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Energy performance comparison of ventilation-based heating versus water-based heating systems in an efficient residential building
Shirani, Arsalan; Merzkirch, Alexander; Leyer, Stephan et al.
In pressIn Fluid Dynamics & Material Processing
Peer reviewed
 

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Keywords :
Heat recovery ventilation; Air based heating; Floor heating; Heat pump; Efficient buildings; Electrical energy demand
Abstract :
[en] The application of air-based heating systems as a possible approach to reduce the construction costs in highly efficient residential buildings is becoming popular. Air-based heating systems have been well-known for their usage in passive houses during the past three decades. Available studies on such systems tend mostly to focus only on comparing exhaust air heat pump technology with conventional systems in efficient buildings. Moreover, most of the existing studies ignore the usual presence of the electrical heaters as backup. Besides, a comprehensive study and comparison between different air-based heating system concepts is still missing. In this study, four different air-based heating system concepts separated by the type of heat source of heat pump for heating and domestic hot water are defined. These systems are compared to four conventional heating system, including floor heating and direct electrical system employing dynamic annual simulations. According to simulation results, the systems with floor heating have shown the best system efficiencies and the lowest energy demand in comparison to the other systems. The main reason for this was the lower supply temperatures of the floor heating systems. Between the air heating systems, the system equipped with an outdoor air heat pump showed a better energy performance than an exhaust air system. The main reason for this could be attributed to the power limitation of exhaust air heat pump systems.
Disciplines :
Energy
Author, co-author :
Shirani, Arsalan ;  University of Luxembourg > Faculty of Science, Technology and Medecine (FSTM)
Merzkirch, Alexander
Leyer, Stephan ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Scholzen, Frank ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Maas, Stefan ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
External co-authors :
no
Language :
English
Title :
Energy performance comparison of ventilation-based heating versus water-based heating systems in an efficient residential building
Publication date :
In press
Event name :
International Conference on MATERIALS & ENERGY, ICOME2021
Event place :
Metz, France
Event date :
From 09-06-2021 to 11-06-2021
Journal title :
Fluid Dynamics & Material Processing
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 14 April 2022

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