Developing and implementing toolbox integrations for storing excess heat generated by a PVT system

This thesis addresses a critical challenge in the field of renewable energy, focusing on the efficient utilization of Photovoltaic-thermal (PVT) systems. Despite their promising role in sustainable energy production, PVT systems often grapple with excess heat generation, impacting their efficiency and longevity. The primary objective of this...

On the design of 5GDHC substation control systems

This paper presents challenges in the control of 5GDHC networks and proposes an approach for the robust control design of these networks. Temperatures are low and temperature differences are small in 5GDHC networks, in order to minimise heat losses in the distribution network and directly utilise low-temperature heat sources. Therefore, the...

Heat losses in ATES systems: The impact of processes, storage geometry and temperature

The technical and economic success of an Aquifer Thermal Energy Storage (ATES) system depends strongly on its thermal recovery efficiency, i.e. the ratio of the amount of energy that is recovered to the energy that was injected. Typically, conduction most strongly determines the thermal recovery efficiency of ATES systems at low storage...

Short-term operational stability of 5th generation district heating and cooling substations: Performance improving control strategies for prosumer substations in an ATES ring network

Energy demand for heating and cooling makes up 73\% of total energy use of buildings [2]. This figure is expected to increase over the coming decades, as demand for cooling energy may rise in the Netherlands due to climate change. The heating and cooling of buildings are at relatively low temperature compared to the industry and thus allowing...

Advancing Adoption of Aquifer Thermal Energy Storage: a New Evaluation Method to Support Local Decision-Makers: Assessment of the Technical and Commercial Potential of Aquifer Thermal Energy Storage in New York State Considering the Requirements and Interests of Key Stakeholders

Aquifer Thermal Energy Storage (ATES) is a geothermal technique that is an important component in the transition towards renewable energy in the heating and cooling industry, which accounts for half of the world's energy consumption. However, the technology has not yet been implemented in many countries. The main reason is that extensive...

Interaction between multiple ATES systems: Analysis of thermal and geohydrologic performance

Aquifer thermal energy storage (ATES) is a sustainable technology that provides thermal energy to buildings in temperate climates. The principle of ATES is to temporary store thermal energy in aquifers in a warm and cold well in order to use this thermal energy for heating and cooling in the next season. Because the available subsurface space is...

Potential of polymer sewage heat exchangers with enhanced thermal properties

Buildings contribute to 30% of global CO₂ emissions and consume 40% of the global energy supply (Yang et al., 2014). Heating and cooling requirements of the buildings form the major part of the energy consumption in buildings (Culha et al., 2015). Thus to solve this problem, one of the solutions currently being<br/>looked at is to...

Ates Smart Grids: Optimal Use Of Subsurface Space In High Density Ates Areas

Aquifer Thermal Energy Storage (ATES) systems provide buildings with sustainable space heating and cooling by seasonally storing and recovering thermal energy in the subsurface. The increased use of ATES in Dutch cities resulted in dense use of ATES in urban aquifers, often up to congestion level. Because thermal interactions among neighbouring...