|
Hi Nesen Two approaches for your solution: 1. Parametric Runs of
Energy Simulation You can use Energy Simulation software
to run the same file changing parameters of your choice, hence it is called
parametric runs. You can run your input file parametrically using EnergyPlus.
This can be big and time consuming. And it is impossible to visualize such
problems with more than 2 design and 1 response variables. Anyway, there are
different ways you can do it: a.
Using
MS-DOS batch file b.
Using
available interfaces c.
Design
your own interface to existing simulation software 2. Use formal
optimisation techniques So far, it is more realistic way to deal
with a number of variables. BUT you have to be proficient enough on
optimisation techniques and formulation of the problem. Result can be tricky
enough if you don’t model your problem properly. See Louisa Gama
Caldas’s paper on this: Caldas, L.G., Norford, L.K. 2002. “A design
optimization tooll based on a genetic algorithm” Automation in
Construction, Vol. 11, pp 173-184. GenOpt by Michael
Wetter can be of help. Go to: http://simulationresearch.lbl.gov/GO
. You can use different types of algorithms to optimise the façade. GenOpt also
claims to be able to do parametric runs. One thing you need to remember, GenOpt
is not only for environmental design optimisation. It is rather generic –
you can couple any ASCII file based simulation software. Its free but I am not
sure of other aspects. There are a lot of commercial optimisation software
available to suit your need. These algorithms are tested, robust and will give
you better results than “available free codees”. Such a software
may be VisualDOC (http://www.vrand.com). To gain a
comprehensive idea of optimisation and its application try visiting NEOS server
on optimisation. ParamPlus claims to do parametric energy simulations. Check
it. I have done some coding
to do parametric and optimisation runs. These are still in alpha release and
sorry that I cant share it right now. But if you are stuck, don’t
hesitate to write. Regards, Monjur Mourshed -----Original
Message----- hi everybody I have been following the discussions for a while and
I hope to get some help. I am a graduate student in architecture studying
on thermal performance of building facades. I will work on an existing
office building and try to find optimum facade properties by altering the
envelope compositions (changing wall materials and thicknesses, glazing
properties, etc.) in a computer program. I will be glad if you have any advices on which
program to use for this study. I have been examining a few but couldn't find a
satisfying one as far as I will only deal with envelope properties. hope there is somebody to help me. Nesen Surmeli Do you Yahoo!? =====================================================You received this e-mail because you are subscribed to the BLDG-SIM@xxxxxxxx mailing list. To unsubscribe from this mailing list send a blank message to BLDG-SIM-UNSUBSCRIBE@xxxxxxxx |