Generation of variational standard plant room solutions

We have used the object-based CAD programming to take advantage of standardisation to handle the selection, sizing, layout and (potentially) pipe routing for Low-Pressure Hot Water (LPHW) plant rooms in buildings. Our approach combines automation and interactivity. From a simple specification of the...

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Published in:Automation in construction Vol. 12; no. 2; pp. 155 - 166
Main Authors: Medjdoub, Benachir, Richens, Paul, Barnard, Nick
Format: Journal Article
Language:English
Published: Amsterdam Elsevier B.V 01.03.2003
Elsevier
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ISSN:0926-5805
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Abstract We have used the object-based CAD programming to take advantage of standardisation to handle the selection, sizing, layout and (potentially) pipe routing for Low-Pressure Hot Water (LPHW) plant rooms in buildings. Our approach combines automation and interactivity. From a simple specification of the plant room geometry (an orthogonal polygon with known obstructions, openings and external walls), and the heating load in kW, our software proceeds through a number of steps. First, the number and size of standard modular boilers, pumps, etc., are determined from the heat load. Then, a compatible optimising 3D variational solution is generated, using Constraint Logic Programming. To do this, we firstly enumerate a satisfactory topological solution, and then refine it to form a compatible geometrical solution. The final step generates pipe routes, using optimisation techniques to minimise the length of pipes and the number of bends. The solution obtained can be modified or improved by the designer, for which we have interactivity. Modifying the topology of the solution or the geometry of the plant room is done directly through the graphic interface, e.g. modifying a boiler position is done by dragging; the system automatically updates the 3D model including the pipe routing while maintaining all the design rules. The solutions generated by our prototype have been tested against conventional solutions in a benchmarking exercise. Advantages have been underlined and suggestions for further development have been made.
AbstractList We have used the object-based CAD programming to take advantage of standardisation to handle the selection, sizing, layout and (potentially) pipe routing for Low-Pressure Hot Water (LPHW) plant rooms in buildings. Our approach combines automation and interactivity. From a simple specification of the plant room geometry (an orthogonal polygon with known obstructions, openings and external walls), and the heating load in kW, our software proceeds through a number of steps. First, the number and size of standard modular boilers, pumps, etc., are determined from the heat load. Then, a compatible optimising 3D variational solution is generated, using Constraint Logic Programming. To do this, we firstly enumerate a satisfactory topological solution, and then refine it to form a compatible geometrical solution. The final step generates pipe routes, using optimisation techniques to minimise the length of pipes and the number of bends. The solution obtained can be modified or improved by the designer, for which we have interactivity. Modifying the topology of the solution or the geometry of the plant room is done directly through the graphic interface, e.g. modifying a boiler position is done by dragging; the system automatically updates the 3D model including the pipe routing while maintaining all the design rules. The solutions generated by our prototype have been tested against conventional solutions in a benchmarking exercise. Advantages have been underlined and suggestions for further development have been made.
We have used the object-based CAD programming to take advantage of standardization to handle the selection, sizing, layout and (potentially) pipe routing for Low-Pressure Hot Water (LPHW) plant rooms in buildings. Our approach combines automation and interactivity. From a simple specification of the plant room geometry (an orthogonal polygon with known obstructions, openings and external walls), and the heating load in kW, our software proceeds through a number of steps. First, the number and size of standard modular boilers, pumps, etc., are determined from the heat load. Then, a compatible optimizing 3D variational solution is generated, using Constraint Logic Programming. To do this, we firstly enumerate a satisfactory topological solution, and then refine it to form a compatible geometrical solution. The final step generates pipe routes, using optimisation techniques to minimize the length of pipes and the number of bends. The solution obtained can be modified or improved by the designer, for which we have interactivity. Modifying the topology of the solution or the geometry of the plant room is done directly through the graphic interface, e.g. modifying a boiler position is done by dragging; the system automatically updates the 3D model including the pipe routing while maintaining all the design rules. The solutions generated by our prototype have been tested against conventional solutions in a benchmarking exercise. Advantages have been underlined and suggestions for further development have been made.
Author Richens, Paul
Barnard, Nick
Medjdoub, Benachir
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  email: bm230@cam.ac.uk
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  fullname: Richens, Paul
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  givenname: Nick
  surname: Barnard
  fullname: Barnard, Nick
  email: nib@faber-e.oscarfaber.co.uk
  organization: Oscar Faber, Marlborough House, Upper Marlborough Road, St. Albans, Herts AL1 3UT, UK
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Cites_doi 10.1016/0895-7177(93)90068-A
10.1016/S0954-1810(97)00037-X
10.1145/212066.212084
10.1068/b030037
10.1016/S0954-1810(97)00022-8
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Issue 2
Keywords Topological solutions
Space minimisation
Layout configuration
Interactive modification
Pipe routing
Plant room
Topological geometry
Standardization
Pipe
Algorithm
Arrangement
Implementation
Interactive system
Three dimensional model
Forwarding
User interface
Benchmark calculation
Constraint logic programming
Numerical simulation
Computer aided design
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Snippet We have used the object-based CAD programming to take advantage of standardisation to handle the selection, sizing, layout and (potentially) pipe routing for...
We have used the object-based CAD programming to take advantage of standardization to handle the selection, sizing, layout and (potentially) pipe routing for...
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SubjectTerms Applied sciences
Buildings. Public works
Computation methods. Tables. Charts
Exact sciences and technology
Interactive modification
Layout configuration
Pipe routing
Plant room
Project management. Process of design
Space minimisation
Structural analysis. Stresses
Topological solutions
Title Generation of variational standard plant room solutions
URI https://dx.doi.org/10.1016/S0926-5805(02)00006-7
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