TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Sawant, Parantapa A1 - Meftah, Naim A1 - Pfafferott, Jens T1 - Multiperspective Analysis of Microscale Trigeneration Systems and Their Role in the Crowd Energy Concept JF - Journal of Electronic Science and Technology N2 - The energy system of the future will transform from the current centralised fossil based to a decentralised, clean, highly efficient, and intelligent network. This transformation will require innovative technologies and ideas like trigeneration and the crowd energy concept to pave the way ahead. Even though trigeneration systems are extremely energy efficient and can play a vital role in the energy system, turning around their deployment is hindered by various barriers. These barriers are theoretically analysed in a multiperspective approach and the role decentralised trigeneration systems can play in the crowd energy concept is highlighted. It is derived from an initial literature research that a multiperspective (technological, energy-economic, and user) analysis is necessary for realising the potential of trigeneration systems in a decentralised grid. And to experimentally quantify these issues we are setting up a microscale trigeneration lab at our institute and the motivation for this lab is also briefly introduced. KW - Energietechnik Y1 - 2015 UR - http://manu50.magtech.com.cn/Jwk_jest/EN/abstract/abstract1281.shtml SN - 1674-862X SS - 1674-862X VL - 13 IS - 3 SP - 206 EP - 211 ER - TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Pfafferott, Jens A1 - Frietsch, Mario A1 - Lang, Tobias A1 - Schmelas, Martin T1 - Kalorische Messungen an thermisch aktivierten Bauteilsystemen JF - Messtechnik im Bauwesen, Bauphysik KW - Bauteil KW - Messung Y1 - 2015 VL - 37 SP - 48 EP - 50 ER - TY - CHAP U1 - Konferenzveröffentlichung A1 - Sawant, Parantapa A1 - Pfafferott, Jens T1 - Experimental Analysis of Microscale Trigeneration Systems to Achieve Thermal Comfort in Smart Buildings T2 - 36. AVIC Madrid Y1 - 2015 SP - 309 EP - 319 S1 - 11 ER - TY - BOOK U1 - Buch A1 - Pfafferott, Jens A1 - Kalz, Doreen E. A1 - Koenigsdorff, Roland T1 - Bauteilaktivierung KW - Bauteil KW - Aktivierung Y1 - 2015 SN - 978-3-8167-9357-1 SB - 978-3-8167-9357-1 SP - 227 S1 - 227 PB - Fraunhofer-IRB-Verlag CY - Stuttgart ER - TY - CHAP U1 - Buchbeitrag A1 - Kalz, Doreen E. A1 - Pfafferott, Jens T1 - Erfahrungen aus dem Gebäudemonitoring T2 - Nutzerzufriedenheit in Bürogebäuden KW - Gebäude KW - Monitoring Y1 - 2015 SN - 978-3816793052 SB - 978-3816793052 EP - 69 PB - Fraunhofer-IRB-Verlag CY - Bonn ER - TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Rosenfelder, Madeleine A1 - Koppe, Christina A1 - Pfafferott, Jens A1 - Matzarakis, Andreas T1 - Effects of ventilation behaviour on indoor heat load based on test reference years JF - International Journal of Biometeorology N2 - Since 2003, most European countries established heat health warning systems to alert the population to heat load. Heat health warning systems are based on predicted meteorological conditions outdoors. But the majority of the European population spends a substantial amount of time indoors, and indoor thermal conditions can differ substantially from outdoor conditions. The German Meteorological Service (Deutscher Wetterdienst, DWD) extended the existing heat health warning system (HHWS) with a thermal building simulation model to consider heat load indoors. In this study, the thermal building simulation model is used to simulate a standardized building representing a modern nursing home, because elderly and sick people are most sensitive to heat stress. Different types of natural ventilation were simulated. Based on current and future test reference years, changes in the future heat load indoors were analyzed. Results show differences between the various ventilation options and the possibility to minimize the thermal heat stress during summer by using an appropriate ventilation method. Nighttime ventilation for indoor thermal comfort is most important. A fully opened window at nighttime and the 2-h ventilation in the morning and evening are more sufficient to avoid heat stress than a tilted window at nighttime and the 1-h ventilation in the morning and the evening. Especially the ventilation in the morning seems to be effective to keep the heat load indoors low. Comparing the results for the current and the future test reference years, an increase of heat stress on all ventilation types can be recognized. KW - Thermische Belastung KW - Ventilator Y1 - 2015 SN - 1432-1254 SS - 1432-1254 U6 - https://dx.doi.org/10.1007/s00484-015-1024-8 DO - https://dx.doi.org/10.1007/s00484-015-1024-8 VL - 60 IS - 2 SP - 277 EP - 287 PB - Springer CY - Berlin und Heidelberg ER - TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Coydon, Fabien A1 - Herkel, Sebastian A1 - Kuber, Tejas A1 - Pfafferott, Jens A1 - Himmelsbach, Sascha T1 - Energy performance of façade integrated decentralised ventilation systems JF - Energy and Buildings N2 - The current methods used to assess the energy performance of ventilation devices do not consider all the aspects necessary for a comprehensive evaluation of decentralised ventilation concepts and can only be partially adapted to their needs. In order to improve the energy evaluation and to ensure the comparability of different systems, a calorimetric method was developed and implemented in test facilities for the evaluation of two decentralised devices: one equipped with a recuperative counter flow heat exchanger and one with a regenerative heat exchanger. This method, based on direct measurements of the heating load in an insulated test room, includes the effect of the electrical consumption of the fans on the energy performance of the ventilation devices. The calorimetric evaluation method was extended to a seasonal evaluation on the basis of a heating-degree-day method implemented for a warm, a cool and a moderate location in Europe: Athens, Strasbourg and Copenhagen. All the results are above 50% efficiency for both devices, even in Athens where the use of heat recovery ventilation is not usual. KW - Belüftung KW - Gebäudeleittechnik KW - Klimatechnik KW - Fassade Y1 - 2015 SN - 0378-7788 SS - 0378-7788 U6 - https://dx.doi.org/10.1016/j.enbuild.2015.08.015 DO - https://dx.doi.org/10.1016/j.enbuild.2015.08.015 VL - 107 SP - 172 EP - 180 ER -