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  • Heat Pump Common Questions and Answers Goodman

    The SEER (Seasonal Energy Efficiency Ratio) measures the efficiency of a heat pump in cooling mode. HSPF (Heating Season Performance Factor) measures the efficiency of a heat pump in heating mode. The higher the SEER and HSPF number, the more efficient

  • Best Practice for Identifying Leaks in GC and GC/MS Systems

    Carrier Gas Considerations High quality carrier and detector gases of known purity are essential for obtaining optimal results in gas-phase analysis. Agilent specifies carrier and detector gas purity of at least 99.9995% (5.5 nines). Zero-grade air is recommended for flame detectors [1]. Inline indicating gas

  • Refrigeration system: problems, causes and solutions

    Jun 15, 2018· Take off oil mixture dirt. Less opening for the expansion valve or superheat very low: Adjust the expansion valve opening and ensure temperature sensor attached properly to the evaporator outlet. Evaporator cooling capacity lowered by dust and frost: Check fan operation working normal. Remove dust by soft brush and carry out defrosting. 4.

  • Basic PECVD Plasma Processes (SiH based)

    GAS FLOW (N2O/SIH4 RATIO) - (High rate process) 0 50 100 150 200 250 300 350 400 450 15 25 35 45 55 65 75 85 GAS FLOW (N20/SIH4 RATIO) 1.455 1.46 1.465 1.47 1.475 1.48 1.485 1.49 1.495 15 25 35 45 55 65 75 85 if seen as silica dust in showerhead pattern on wafers then

  • Failure in Spec: What Happens When a Mass Airflow Sensor

    Both fuel trims are now positive, but the O2 sensor shows a lean air/fuel ratio. Its tempting to think these symptoms indicate a vacuum leak or low fuel pressure, but this is an article about mass air flow sensors (MAF), so at this point you already know thats the problem to be considered.

  • CECO - Dean Pump - Chemical Process and High Temperature

    Dean Pump by CECO Environmental supplies high-quality chemical process and high temperature metallic centrifugal pumps. are technologies used to enhance the quality of air released from industrial and commercial processes by collecting dust and other impurities from air or gas.

  • Flash Point - Engineering ToolBox

    See Autoignition temperature and flash point of different hydrocarbons and Flash Point - Fuels for measured values of flash point. The Flash Point is not the same as the Auto-Ignition Temperature. The Auto-Ignition Temperature is the minimum temperature required to ignite a gas or vapor in air without a spark or flame present.

  • Basic Cyclone Design - ASME Met Section

    A device that separates particulate from gas (fluid) by centrifugal force Works simply by the kinetic energy of the incoming mixture (flow stream) and the geometry of the cyclone. How Cyclones Work: Nomenclature Outlet Pipe/Vortex Finder. Gas Viscosity Dust Load. Cyclone

  • Air Atomizing Nozzles - Products - EXAIR Corporation

    Its high powered vacuum is able to lift liquids up to 15 feet vertical and fill a 55 gallon drum in less than 85 seconds. With the simple turn of a knob, the same stainless steel pump quickly empties the drum. The High Lift Chip Trapper has the extra power you need to

  • Fuel and Energy Conversion and Equivalence Chart

    137 cubic feet of natural gas, 1.5 gallons of propane, 17.5 pounds of air-dried wood, 17 pounds of pellets, a gallon of kerosene, or 10 pounds of coal. One million Btus is the heat equivalent of approximately 7 gallons of No. 2 heating oil or kerosene, 293 kWh of electricity, 976 cubic feet of natural gas

  • Fox Solids Conveying Eductors Fox Venturi Products

    Fox Eductors, also referred to as jet pumps, enable the use of low pressure air (below 14 psig or 1 bar) to be used to move powders, pellets, and bulk solids with no moving parts. These venturi eductor systems can be used to convey product at up to 15 tons per hour over distances up to 500 feet.

  • Multifunction pump for handling gaseous liquids in process

    Pumping liquids with a high gas content can be problematic, causing sharp losses in head and flow or even total cessation of pump flow.

  • Standard Procedures for Tank Cleaning, Purging and Gas

    After cargo discharge/tank cleaning, whenever it is necessary to Gas free an empty tank containing hydrocarbon gas mixtures or a mixture of I.G. + H.C. gases, it shall first be purged, using inert Gas, until the H.C. (hydrocarbon) content reaches to below the critical dilution line or H.C. concentration in the tank atmosphere is less than 2% by

  • Chapter 2 Selective Catalytic Reduction

    caused by high-dust levels and catalyst deactivation by high sulfur trioxide (SO 3) concentrations 3 The term industrial boilers as used in the Control Cost Manual includes industrial, commercial, and institutional (or ICI) boilers, unless otherwise noted.

  • The Seven Most Common Hydraulic Equipment Mistakes

    A vane pump requires a higher minimum viscosity than a piston pump, for example. This is why the type of components used in the system also influences its safe maximum operating temperature. Apart from the issue of adequate lubrication, the importance of which cannot be overstated, operating temperatures above 82 degrees Celsius damage most

  • High Temperature Pump HYDRODYNE TEIKOKU

    The pumps are designed for high temperature fluids up to 400°C. The pump and motor are separated thermally by an adaptor which prevents heat transfer from the pump to motor area. In these pumps an independent circulating system with cooling jacket and heat exchanger is provided.

  • Cyclone Separators Selection Guide Engineering360

    Dust conditions at the inlet of the cyclone can include material type, specific gravity, bulk density (lb/ft3), dust load (lb/hr or grains/ft3 air), and particle size distribution. Sizing, densities, and loads are needed to determine the required capacity and design specifications for sufficient capture.

  • Recovery boiler - Wikipedia

    Recovery boiler is the part of Kraft process of pulping where chemicals for white liquor are recovered and reformed from black liquor, which contains lignin from previously processed wood. The black liquor is burned, generating heat, which is usually used in the process of making electricity, much as in a conventional steam power plant.The invention of the recovery boiler by G.H. Tomlinson in

  • Understanding vented gas explosions - OSTI.GOV

    explosion of dust and gas explosions is discussed. The empirical equation by Wirkner- Bott et al. relating the internal and external peak pressures in vented dust explosions is shown to be valid for gas explosion tests in 30 m3 and 550 m3 chambers. However, the difficulty of predicting the internal peak pressure in large chambers remains. Methods

  • Effects of Air on Hydraulic Systems Hydraulics & Pneumatics

    Foaming affects system performance because fluid entering the pump is no longer solid but an air-oil mixture, which causes cavitation and also results in a spongy system. Temperature Effects A temperature rise in a system containing air affects the bulk of modulus of the air-oil mixture. The bulk modulus, which may be much lower than

  • Gas scrubbing - general EMIS

    The liquid-gas ratio (L/G) in a scrubber is the relationship between the scrubbing liquid flow rate and the gas stream flow rate. For dimensioning purposes, and to evaluate the workings of a scrubber, it is important to know how much liquid is required per m³ to realise the required residual emission.

  • 3.2 Natural Gas-fired Reciprocating Engines

    A compressor in storage service pumps gas from a low-pressure storage field (500 - 800 psig) to a higher pressure transmission pipeline (700 - 1000 psig) and/or pumps gas from a low-pressure stoichiometric ratio, combustion temperature, and residence time at the combustion temperature. insufficient residence time at high temperature to

  • How to Fix Automotive Engine Black Smoke From Tailpipe

    Nov 29, 2020· Melted engine coolant temperature sensor. Subsequent Damage. Black smoke means increased exhaust temperature and particulates. This can have a negative effect on particular parts of the exhaust system such as the catalytic converter. Over possessing fuel will cause the catalytic converter to overheat and break apart clogging the exit port.

  • Cement Systems and Additives - Halliburton

    High-resolution images for real-time wellbore stability. Explore. Well Construction. Back; including accelerators, dispersants, fluid loss agents, gas migration additives, latexes, retarders, and weighting agents. In addition to mitigating free fluid and reducing fluid loss, operators achieve a long-term tight annular seal and cement-sheath

  • FAQ Rinnai

    2. The circulation pump houses a temperature sensor and a check valve that prevents water from entering the return line. The pump moves ambient-temperature water sitting in the line back to the tankless water heater. The sensor lets the pump know when hot water has arrived at the farthest tap and shuts off the pump so energy isnt wasted.

  • Steel - Basic oxygen steelmaking Britannica

    Off-gas emerges from the converter mouth at about 1,650° C (3,000° F). It consists of about 90 percent carbon monoxide and 10 percent carbon dioxide, and it also contains ferrous oxide dust, which forms in the high-temperature zone of the oxygen jet. Two off-gas systems are in use: the full combustion and the suppressed combustion.

  • Pumping High Temperature Liquids - Pump School

    Pumping High Temperature Liquids . High Temperature Applications . High temperature applications can be found in nearly every industry, making an understanding of how to handle them critical. Use of a standard or stock pump on a high temperature application may lead to leaking seals, stalled drives, or even break the pump.

  • MX6 IBrid® Six Gas Monitor Gas Detectors Industrial

    The MX6 iBrid ® is the most adaptable six-gas monitor on the market. With hundreds of possible sensor combinations and a robust list of available configuration settings, the MX6 iBrid gas detector is ready to monitor oxygen, toxic and combustible gas, and volatile organic compounds (VOCs).. Talk to an Expert

  • A look at air-to-water heat pump systems - HPAC Magazine

    May 31, 2018· Heat pumps that deliver heat using forced air distribution systems are saddled with many of the comfort compromises as other forced air distribution systems. These include potential for temperature stratification, drafts, building pressurization that increases air leakage, the sound of forced air delivery, and dust accumulation within ducting.

  • 4 Most Common Heat Pump Problems & What To Do HVAC

    Sep 27, 2019· Like all appliances, your heat pump may sometimes have trouble working correctly. Maybe it wont turn on, or it no longer heats up appropriately. Alternatively, maybe your heat pump doesnt cool down after use, or it runs constantly. With that in mind, below are some of the most common heat pump problems, as well as

  • Combustible Gas Detection Fundamentals - Scene7

    range of all flammable gases and vapors will vary with temperature and pressure. Upper Explosive Limit (UEL) or Upper Flammable Limit (UFL). The maximum concentration of gas in air that will combust. Any higher percentage of combustible gas or lower amount of oxygen in the mixture of the two, and the mixture will be too rich to sustain

  • Scrubber Basics - Engineering ToolBox

    t 2 = final dry bulb temperature (o C) t w = initial wet bulb temperature (o C) Scrubber Efficiencies. Typical nozzle scrubber efficiencies. 60-70 % with one bank of nozzles downstream; 65-75 % with one bank of nozzles upstream; 85-100 % with two banks of nozzles; Note! Be aware that low temperature scrubbers can be a potential source for the

  • How Do I Work Safely with - Flammable and Combustible

    Sep 20, 2019· The oils in some wastes and rubbish can slowly react with oxygen in the air. This reaction creates heat that can build up over time if the wastes are left undisturbed. When the heat level in a "self-heating material" is high enough (i.e., when the temperature reaches the autoignition temperature), a


    A centrifugal pump is not recommended, because as the oil viscosity increases, the efficiency of the pump drops sharply and the horsepower required increases. Light fuels are best pumped with centrifugal or turbine pumps. When higher pressures are required, piston or diaphragm pumps should be used. Storage Temperature and Pumping Temperature

  • Vacuum Pumps Common Problems and Troubleshooting

    o Variation in seal water temperature If temperature of the seal water is too high, the pump may operate at a reduced capacity. The higher the vacuum level, the more important it is to have cool water in sufficient quantities. o Variation in pump rpm If rpm is low, pump will run at a lower capacity. Check motor and V-belt.

  • How to Test Flash Point - Machinery Lubrication

    The flash point temperature of an oil corresponds roughly to a vapor pressure of 3-5 mm Hg. When a small flame (ignition source) is applied to the oils surface this vaporous mixture will burn momentarily and then extinguish if the critical temperature has been reached.

  • Packed Bed Wet Scrubbers - Acid Gas-Odors-Fumes Monroe

    A Packed Bed Scrubber is a wet scrubber that removes acids, soluble gasses, chemicals, fumes, and odors. Contaminated gas flows through a specially designed packing media that is wetted with recirculated liquid. The liquid solvent absorbs the gas pollutant by physical or chemical means.

  • STIHL BR 500 550 600 Product Instruction Manual

    4-MIX Engine 15 Fuel 15 Fueling 16 Winter Operation 18 Information Before You Start 19 fuel pump Safety Precautions and Working Techniques Because a blower is gasoline-powered and and high dust conditions. In order to reduce the risk of shock from static

  • CHEM 1411 Chapter 12 Homework Answers

    FALSE. The temperature must double, but on the Kelvin scale. In this case temperature rises from 373 K to 473 K. (b) If a sample of gas is heated from 0 oC to 273 oC, the volume will double. TRUE. The temperature on the Kelvin scale doubles from 273 K to 546 K. (c) If a sample of gas

  • Grouting MasterFlow 648 - Master Builders Solutions

    Consistency (Fill Ratio) 73° F (23° C) 4-Bag Mix (6.55:1) 4,700 (32) 3-Bag Mix (4.92:1) 4,300 (30) *Cured 24 hours at room temperature, post cured 16 hours at 140° F, and conditioned 24 hours at test temperature. Flow Times and Bearing Area ASTM C1339 4-Bag Mix (6.55:1) Back of Box Full Plate Contact Bearing Area

  • 2.6 Gas cleaning and cooling

    2.6.1 Cleaning dust from the gas. The major problem in producing an engine quality gas is that of dust removal. The amount of dust that is present in the producer gas at the outlet of the gasifier depends on the design of the equipment, the load of the gasifier and the type of fuel used.

  • Chapter 3: Review of Basic Vacuum Calculations

    3. Temperature: The temperature of a gas is a function of its kinetic energy, that is, how vigorously the gas atoms are vibrating. Temperature must be specified in terms of an absolute temperature scale. We will use the kelvin scale (K=°C + 273). 4. Amount: The number of gas atoms in a volume (can be in terms of atoms or moles).

  • Know How - TRIUMF

    2.1 Pump principles and vacuum pump performance data 26 2.1.1 Classification of vacuum pumps 26 2.1.2 Pumping speed and throughput 26 2.1.3 Ultimate pressure and base pressure 27 2.1.4 Compression ratio 27 2.1.5 Pumping speed of pumping stages connected in series 27 2.1.6 Gas ballast 28 2.1.7 Water vapor tolerance / water vapor capacity 28

  • Heat Capacity Ratio - an overview ScienceDirect Topics

    where ρ is the density of the gas and γ is the heat capacity ratio C p /C v, equal to 1.666 6 ¯ (5/3) for monatomic gases, 1.4 (7/5) for diatomic gases ignoring vibration, and 1.2857 (9/7) for diatomic gases at high temperatures where vibration contributes Nk to the heat capacity. These equations imply that an expansion carried out with a

  • Vortex tube - Wikipedia

    The vortex tube, also known as the Ranque-Hilsch vortex tube, is a mechanical device that separates a compressed gas into hot and cold streams. The gas emerging from the "hot" end can reach temperatures of 200 °C (392 °F), and the gas emerging from the "cold end" can reach 50 °C (58 °F). It has no moving parts.. Pressurised gas is injected tangentially into a swirl chamber and

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