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Modeling with blocks
- Same as in TRISCO
- Additional input of material densities, specific heat values,
solar reflection factors, solar transmission factors
- Thermal conductivities and specific heat values may be temperature dependent (e.g. useful in fire simulations)
- Solar reflection factor may be function of angle of
incidence
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Dynamic boundary conditions
- Boundary conditions are time dependent functions: constant, steps,
periodic, climate values, fire curve, ...
- Solar zone with 3D solar processor (any
geographical location, based on climate files with global and diffuse
solar radiation)
- Ventilation flow functions
- Improved simulation of radiation and convection by use of
RADCON module
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Solution
- Dynamic calculation parameters: time step interval; start-up
calculation duration to get dynamic start values; calculation duration
- Temperature calculation at time step intervals using Cranck-Nicolson
finite difference method
- Iterative solution of ventilation powers
- Absorbed solar radiation is converted to additional
node powers
- Solution of internal diffuse solar reflections and
solar transmissions using radiosity method
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Output
- Graphic animations (AVI files) of 3D views or 2D cross sections of
time varying shadows, absorbed solar radiation, temperatures, heat fluxes
- Snapshots at any time step
- Tables and graphs of time varying solar fluxes, temperatures in given nodes, heat
flows through given faces
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Applications
- Transient analysis of thermal bridges
- Dynamic thermal analysis of floor heating
- Analysis of building elements exposed to fire (Eurocodes)
- Ground heat losses (EN ISO 13370)
- Heat exchange problems (mass flows)
- Advanced façade engineering
- Passive solar building design (sunrooms, Trombe
walls)
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Compatibility
- SECTRA is 2D variant of VOLTRA
- VOLTRA can read TRISCO data
- Same function definitions as in CAPSOL
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Demo program
- Download Physibel demo programs and manuals (14 Mb)
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| Upgrade info |
