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"Automobile air conditioning systems cool the occupants of a vehicle in hot weather, and have come into wide use from the late twentieth century. Air conditioners use significant power; on the other hand the drag of a car with closed windows is less than if the windows are open to cool the occupants evaporatively. There has been much debate on the effect of air conditioning on the fuel efficiency of a vehicle. Factors such as wind resistance, aerodynamics and engine power and weight have to be factored into finding the true variance between using the air conditioning system and not using it when estimating the actual fuel mileage. Other factors on the impact on the engine and an overall engine heat increase can have an impact on the cooling system of the vehicle." [Automobile air conditioning. Wikipedia]
The block diagram example "Automotive HVAC system" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Block Diagrams solution from the area "What is a Diagram" of ConceptDraw Solution Park.
Automotive HVAC system
Automotive HVAC system, block diagram,
Used Solutions

The Building Blocks Used in EPC Diagrams

Design elements for EPC diagrams (Win, Mac)
Event-Driven Process Chain Diagrams is using for improvement throughout an organisation. ConceptDraw PRO - software that reduces the time needed to create a EPC diagrams.

systems engineering, sysml SYSML

systems engineering, sysml
The SysML solution helps to present diagrams using Systems Modeling Language; a perfect tool for system engineering.

engineering, mechanical, electrical, chemical, process, diagram, scheme, technical, drawing Engineering

engineering, mechanical, electrical, chemical, process, diagram, scheme, technical, drawing
This solution extends ConceptDraw PRO v9.4 with the ability to visualize industrial systems in electronics, electrical, chemical, process, and mechanical engineering.

Cross Functional Diagram

Cross Functional Diagram
You want design the Cross Functional Diagram and need powerful software? Then ConceptDraw PRO diagramming and vector drawing software extended with Cross-Functional Flowcharts Solution is exactly what you need.

Basic Diagramming

Flowchart - Mathematics - Solving quadratic equation
Mathematics is an exact science, which studies the values, spatial forms and quantitative relations. It is a science, in which is built large number of various diagrams, charts and graphs that present the material in a clear, visual and colorful form, help to analyze the information and to make certain conclusions. A diagram is a graphical representation of data using the linear segments or geometric shapes, which allows to evaluate the ratio of several values. Depending on the types of solved tasks are used the diagrams of different kinds. A graph is a diagram that shows quantitative dependencies of various processes using the curves. ConceptDraw PRO is a powerful intelligent and multifunctional vector engine for drawing different Mathematical diagrams and graphs, Mathematical illustrations, complex and simple Diagram mathematics, Flowcharts of equation solving process, Line graphs, Scatter plots, Histograms, Block diagrams, Bar charts, Divided bar diagrams, Pie charts, Area charts, Circular arrows diagrams, Venn diagrams, Bubble diagrams, Concept maps, and many others.

Best Diagramming Software for macOS

Best Diagramming Software for macOS
ConceptDraw PRO creates drawings, flowcharts, block diagrams, bar charts, histograms, pie charts, divided bar diagrams, line graphs, area charts, scatter plots, circular arrows diagrams, Venn diagrams, bubble diagrams with great visual appeal on Mac OS X.
How to Draw a Bubble Chart
How to Draw a Bubble Chart

Elements of an Event-Driven Process Chain

EPC diagram - Design elements (Win, Mac)
Event-Driven Process chain Diagrams for improvement throughout an organisation. ConceptDraw PRO - software that reduces the time needed to create a business process model.

Basic Flowchart Symbols and Meaning

Flowchart Symbols and Meaning, workflow diagram symbols, process flow diagram symbols
Flowcharts are the best for visually representation the business processes and the flow of a custom-order process through various departments within an organization. ConceptDraw PRO diagramming and vector drawing software extended with Flowcharts solution offers the full set of predesigned basic flowchart symbols which are gathered at two libraries: Flowchart and Flowcharts Rapid Draw. Among them are: process, terminator, decision, data, document, display, manual loop, and many other specific symbols. The meaning for each symbol offered by ConceptDraw gives the presentation about their proposed use in professional Flowcharts for business and technical processes, software algorithms, well-developed structures of web sites, Workflow diagrams, Process flow diagram and correlation in developing on-line instructional projects or business process system. Use of ready flow chart symbols in diagrams is incredibly useful - you need simply drag desired from the libraries to your document and arrange them in required order. There are a few serious alternatives to Visio for Mac, one of them is ConceptDraw PRO. It is one of the main contender with the most similar features and capabilities.
How to Build a Flowchart
How to Build a Flowchart

Best Diagramming

Circle-spoke diagram - Proximity based marketing
Need to draw a diagram, process chart, flowchart, organizational chart, graphic design? ConceptDraw can help you to make professional graphic documents quickly.
How to Draw a Bubble Chart
How to Draw a Bubble Chart

Cylinder Venn Diagram

Cylinder Venn Diagram
You need design Cylinder Venn Diagram? Nothing could be easier with ConceptDraw PRO diagramming and vector drawing software extended with Venn Diagrams Solution from the “Diagrams” Area. ConceptDraw PRO allows you to design various Venn Diagrams including Cylinder Venn Diagrams.

Simple & Fast Diagram Software

Audit flowchart - Project management process
It is so simple making the drawing process easier and faster. you just need to choose the right drawing software. ConceptDraw Arrows10 Technology - This is so easy and fast to draw any type of diagram with any degree of complexity.

Draw Company Structure with Organization Charting Software

Draw Company Structure - New York State Education Department

Draw Company Structure Diagram - get the detailed information about the company structure and hierarchy - who execute what tasks and who is in charge at this company. This information shows the reasoning and success of business and is indispensable for investors and financial institutions.

Best Vector Drawing Application for Mac OS X

ConceptDraw PRO creates drawings, diagrams and charts with great visual appeal in Mac OS X.

Basic Diagramming

Flowchart - Project Management Life Cycle
Try ConceptDraw program, the perfect drawing tool for creating all kinds of great-looking drawings, charts, graphs, and illustrations.