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Impact of using different models in practice - a case study with the simplified methods of ISO 13790 standard and detailed modelling programs

Conference Paper


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Abstract


  • The updated ISO 13790 Standard is part of the new

    set of CEN Standards that supports the European

    Energy Performance of Buildings Directive (EPBD)

    requirement for a general framework for calculation

    of the energy consumption of buildings. The

    Standard sets out procedures for space heating and

    cooling energy calculations, allowing the use of three

    different methods: a simplified monthly quasi-steady

    state method, a simple-hourly method and detailed

    simulation. This paper examines the implications of

    allowing different methods to be used for assessing

    the energy usage. The research method used was to

    undertake a comparison of the various methods

    applied to a common building specification, with

    parametric analyses of variations in this specification.

    The paper discusses differences in results for heating

    and cooling requirements between the simplified

    methods and when a detailed simulation program

    (ESP-r) is used with constrained (according to the

    Standard) inputs and with a number of unconstrained

    inputs. The case where two different detailed

    simulation programs (ESP-r and EnergyPlus) are

    used in practice for the same building is also

    included and conclusions are drawn regarding the

    practical use of different detailed modelling

    programs against the simplified methods, as well as

    against each other.

Publication Date


  • 2007

Citation


  • Kokogiannakis, G., Clarke, J. & Strachan, P. (2007). Impact of using different models in practice - a case study with the simplified methods of ISO 13790 standard and detailed modelling programs. International Building Performance Simulation Association (IBPSA 2007) (pp. 39-46).

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4682&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3663

Start Page


  • 39

End Page


  • 46

Abstract


  • The updated ISO 13790 Standard is part of the new

    set of CEN Standards that supports the European

    Energy Performance of Buildings Directive (EPBD)

    requirement for a general framework for calculation

    of the energy consumption of buildings. The

    Standard sets out procedures for space heating and

    cooling energy calculations, allowing the use of three

    different methods: a simplified monthly quasi-steady

    state method, a simple-hourly method and detailed

    simulation. This paper examines the implications of

    allowing different methods to be used for assessing

    the energy usage. The research method used was to

    undertake a comparison of the various methods

    applied to a common building specification, with

    parametric analyses of variations in this specification.

    The paper discusses differences in results for heating

    and cooling requirements between the simplified

    methods and when a detailed simulation program

    (ESP-r) is used with constrained (according to the

    Standard) inputs and with a number of unconstrained

    inputs. The case where two different detailed

    simulation programs (ESP-r and EnergyPlus) are

    used in practice for the same building is also

    included and conclusions are drawn regarding the

    practical use of different detailed modelling

    programs against the simplified methods, as well as

    against each other.

Publication Date


  • 2007

Citation


  • Kokogiannakis, G., Clarke, J. & Strachan, P. (2007). Impact of using different models in practice - a case study with the simplified methods of ISO 13790 standard and detailed modelling programs. International Building Performance Simulation Association (IBPSA 2007) (pp. 39-46).

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4682&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3663

Start Page


  • 39

End Page


  • 46