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The use of attached-sunspaces in retrofitting design: the case of residential b...

This study addresses the energetic performance of an attached-sunspace applied to an existing residential building in Portugal. Four configurations (two attached, one integrated and one partially integrated) are studied in six different climatic zones. In addition other key parameters are considered such as ventilation (with or without natural ventilation), shading devices (one external and two internal configu...

From solar building design to Net Zero Energy Buildings: performance insights o...

Net Zero-Energy Buildings Performance has gained more attention since the publication in 2010 of the EPBD recast [1]. Successful implementation of such an ambitious target depends on a great variety of factors. With a literature full of theoretical advice and a building industry rife with myths about the value of technologies, the present study intend to unveil an sustainable framework for sharing insights into...

Thermal performance of a hybrid BIPV-PCM: modeling, design and experimental inv...

In this paper, a BIPV-PCM installed in an office building façade is investigated to approach the practical application of PV-PCM. Based on an updated mathematical model, theoretical simulation has been conducted for BIPV-PCM in this case. Furthermore, field testing for this case has also been performed to validate the model, and then the simulated and experimental results are compared and found in considerably ...

Applications of PCMs

This section will consider a number of applications of phase change materials. The work was compiled as part of the applications working group of TU0802. This chapter is a précis of the work which can be read in detail in the deliverables published by the COST action.

Design issues for net zero-energy buildings 

Net Zero-Energy Buildings (NZEBs) have received increased attention in recent years as a result of constant concerns about energy supply constraints, decreasing energy resources, increasing energy costs and the rising impact of greenhouse gases on world climate. Promoting whole building strategies that employ passive measures together with energy efficient systems and technologies using renewable energy became ...

Edifícios de balanço energético nulo: uma síntese das características principais

Os edifícios de balanço energético nulo têm recebido uma atenção crescente desde a publicação da nova Directiva sobre o Desempenho Energético dos Edifícios em 2010 (EPBD, 2010). A nova EPBD, vai obrigar todos os edifícios novos construídos a partir de 2020 serem caracterizados por níveis mais elevados de desempenho energético, procurando explorar mais as fontes de energia renováveis disponíveis localmente numa ...

The nZEBs in the near Future: Overview of definitions and guidelines towards ex...

Zero-energy performance buildings have gained significant attention since the publication in 2010 of the recast of the EPBD recast which requires all new buildings to become nearly zero-energy by 2020. Buildings are requested to meet higher levels of energy performance and to explore more the alternative energy supply systems available locally on a cost-efficiency basis. Since the directive does not specify min...

BIPV/T versus BIPV/T-PCM: A numerical investigation of advanced system integrat...

Energy saving potential of a hybrid BIPV-T system integrated with heat storage ...

Design strategies for non-residential zero-energy buildings: lessons learned fr...

Net zero-energy buildings (Net ZEBs) have been the object of various studies in recent years as various countries have set this performance as long-term goal of their energy policies. Designing successful Net ZEBs represents a challenge since the definitions are yet generic, the assessment method and monitoring approach are under development and the literature is relatively scarce about the best sets of solutio...