A review of solar energy based heat and power generation systems

Modi, Anish; Bühler, Fabian; Andreasen, Jesper Graa; Haglind, Fredrik

doi:10.1016/j.rser.2016.09.075

Cited by 204 publications

(54 citation statements)

References 138 publications

(238 reference statements)

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“…report that in Danish climatic conditions, i.e. extremely cold, it is both economically and environmentally feasible to include concentrating solar thermal in a hybrid system with natural gas or biomass for combined heating and power generation [48]. In the Australian context heating is not a significant issue, so although this study confirms that CST can be effectively used in a hybrid system it does not validate its inclusion in a hybrid system used solely for power generation.…”

Section: Technologiescontrasting

confidence: 55%

Analysis and Comparison of Energy Generation Technologies in Remote Australia

Swanson¹

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Increased implementation of renewable technology for power generation is critical to achieving the emissions targets set by many countries, as well as delivering an economically viable method of providing power to isolated communities. This project set out to analyse and compare three technologies, namely Solar PV, Concentrating Solar Thermal with thermal storage and diesel generators, for deployment in remote Australian areas. In this paper, a detailed literature review of past projects involving renewable energy hybrid power generation systems has been completed. Thirty-six sources were chosen for the review based on criteria of recentness, relevance and peer review. Using these sources, this review has identified key areas of focus in the subsequent analysis as being the inclusion of solar thermal with thermal storage and a life-cycle analysis of GHG (embodied and emitted) and demonstrated the technical, economic and environmental feasibility of implementing hybrid energy systems worldwide and in Australia.The information presented in the literature review has been used to guide the creation of an analysis code in the Python software package which analyses supplied weather and electric load data and identifies the optimum mixture of technologies in the hybrid system. The results of this analysis have shown that Port Augusta is the ideal site for implementation, with an optimum system containing 89% Concentrating Solar Thermal, 9% Diesel and 2% Solar PV and a total installed power of 8.9MW. This system has an LCOE of $0.203/kWh, a renewable fraction of 92% and results in an annual CO 2 reduction from a 100% diesel system of 13,412,749kgeqCO 2 .Final Report -ENGG7280 4 17/06/2017It is recommended for future projects in this area that weather and electric load data be gathered over several years at each site under analysis, preferably over the same period to allow for more accurate comparison. It may also be worthwhile to broaden the scope of future reviews to include wind turbines and battery technology in the analysis.

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Section: Technologiescontrasting

confidence: 55%

Analysis and Comparison of Energy Generation Technologies in Remote Australia

Swanson¹

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“…The results of simulations indicated that such novel typology of hybrid cycles (combined cycles) have the potential to be cost-effective with high level of efficiency. An interesting option are also Photovoltaic (PV) cogeneration modules, where useful heat can be recovered by cooling the PV cells (thus increasing their electrical efficiency) was studied in [22]. An experimental analysis of some kinds of modules demonstrated that the thermal and electrical efficiencies are determined by mass flow of cooling water, the inlet temperature and the solar radiation [23].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Investigation of a Shared Cogeneration System with Electrical Cars for Northern Europe Climate

Vialetto

Noro

Rokni³

2017

J. sustain. dev. energy water environ. syst.

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Transition to alternative energy systems is indicated by EU Commission as a suitable path to energy efficiency and energy saving in the next years. The aims are to decrease greenhouses gases emissions, relevance of fossil fuels in energy production and energy dependence on extra-EU countries. These goals can be achieved increasing renewable energy sources and/or efficiency on energy production processes. In this paper an innovative micro-cogeneration system for household application is presented: it covers heating, domestic hot water and electricity demands for a residential user. Solid oxide fuel cells, heat pump and Stirling engine are utilised as a system to achieve high energy conversion efficiency. A transition from traditional petrol cars to electric mobility is also considered and simulated here. Different types of fuel are considered to demonstrate the high versatility of the simulated cogeneration system by changing the pre-reformer of the fuel cell. Thermodynamic analysis is performed to prove high efficiency with the different fuels.

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“…Thus, the interest in utilising solar energy source to meet global energy demand has been boosted in recent years [3]. Nano Corr., Energy and Modelling Research Group at Bournemouth University, UK is keenly engaged in developing robust and responsive technologies to attain maximum benefit from solar energy sources [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Development in Paraffin Based Thermal Storage System Through Shell and Tubes Heat Exchanger With Vertical Fins

Khan

2017

ASME 2017 11th International Conference on Energy Sustainability

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Researchers are committed to develop robust and responsive technologies for renewable energy sources to avert from reliance on fossil fuels, which is the main cause of global warming and climate change. Solar energy based renewable energy technologies are valued as an important substitute to bridge gap between energy demand and generation. However, due to varying and inconsistent nature of solar energy during weather fluctuations, seasonal conditions and night times, the complete utilisation of technology is not guaranteed. Therefore, thermal energy storage (TES) system is considered as an imperative technology to be deployed within solar energy systems or heat recovery systems to maximise systems efficiency and to compensate for varying thermal irradiance. TES system can capture and store the excess amount of thermal energy during solar peak hours or recover from systems that would otherwise discard this excess amount of thermal energy. This stored energy is then made available to be utilised during solar off peak hours or night times.Phase change material (PCM) based TES system is appraised as a viable option due to its excellent adoption to solar and heat recovery systems, higher thermal storage density and wide range of materials availability. However, due to its low thermal conductivity (≅ 0.2 W/mK), the rapid charging and discharging of TES system is a challenge. Therefore, there is a need for efficient and responsive heat exchange mechanism to boost the heat transfer within PCM.In this study, transient analysis of two-dimensional computational model of vertical shell and tube based TES system is conducted. Commercial grade paraffin (RT44HC) is employed in shell as thermal storage material due to its higher thermal storage density, thermo-physical stability and compatibility with container material. Water is made to flow in tubes as heat transfer fluid. In this numerical study, the parametric investigations are performed to determine the enhancement in charging rate, discharging rate and thermal storage capacity of TES system. The parametric investigations involve geometrical orientations of tubes in shell with and without fins, inlet temperature and volume flow rate of HTF.It is evident from numerical results that due to increase in effective surface area for heat transfer by vertical fins, the charging and discharging rate of paraffin based TES system can be significantly increased. Due to inclusion of vertical fins, conduction heat transfer is dominant mode of heat transfer in both charging and discharging processes. Furthermore, vertical fins do not restrict natural convection or buoyancy driven flow as compared to horizontal fins. Similarly, the inlet temperature has a noticeable impact on both charging and discharging process. In melting process, the sensible enthalpy is boosted due to rise in inlet temperature and thus the whole system thermal storage capacity is enhanced. Likewise, the effect of volume flow rate of HTF on charging and discharging rate is moderate as compared to inlet temper...

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A review of solar energy based heat and power generation systems

Cited by 204 publications

References 138 publications

Analysis and Comparison of Energy Generation Technologies in Remote Australia

Analysis and Comparison of Energy Generation Technologies in Remote Australia

Thermodynamic Investigation of a Shared Cogeneration System with Electrical Cars for Northern Europe Climate

Development in Paraffin Based Thermal Storage System Through Shell and Tubes Heat Exchanger With Vertical Fins

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