摘要:
The invention relates to a device (1) for determining the combustion value of a fuel. The device (1) comprises a fuel inlet (40) for supplying the fuel to be measured to the device (1). A gas inlet (50) is provided for supplying an oxygen-containing gas to the device (1). The device (1) further comprises a combustion unit connected to the fuel inlet (40) and the gas inlet (50), which combustion unit is provided with a combustion chamber (7) for combusting the fuel to be measured therein. A gas outlet (8) connected to the combustion chamber (7) makes it possible to discharge the combusted gas. The device (1) according to the invention comprises a flow measurement unit (14), preferably of the Coriolis type, disposed between the fuel inlet (40) and the combustion chamber (7).
摘要:
A system for detecting pollution by a poisonous material for an air exhauster of a vehicle may include a temperature sensor provided to the flow line of an exhaust gas and having a catalyst material that causes an exothermic reaction with a pollution material in the exhaust gas, and a controller which stores a standard temperature value of the temperature sensor and operates in such a manner that the exhaust gas may be heated under control of an engine control unit when the temperature value drops by a predetermined amount from the standard temperature value, and that the catalyst material may be determined to have deteriorated when a measured temperature value after heating may be less than the standard temperature value, so that the standard temperature value may be replaced with the measured temperature value, and to a detection method using the same.
摘要:
A system for sensing SOF (soluble organic fraction) of a diesel engine, may include a combustion element including a porous ceramic structure supported with a catalyst material which causes a combustion reaction of the SOF in exhaust gas of the diesel engine, a comparative element including a porous ceramic structure supported with a stable material which does not cause a combustion reaction of the SOF, and a detecting unit detecting a temperature of the combustion element and a temperature of the comparative element and determining an amount of the SOF in the exhaust gas using a temperature difference between the combustion element and the comparative element.
摘要:
Apparatus for detecting a flammable atmosphere within a compressor during operation thereof is provided. The apparatus comprising a test chamber which is selectably connected between the compressor and an exhaust duct of the compressor using isolation device; an ignition device which is located within the test chamber for igniting any flammable fluid mixture present therein; and sensor associated with the test chamber for monitoring a parameter indicative of combustion within the test chamber and for outputting a signal indicative of the parameter to a controller.
摘要:
The present invention relates to a device and a method for the detection of hydrogen in a gas volume by means of an exothermal catalytic recombination of hydrogen and oxygen present in the gas volume into water. The amount of energy that is released during such an exothermal catalytic recombination is measured in the form of a temperature difference and is compared with a stored limit value. When a corresponding limit value is exceeded an appropriate signal is output.
摘要:
An apparatus for monitoring the concentration of an oxidative gas or vapor includes a chemical substance which reacts with the oxidative gas or vapor to produce a heat change. A temperature probe is coupled to the chemical substance and adapted to respond to the heat change. The temperature probe can be coupled to the chemical substance by a carrier, and can include a reference temperature probe. Additionally, a method of using the apparatus is described, as well as a sterilization system which utilizes the apparatus.
摘要:
A method and apparatus for detecting changes in the composition of a stream of gas. In particular the method comprises the step of disposing a thermometer in the gas stream, in contact with or downstream of a catalyst so as to detect changes in the temperature of the catalyst or of the gas shortly after it leaves the catalyst, such changes being a function of the amount of gas which reacts under the influence of the catalyst.
摘要:
A method and system for determining changes in the catalytic activity of reforming catalyst where an outlet temperature of the catalytic reactor is measured and a temperature approach to equilibrium calculated based on the measured outlet temperature. The temperature approach to equilibrium is compared to an empirical model-based temperature approach to equilibrium calculated for the same operating conditions, the comparison showing changes in the catalytic activity of the reforming catalyst.
摘要:
A device for detecting leakage of gas of a fuel cell vehicle includes a gas sensor configured to determine whether gas leaks based on a change in a temperature by a catalyst reaction and a vehicle control unit including a comparator configured to read a variation in temperature from the gas sensor, and configured to control a fuel cell vehicle. A power application state is maintained in the comparator in a power off state of the fuel cell vehicle. Power of the gas sensor is switched at regular periodic intervals. The comparator determines the variation in temperature measured by the gas sensor, and, when the variation in temperature exceeds a predetermined value, the power of the gas sensor is switched to normal power.
摘要:
A method monitors the concentration of an oxidative gas or vapor during a sterilization process in a sterilization chamber. A sensor formed of a chemical reactive with the oxidative gas or vapor coupled to a temperature probe is positioned inside of an enclosure containing an item to be sterilized. The enclosure is defined by a barrier impermeable to contaminating microorganisms and having at least a portion thereof which is permeable to the oxidative gas or vapor. The sensor is electrically connected through the barrier to contacts located exterior of the enclosure and connected to a control system thereby.