Fredrik Bajers Vej 5
Postboks 159 9100 Aalborg
Telefon: 9940 9940
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Title: A two-pipe system for simultaneous heating and cooling of office buildings
21.06.2017 kl. 13.00 - 17.00
Simultaneous heating and cooling demand occurs quite frequently in office buildings. A four-pipe system is the traditional configuration to provide heating to one room and cooling to another room by operating two separate hydronic circuits.
This thesis presents the energy analysis of a novel two-pipe system able to handle heating and cooling demand simultaneously by operating only one hydronic circuit with water temperatures of about 22 °C all year round, no matter whether a single room needs heating or cooling. This configuration shows two main benefits. First, waste heat from warm rooms in a building can be transferred to cold rooms. Second, sustainable energy sources can be easily exploited.
To analyze the energy performance of the system, a simulation-based study was conducted. A detailed mathematical model of the system was developed with the programming language Modelica. Several simulation experiments were carried out under different conditions in terms of climate, occupancy, control strategy and building envelope.
Simulation results for a typical office building show that the novel two-pipe system is able to use less energy than a conventional four-pipe system thanks to three effects: useful heat transfer from warm to cold rooms, higher free cooling potential and higher efficiency of heat pumps. In particular, annual primary energy savings of approximately between 12-18% can be obtained.
Alessandro started his PhD at the Danish Building Research Institute/Aalborg University in 2013. His research focuses on the design, modeling and simulation of innovative HVAC systems for office buildings. He is currently participating in two international projects: the IEA-EBC Annex 60 and IEA-ECES Annex 31. The IEA-EBC Annex 60 project aims to develop the new generation of computational tools for building and community energy systems based on the Modelica programming language. The IEA-ECES Annex 31 project addresses the integration, control and automation of energy storage with energy efficient buildings and districts. Alessandro holds a MSc in Aerospace Engineering from the University of Padova, Italy.
Alessandro Maccarini defends his PhD 21 June 2017 at Aalborg University Copenhagen, Room 2.3.044.
All interested are invited to attend the PhD defence. After wards, SBi will host the reception.
Statens Byggeforskningsinsitut (SBi)
Room 2.3.044, Aalborg University Copenhagen, A.C. Meyers Vænge 15, 2450 København SV
27.09.2017 kl. 09.00 - 16.30
In honor of Professor Jane Parpart’s many years of contributions to our department, FREIA and CHI are hosting a special workshop titled Gender, Insecurities and Silences during Conflict and Peacebuilding 27th of September, 2017. We have invited a select group of junior and senior scholars across disciplinary boundaries to explore this issue further. We would like to open up this occasion also for other members of the department and university. Please sign up if you are interested in listening to the presentations (session A), take part in the discussions (session B), or both.
27.09.2017 kl. 13.00 - 16.00
Institut for læring og filosofi, Aalborg Universitet og Aalborg Universitetshospital har den glæde at invitere til ph.d.-forsvar ved sygeplejerske MLP Susanne Winther, Forskningsenhed for Klinisk Sygepleje, som forsvarer ph.d.-afhandlingen: FÆLLES FØLGESKAB -ET AKTIONSFORSKNINGSPROJEKT OM PATIENTOVERGANGE FRA INTENSIV TIL STAMAFSNIT
27.09.2017 kl. 16.00 - 18.00
September 27th from 16.00 - 18.00, we invite you to a nation-wide early premiere of Phie Ambo’s new exciting documentary “...when you look away”. The screening will be followed by a debate live-streamed directly from Skylab at DTU, which you can participate in by sending questions via SMS, twitter and facebook.
28.09.2017 kl. 09.00 - 12.00
Open workshop with Dr. Benjamin Schögler, Co-founder and Creative Director at Skoogmusic. Ben is passionate about making music accessible for everyone and was part of the NESTA team that invented SKOOG - an instrument that anyone can play.
28.09.2017 kl. 10.00 - 13.00
Anja Sloth Ziegler, Department of Chemistry and Bioscience will defend her thesis on: "The microbial community in fouling membrane bioreactors: Distribution and diversity of important bacteria"
28.09.2017 kl. 15.00 - 16.30
Præsentation ved henholdsvis professor og lektor ved Institut for Sociologi og Socialt Arbejde på AAU, Annick Prieur og Sune Qvotrup Jensen.
29.09.2017 kl. 09.00 - 17.00
Seminar on animation and visual research dissemination. Learning from state-of-the-art case-studies and ongoing research projects, we will discuss how 2D and 3D-visualisation and animation, narrative structures, and levels of temporal information can be combined in functional animation e.g. for educational or didactic purposes, or in the presentation or development of scientific material.
29.09.2017 kl. 09.00 - 17.30
This workshop brings together scholars from philosophy and history of science to help shed light on epistemological and historical cases of ‘evidence-based’ (or ‘informed’) policy and policymaking.
29.09.2017 kl. 13.00 - 16.00
Klinisk Institut, Aalborg Universitet og Aalborg Universitetshospital har den glæde at invitere til ph.d.-forsvar ved læge Jesper Moesgaard Rantanen, Nyremedicinsk Afdeling, som forsvarer ph.d.-afhandlingen: "Arrhythmias, Heart Rate Variability and Marine n-3 Polyunsaturated Fatty Acids in Patients on Chronic Dialysis"
29.09.2017 kl. 14.00 - 15.30
The seminar is open to all interested researchers!
02.10.2017 kl. 17.00 - 18.00
Mød uddannelsens faglige leder, Dorte Ågård, og hør mere om det faglige indhold. Bliv klogere på uddannelsens perspektiver og relevans i forhold til dit eget arbejdsområde eller interesseområde. Få svar på alle dine faglige og praktiske spørgsmål.
03.10.2017 kl. 13.00 - 16.30
Hør om de væsentligste ændringer, der forventes at komme i bygningsreglement BR18
04.10.2017 kl. 09.00 - 16.00
På dette kurset kan du lære, hvordan gulve, vægge og installationer kan udføres, så kravene i BR15 er overholdt, og så der opnås størst mulig sikkerhed mod skader fra vand og fugt.
04.10.2017 kl. 10.00 - 17.00
Writing has always been a key discipline to master within political sciences and humanities. Today writing articles and getting them published is more important than ever. Be it for the PhD-student using a collection of peer-reviewed and published articles as basis for the PhD, or for the young PhD aiming at a university career.
04.10.2017 kl. 13.00 - 17.00
Klinisk Institut, Aalborg Universitet og Aalborg Universitetshospital har den glæde at invitere til ph.d.-forsvar ved Steen Møller Hansen, Klinisk Epide-miologisk Afdeling, Aalborg Universitetshospital, som forsvarer ph.d.-afhandlingen: Opportunities and Limitations for Provid-ing Early Defibrillation of Out-of-hospital Cardiac Arrest Patients