LLNL Flow Charts

These flow charts help scientists analysts and other decision makers to visualize the complex interrelationships involved in managing our nation x2019.

Heating equipment - Vector stencils library

The vector stencils library "Heating equipment" contains 42 symbols of regenerators, intercoolers, heaters, and condensers.
Use these shapes for drawing cooling systems, heat recovery systems, thermal, heat transfer and mechanical design, and process flow diagrams (PFD) in the ConceptDraw PRO software extended with the Chemical and Process Engineering solution from the Chemical and Process Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-chemical-process

Heat exchanger 3

Heat exchanger 1

Heat exchanger 2

Tube bundle, floating head

U-Tube bundle

Tube bundle

Shell and tube

Kettle reboiler

Plate type

Finned tube

Double pipe type

Oil burner

Boiler

Fired heater

Cooling tower 2

Cooling tower 1

Cooling tower 3

Condenser

Automatic stoker

Refrigerator

Direct refrigerator

Indirect refrigerator

Evaporative condenser

Condenser (air cooled)

Oil separator

Chilling evaporator

Air cooling evaporator

Extractor hood (slot)

Extractor hood (open)

Autoclave (propeller)

Autoclave (anchor)

Autoclave (helical)

Autoclave with motor (helical)

Autoclave with motor (anchor)

Autoclave with motor (propeller)

Fan blades horizontal

Fan blades vertical

Fan blades (4)

Triple fan blades

Air-blown cooler

Condenser

Heater / Cooler

Used Solutions

Engineering >

Chemical and Process Engineering

Workflow diagram - Weather forecast

This work flow chart sample was redesigned from the picture "Weather Forecast" from the article "Simulation Workflows".
[iaas.uni-stuttgart.de/ forschung/ projects/ simtech/ sim-workflows.php]
"(1) The weather is predicted for a particular geological area. Hence, the workflow is fed with a model of the geophysical environment of ground, air and water for a requested area.
(2) Over a specified period of time (e.g. 6 hours) several different variables are measured and observed. Ground stations, ships, airplanes, weather balloons, satellites and buoys measure the air pressure, air/ water temperature, wind velocity, air humidity, vertical temperature profiles, cloud velocity, rain fall, and more.
(3) This data needs to be collected from the different sources and stored for later access.
(4) The collected data is analyzed and transformed into a common format (e.g. Fahrenheit to Celsius scale). The normalized values are used to create the current state of the atmosphere.
(5) Then, a numerical weather forecast is made based on mathematical-physical models (e.g. GFS - Global Forecast System, UKMO - United Kingdom MOdel, GME - global model of Deutscher Wetterdienst). The environmental area needs to be discretized beforehand using grid cells. The physical parameters measured in Step 2 are exposed in 3D space as timely function. This leads to a system of partial differential equations reflecting the physical relations that is solved numerically.
(6) The results of the numerical models are complemented with a statistical interpretation (e.g. with MOS - Model-Output-Statistics). That means the forecast result of the numerical models is compared to statistical weather data. Known forecast failures are corrected.
(7) The numerical post-processing is done with DMO (Direct Model Output): the numerical results are interpolated for specific geological locations.
(8) Additionally, a statistical post-processing step removes failures of measuring devices (e.g. using KALMAN filters).
(9) The statistical interpretation and the numerical results are then observed and interpreted by meteorologists based on their subjective experiences.
(10) Finally, the weather forecast is visualized and presented to interested people." [iaas.uni-stuttgart.de/ forschung/ projects/ simtech/ sim-workflows.php]
The example "Workflow diagram - Weather forecast" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Workflow Diagrams solution from the Business Processes area of ConceptDraw Solution Park.

Work flow chart