Alejandro Prieto

Alejandro Prieto
Universidad Diego Portales · Escuela de Arquitectura

PhD in Architectural Engineering

About

42
Publications
40,036
Reads
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425
Citations
Citations since 2017
30 Research Items
421 Citations
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2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140
Introduction
Architect/MSc in Architecture from Pontifical Catholic University of Chile (PUC), and Doctor from Delft University of Technology (TU Delft), specializing in climate responsive façade design, energy efficiency and façade integration of low-energy building systems and cooling technologies. Throughout his professional career he has performed functions in architectural design and climate design consultancy, along with research and teaching activities in the field of building technologies.
Additional affiliations
February 2014 - February 2018
Delft University of Technology
Position
  • PhD Student

Publications

Publications (42)
Article
Full-text available
Solar cooling systems have gained increased attention these last years, for its potential to lower indoor temperatures using renewable energy. However, architectural integration of these systems in buildings has not been fully explored. Current developments such as small scale solar driven heat pumps and solar cooling kits commercially available fo...
Article
Full-text available
Cooling demands of commercial buildings present a relevant challenge for a sustainable future. They account for over half of the overall energy needs for the operation of an average office building in warm climates, and this situation is expected to become more pressing due to increasing temperatures in cities worldwide. To tackle this issue, it is...
Article
Full-text available
Cooling demands in buildings have drastically increased in recent decades and this trend is set to continue into the near future, due to increasing standards of living and global climate change, among the most relevant factors. Besides energy consumption, the use of re-frigerants in common vapour compression cooling technologies is a source of conc...
Article
Full-text available
Small-scale systems and integrated concepts are currently being explored to promote the widespread application of solar cooling technologies in buildings. This article seeks to expand application possibilities by exploring the feasibility of solar cooling integrated façades, as decentralized self-sufficient cooling modules on different warm regions...
Article
The integration of decentralised building services into façade components presents advantages from functional and constructional standpoints. However, this integrated approach has not been massively implemented, having only stand-alone buildings and façade concepts as examples. This paper seeks to identify the main perceived problems at design, pro...
Article
Full-text available
Several studies performing building simulations showed that the automated control of façades can provide higher levels of indoor environmental quality and lower energy demand in buildings, in comparison to manually controlled scenarios. However, in several case studies with human volunteers, automated controls were found to be disruptive or unsatis...
Article
Full-text available
Several studies performing building simulations showed that the automated control of façades can provide higher levels of indoor environmental quality and lower energy demand in buildings, in comparison to manually controlled scenarios. However, in several case studies with human volunteers, automated controls were found to be disruptive or unsatis...
Article
Full-text available
Façades cover a significant amount of surfaces in cities and are in constant interaction with the acoustic environment. Noise pollution is one of the most concerning burdens for public health and wellbeing; however, façade acoustic performance is generally not considered in outdoor spaces, in contrast to indoor spaces. This study presents a systema...
Article
Full-text available
Adaptive façades are multifunctional systems that are able to change their functions, features, or behaviour over time in response to changing boundary conditions or performance requirements. As one of the significant developments in the façade industry over the last decade, the adaptive façade offers an intelligent solution that can decrease energ...
Conference Paper
Full-text available
The global attention to solar cooling systems has increased during the last years as a result of the expected growth in the world cooling demand. Such systems encompass the use of renewable energy as the main driver for mitigating indoor temperatures. Currently, some of these technologies are mature enough for their commercial application in buildi...
Article
Full-text available
The paper explores the potentials of shape memory alloys (SMAs) for the design of auto-reactive façade systems without using additional external energy. The exploration is conducted and assessed through the design of a façade concept for the city of Athens in Greece, aiming to improve both the indoor and outdoor environment by means of a kinetic au...
Article
Full-text available
The implementation of Nearly Zero-Energy Buildings (NZEB) renovation packages in Europe needs to be accelerated to meet the decarbonisation goals. To achieve this level of performance, building renovation strategies should shift towards industrialised solutions that incorporate a multitude of passive and active components, increasing the complexity...
Article
Full-text available
Multi-Material Additive Manufacturing (MMAM) is an emerging manufacturing approach that is gaining interest in architecture and construction as an expansion of Additive Manufacturing. Hereby, different materials or material properties are combined in a single additive process in order to create objects that are composed of multiple materials. Ultim...
Article
Full-text available
Bio-receptivity refers to the aptitude of a material to allow for the natural growth of small plant species on stony surfaces with minimum external influence. Despite the numerous associated environmental benefits, the growth of mosses and lichens on facades has always been viewed as a negative phenomenon due to the random and shabby growth conditi...
Article
Full-text available
The aesthetic of our built environment is perceived as an important aspect to consider for the design of human-centred cities, but a problem quickly arises in the presence of clashing conceptions of what we understand to be aesthetically pleasing. This paper adds to this discussion, by exploring architects' aesthetic preferences in façade design, a...
Article
As a state-of-the-art green façade technology, building-integrated microalgae bioreactor has the potential to reduce buildings’ carbon footprint and energy consumption. The present study aims to address the knowledge gap in the energy and daylighting performance of algae photobioreactor façade. The paper first studies the effects of algae windows o...
Article
Full-text available
Increased urbanisation will put an increasing strain on our green spaces, which is expected to have a significant effect on our physical and mental health, as well as the health of our ecosystems. As such it is important to integrate more green spaces in our urban fabric. One way of doing this is by making use of so-called bioreceptive concrete on...
Article
Full-text available
A bioreceptive material allows for biological content (biofilms) to grow on it, without necessarily affecting the material itself. If a bioreceptive concrete could therefore be integrated into a building façade, it could lead to green façades that do not need additional technical systems. As part of previous research by the authors, a promising bio...
Conference Paper
Full-text available
The concept of sustainability has risen in the last three decades, as a vehicle to guide our efforts to overcome major environmental and societal challenges such as global warming and environmental degradation. The built environment is responsible for about 40% of the global CO2 emissions, a fact that has led to countless debates, approaches, and n...
Article
Full-text available
Desigrated" presented an attempt to integrate heat prevention strategies with low-ex cooling technologies, namely the desiccant and M-cycle evaporative cooling technology, in the form of a façade system for high-rise office buildings. The project targets to provide an alternative cooling solution for the hot and humid climate context of Bangkok. Th...
Article
Full-text available
The circular economy is a widely accepted concept that various governments have started to adopt. Still, a major consumer of resources, the construction industry, struggles to implement business models that answer to the opportunity and generate value beyond economical. At the same time, the industry is at a threshold of intensifying their producti...
Article
Full-text available
In the Kingdom of Saudi Arabia (KSA), residential buildings' energy consumption accounts for almost 50% of the building stock electricity consumption. The KSA's economy relies heavily on fossil fuel sources, namely oil reservoirs, whose depletion will negatively affect the future development of the country. The total electricity consumption is grow...
Preprint
Full-text available
In the Kingdom of Saudi Arabia (KSA), residential buildings' energy consumption accounts for almost 50% of the building stock electricity consumption. The KSA's economy relies heavily on fossil fuel sources, namely oil reservoirs, whose depletion will negatively affect the future development of the country. The total electricity consumption is grow...
Article
Full-text available
Increasing cooling demands in the built environment call for innovative technical solutions and systems for application in buildings. Cooling loads represent an important share of the total energy consumption in warm climates, especially in commercial and office buildings. Moreover, mechanical systems will still be needed in most cases to cope with...
Thesis
Full-text available
Increasing cooling demands in the built environment present an important and complex challenge for the design of sustainable buildings and cities. Even though the first course of action should always aim to reduce energy consumption through saving measures and passive design; these are often not enough to avoid mechanical equipment altogether, part...
Book
Full-text available
Održiva i otporna građena sredina je složen sistem čije se značenje kontinualno razvija. Cilj ove publikacije je da problemu održivosti i otpornosti pristupi kroz sistematsko istraživanje različitih segmenata i razmera izgrađenog okruženja, odnosno da predstavljanjem preglednih radova (poglavlja), među kojima je uspostavljena odgovarajuća funkciona...
Chapter
Full-text available
Given the need to reduce building sector related energy consumption and greenhouse gases (GHG), passive and sustainable buildings are a focal point. Simple methods and techniques, which use appropriate building design, material and systems selection, and reflect consideration of the local environmental elements, such as air and sun, provide thermal...
Article
Full-text available
This paper seeks to present a panorama of cooling related research in office buildings, categorising reported research experiences from the past 25 years in order to identify knowledge gaps and define current paths and trends for further exploration. The general goal behind this research is to support the design of sustainable office buildings in w...
Poster
Full-text available
The research project deals with the integration of solar driven cooling strategies into the building façade, as a way to support the use of low-energy alternatives to the use of centralized AC in office buildings. Furthermore, the possibility of using the façade itself as a heat dissipation system is seen as an opportunity for the development of se...
Article
Full-text available
Solar energy has been actively promoted as a clean energy source since 1973’s oil crisis, evidenced by the emergence of initiatives such as the Solar Heating & Cooling Programme of the International Energy Agency or the US Department of Energy. Nonetheless, solar technologies have not been widely used in the built environment, limiting their operat...
Conference Paper
Solar cooling systems have increasingly been a subject of attention during the past couple of decades, for its potential to lower indoor temperatures using solar (and thus renewable) energy. Several initiatives supported by private developers and public organisations such as the Solar Heating & Cooling Programme of the IEA, have been promoting the...
Conference Paper
The integration of decentralised building services into façade components presents advantages not only in functional terms, but also from a construction standpoint. However, this integrated approach seems to be too complex to allow for widespread implementation, having stand-alone examples instead of understanding it as a possible path to follow fo...
Poster
Full-text available
Energy efficiency has growing worldwide relevance in the current context. The necessity of lowering energy consumption from fossil fuels demands to take action on optimizing systems currently under operation, and at the same time on developing new technologies driven by renewable sources of energy. This research project examines the feasibility of...
Chapter
Full-text available
Resumen: Los edificios de oficina en Santiago han mostrado severos problemas de sobrecalentamiento, deslumbramiento y de alta demanda de refrigeración, lo que puede explicarse por el tipo de fachada utilizada en su envolvente. Con el objetivo de caracterizar los sistemas de fachadas utilizados en estos edificios, se diseñó un protocolo para medicio...
Poster
Full-text available
This PhD project deals with the integration of solar cooling strategies into the building façade, as a way to support the use of low-exergy alternatives instead of the use of centralized AC in office buildings. Furthermore, the possibility of using the façade itself as a heat dissipation system is seen as an opportunity for the development of self-...
Chapter
Office buildings in Santiago do not respond adequately to their climate context, which brings issues of discomfort at indoor spaces or high energy consumption in order to achieve comfortable conditions. The paper intends to establish certain relationships between several parameters registered on different office buildings in Santiago in order to ad...
Article
Full-text available
Overheating, glare, and high-energy demand are recurrent problems in office buildings in Santiago, Chile (33° 27'S; 70° 42'W) during cooling periods. Santiago climate is warm and dry, with high solar radiation and temperature during most of the year. The objective of this paper is to evaluate the thermal and daylighting performance of office buildi...
Article
Full-text available
This paper is part of a general research project whose main objective is to establish a baseline for post-occupancy energy consumption and indoor environmental quality for office buildings in Santiago, Chile. This study aims at understanding how architectonical variables relate to, and can even determine, user comfort perception. Thus, one-year con...
Article
Full-text available
Through applied research works and a series of measurements, this article shows the positive performance of ventilated façades in wood constructions located in the sunny central areas of Chile.
Article
Full-text available
During the 20th century a new paradigm of workspace emerged: the office space. Artificially controlled and isotropic, its connection with the open air has been limited, but the current appreciation of this relationship has triggered some rethinking on this building typology.
Conference Paper
Full-text available
: This paper is part of an ongoing research related with the study of energy performance of “class A” office buildings constructed in Santiago in the last decade. The work presented is the selection of cases to be studied, considering shape and façade parameters, and the characterization of the thermal behavior registered in summer season. Summer i...
Conference Paper
Full-text available
Office buildings in Santiago do not respond adequately to their climate context, which brings issues of discomfort at indoor spaces or high energy consumption in order to achieve comfortable conditions. The paper intends to establish certain relationships between several parameters registered on different office buildings in Santiago in order to ad...

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Projects

Projects (4)
Project
The PhD research project investigates the influence of façade design on urban soundscape.