Modular split-type heat pump with compact and silent façade-integrated outdoor unit

William Monteleone,Mattias Rothbacher,Christof Drexel,Fabian Ochs,J Kurnitski,M Thalfeldt

doi:10.1051/e3sconf/202124606008

William Monteleone, Mattias Rothbacher + Show 4 more

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https://doi.org/10.1051/e3sconf/202124606008

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Abstract

For future buildings (nZEBs according to EPBD) efficient and cost-effective heating systems with a high share of renewable energy ar0e1 r1equired. Heat pumps (HP) are considered as one of the key technologies in the building sector. However, in particular in high-density housing areas, source exploitation is strongly limited. Accordingly, the market in Austria does not currently provide real alternatives to apartment gas or electric boilers. Split type HPs with low power can be made compact and cost effective and thus offer new possibilities. However, split type HPs represent a real alternative only if the acceptance for them can be improved by means of improved modularity, design, architectural attractive integration in the building envelope and reduced sound emissions. The goal of the Austrian FFG research project FitNeS is the development and optimization of modular split HPs with compact and silent façade-integrated outdoor units. The outstanding features of the concept are a modular design with a high degree of prefabrication and representing a visually and architectonically attractive, economic and sustainable solution for both new constructions and renovations. Different concepts of façade-integrated outdoor units will be developed and evaluated with regard to design, façade construction, accessibility (for maintenance), building physics, efficiency, etc. on the basis of the technical and non-technical boundary conditions.

Highlights

The European Building Performance Directive (EPBD) 2010/31/EU, lastly updated with the Directive 2018/844 [1] of the European Parliament, demands that member countries should reduce greenhouse gas emissions of 40% by 2030 compared to the emissions in 1990
Whether this goal can be realistically achieved or not, heat pumps are regarded as a promising solution to successfully reach the decarbonisation of the building sector their spreading is often hindered by technical difficulties and socio-economic constraints
A novel micro-split heat pump for domestic hot water purposes is being developed at the University of Innsbruck through extensive simulation and laboratory work

Summary

Introduction

The European Building Performance Directive (EPBD) 2010/31/EU , lastly updated with the Directive 2018/844 [1] of the European Parliament, demands that member countries should reduce greenhouse gas emissions of 40% by 2030 compared to the emissions in 1990. Austria has stated the target of achieving full carbon neutrality by 2040 (10 years earlier than the European target) and 100% renewable electricity consumption by 2030 [2][3]. Whether this goal can be realistically achieved or not, heat pumps are regarded as a promising solution to successfully reach the decarbonisation of the building sector their spreading is often hindered by technical difficulties and socio-economic constraints. In renovation cases, compared to new constructions, the source accessibility is even more constrained In this context, the Austrian market does not currently provide

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