HP_sim22 Workshop and Carnot Usermeeting

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Not much doubt about the use of heat pumps in buildings is next to deep thermal renovation one of the best and often the only option for the decarbonization of the building stock. District heating seems to be another promising solution in urban areas and existing buildings when the use of heat pumps is restricted and also technically and economically challenging (source exploitation, space restrictions, sound emissions, etc.). The decarbonisation of district heating is another challenge, where heat pumps are expected to play a significant role.

Heat pumps can be integrated in various ways in buildings and district heating systems:

large central high-temperature heat pumps in district heating,
medium-size heat pumps for block- or building-wise applications, or
small heat pumps integrated decentral apartment-wise.

The best option depends on the local conditions, the individual district heating system and the electricity mix as well as on the perspective of the building owner versus that one of the district heating system and the future development (energy policy).

From a general perspective, ideal system design, integration of renewables, optimization of the control are some of the design questions that need to be increasingly answered to enable maximum efficiency and, thus, maximum CO₂ reduction. Based on selected examples from engineering practice and research, this workshop will highlight the advantage of using simulation tools to develop optimal solutions from the building user and climate protection point of view.

University of Innsbruck, 2022-06-30 and 2022-07-01

Contact: Fabian Ochs (fabian.ochs@uibk.ac.at, 0043 512 507 63603)

Agenda

2022-06-30 Day 1: Simulation assisted design and optimisation of heat pumps and heat pump applications - from refrigerant cycle simulation to building and district heating integration

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Time	Speaker	Presentation
09:15 h		Arrival and Coffee
09:30 h	Fabian Ochs (UIBK, A)	Welcome and Introduction
Presentations Block 1 (Chair Fabian OCHS, UIBK)
10:00 h - 10:20 h	Thomas AUER (TUM, Transsolar, D)	Best Practice Examples of Simulation Based Design and Optimization
10:20 h - 10:40 h	Leo GALL (LTX, D)	Simulation of Refrigeration Cycles with Modelica
10:40 h - 11:00 h	Fabian Ochs (UIBK, A)	Integration of Heat Pumps in Buildings and District Heating Systems - evaluation on building and on energy system level
11:00 h - 11:20 h	Jürgen SCHNIEDERS (PHI, D)	Heat Pump Systems for Passive Houses
Break (20 min)
Presentations Block 2 (Chair Dietmar Siegele, FHI, IT)
11:40 h - 12:00 h	Matteo DONGELLINI (Uni Bologna, It)	Modelling of a dual source heat pump with Matlab/Simulink and Almabuild/Carnot
12:00 h - 12:20 h	Hai Trieu PHAN, Boris NEROT, Valery VUILLERME, Cedric PAULUS (CEA INES, F)	Design of thermodynamic cycle systems, optimization of the systems and their operation
12:20 h - 12:40 h	Jeremias SCHMIDLI, Dani CARBONELL (SPF, CH)	pytrnsys: an open source python based framework for TRNSYS simulations
12:40 h - 13:00 h	Anton SOPPELSA, Roberto FEDRIZZI (EURAC, IT)	Meta models for loads prediction toward optimisation of HVAC systems
Lunch-Break (60 min) + Lab Visit
Presentations Block 3 (Chair Georgios DERMENTZIS, UIBK)
14:00 h - 14:20 h	Christina BETZOLD (THN, D)	Simulation and operation of a heat pump system in a terraced house complex
14:20 h - 14:40 h	Thomas ROSSKOPF-NACHBAUR (Gasser Bauphysik Consult, FL/EIV, A)	Influence of climate change on the design of geothermal systems for heating and cooling purposes in non-residential buildings
14:40 h - 15:00 h	Admir MUSIC (AlpSolar, A)	Practical experience from building simulation and system planning and optimization in large-volume buildings
15:00 h - 15:20 h	Georgios DERMENTZIS (UIBK, A)	Heat Pump Concepts For Multi Apartment Buildings
15:20 h - 15:40 h	Tobias HATT (EIV, A)	Comparison of simulated and real measured load profiles of heat pumps and electricity applications as a basis for the evaluation of PV self-use
Break (20 min)
Presentations Block 4 (Chair Bernd Hafner, Viessmann)
16:00 h - 16:20 h	Martin HEISSLER (TUM, D)	Combining HVAC and district network simulations - a co-simulation approach
16:20 h - 16:40 h	Gerald ZOTTER (AEE INTEC, A)	How do handle oil content in simulations of heat pumps having a sink capacity of 5 kW
16:40 h - 17:00 h	Andreas HEINZ (IWT, A)	Semi-physical HP-Model for TRNSYS, Model Description and Application Examples
17:00 h - 17:20 h	Aurelien BRES (AIT, A)	Design and operation of heat pump systems using building simulation and linear optimization
17:20 h - 17:40 h	Alexander THÜR (UIBK, A)	System optimization of PV-Heat Pump Systems with local heat storage potentials
Wrap-up Fabian Ochs (UIBK, A) (20 min)
18:00 h	End
19:00 h	Visit of Lab Facilities at UIBK with Drinks and Barbecue

2022-07-01 Tag 2: CARNOT USER MEETING