiment, the receiver system includes a plurality of receiver panels, a tower supporting the plurality of receiver panels in a configuration to receive solar irradiation, and a hopper forming a slot configured to dispose the particles at a given location on to the porous structure. Other embodiments are also disclosed.

Abstract: The present invention provides a hot water supply device. When a hot water supply operation is started in response to an instruction for checking a heat exchange state, a heat exchange state determiner 12 measures a post-boiling temperature Tup, which indicates the rise width of a temperature detected by a heat exchange outlet temperature sensor 26 from the point when the hot water supply operation stopped, and outputs a heat exchange success report if the post-boiling temperature Tup is lower than a first threshold temperature. Further, when the hot water supply operation is started independently of the instruction for checking a heat exchange state, the heat exchange state determiner 12 outputs a report of clogging of a heat exchanger if the post-boiling temperature Tup is higher than a second threshold temperature Bth, which is higher than the first threshold temperature Ath.

Abstract: This invention provides a under cabinet ducting kit comprising an under cabinet supply cover; at least two oval collars, wherein a first oval collar is connected to the under cabinet supply cover at a first end; a flexible duct hose, wherein a first end of the flexible duct hose is connected to the first oval collar at a second end, and wherein a second end of the flexible duct hose is connected to a first end of a second oval collar; a toe kick backer plate, wherein a second end of the second oval collar is connected the toe kick backer plate; and at least two metal band straps, wherein the metal band straps attach the flexible duct hose to each of the first and the second oval collars.

Abstract: A shroud that includes a body, a cavity, a curved outlet, and at least one non-linear channel. The body can have a top end and a bottom surface, as well as a first end and a second end located opposite the first end. The cavity can be located under the top end of the body and disposed toward the first end. The curved outlet can be disposed toward the second end of the body and have a banana-shaped vent that traverses at least two sides of the body. Each linear channel can include a bent passage, a third end, and a fourth end, where the third end adjoins the cavity, and where the fourth end adjoins a portion of the banana-shaped vent of the curved outlet. The curved outlet and the at least one non-linear channel can prevent substantially all liquids and solids outside the body from entering the cavity.

Abstract: A chassis includes a base, a number of fans mounted in the base, and an air guiding member. The base includes a bottom wall and a sidewall perpendicularly connected to a side of the bottom wall. The fans are mounted on the bottom wall. The air guiding member includes a fixing portion slidably mounted to the sidewall and a guiding portion pivotably connected to the fixing portion. The guiding portion is pivotable to adjust the direction of airflow from the fans.

Abstract: The furnace of the present invention includes a body of a furnace having a cylindrical shape; a steel shell which is arranged at an inside surface of the furnace; and a lining refractory which is arranged at an inside of the steel shell and includes a plurality of refractory blocks, wherein: each of the refractory blocks includes a hot-face end surface which has a hexagonal shape exposed to a middle of the furnace, and a cold-face end surface which has a hexagonal shape larger than the hot-face end surface, the cold-face end surface being arranged at an outer periphery side of the furnace; the refractory blocks are arranged such that each position of the hot-face end surface is positioned along the radial direction of the furnace at a predetermined reference position; and the refractory blocks are arrayed along the circumferential direction of an inside surface of the steel shell, thereby being stacked in a honeycomb manner.

Abstract: A method for detecting straightness deviations and/deformations in a rotary kiln (1), the rotary drum (4) of which includes bearing rings (6) spaced apart from one another in the axial direction and respectively supported on rollers (7), involves scanning the outer surface area (5) of the rotary drum (4), the bearing rings (6), the rollers (7) and/or the shafts (17) of the rollers (7) in a contactless fashion with the aid of at least one scanning device (12) such that three-dimensional position data regarding the scanned objects is obtained, and evaluating the three-dimensional position data with respect to the occurrence of a deviation of the rotary kiln axis (3) from a straight line, a deviation of the rotary drum (4) from a cylindrical shape and/or a deviation of the rotational axes (8) of the rollers from a line extending parallel to the rotary kiln axis (3). A device for detecting straightness deviations and/or deformations in a rotary kiln (1) is also provided.