
Peter RemmenRWTH Aachen University · Institute for Energy Efficient Buildings and Indoor Climate
Peter Remmen
Master of Science
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28
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Publications (28)
In order to realize an energy efficient and emission-free heat and cold supply in urban areas, 5th Generation District Heating and Cooling (5GDHC) networks are a promising technology. In 5GDHC networks, the control of the network temperature is crucial since it affects the efficiency of connected heat pumps and chillers, the heat losses (or gains)...
Urban building energy models become increasingly important to estimate the dynamic heat demand of building groups, when planning energy saving measures. Archetype solutions can help to reduce the necessary data to model buildings in the urban context. Nevertheless, additional data and Bayesian calibration can be used to reduce the uncertainty in es...
This paper presents a novel webtool, called Energy Hub Design Optimization tool, for designing and optimizing complex multi-energy systems. The tool determines the optimal technology selection and sizing of all energy conversion units of a supply system while satisfying heat, cold, electricity, and hydrogen demands. A large variety of different tec...
Bidirectional low temperature networks (BLTNs) are a promising technology to drive decarbonization of the heating and cooling sector. The energy efficiency of a BLTN strongly depends on the heating and cooling demands of the connected buildings and their simultaneity. In order to evaluate the efficiency of a BLTN, a novel metric, called Demand Over...
Bidirectional low temperature networks (BLTN) enable a sustainable and energy efficient heating and cooling supply of urban districts. Operating network temperatures close to the surrounding keep thermal losses to a minimum and enable an efficient recovery of local low-grade waste heat sources. For the planning of BLTNs, there is a lack of establis...
Bidirectional low temperature networks (BLTN) are a sustainable and energy efficient concept to supply urban districts with heating and cooling. In this work, we present a linear program (LP) for designing BLTNs. Based on a superstructure, the optimal energy conversion units are selected and sized for each building connected to the network and an e...
The global climate targets lead to a growing interest in supplying buildings with heat and cold more efficiently. In districts with simultaneous heating and cooling demands, bidirectional low-temperature networks can be an efficient alternative to balance local demands within one thermal network. In order to examine this concept in more detail, thi...
Dynamic simulation and optimization of energy systems at urban level becomes increasingly important as an additional decision criteria for planning and operation. Essential in this context is the dynamic heating and cooling demand of buildings. Often building archetypes are used to depict the individual characteristics of buildings. While in averag...
City districts have a large potential to reduce greenhouse gas emissions by usage of energy efficiency measures. Urban energy models (UEM) can be useful to analyze the impact of different energy efficiency actions on city districts. While simulation of demand data with high spatial and temporal resolution is often necessary to evaluate retrofit mea...
A well-known problem in the dynamic simulation of buildings energy consumption are the discrepancies between the simulated and measured data, which call for calibration techniques to obtain more accurate and reliable building models.
The most recognized calibration techniques use statistical indices to assess and improve the quality of simulation...
The optimal design, sizing and operation of building energy systems is a complex problem due to the variety of available generation and storage devices as well as the high-resolution input data required for considering seasonal and intraday fluctuations in the thermal and electrical loads as well as renewable supply. A common measure to reduce the...
The energy supply of buildings in urban contexts is undergoing significant changes. The increase of renewable sources for electrical and thermal energy generation will require flexible and secure supply systems. To reflect and consider these changes in energy systems and buildings, dynamic simulation is one key element. Sparse and limited access to...
In addition to the design of reduced order building models, parameterization of these models is a crucial factor for using dynamic thermal building simulations on urban scale. One approach to simplify data acquisition and model parametrization is the use of statistical data about building archetypes to enrich given individual information. The prese...
AixLib is a Modelica model library with focus on modeling the dynamic behavior of buildings, HVAC equipment and distribution networks to enable integrated analyses of energy systems on the scales from single building to city district. The library is available at www.github.com/RWTH-EBC/AixLib. In this paper, we present the library and its integrati...
In many urban contexts, energy systems are undergoing fundamental change towards more interconnected system layouts. Appropriate planning tools are necessary to guide this transition towards more energy efficient system designs. Thus, the aim of this paper is to present workflow automation approaches to model buildings and district energy systems f...
TGA-Kongress 2016 - Innovationen in der Raumlufttechnik, Forschung und Wissenschafton, Berlin (Germany), 14 Apr 2016 - 15 Apr 2016
For building performance simulations of multiple buildings, varying objectives and data availability lead to different requirements for various model applications. Flexibility regarding spatial discretization, parameterization and process automation can offer an alternative to specifically tailored models for each application. We present adaptive l...
Buildings become increasingly integrated to reduce energy and peak power and to increase occupant health and productivity, leading to complex building design. Building Performance Simulation (BPS) is a key element in the design of energy efficient buildings, and there is increasing interest in using the Modelica modelling language for BPS. The Inte...
Urbanization causes increasing energy demand within cites. To identify energy saving potentials on city district scale, integral planning approaches are necessary. This paper describes the development of a city information model (CIM) with focus on buildings and energy systems. It accounts for different building and energy system types plus geometr...
There are different options for modelling indoor and outdoor long-wave radiation exchange in thermal building models for simulations at urban scale. For improving these building models, a good trade-off between accuracy and simulation time is a major challenge. To evaluate different radiation models for thermal network building models, we compared...