Energy renovation of an office building using a holistic design approach
Journal article, 2016

This paper presents a holistic approach to perform energy renovations of office buildings. A real case study is used to demonstrate how different software can be used to facilitate the work of architects and engineers during different design stages. Initially, the moisture safety of the building is coupled to its energy performance to define the optimum insulation level. The new interior layout is based on an initial daylight study, rather than on architectural intuition. On a second stage, shading and natural ventilation are studied to eradicate any cooling demand, while the interdependence between heating energy and daylight is assessed for the use of light-wells. To demonstrate the trade-offs between visual control and electrical lighting, different shading systems are examined for a cellular office. Finally, two alternate HVAC systems are analyzed to investigate whether passive standards can be achieved with an all-air system and/or a hydronic system.


Low energy office


Moisture safety



I. Bournas

Lund University

M. Abugabbara

Lund University

A. Balcerzak

Lund University

M.C. Dubois

Lund University

Saqib Javed

Lund University

Journal of Building Engineering

2352-7102 (eISSN)

Vol. 7 September 2016 194-206

Subject Categories

Architectural Engineering

Energy Engineering

Construction Management

Other Civil Engineering

Energy Systems

Building Technologies



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