Showing papers on "Gas heater published in 1973"

Radiant gas burners

Abstract: A radiant gas heater including a radiant surface element consisting essentially of an inner gas distributing layer and an outer radiating layer of coarser structure than the inner layer, the inner layer being formed of finely pored highly permeable ceramic material of apparent porosity 70-90% and the outer layer of porous ceramic material of pore count 2-12 pores per linear cm and apparent porosity 90-99%.

Directional control of hot gases from an incinerator or the like

Abstract: A directional control apparatus for directing hot flue gases received from a combustion zone, either directly to atmosphere through a main stack or through an auxiliary stack, where heat is recovered from the waste hot flue gases and further utilized as energy. While the directional control apparatus for flue gases is especially suitable in recovering waste heat from an incinerator, it may also be utilized for recovering waste heat from any type of combustion equipment, such as a furnace, gas heater, or the like. The direction of the flow of hot flue gases is controlled by aerodynamic valving rather than by mechanical means through either the main stack or the auxiliary stack provided with the heat exchanger of a heat recovery apparatus.

Heating installation with pump, vaporiser, compressor and condenser - has divided liquid heat-carrier flow in condenser superheating cooling zone

Abstract: The installation has a heat pump with vaporizer under the influence of ambient air via a blower, a compressor, and a condenser for the inducted liquid heat-carrier, selectively influenced by an additional heat source, and here led in a counterflow on the cooling side of the condenser. Part of the flow diverges at the end of the condenser's superheating cooling zone, the remainder, also from this area, being afterwards selectively influenced by the additional heat source, pref. a gas heater, and/or conducted to a heat storage unit connected to the heating installation, and/Or to a domestic water supply unit. The air drawn in by the blower may be taken from a roof space or from a wall gap. The vaporiser may be on the outside, and the condenser on the inside of an external wall. Time lag in heating is minimised, in a site-adaptable assembly.

Portable gas heater

Abstract: A portable electrically operated gas heater for heating gases for use in curing sand molds. An electrical heating element fits tightly inside a bore in a heat exchange tube having sufficient mass for providing a reservoir for storage of a substantial amount of heat. The heat exchange tube is provided with fins on its outside and an inner shell fits around the fins to define a gas heating passage. An insulative outer shell is secured to the outside of the inner shell. An inlet port to the passage is provided for receiving cold gas from a pressurized source through a control valve and an outlet port from the passage is provided for distributing the gas after contact with the heat exchange fins in the passage. An automatic reset timer is connected to the control valve and is operative to open the valve for a predetermined period of time to deliver a burst of gas. Heater control means including a thermostat is provided for controlling the energization of the heating element to maintain a predetermined tempertaure within the gas heating passage. The heater control means is operable independently of the timer for continual energization of the heating element, under control of the thermostat, to store heat in the reservoir prior to delivery of a burst of gas by the timer. This storage of heat permits the use of a lower wattage heating element than would otherwise be necessary in order to instantaneously heat the burst of gas.

Portable heater for an automobile

Abstract: A portable heater for an automobile or the like comprising a first wheeled support having a gas heater mounted thereon. A blower is in communication with the heater and has an elongated flexible tube means extending therefrom. The outer end of the tube means is supported by a second wheeled support having an elongated handle extending therefrom. The outer end of the tube means is adapted to direct the heated air upwardly onto the oil pan of the automobile to assist in starting the automobile during periods of cold weather.

Performance characteristics of an electric-arc gas heater with segmental electrodes

Abstract: Relations are established for the arc length as a function of the electric field intensity in an arc column and for the heat loss in the base spot as a function of the electric current and of the gas flow rate.