Panel or Check?: Assessing the Benefits of Integrating Families in Fuel Poverty to Energy Communities

This research raises the possibility for households in energy poverty to participate in energy communities to alleviate their energy costs, having their investment costs paid by public institutions. The study starts from the current solution for vulnerable households based on public subsidies to reduce energy costs, which neither addresses the...

From Nuisance to Nurture: Using Residual Heat for Low-Temperature Local Heating Systems in Cities

According to the Paris Agreement, cities need to be carbon neutral by 2050. This entails a dramatic transition from a fossil fuel based built environment to one entirely running on renewable energy. In many European cities this means moving away from natural gas as prime source. At present, three options are generally considered as alternatives...

On Capex Forecasting of District Heating Networks in Existing Neighbourhoods

The energy required for space heating amounts to approximately 70% of the total energy demand of existing buildings in Europe. Decarbonization of the heat demand of existing buildings is one of the grand challenges in the energy transition and sustainable district heating is a promising solution in many neighborhoods. The construction cost of...

Developing a Multi-Criteria Model for Energy Retrofitting of Heritage Buildings

The city of Amsterdam has the ambitious greenhouse emission reduction targets: to achieve a 95% reduction in emissions by 2050 and to phase out natural gas by 2040. Disconnecting the existing building stock from natural gas requires a switch to alternative energy-efficient sources, making optimal use of heat pumps and sustainable heating...

Practising What You Teach and Preach: Working for a Sustainable University Is a Verb

Universities and other institutes of higher education can be at the forefront of sustainable development and climate action. As organisations that develop knowledge, conduct research, and valorise their experience, universities are capable of testing and investigating new approaches, models, strategies, technology… The process thereof can be...

Sustainability Aspects in Decision-Making Processes for Biofuel Production and Biobased Products

Integrating low-carbon technologies within biorefineries, with applications targeting energyefficient separation systems, is essential to achieving net zero emissions in the coming years. To address this target, we investigated potential biorefinery pathways featuring process intensification in the bioethanol and biodiesel industries. The role...

An improved approach for on-board distribution system robustness estimation in early-stage ship design

Reliability and survivability play a key role in the ship operation and ship design process of navy ships, but increasingly also of complex commercial vessels. These requirements prove relevant for different elements within the ship design scope, including the distribution system design of data, energy and fluid (water, fuel, oil, etc.). In...

Comparative analysis of alternative fuels for marine SOFC systems

To continue its operations, the marine industry needs to comply with emission regulations. Solid Oxide Fuel Cells (SOFCs) are considered a promising solution, since it can generate energy athigh efficiency and low NOX, SOX and particulate matter emissions. Another advantage of SOFCsis fuel flexibility, meaning several fuels can be applied in...

The Design Knowledge Management Square - a Framework for Early Stage Complex Ship Design

This paper presents and demonstrates a new design thinking framework for early stage complex ship design, called the Design Knowledge Management Square (DKMS) framework. The DKMS framework provides a structure that explicitly incorporates the collaborative nature of complex ship design, contrary to other models or frameworks that primarily focus...

Monitoring of long term deformations in Bobova tunnel

The 189.50 m long Bobova tunnel constructed in 2005 is located on the D404 state highway and passes under a part of the Vežica – Sušak town area in Rijeka. The overburden above the tunnel pipe is between 2 m to 18 m thick. The rock mass along the tunnel route is made up of karst deposits (transient carbonate breccia, dolomite and limestone...

Life-Cycle Management Model for Tunnels

Tunnels are a vital link in transport networks which represent a significant investment in all life cycle phases from planning, investigation works, construction and operation. Decisions through the whole life cycle of a tunnel should be based on solid facts and reliable data especially in the context of considerable impacts on both the...

Revision of TRV Requirements for the Application of Generator Circuit-Breakers

The requirements imposed on generator circuitbreakers greatly differ from the requirements imposed on other transmission and distribution circuit-breakers. Due to the location of installation between the generator and the associated step-up transformer, a generator circuit-breaker must meet high technical requirements with respect to rated...

Simulation of arc models with the block modelling method

Simulation of current interruption is currently performed with non-ideal switching devices for large power systems. Nevertheless, for small networks, non-ideal switching devices can be substituted by arc models. However, this substitution has a negative impact on the computation time. At the same time, these simulations are useful to design...

Influences of characteristic size of contact bodies on rolling contact

The rolling contact of elastic bodies (upper body and lower body) can be analyzed with the Hertz theory and the Kalker’s model. It is generally believed that the width of the contact area should be much smaller than the characteristic size of each elastic body, to ensure that the half-space assumption is valid. However the definition of “much...