Muditha Abeysekera
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View article: An effective methodology to quantify cooling demand in the UK housing stock
An effective methodology to quantify cooling demand in the UK housing stock Open
According to the 2020 UN emissions report an increase by 3oC of the average global temperature compared to pre-industrial levels is to be expected if no corrective measures are implemented. Alongside this, the UK Meteorological Office pred…
View article: A cooling demand estimator for housing communities in a warming world
A cooling demand estimator for housing communities in a warming world Open
Global warming has led to higher ambient temperatures in traditionally cold regions in Europe such as the UK. While implementing strategies in residential dwellings to meet the rising demand for cooling during hot summers is thus of intere…
View article: Dynamic verification of an optimisation algorithm for power dispatch of integrated energy systems
Dynamic verification of an optimisation algorithm for power dispatch of integrated energy systems Open
The urgent need to achieve net-zero carbon emissions by 2050 has led to a growing focus on innovative approaches to producing, storing, and consuming energy. Integrated energy systems (IES) have emerged as a promising solution, capitalisin…
View article: Battery digital twin: State of Charge and State of health estimation of LTO battery storage
Battery digital twin: State of Charge and State of health estimation of LTO battery storage Open
Battery storage is one of the key technologies in the transition toward net zero. Technology is quickly developing toward making energy grids digital. It is important to observe the condition of the battery in real time. A digital twin of …
View article: Methodology to Quantify Cooling Demand in Typical UK Dwellings
Methodology to Quantify Cooling Demand in Typical UK Dwellings Open
As per the 2020 UN emissions report, the average global temperature will increase by 3oC compared to pre-industrial levels if no corrective measures are taken and, with this, the frequency and intensity of heatwaves will also increase. Suc…
View article: A framework for the assessment of optimal and cost-effective energy decarbonisation pathways of a UK-based healthcare facility
A framework for the assessment of optimal and cost-effective energy decarbonisation pathways of a UK-based healthcare facility Open
In light of the global energy and climate crises, integration of low-carbon technologies into energy systems is being considered to mitigate the high energy costs and carbon footprint. The wide range of available capacities, efficiencies, …
View article: Optimal Operation of a Public Health Facility considering Energy Storage Retrofits
Optimal Operation of a Public Health Facility considering Energy Storage Retrofits Open
Integrated energy systems can benefit substantially from flexibility provision in their operations.This paper explores the operational cost optimisation of a UK public facility dedicated to health services by harnessing the flexibility gai…
View article: Dynamic simulation and control of the heat supply system of a civic building with thermal energy storage units
Dynamic simulation and control of the heat supply system of a civic building with thermal energy storage units Open
The integration of low‐carbon energy solutions into heating and cooling systems is a growing topic of interest towards the decarbonisation of the energy sector. The complexity of interactions between thermal‐hydraulic components in these s…
View article: Investigation of Transport and Structural Properties of Binary fluid Mixtures in the Near-Critical-Region via Molecular Dynamics Simulations
Investigation of Transport and Structural Properties of Binary fluid Mixtures in the Near-Critical-Region via Molecular Dynamics Simulations Open
Performing experiments in the near-critical region of a system, for accessing accurate dynamical and structural properties, pose a great challenge.However, molecular dynamics simulation studies complement experiments by providing access to…
View article: Dynamic Model of a Boiler Adaptable to Green Fuels for a Heating System
Dynamic Model of a Boiler Adaptable to Green Fuels for a Heating System Open
A mathematical model of a fuel combustion boiler suitable for system level studies of a heating system and adaptable to different combustible fuels is presented.The model considers the thermophysical properties of the flue gas and of the h…
View article: Modelling of Electrical-Thermal-Hydraulic System Interdependencies in 5th Generation District Heating and Cooling Networks
Modelling of Electrical-Thermal-Hydraulic System Interdependencies in 5th Generation District Heating and Cooling Networks Open
This work presents a method for steady state modelling and simulation of 5th Generation District Heating and Cooling (5GDHC) Networks.The method allows to characterise interdependencies between electrical, thermal, and hydraulic parameters…
View article: Dynamic modelling of ice‐based thermal energy storage for cooling applications
Dynamic modelling of ice‐based thermal energy storage for cooling applications Open
The development of accurate dynamic models of thermal energy storage (TES) units is important for their effective operation within cooling systems. This paper presents a one‐dimensional discretised dynamic model of an ice‐based TES tank. S…
View article: Optimal Operation of a Hydrogen Storage and Fuel Cell Coupled Integrated Energy System
Optimal Operation of a Hydrogen Storage and Fuel Cell Coupled Integrated Energy System Open
Integrated energy systems have become an area of interest as with growing energy demand globally, means of producing sustainable energy from flexible sources is key to meet future energy demands while keeping carbon emissions low. Hydrogen…
View article: Quantifying flexibility of industrial steam systems for ancillary services: a case study of an integrated pulp and paper mill
Quantifying flexibility of industrial steam systems for ancillary services: a case study of an integrated pulp and paper mill Open
Due to the increasing use of intermittent renewable generation, the power grid requires more flexible resources to balance supply and demand of electricity. Steam systems with turbine‐generators, which are widely used in industries, can be…
View article: Investment Analysis and Sizing of a Heat PUMP in a Multi-Vector Energy System: A Case Study at University of Warwick
Investment Analysis and Sizing of a Heat PUMP in a Multi-Vector Energy System: A Case Study at University of Warwick Open
This paper presents a methodology to evaluate the whole system energy-economic-environmental performance and the economic viability of integrating new technology options such as heat pumps, energy storage units to an existing multi-vector …
View article: Optimal Operation of a Multi-Energy System: A Case Study of University of Warwick’s Energy System
Optimal Operation of a Multi-Energy System: A Case Study of University of Warwick’s Energy System Open
There has been growing concerns about climate change, and more environmentally friendly operation of energy systems is of high interest to energy systems owners.This study presents the optimal operation of the University of Warwick's energ…
View article: Electrical properties of medium voltage electricity distribution networks
Electrical properties of medium voltage electricity distribution networks Open
An increasing amount of low carbon technologies (LCT) such as solar photovoltaic, wind turbines and electric vehicles are being connected at medium and low voltage levels to electric power networks. To support high-level decision-making pr…
View article: Thermal Dynamic Modelling and Temperature Controller Design for a House
Thermal Dynamic Modelling and Temperature Controller Design for a House Open
Heat consumption management and effective temperature control strategies to meet heat demand in residential and office buildings have become an important aspect within energy management. A thermal dynamic model of a building is not only ne…
View article: Dynamic Modelling and Control of Thermal Energy Storage
Dynamic Modelling and Control of Thermal Energy Storage Open
Thermal energy storage (TES) is a critical element in district heating systems and having a good understanding of its dynamic behaviour is necessary for effective energy management. TES supports heat sources in achieving a steady power sup…
View article: Quasi-dynamic interactions and security control of integrated electricity and heating systems in normal operations
Quasi-dynamic interactions and security control of integrated electricity and heating systems in normal operations Open
Coupling between electricity systems and heating
systems are becoming stronger, leading to more flexible and more
complex interactions between these systems. The operation of
integrated energy systems is greatly affected, especially when
s…
View article: Quantification of Operational Flexibility from a Heating Network
Quantification of Operational Flexibility from a Heating Network Open
The rapid development of intermittent renewable energy has caused emerging demand of flexibility for power systems. This paper quantifies operational flexibility from heating networks to enable the flexibility to participate in power syste…
View article: Modelling and analysis of a ground source heat pump combined with a PV-T and earth energy storage system
Modelling and analysis of a ground source heat pump combined with a PV-T and earth energy storage system Open
This paper presents the development of a mathematical model for the analysis of a ground source heat pump unit combined with photovoltaic-thermal panels and an earth energy storage system. Each sub-system was modelled in MATLAB and then me…
View article: Dynamic Modelling and Control of a Reciprocating Engine
Dynamic Modelling and Control of a Reciprocating Engine Open
Nowadays energy systems should be considered as integrated energy systems (IESs), where interactions between different energy vectors affect each other. A good performance of the whole system depends on the adequate behaviour of each indiv…
View article: Topological properties of medium voltage electricity distribution networks
Topological properties of medium voltage electricity distribution networks Open
With a large penetration of low carbon technologies (LCTs) at medium voltage and low voltage levels, electricity distribution networks are undergoing rapid changes. Much research has been carried out to analyse the impact of employing LCTs…
View article: Modelling of Energy Demand in a Modern Domestic Dwelling
Modelling of Energy Demand in a Modern Domestic Dwelling Open
The domestic building sector accounts for 13% of the total UK greenhouse gas emissions. In order to curtail the emissions, implementation of higher insulation materials in building envelopes and integrated low carbon technologies within bu…
View article: Method for Simultaneous Power Flow Analysis in Coupled Multi-vector Energy Networks
Method for Simultaneous Power Flow Analysis in Coupled Multi-vector Energy Networks Open
Electricity, gas and heat network infrastructure are anticipated to facilitate the delivery of low carbon energy-carriers to decarbonise the future use of energy. Co-ordinated design and operation of these traditionally separate systems ha…
View article: Uncertainties in decarbonising heat in the UK
Uncertainties in decarbonising heat in the UK Open
Heating is arguably one of the most difficult sectors to decarbonise in the UK's energy system. Meeting the 80% greenhouse gas emission reduction target by 2050 is likely to require that heat related emissions of CO2 from buildings are nea…
View article: Steady state analysis of gas networks with distributed injection of alternative gas
Steady state analysis of gas networks with distributed injection of alternative gas Open
A steady state analysis method was developed for gas networks with distributed injection of alternative gas. A low pressure gas network was used to validate the method. Case studies were carried out with centralized and decentralized injec…