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Darren Robinson

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Related publications (51)

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Holistic Radiation Modelling with a Fast Simplified Radiosity Algorithm

Darren Robinson

The radiant external environment may be described by two hemispheres, above and below the horizontal plane, which are discretised into patches of known solid angle. Occlusions to these patches may be combined and represented as some patch fraction for whic ...

2005

Modelling occupants’ personal characteristics for thermal comfort prediction

Darren Robinson, Frédéric Haldi

Based on results from a field survey campaign conducted in Switzerand, we show that occupants’ variations in clothing choices, which are relatively unconstrained, are best described by the daily mean outdoor temperature and that major clothing adjustments ...

Springer-Verlag2011

Solurban Project, Solar Utilisation Potential of Urban Sites

Jean-Louis Scartezzini, Darren Robinson, Marylène Montavon

Besides providing a more efficient energy use, a large scale application of solar energy technologies in the urban context will be required in the upcoming decades to achieve a drastic reduction of greenhouse gas emissions in the biosphere. Three different ...

2005

An adaptive model of overheating risk

Darren Robinson, Frédéric Haldi

Based on analogy between the charging and discharging of humans' tolerance to overheating stimuli and that of charge in an electrical capacitor, this paper proposes a simple mathematical model for predicting overheating risk given a set of measured / simul ...

BRENET2008

A comparison of global optimisation algorithms with standard benchmark functions and real-world applications using EnergyPlus

Darren Robinson, Jérôme Henri Kämpf

There is an increasing interest in the use of computer algorithms to identify combinations of parameters which optimise the energy performance of buildings. For such problems, the objective function can be multi-modal and needs to be approximated numerical ...

Taylor & Francis2010

Results from the monitoring of indoor environment and occupant perceived productivity in office buildings

Darren Robinson, Frédéric Haldi

Based on almost 18 months of continuous direct measurements coupled with an electronic questionnaire, we have analysed the influence of indoor temperature and illuminance, outdoor climate parameters, thermal and visual sensation, clothing and season on the ...

2010

Void Fraction and Two-Phase Pressure Drops for Evaporating Flow over Horizontal Tube Bundles

John Richard Thome, Darren Robinson, Lorenzo Consolini

2006

Solar radiation modelling for urban environments

Darren Robinson

In this paper we briefly describe three alternative techniques for modelling solar radiation in the urban context. These include the use of: (i) simple morphological parameters as indicators of radiation availability, (ii) a ray-tracing program in conjunct ...

Université de Technologie Compiègne2010

An Integrated Adaptive Model for Overheating Risk Prediction

Darren Robinson, Frédéric Haldi

Based on results from a field survey campaign, this paper describes three new developments which have been integrated to provide for a comprehensive basis for the evaluation of overheating risk in offices. Firstly, a set of logistic regression equations ha ...

2007

From the neighbourhood to the city : resource flow modelling for urban sustainability

Philippe Leroux, Darren Robinson, Jérôme Henri Kämpf, Frédéric Haldi, Urs Wilke, Diane Perez

Agreed intergovernmental targets to reduce the emission of greenhouse gases due to predominantly urban anthropogenic activities are becoming increasingly stringent; one might even say ambitious. One crucial strategy in achieving these targets will be to im ...

EPFL2009

Representing Behaviour and Adaptation of Office Occupants in Building Simulation

Darren Robinson, Frédéric Haldi

During the warm summer of 2006 a comprehensive longitudinal field survey of the adaptive actions of occupants, their thermal satisfaction and the coincident environmental conditions was conducted in eight Swiss offices. Based on analysis of these results w ...

EPFL2007

Decision support for environmental master planning by integrated flux modelling

Darren Robinson

At the scale of the urban neighbourhood economies of scale make the local centralised management of resources (energy, water and waste) viable, with considerable environmental dividends. It is also possible to layout buildings to optimise their utilisation ...

2005

THE IMPACT OF OCCUPANTS’ BEHAVIOUR ON URBAN ENERGY DEMAND

Darren Robinson, Frédéric Haldi

Using extensive field survey data acquired over the past seven years at the Solar Energy and Building Physics Laboratory at EPFL in Switzerland, models of occupants’ presence, opening and closing of windows and the raising and lowering of blinds have been ...

TU Vienna2010

A bottom-up stochastic model to predict building occupants' time-dependent activities

Jean-Louis Scartezzini, Darren Robinson, Frédéric Haldi, Urs Wilke

A bottom-up modelling approach together with a set of calibration methodologies is presented to predict residential building occupants' time-dependent activities, for use in dynamic building simulations. The stochastic model to predict activity chains is c ...

Elsevier2013

Urban District Energy Futures: A Dynamic Material Flow Analysis (MFA) Model

Jean-Louis Scartezzini, Darren Robinson

With more than half the world population now urbanised, urban metabolism – defined as the throughput and transformation of material and energy flows to sustain human life in urban settlements – is responsible for consuming the majority of global resources ...

EPFL2007

A generalised stochastic model for the simulation of occupant presence

Jean-Louis Scartezzini, Darren Robinson, Nicolas Morel, Jessen Page

This paper describes an algorithm for the simulation of occupant presence, to be later used as an input for future occupant behaviour models within building simulation tools. By considering occupant presence as an inhomogeneous Markov chain interrupted by ...

2008

Towards integrated decision support for sustainable urban planning

Darren Robinson

Over half of the global population is now living within urban settlements in which some three quarters of global resource consumption takes place. The environmental consequences of this urbanisation are both profound and increasing. It is thus important th ...

2008

Optimisation of Buildings Daylight Availability

Darren Robinson, Jérôme Henri Kämpf, Marylène Montavon

Many researchers have the goal of improving buildings daylight availability in order to decrease the HVAC energy intake. Indeed by achieving/identifying sustainable urban forms and their design concepts, the benefits of the solar radiation can be of threef ...

EPFL2007

Stochastic Simulation of Occupant Presence and Behaviour in Buildings

Jean-Louis Scartezzini, Darren Robinson, Jessen Page

While most current building simulation tools consider occupants as predictable robots the true nature of human behaviour is more complex. This article describes a set of stochastic models aimed at capturing this complexity by decoupling occupant presence f ...

2007

Urban morphology and indicators of radiation availability

Darren Robinson

Common indicators used to examine the potential for utilising natural radiation of urban forms include the sky view factor (V-s), the height to width ratio and the urban horizon angle. These indicators are conveniently related to one another. In comparing ...

2006