Temperature Controller Applications

Temperature monitoring in a rotary kiln

Taking measurements on rotating equipment, such as a kiln or rotary table, usually requires a complex and expensive system of cabling. Even taking precautions and using specialized equipment doesn’t eliminate cable tangles and breaks. The SureCross Wireless Network eliminates complexities associated with data acquisition from rotating and moving machinery such as a rotating kilns in cement or composting industry. Crucial temperature data is acquired using a thermocouple and transmitted from the FlexPowered SureCross Nodes to a remote Gateway in the plant’s control center.

By Banner Engineering Corp. based in Minneapolis, MINNESOTA (USA).

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Infrared temperature measurement for industrial processing industries

Temperature measurements play critical roles in a number of diverse industrial processes. AMETEK Land provides expert solutions to support product quality, process efficiency, safety and emissions control. Our industry-leading non-contact measurement instruments deliver essential temperature data for industry sectors including metals, non-wovens, paper and plastics. We also supply effective emissions monitors and conveyor belt scanners.

By AMETEK Land based in Dronfield, UNITED KINGDOM.

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Infrared temperature measurement for power generation industries

Thermal power generation involves the combustion of a fuel to raise steam and drive a turbine to produce electricity. AMETEK Land provides the high-performance temperature measurements, emissions monitoring and safety systems demanded by this industry. High-accuracy measurements of temperature and flue gas composition are essential in optimising the combustion process, regardless of fuel used. Our instruments also help control pollution, and provide essential safety monitoring.

By AMETEK Land based in Dronfield, UNITED KINGDOM.

Algae control

Excessive algae growth can throw even the best water treatment processes out of balance. Algae can clog intake screens, fluctuate pH levels, increase chlorine demand, and negatively affect the taste and smell of water. By blocking sunlight within water treatment tanks, you can stop algae growth, reduce chemical usage, and minimize the formation of disinfectant by-products (DBPs). Temperature is better controlled and maintenance associated with algae cleaning is simplified. The results? Better water treatment and lower operating costs.

By Geomembrane Technologies, an Evoqua brand based in Fredericton, NEW BRUNSWICK (CANADA).

Odor Control

AgriAir purifiers will rid the air of volatile organic substances that may be associated with indoor growing operations. Our line of air purifiers is designed to remove odors and sanitize the air by destroying contaminants at the source, not masking them. Available in a variety of models that are designed to suit any commercial operation. Large or small-scale grow, AgriAir has a purifier designed to meet your garden’s demands.Indoor cultivation always gives the grower the upper hand. In indoor growing, you have the full control of the environment for your plants. Light, water, nutrients, temperature and humidity can all be controlled. However, you also need to control the odor of plants growing indoors.

By AgriAir Equipment - a Brand by Omnitec Design Inc based in Mukilteo, WASHINGTON (USA).

Measurement and control systems for the controlling the level - electronically

Discontinuous control is used mainly in smaller steam boilers with low output since the temperature fluctuations in the boiler are fairly great as a result of irregular refilling with water. Continuous control, on the other hand, permits still more economical steam generation with high quality.

By IGEMA GmbH based in Münster, GERMANY.

Water treatment for legionella prevention and control

Whether you find yourself in a hotel bath room, cruise ship cabin, hospital, office building, industrial plant, greenhouse, car wash facility or your own hot tub, the combination of certain temperature levels, stagnant water and the presence of biofilm in water systems is a potential recipe for disaster: an outbreak of Legionnaires’ disease. An outbreak of Legionnaires’ disease is often the result of negligence, having legal repercussions for responsible parties. Because of its chemical and biocidal characteristics, chlorine dioxide is ideal for maintaining good standards of water hygiene. Chlorine dioxide has consistently been demonstrating to be the best molecule for eradicating the causative organism of Legionnaires’ disease.

By Applied Oxidation LLC based in Chattanooga, TENNESSEE (USA).

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Gas monitoring instruments and systems for DeNOx process control

In most combustion process atmospheric nitrogen reacts with oxygen in high temperature conditions to produce nitrogen oxides (NOx). Total NOx production is the sum of nitrogen monoxide NO and nitrogen dioxide NO2. The emissions of these gases are controlled through setting of emission limit values (ELVs) for power plants.

By Gasmet Technologies Oy based in Helsinki, FINLAND.

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Thin-film Measurement Technology for Measurement and Control Industry

Measurement and control is an essential element in determining the effectiveness of products in the Process Control industry. A wide variety of applications are met in this industry by IST’s diverse family of temperature sensors. Additional process control applications are met by unique humidity and flow sensor products offered by IST.

By Innovative Sensor Technology (IST) based in Las Vegas, NEVADA (USA).

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Air monitoring for environmental control agencies

Urban air pollution is a major environmental problem in the developing countries of the world. That`s why to monitor the air quality becomes fundamental to define the air pollution level and take important measures to improve the air quality.

Ahlstrom offers a high performance filter media for Air Quality Monitoring. A filter media made of extremely pure micro-quartz fibers, appropriate for emission control at high temperatures and wherever absolute purity of the filter medium is required.

By Ahlstrom-Munksjö based in Helsinki, FINLAND.

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High quality gas sensor solutions for process control

Gas monitors controlling heat treatment of metals. Endothermic gas is a mixture of carbon monoxide, carbon dioxide, methane and other gases that is required for hardening or carburising of steel. By carefully controlling the amounts of each gas and the temperature in the treatment furnace, the steel surface can be hardened to provide long lasting components such as gears and tools.

By Edinburgh Sensors Ltd based in Livingston, UNITED KINGDOM.

Aerosol and particle technology for process control industry

In order to ensure that an industrial process can be controlled or even improved and optimized continually an analysis of the current situation in real time is necessary. Process data like temperature, pressure but also particle concentration and size distribution of a material flow can supply valuable information and be used for the regulation or the improvement of a process.

By Palas GmbH based in Karlsruhe, GERMANY.

Emission control & air dedusting for calcination processes

In calcination processes, solid intermediates and products are regularly handled in fine powder form. (ex: kaolin or metakaulin). There is a need to separate these very fine powders from the exhaust streams of calciners, fluid bed dryers or incinerators, often at critical temperature conditions

By Advanced Cyclone Systems, S. A. based in Porto, PORTUGAL.

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Carbon Dioxide Sensing for Controlled Environment Horticulture

Introduction: Controlled Environment Horticulture is a vast topic, and has been utilised in varying forms for centuries. Excavations of the city of Pompeii showed remains of early greenhouses dating back to AD79; and the modern greenhouses are thought to originate in the thirteenth century in Italy. Most people recognise the use of greenhouses for growing flowers and vegetables, whether in their own garden, at garden centres or on a commercial basis. Indeed most people will be conversant with irrigation systems that are used to supply water to such greenhouses and the use of heaters to control the temperature and thereby extend the growing season.

By Edinburgh Sensors Ltd based in Livingston, UNITED KINGDOM.

Cooling Tower, algae and biofilm control

“Efficiently lowers algae, biofilm formation, bacterial counts and chemical consumption.” When temperatures are high, for example in cooling towers, a matrix of different microorganisms such as bacteria, fungi, EPS and algae can grow very rapidly. The disadvantages of biofilm formation in cooling towers can be enormous. Therefore water used in cooling towers needs frequent treatment and chemical shocks to keep levels of micro-organisms to a minimum.

By LG Sonic based in Zoetermeer, NETHERLANDS.

Air pollution control (APC) equipments for waste incineration

Waste incineration is a complex area. The mix of waste, moisture content, temperature of the waste, surrounding air and a variety of other factors interact and affect which residues are formed. Combustion entails often a gas consisting of heavy metals, sulfur oxides, chlorides, dioxins, etc. It is extremely important with a proper handling of the gas and the task often requires a mixture of wet and semi-dry treatment. EnviBAT offers equipment that brings particle levels down to extremely low levels, which guarantees a total separation of dioxins and wet purification that separates contaminants found in the gas phase.

By Envibat AB based in Skellefteå, SWEDEN.

Emission control & air dedusting for steel and ferrous alloys

teel and ferrous alloys production happens in industrial manufacturing processes which involve high temperature exhaust streams, often at more than 900 ºC. Typically, the gas flows into a gas conditioning tower to cool down to approximately 200 ºC, before entering into an ESP. These flue gases from steel or ferrous alloys kilns are also very maintenance demanding for bag filters and the very small size of the particles limit the use of usual dedusters such as regular cyclones and multicyclones as pre-separators. Bag filter failure is consequently a very common problem for clients in this industry. Client`s needs include a very robust dedusting system, either serving as end-stage collector avoiding the need to cool down flue gases, or strongly minimizing the loads of aggressive material to bag filters.

By Advanced Cyclone Systems, S. A. based in Porto, PORTUGAL.

Gas control equipment for Life Science

QCAL introduces CO2Control for incubators and test chambers. These gas dosing units can be adapted to nearly every incubator or test chamber. The user can set a CO2 concentration up to 30% vol. CO2. The CO2Control measures the actual concentration and adds CO2 from a CO2 gas container. The NDIR CO2-sensor has an excellent long-term stability, which provides years of stable CO2 measurement. Also the other parts as the sample gas pump, valve and fittings are designed for maintenance-free use over years. Humidity effects are compensated upto 95% rh at 37°C, also temperature effects are automatically corrected upto 50°C. The other way to control gas atmospheres in any life science equipment is to use gas mixing units GMS_2CH ( 2 channels ) or GMS_3CH ( 3 channels ) for N2, O2 and CO2. They can match flowrates up to 80 liters per minute with a concentration range up to 100 Vol% O2 and/or CO2.

By QCAL Messtechnik GmbH based in Oberostendorf, GERMANY.

Headworks Odor and Corrosion Control Using Hydrogen Peroxide

Hydrogen Peroxide typically controls odors and corrosion at treatment plant headworks by direct oxidation of hydrogen sulfide (H2S) within the wastewater. In the direct oxidation mode, H2O2 is applied to the wastewater 5-30 minutes prior to the point where the odors are being released, generally as the wastewater line enters the plant boundary. The efficiency of hydrogen peroxide treatment depends upon the available reaction time, the level of iron in the wastewater (reaction catalyst), wastewater pH and temperature, and the initial and target levels of H2S odor. Under optimal conditions, effective dose ratios are 1.2 - 1.5 parts H2O2 per part dissolved sulfide, and can be reliably estimated through beaker tests. H2O2 + H2S → S0 + 2H2O Frequently, control of odors through the primary clarifiers is wanted. In such case, the mechanism of control is both direct oxidation of H2S (as it rises from the solids blanket), and prevention of odor generation (by supplying dissolved oxygen). Control is typically achieved with a booster dose of 1-2 mg/L H2O2 added to the clarifier influent. Higher doses or alternate modes of addition may be required in cases where: 1) hydraulic retention times are > 2-3 hours; 2) solids blanket depths are > 1-2 feet; 3) soluble BOD levels are > 200-300 mg/L; or 4) waste activated sludge is co-settled with the primary solids. 2H2O2 → O2 + 2H2O

By USP Technologies based in Atlanta, GEORGIA (US) (USA).

Force Main Systems Sulfide Odor Control with Hydrogen Peroxide

Force main systems are typically high sulfide odor generators due to septicity conditions related to full pipe flow and a greater anaerobic slime layer (biofilm) thickness. Primary factors that influence sulfide loading generation in a force main include sewage temperature, BOD, retention time, pipe size and flow. Gaseous hydrogen sulfide (H2S) release at the force main discharge is usually the main concern related to odor and corrosion control needs; however, corrosion problems within the pipe can be of a concern (e.g. "crown cutting") at locations where air pockets can lead to concentrated H2S gas build up. Some basic considerations for assessing an appropriate sulfide odor treatment method for force main systems include: Retention time / duration of control Pump station type / cycling (e.g. vfd; start/stop, etc). Force main injection tap points, if any (e.g. air relief valves) Existence of intermediate re-lift stations or in series pump stations Manifold force main systems

By USP Technologies based in Atlanta, GEORGIA (US) (USA).

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