Products/Services for Annubar Calculation

Math Calculation Software  (39 companies)Math calculation software is used to perform mathematical calculations. These programs provide general core calculations as well as graphical analysis that can be used in science, engineering and technology. Math calculation software is used... Learn More

Computational Fluid Dynamics Software (CFD)  (84 companies)Computational fluid dynamics software (CFD) is used for the calculation of flow parameters in fluids, and for the design and simulation of the behavior of fluidic systems. CFD is also used to simulate fluid mechanics. Computational fluid dynamics... Learn More

CPU Chips  (59 companies)CPU chips or central processing unit chips are used in digital computers and are the semiconductor component where most calculations take place. Specifications. Specifications include clock speed, internal register size, data input/output (I/O) bus... Learn More

No Image AvailableDigital Counters  (195 companies)How to Select Digital Counters. Digital counters are electronic devices that perform a variety of counting functions. They may count single actions, provide totalizing, or perform other calculations. In addition to the number and type of functions... Search by Specification  Learn More

No Image AvailablePower Factor Correction (PFC) Products  (77 companies)Power factor correction (PFC) products are used to configure and correct the power factor in power systems. Learn More

No Image AvailableCivil Engineering and Architectural Software  (129 companies)...elements. It provides architects with a toolset to design buildings, display measurements, perform stress calculations using finite element analysis, align 3D objects to a vector, and produce structural analysis data. Architects that specialize... Learn More

No Image AvailableFlow Orifices and Flow Restrictors  (129 companies)Flow orifices and flow restrictors contain precisionmachined holes and filters or screens to restrict flow and reduce pressure. They are available as standalone devices and in kits, assemblies, restrictors, and restrictor valves. Search by Specification  Learn More

No Image AvailableAntenna Design Software  (10 companies)...software include telecommunications and commercial satellites, military communication systems, and consumer products such as cars, radios, and television (TVs). Antenna designers use antenna software to perform complex calculations and postprocessing... Learn More

No Image AvailableHardness Testers  (237 companies)Hardness testers measure a material's resistance to indentation. This calculation is determined by measuring the permanent depth or projected area of the indentation. Hardness testers measure a materials' resistance to indentation. Hardness... Search by Specification  Learn More

No Image AvailableFlow Meters  (1665 companies)Flow meters (flowmeters) and flow sensors are devices used for measuring the flow rate or quantity of a moving fluid or gas. Search by Specification  Learn More
Product News

Micromeritics
Density Calculations on Small Amounts of Sample For those who have a need to analyze a very limited amount of material, Micromeritics' AccuPyc II 1340 1cm3 Gas Displacement Pycnometer performs fully automatic, highspeed, highprecision volume measurements and density calculations on a wide variety of powders and solids. The AccuPyc features improvements in design that allow the volume of small amounts of sample to be accurately detected and measured with enhanced reliability to within a fraction of a microliter. A novel manifold design... (read more)Browse Pycnometers Datasheets for Micromeritics 
IHS ESDU
Calculation of wingfuselagenacelle combinations Product Announcement from IHS ESDU – New. Aerodynamics. ESDU 13009. This methodology describes the construction of input files for the program ESDUpac A1309, which combines the prediction methods of three individual ESDU Data Items (ESDU 76015, ESDU 77012 and ESDU 78013) to evaluate the chordwise position of the aerodynamic centre of wingfuselagenacelle combinations at subsonic speeds. The nacelles can be mounted either on pylons below the wings of wingfuselage combinations of... (read more)Browse Modeling and Simulation Software Datasheets for IHS ESDU 
IHS BRE Press
Conventions for Uvalue calculations (BR 443) ISBN: 9781860819247. Author: B Anderson. Publications date: 12 July 2006. Learn how to calculate Uvalues for different construction elements: roofs, walls, floors, basements, windows and doors using data relevant to typical UK constructions. Particular guidance is given on thermal conductivity of materials, and on various issues commonly arising when calculating Uvalues and how they apply to different construction types. Features & benefits: indicates the methods of calculation... (read more)Browse Technical Books Datasheets for IHS BRE Press 
American Petroleum Institute (API)
API Standard 530 Calculation of Heatertube This standard specifies the requirements and gives recommendations for the procedures and design criteria used for calculating the required wall thickness of new tubes and associated component fittings for fired heaters for the petroleum, petrochemical, and natural gas industries. These procedures are appropriate for designing tubes for service in both corrosive and noncorrosive applications. These procedures have been developed specifically for the design of refinery and related fired heater... (read more)Browse Standards and Technical Documents Datasheets for American Petroleum Institute (API) 
E+E Elektronik
Humidity calculator Uniquely, the humidity calculator also includes measurement uncertainties in the calculation. This is helpful for obtaining realistic and reliable overall uncertainties based on the specification of the measuring device. The simple and intuitive operation of the humidity calculator facilitates the work. The resulting humidity measurements are displayed immediately, subject to changing ambient conditions. Simulations and calculations can be copied from the humidity calculator to Excel... (read more) 
IHS ESDU
ESDU 74029  Fluid Mechanics in Straight Pipes ESDU 74029 gives methods of applying the friction factor data of ESDU 66027 to the case of isothermal or adiabatic flow of a gas. The procedure to be followed is indicated in each case by a calculation flowchart, and data are provided in graphical form for gas specific heat capacity ratios from 1 to 1.67 to assist in the calculations. A program of the method is provided (ESDUpac A7429). (read more)Browse Standards and Technical Documents Datasheets for IHS ESDU 
IHS ESDU
Design analysis methods for ducted flow systems IHS ESDU Product Announcement. Fluid Mechanics, Internal Flow. ESDU 03012: Computer Program for the calculation of mean value properties for nonuniform compressible flows. Design and performance analysis methods for ducted flow systems often involve an explicit or implicit assumption that the flow is uniform across a section. In practice, some degree of spatial nonuniformity is present in all real ducted flow systems and, consequently, it is often necessary to formulate a set... (read more)Browse Standards and Technical Documents Datasheets for IHS ESDU 
IHS ESDU
Transonic Aerodynamics Method to determine surface finish required to minimise local skin friction in the presence of a turbulent boundary layer. ESDU 12006 uses the Nikuradse criterion, with compressibility corrections, to determine the limiting surface roughness for an aerodynamically smooth surface in the presence of a turbulent boundary layer. The accompanying program gives the option of basing the calculation on local skinfriction coefficient and flow conditions (determined, for example, by using the VGK or VFP... (read more)Browse Standards and Technical Documents Datasheets for IHS ESDU 
IHS ESDU
Stressstrain curves for metallic materials a convenient method for accounting for the behaviour of a material beyond its elastic range, for example in buckling calculations. The method allows simple calculation of tangent and secant modulus and Poisson's ratio but calculation of stress at a given strain or at a ratio of stress to tangent modulus is less easy. For that case approximate equations are given or an exact solution may be obtained using the Fortran program provided. Tables list the two constants that define the compressive... (read more)Browse Standards and Technical Documents Datasheets for IHS ESDU 
Remcom (USA)
XFdtd BioPro EM Simulation XFdtd BioPro is a specialty version of XFdtd, developed to calculate the biological effects of electromagnetic fields. It provides users with a bundled collection of important biomedical EM calculation capabilities such as Specific Absorption Rate (SAR) analysis, VariPose ® Mesh Repositioning, and Hearing Aid Compatibility (HAC). BioEM analyses include imaging devices and MRI coil design and tuning, SAR and field analysis, implantable devices (pacemakers, diagnostic... (read more)

Large scale steam flow test: Pressure drop data and calculated pressure loss coefficients
CALCULATED ANNUBAR MASS FLOWRATE .

Combined Silencers and UreaSCR Systems for HeavyDuty Diesel Vehicles for OEM and Retrofit Markets
The massflow in the exhaust was measured by means of a Mass ProBar™, which uses the annubar principle and calculates the massflow by compensating for the temperature variations in the exhaust.

Catalytic fabric filtration for simultaneous NO sub x and particulate control
Some difference between the flue gas flow rates calculated using the annubar and the orifice plate is still evident.

CO2 Capture by Absorption with Potassium Carbonate
The stripper CO2 flow calculation uses an annubar pressure drop flowmeter that gives the volumetric flow rate of the gas leaving the condenser.

Carbon dioxide absorption into piperazine promoted potassium carbonate using structured packing
The CO2 gas flow was based on the measurements of CO2 gas concentration, the gas flow rate measured by the annubar , and the calculated water content.

http://dspace.mit.edu/bitstream/handle/1721.1/60583/EL_TR_1984_020.pdf?sequence=1
Flow was calculated using equations in the Annubar handbook [1]: .

Development of a Wetbased NDIR and Its Application to Onboard Emission Measurement System
(4) where, Qexh Exhaust gas flow rate[L/min] K Annubar coefficient N Unit conversion factor D Internal diameter of exhaust pipe[mm] Annubar coefficient(K) is calculated by a slope of Figure 6.

A comparative study of flow rate characteristics of an averaging Pitot tube type flow meter according to H parameters based on two kinds of differential pressu...
The other H parameter (HΔP2) which is used in a typical Annubar ® type flow meter was calculated based on the difference between upstream and downstream pressure at the developed flow meters.

Simulation of a Turbocharged SIEngine with Two Software and Comparison with Measured Data
The intake air mass flow was measured with an Annubar [4] as well as calculated from fuel flow measurements (AVL fuel scale [5]) and lambda measurements (ETAS LA3 Broad band [6]).

Physical Properties of Mucuna (Velvet) Bean
With the airflow on, the pressure drop across the annubar was recorded and subsequently used to calculate airflow rate, and the pressure drop across the grain sample was determined.