A fire safety protection evaluation system includes at least one horizontal collection device and at least one vertical collection device. The at least one horizontal collection device includes a liquid collection pan with a substantially horizontal opening, a first storage container in communication with the liquid collection pan, and a first measuring device to measure an amount of liquid in the first storage container and/or a rate of liquid entering the first storage container. The at least one vertical collection device includes a substantially vertical liquid collection surface extending between a top edge and a bottom edge, a trough located along the bottom edge to collect liquid from the substantially vertical collection surface, and a second measuring device to measure an amount of liquid and/or a rate of liquid collected by the trough.

A method and improved furnace for reducing nitrogen oxide emissions from a furnace having a plurality of primary fuel injectors and a plurality of spaced apart over-fire air injectors positioned above the primary fuel injectors are disclosed. Injection of over-fire air produces zones of cooler combustion gasses containing over-fire air that separate zones of hot combustion gasses containing nitrogen oxides. Reburn fuel injectors inject a reburn fuel into the zones of hot combustion making the effluent combustion gases containing nitrogen oxides partially or totally fuel-rich in order to further reduce nitric oxide.

A soot deposition burner assembly, having at least one burner including a burner face on a first surface of a burner support. The burner produces a flame which extends generally perpendicularly to the first surface. A burner shield includes a first wall extending generally perpendicularly from the first surface surrounding the burner face. The burner shield has a base end with a first surface area facing toward the first surface and a shield face with a second surface area facing away from the first surface. To reduce the buildup of soot material, the second surface area is smaller than the first surface area, and the wall thickness is less at the shield face than the base end. Additionally, air can be directed along an exterior surface of the first wall from the base end toward the shield face to further reduce soot buildup.

Methods and systems are provided for a fire device. In one example, a method for control of a fire device includes receiving a wireless input selecting a first mode, actuating a two-stage valve included in the fire device to open to a second stage, via a first control signal, to flow gas through a main gas channel, actuating a variable valve positioned on the main gas channel downstream of the two-stage valve to open to a first position, via the first control signal, to flow gas through the main gas channel, and receiving a second wireless input to adjust the variable valve responsive to an audio input.

A reactor system includes a pressure vessel having a vessel wall, a feed port at a superior end of the pressure vessel, a permeable liner disposed within the pressure vessel and at least one hydrothermal jet mounted to the pressure vessel. The feed port is configured for feeding a liquid target reactant stream into the pressure vessel. The permeable liner separates the pressure vessel into an internal reaction zone and an outer annular chamber. The hydrothermal jet is mounted external to the reaction zone and is configured to add heated mixture of carrier and oxidizer to the internal reaction zone. A dividing wall portions the outer annular chamber into a cooling zone and an exhaust zone through which by-products of the reaction exit from the reaction zone.

An air handling unit (AHU) for a heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a housing and a combustion heater disposed within the housing. The housing includes a combustion section with a first channel and a second channel. The combustion heater includes heat exchanger tubes and a tube support that supports heat exchanger tubes within the combustion section. The tube support slidably disposed in the first channel and the second channel. The combustion heater configured to be slidably removable from the AHU. An AHU for an HVACR system includes a housing with a fan section and a fan assembly disposed within the housing. The fan assembly including a pair of grooves slidably disposed on a pair of rails of the housing. The fan assembly configured to be both slidably removable from the AHU and liftably removable from the AHU.

The fingerprinting system includes a main body, an air movement source, an ignitor, and a hydrocarbon fuel source. The main body includes a handle. The air movement source includes a fan. The air movement source is coupled to the main body. The fingerprinting system is configured to burn the hydrocarbon fuel source to produce soot containing carbon. The air movement source is configured to direct the soot containing carbon toward a surface to be analyzed for fingerprints.

Burner for a reforming reactor including an oxidizer pipe arranged coaxially within a process gas annular channel, wherein the nozzle has a trumpet-like shape and the lip of the nozzle has a wave or sinusoidal profile.

A pulverized coal and warm nuclear fusion combined glowing flame burner is provided, and relates to the field of cement production. The burner includes: a metal elbow; and a warm nuclear fusion excitation assembly, which includes a metal outer shell, a metal electrode, an insulation connector, and an electrode tip. The metal outer shell located inside the metal elbow is partially provided with an opening. The metal electrode is arranged inside the metal outer shell and is connected to the metal outer shell through the insulation connector. The metal outer shell is provided with a conveying pipe communicated to an inner cavity of the metal outer shell. A conveying channel is arranged in the metal electrode, and one end of the conveying channel penetrates through an outer side wall of a first end of the metal electrode to form an air outlet.