K. Martin

K. Martin
Universidad del País Vasco / Euskal Herriko Unibertsitatea | UPV/EHU · Thermal Engineering

PhD in Thermal Engineering

About

53
Publications
10,252
Reads
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706
Citations
Additional affiliations
September 2009 - present
Universidad del País Vasco / Euskal Herriko Unibertsitatea
Position
  • Professor (Associate)
Description
  • Energy Efficiency in Buildings
September 2009 - present
University of the Basque Country - Faculty of Engineering in Bilbao
Position
  • Professor (Associate)
Description
  • Heat Transfer, Thermal Engineering, Building Energy Simulation, Numerical Methods applied to heat transfer
September 2009 - April 2019
Universidad del País Vasco / Euskal Herriko Unibertsitatea
Position
  • Professor (Associate)

Publications

Publications (53)
Article
The efficient integration of high levels of industrial waste heat in low temperature district-heating networks is a promising technique that requires specific methodologies for its satisfactory implementation. This paper presents a novel methodology for assessing the energy and economic feasibility of new district-heating networks in existing urban...
Article
Full-text available
This research aims to enter the miniature refrigeration machine sector with the objective of designing a small scale unit while maintaining a competitive coefficient of performance (COP), comparing with a Peltier plates system. To this end, a research of the current technology was carried out in order to obtain indicative values on the scales that...
Article
One of the most important steps in the retrofitting process of a building is to understand its pre-retrofitting stage energy performance. The best choice for carrying this out is by means of a calibrated building energy simulation (BES) model. Then, the testing of different retrofitting solutions in the validated model allows for quantifying the im...
Article
Full-text available
The use of georeferenced information system and Light Detection and Ranging (LiDAR) data in combination with traditional data analytics tools is very promising in urban scale engineering and especially in energy urban planning. This paper explores the use of new DH networks for industrial waste heat exploitation and for that purpose, a case-study i...
Article
Full-text available
An accurate characterization and prediction of heat loads in buildings connected to a District Heating (DH) network is crucial for the effective operation of these systems. The high variability of the heat production process of DH networks with low supply temperatures and derived from the incorporation of different heat sources increases the need f...
Article
The latest Direct Numerical Simulation (DNS) modelling results in flameless combustion suggest interactions between the combustion reaction zones. The New Extended Eddy Dissipation Concept (NE-EDC) model, where model coefficients are calculated based on local Reynolds and Damköhler numbers, was proposed to improve the standard Eddy Dissipation Conc...
Article
Full-text available
The existing performance gap between the design and the real energy consumption of a building could have three main origins: the occupants’ behaviour, the performance of the energy systems and the performance of the building envelope. Through the estimation of the in-use Heat Loss Coefficient (HLC), it is possible to characterise the building’s env...
Article
Flameless combustion, also called MILD combustion (Moderate or Intense Low Oxygen Dilution), is a technology that reduces NOx emissions and improves combustion efficiency. Appropriate turbulence-chemistry interaction models are needed to address this combustion regime via computational modelling. Following a similar analysis to that used in the Ext...
Article
Full-text available
Gaur egun klima aldaketaren inguruan daukagun egoera hobetzeko, energia kontsumoa murriztu behar da eta teknologia eraginkorrak eta emisiorik gabekoak suspertu behar dira. Nahiz eta energia berriztagarrien alde apustu egin, gaur egungo datuen arabera, bai gaur egun zein etorkizunean erregai fosilen kontsumoa energia primarioa izango da. Egoera hone...
Article
Full-text available
The improvement of the energy performance in buildings is key for sustainable development, even more so in the case of the Dominican Republic (DR), which is committed to this goal but which has neither regulation nor specific social behavior in this field. The main goal of this work is double; on one hand it is aimed at providing useable informatio...
Article
The thermal characterization of building components in dynamic exterior conditions is crucial for understanding their real performance, particularly if they are passive or active solar elements. In this respect, the PASLINK methodology has stood out as an effective technique for outdoor testing due to its level of development and precision. It is b...
Article
In order to improve the energy efficiency and control of heat pump systems, it is necessary to develop dynamic models that accurately simulate their real performance. In addition, these models will help to carry out future works of research, such as new low carbon refrigerant testing. Physics-based models follow a set of physics laws that characte...
Article
Purpose Understanding the dynamic hygrothermal behavior of building elements is very important to ensure the optimal performance of buildings. The Laboratory for Quality Control in Buildings of the Basque Government tested a flat roof designed by a construction company that developed a building to be constructed using prefabricated modules. This is...
Article
Residential reversible liquid-to-liquid heat pump systems are effective systems to increase energy efficiency and decrease gas emissions of buildings that can supply both the cooling and heating demand of a building due to the reversible capability. This document presents an innovative model developed in Matlab/Simulink that simulates the dynamic...
Article
To spread the nearly Zero Energy Building (NZEB) concept, there is a need for the combined integration of energy saving measures and energy supply systems that minimize the non-renewable primary energy consumption. This paper aims to analyse the capabilities of a novel system composed of a photovoltaic (PV) double skin façade (PV-DSF) coupled to an...
Article
The performance gap between the design energy consumption of buildings and their real energy consumption has three main sources: the energy systems’ performance, the users’ behaviour and the buildings’ envelope performance. The latter should be characterized under in-use conditions by estimating their in-use Heat Loss Coefficient (HLC). This work f...
Conference Paper
Los equipos de Bomba de Calor de Aire para Calentamiento de Agua (ASHPWH) son un sustituto eficaz de los sistemas convencionales de calefacción y agua caliente sanitaria (ACS) hacia la sostenibilidad energética. Este potencial de alta eficiencia es reconocido por la Directiva Europea 2009/28/EC, según la cual parte de la energía generada por las bo...
Conference Paper
An active learning based methodology has been designed and implemented for Thermal Engineering teaching by a collaborative group of teachers from the Thermal Engineering Department at the University of the Basque Country. The methodology has been successfully implemented in all the Engineering Schools of the 3 different Campuses the University is s...
Conference Paper
An active learning based methodology has been designed and implemented for Thermal Engineering teaching by a collaborative group of teachers from the Thermal Engineering Department at the University of the Basque Country. The methodology has been successfully implemented in all the Engineering Schools of the 3 different Campuses the University is s...
Conference Paper
Full-text available
Los equipos de bomba de calor (BC) son un reemplazo eficaz de los sistemas convencionales para calefacción, refrigeración y agua caliente sanitaria. Este potencial de alta eficiencia es reconocido por la Directiva Europea 2009/28/EC. En el proyecto EkimProVe se propone un sistema donde una BC se acopla a una fachada ventilada fotovoltaica (FV/PV)....
Chapter
And overall view of the European Project A2PBEER is placed in this work on it the innovative actions token into account within the energetic retrofitting of an administrative building are placed also the used monitoring system for both the previos and the post assessment of the building is deeply reviewed.
Article
Full-text available
In this paper, the energy performance of a solar thermal (ST) façade system is studied in relation to its connection to a district heating system. This concept allows for the direct use of ST heat in the building, while taking profit from the network for delivery/selling of excess heat and purchase of heat during periods of underproduction. The use...
Conference Paper
Full-text available
In this article it is presented an innovative façade system with a solar thermal system. The developed solar system can be classified as modular unglazed collector, designed for low temperature energy capture. It is compatible with a solar combined system that integrates a solar heat pump. The external appearance of the building remains untouched t...
Article
Minimum airflow rates are either recommended or required based on the number of occupants, the intended use of the space or the floor plan area. This paper focuses on a new proposal for Spanish Technical Building Code based on limitations of the ventilation using the CO2 concentration as an indicator. The aim of the proposal is to introduce indoor...
Article
Due to Horizon 2030 objectives, industry is committed to improving traditional auxiliary bi-drum boilers performance in existing plants. In this study, a new operation methodology for auxiliary bi-drum boilers has been developed to reduce the operational cost of the plant. Two new functioning modes have been defined as “hot standby mode” (HSM) and...
Chapter
Within the overall objective of reducing carbon emissions, existing building renovations must consider energy conservation and efficiency measures, but also take into account measures that promote the use of energy from renewable sources.Considering these key points, an energy renovation of a non-energy-efficient and nonsustainable office building...
Article
Full-text available
In the current context of moving towards more sustainable construction, advanced façade systems that integrate solar collecting devices represent a commitment with future trends that combine renewable technologies with building skins. This paper describes a real experience when combining a novel unglazed solar collector based on sandwich panel tech...
Conference Paper
Full-text available
El 50% de la energía final consumida en Europa es utilizada para calefacción y refrigeración, de la cual el 75% proviene de la quema de combustibles fósiles (derivados de petróleo y gas natural). El 45% de la energía para calefacción y refrigeración es empleada en el sector residencial. En el caso de la Comunidad Autónoma Vasca, el 53% de la energí...
Conference Paper
Full-text available
Heat pump systems are an effective replacement to conventional heating and cooling fossil fuel burning systems.Heat pump systems can supply more heat just with the same amount of energy input used for conventional heaters [1]. This potential for high efficiency is recognized by the European Directive 2009/28/EC [2], where a portion of the energy ca...
Conference Paper
Full-text available
Despite the availability of advanced calculation tools, there can be found an important gap between predicted energy performance and the actual energy consumption of the buildings. The main influencer in the ‘performance gap’ is the actual building envelope thermal performance together with the user behavior and the building systems actual performa...
Article
In this article, the results of the hygroscopic characterization of a building material called ‘picón’, consisting of cement mortar and pyroclastic deposits from volcanic eruptions, are presented. The material obtained is used for the manufacture of blocks used in the construction of buildings in the Canary Islands. Picón is a heterogeneous materia...
Conference Paper
This work presents the first results of the use of a youtube themed channel designed expressly to be used as an inverted learning tool of the subject of Thermal Engineering at the University of the Basque Country (UPV-EHU), within a proposal that promotes the active and autonomous learning from the students; The final objective of the proposal is t...
Article
Full-text available
The requirement of a minimum air flow rates in dwellings is new in the Spanish regulation. The value of the minimum air flow rate for each room of the dwelling depends on the type of room, its occupation or its dimensions. To achieve these air flow rates, in the houses built in the Basque Country, mechanical ventilation systems are installed, usual...
Article
Full-text available
The development of mathematical models that can reliably simulate the energy performance of a whole building or a building component with minimal discrepancy between the real and simulated data is a major aim of Building Physics science. In order to create models that accurately represent real physical phenomena it is necessity to perform tests on...
Article
Full-text available
Experimental work to assess the thermal performance of complex building components often requires testing under real and therefore variable conditions. The PASLINK methodology developed during many years by a European network of outdoor test centres is a dynamic methodology that provides high quality data sets and makes it possible to study the the...
Conference Paper
Full-text available
Los edificios consumen alrededor del 40% de la energía total consumida en Europa. La rehabilitación eficiente energéticamente desempeña un papel esencial en el cumplimiento de los objetivos 20-20-20 de la UE. Se puede lograr un mayor impacto a través de intervenciones en edificios no residenciales, dado que su consumo de energía es un 40% superior...
Article
Although there are specific rules in the standard ISO 10211 for the characterization of thermal bridges, they are mainly focused on steady state calculations to obtain the linear thermal transmittance (Ψ) or the temperature factor at the internal surface (fRsi). These parameters are respectively indicators of the additional heat flow and the risk o...
Article
Full-text available
The approval of the Technical Building Code has meant major changes in the construction of multi-storey buildings in Spain. One of the most important revisions, with respect to the buildings erected prior to the Technical Building Code, has been the obligation to ventilate each one of its rooms. Depending on the use and occupancy a minimum flow rat...
Article
Nowadays, several regulations exist covering different general guidelines that must be considered in order to decrease the energy demand in residential buildings. One of the main ones consists in increasing the insulation of the building envelope with the aim of minimizing heat losses or gains. As a result, a proper treatment of thermal bridges and...
Article
One of the variables that have a greater influence on the determination of the moisture buffering capacity of a material to be used as inner surface layer of an enclosure is the value of the vapour resistance of the surface film layer. In this paper, the influence of such a surface resistance on the moisture buffering value (MBV) is studied by mean...
Article
The importance of calculating the effect of thermal bridges in building energy demand is growing. This is because new energy saving regulations are being applied in different countries making builders to increase the level of insulation in homes, and therefore raising the percentage of thermal bridges in total heat loss.This paper makes an introduc...
Article
One of the most simple and intuitive methods employed to characterise a building solution in transient regime is based on the use of response factors. Its acquisition by calculation is an appropriate approach when the thermo-physical properties of the materials are known. However, in a great number of building products these data are not available...
Article
This article presents the results of a study about the corrosion behaviour of four aluminium alloys (EN AW 2024, 3003, 6063, and 1050) in contact with a commercial thermal storage material based in the Glauber’s salt (Na2SO4·10 H2O). Results indicate that the Al 2024 alloy is not compatible with this material due to the extense formation of NaAlCO3...
Article
This article explains the adjustment procedure of a calibrated hot-box unit and the execution of the corresponding tests to measure the dynamic thermal properties of walls needed to calculate the thermal load of buildings. The results of a test for a heterogeneous wall are also presented, in a dynamic temperature rating. These results are compared...

Projects

Projects (2)
Project
The objective of the project is to develop and implement an inverted learning methodology that is based on a personal work space of the student outside the classroom, by means of a YouTube videochannel dedicated to video tutorials developed by the teaching team.