A5024979251- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Solar Thermal and Photovoltaic Systems
- Advanced Thermodynamic Systems and Engines
- Refrigeration and Air Conditioning Technologies
- Advanced Thermodynamics and Statistical Mechanics
- Fluid Dynamics and Mixing
- Integrated Energy Systems Optimization
- Adsorption and Cooling Systems
- Fluid Dynamics and Turbulent Flows
- Heat Transfer and Boiling Studies
- Fluid Dynamics and Thin Films
- Building Energy and Comfort Optimization
- Combustion and flame dynamics
- Phase Change Materials Research
- Particle Dynamics in Fluid Flows
- Photovoltaic System Optimization Techniques
- Fluid Dynamics and Heat Transfer
- Heat Transfer and Optimization
- Solar-Powered Water Purification Methods
- Hybrid Renewable Energy Systems
- Heat transfer and supercritical fluids
- solar cell performance optimization
- Phase Equilibria and Thermodynamics
- Advanced Combustion Engine Technologies
- Spacecraft and Cryogenic Technologies
Imperial College London
2016-2025
Institute of Thermophysics
2014-2024
Centre for Process Innovation
2024
Clean Energy (United States)
2023
Polytechnic University of Bari
2017
Process Systems Enterprise (United Kingdom)
2016
University of Cyprus
2014
University of Cambridge
2003-2007
The goal of this paper is to assess the suitability hybrid PVT systems for provision electricity and hot water (space heating not considered) in UK domestic sector, with particular focus on a typical terraced house London. A model developed estimate performance such system. allows various design parameters unit be varied, so that their influence overall system can studied. Two key parameters, specifically covering factor solar collector PV flow-rate, are considered. emissions compared those...
Performance calculations are presented for a small-scale combined solar heat and power (CSHP) system based on an Organic Rankine Cycle (ORC), in order to investigate the potential of this technology provision heating domestic use UK. The consists collector array total area equivalent that available roof typical UK home, ORC engine featuring generalised positive-displacement expander water-cooled condenser, hot water storage cylinder. Preheated from condenser is sent cylinder, which can also...
In this paper we present a dynamic model of hybrid photovoltaic/thermal (PVT) collector with sheet-and-tube thermal absorber. The is used in order to evaluate the annual generation electrical energy along provision domestic hot-water (DHW) from output, by using real climate-data at high temporal resolution. considers effect non-uniform temperature distribution on surface solar cell its power output. An unsteady 3-dimensional numerical developed estimate performance such collector. allows key...
A techno-economic analysis is undertaken to assess hybrid PV/solar-thermal (PVT) systems for distributed electricity and hot-water provision in a typical house London, UK. In earlier work (Herrando et al., 2014), system model based on PVT collector with water as the cooling medium (PVT/w) was used estimate average year-long performance. The results showed that low solar irradiance levels ambient temperatures, such those associated UK climate, higher coverage of total household energy demands...
Solar energy can play a leading role in reducing the current reliance on fossil fuels and increasing renewable integration built environment, its affordable deployment is widely recognised as an important global engineering grand challenge. Of particular interest are solar systems based hybrid photovoltaic-thermal (PV-T) collectors, which reach overall efficiencies of 70% or higher, with electrical up to 15–20% thermal excess 50%, depending conditions. In most applications, output PV-T...
In this paper, we examine integrated thermal energy storage (TES) solutions for a domestic-scale solar combined heat and power (S-CHP) system based on an organic Rankine cycle (ORC) engine low-cost non-concentrating solar-thermal collectors. TES is critical element distinct advantage of systems. It can allow, depending how it implemented, improved matching to the end-user demands, load factors, higher average efficiencies overall performance, as well reduced component sizes costs, especially...
Abstract The share of electricity generated by intermittent renewable energy sources is increasing (now at 26% global generation) and the requirements affordable, reliable secure supply designate grid-scale storage as an imperative component most transition pathways. widely deployed bulk solution pumped-hydro (PHES), however, this technology geographically constrained. Alternatively, flow batteries are location independent have higher densities than PHES, but remain associated with high...
Three distinct pumped-thermal electricity storage (PTES) system variants based on currently available sensible heat materials are presented: (i) Joule-Brayton PTES systems with solid thermal reservoirs; (ii) liquid stores; and (iii) transcritical Rankine stores. Parametric design optimisation is performed for each variant considering various configurations, working fluids media from a thermodynamic perspective. The results show that amongst the investigated systems, recuperative CO2 as fluid...
Solar desalination has emerged as a sustainable solution for addressing global water scarcity in the energy-water nexus, particularly remote areas developing countries. How to use light spectrum through solar devices can profoundly affect energy utilization, rates, off-grid applicability, and affordability. photovoltaic (PV) thermal (ST) respectively have enabled variety of interesting technologies, but resulting applications usually limit integration between be either electrically or...
In this paper, we examine the electrical power-generation potential of a domestic-scale solar combined heating and power (S-CHP) system featuring an organic Rankine cycle (ORC) engine 15-m2 non-concentrated solar-thermal collector array. The is simulated with range working fluids its performance optimised for operation in UK climate. findings are applicable to similar geographical locations significant cloud coverage, low resource limited installation areas. A key feature system's design...