果冻传媒

Positive Energy District Digital Twinning
Creating mechanisms to use decentral energy flexibility for active network management.

The unfolding energy transition is currently being hampered by emerging problems with capacity shortages in the infrastructures for electric power. Lack of systems integration and, especially, the absence of mechanisms to use decentral energy flexibility for active network management leads to acute stagnation of electrification of energy demand and greening of energy supply.

The development of a high- fidelity Full-Order Model for district Heating and Cooling NETworks
Developing (fit-for-purpose) modeling methods for the design and control of 5GDH networks.

District heating systems need to be further developed to decrease grid losses and exploit synergies, thereby increasing the efficiencies of production units. Moreover, district heating networks are becoming more complex due to, e.g., the variety of renewable generation systems and/or user demand profiles, lower distribution temperatures, the integration of heat storage for peak shaving, the usage of the network for both heating and cooling, and so forth. These next-generation networks (4GDH and 5GDH) are therefore much more difficult to design and, once in the ground, much more difficult to control compared to the conventional networks (3GDH). Therefore, the following project goals are defined.

• You will support decision makers, e.g., local governments, in developing and designing new district heating networks (5GDH).
• You will support the district heating operators in optimizing district heating control strategies (5GDH).

Principle lead: Camilo Rindt
Involved researchers: Michel Speetjens, Pieter-Jan Hoes, Lisanne Havinga
Involved groups: ME, BE
Postdoc: Yousef Damianidis Al Chasanti

Enlarging the role of solar energy for the decarbonization of heating and cooling in urban areas 
Developing conceptual system design for solar energy (thermal and electrical) and related components (for seasonal storage, energy management) considering buildings energy demand.

Although solar energy systems (PV and solar thermal) play a large role in the ongoing sustainable energy transition, the current solutions for integrating such systems in the built environment, are not yet well-aligned with the need for decarbonizing heat supply in winter and cooling in summer.

STABILIzing salT hYdrates for Thermochemical Energy Storage
Finding a stabilization that enlarges the present number of (dis)charging cycles with a factor of ten.

Fifty percent of our daily energy usage is in the form of thermal energy.  In view of the energy challenges ahead of us, compact heat storage offers opportunities to bridge the mismatch between supply and demand of energy. Inorganic crystal hydrates have the potential to be used as storage media in heat batteries. Discharge happens via hydration reactions involving a phase transition of the crystal lattice due to water incorporation.  A heat battery consists of a packed bed of millimeter-sized salt hydrate tablets. The challenge is to stabilize beds of these particles as they undergo significant volume changes during (de)hydration cycles and agglomerate.

Phase Change Materials in Buildings
Developing a scientific framework for designing PCM鈥檚 with optimum properties.

Interactive optimization of PCM building integration and dedicated PCM development, including enhancement of PCM conductivity, PCM stabilization and tuning of supercooling will be carried out.

Integrated Energy Modeling of Buildings and their Clustering
Creating mechanisms to use decentral energy flexibility for active network management.

INBUILT focuses on below:

• INBUILT aims to develop a fully integrated dynamic bottom-up high-resolution model that can embody key features towards the simulation of Grid Interactive Buildings (GIBs). This model builds on the concept of modularity consisting of multiple components, each of which is composed of additional modules, and allowing for more flexibility in terms of possible system configurations and computational efficiency towards a wide range of scenarios to study different aspects of end-use. It will also incorporate future technological breakthroughs and multiple energy carriers in a detailed manner, such as the inclusion of heat pumps or Electric Vehicles and Demand Response actions, in view of energy transitions envisioning the full electrification of the heating and transport sectors.
   
• Also, the key idea is to develop dynamic clustering based on machine learning techniques to formulate dynamic virtual nodes of GIBs to give momentum and increase further the building-grid integration. Mechanisms on how to aggregate the flexibility of the dynamic clusters shall be investigated. It is important that the modelled flexibility of the cluster can be treated appropriately when matched with the operator needs or the market mechanisms. Of course, by providing flexibility, GIBs participating in the clusters shall be rewarded appropriately and to that end effective disaggregation techniques shall be investigated for efficient rewarding.

Principle lead: Christina Papadimitriou
Involved researchers: Koen Kok, Lisanne Havinga
Involved groups: EES, BE
Postdoc: Jeroen Markus

Twining thermal 鈥� electrical integrated storage to enable energy hubs
Designing integrated set of (thermal and electricity integrated) storage technologies for energy hubs.

The research will be part of the TwinTES project, with the direct link to the ongoing development of MOOI funded project 鈥� TROEF, to develop storage twining models that will integrate stack and system parameters of the complete set of storage units to determine optimal performance based on equivalent SoC / SoH values. The output would be optimal designs for integrated set of (thermal - electricity integrated) storage technologies to be deployed for dedicated hubs. It would also provide a comparison of the role and benefits between storage technology providers and storage service providers (hub entity) via the interaction with the integrated twinning platform. Coupling such storage models along with exploring relevant use-cases associated with the energy hub in the integrated twining platform will ensure high level of conversion efficiency while enlarging hub flexibility in accommodating larger share of renewables.

Principle lead: Phuong Nguyen
Involved researchers: Pieter Jan Hoes
Involved groups: BE, EES
Postdoc: Trung Tran

Modelling innovative and effective use scenarios for future domestic comfort towards a carbon-free world
Modelling consumer behavior of heating systems resulting in system design for energy-efficient retrofits.

User behaviour can be a barrier to achieving optimal CO2 reduction potential of the energy transition in the built environment. If not used appropriately, advanced energy systems may not achieve their potential, in some cases leading to increased rather than decreased energy demand for heating and cooling. This in turn can lead to decreased levels of acceptance of these solutions, and thus slow down the energy transition. On the other hand, behaviour change can also harbour significant potential for energy savings, for example in the form of changing conventions of comfort, that is not always tapped into in the design of future solutions.

A socio-technical approach for designing and implementing the heat transition in the built environment
Designing and integrating a socio-technical (Systems of Systems) approach in buildings.

The built environment is a key sector in need of transformation to reduce CO2 emissions and energy consumption.

An increasingly accepted notion to decarbonize energy sectors is the so-called 鈥渟ystem of systems鈥� (SoS) approach, in which all energy carriers (e.g. heating, cooling, H2, water etc.) are integrated into one system and in which the electricity carrier serves as the backbone. A 鈥淪oS鈥� approach is especially relevant for buildings and their energy systems鈥� transformation. Yet, transforming our energy systems in the built environment (and beyond) requires much more than technological changes. Technological innovations are intimately interwoven with social questions, for example relating to acceptance and ownership but also to access and justice.