Search results for: Alfonso Chinnici

Items from 1 to 8 out of 8 results

article

Experimental investigation of the effects of wind speed and yaw angle on heat losses from a heated cavity

Ka Lok Lee, Alfonso Chinnici, Mehdi Jafarian, Maziar Arjomandi, more

Solar Energy > 2018 > 165 > C > 178-188

An experimental investigation of the effects of wind speed (0–12 m/s) and yaw angle (0°–90°) on the convective heat losses from a cylindrical cavity heated with a uniform wall temperature, is presented. The cavity is heated with 16 individually controlled copper surface elements, so that both the heat losses and the heat flux distribution can be measured and subjected to a controlled convective environment...

article

Techno-economic evaluation of modular hybrid concentrating solar power systems

Jin Han Lim, Bassam B. Dally, Alfonso Chinnici, Graham J. Nathan

Energy > 2017 > 129 > C > 158-170

This paper assesses the influence on techno-economic performance of modularising hybrid Concentrating Solar Power (CSP) systems with fossil fuel backup for both a Hybrid Solar Receiver Combustor (HSRC), which integrates a combustor into a solar cavity receiver, and a Solar Gas Hybrid (SGH) system with a similar cavity receiver and a back-up boiler. It was found that the energy losses in a system of...

article

Experimental and numerical investigation of the flow characteristics within a Solar Expanding-Vortex Particle Receiver-Reactor

Alfonso Chinnici, Yunpeng Xue, Timothy C.W. Lau, Maziar Arjomandi, more

Solar Energy > 2017 > 141 > C > 25-37

The iso-thermal flow field within several configurations of a Solar Expanding-Vortex Particle Receiver-Reactor (SEVR) was investigated, using a combination of multi-plane particle image velocimetry (PIV) and Reynolds-Averaged Navier-Stokes (RANS) computational modeling, at a constant inlet Reynolds number of 12,300. The experimental and numerical results confirmed that the SEVR generates a well-established...

article

Effect of particle size on the MILD combustion characteristics of pulverised brown coal

Manabendra Saha, Bassam B. Dally, Paul R. Medwell, Alfonso Chinnici

Fuel Processing Technology > 2017 > 155 > C > 74-87

This paper reports a combined experimental and numerical investigation on the impact of particle size on the MILD combustion characteristics of pulverised brown coal. In particular, the work investigates the volatiles release and reactions from the coal particles with a vitiated co-flow and its impact on the formation and emission of CO, CO₂, and NO_x. The experimental vertical furnace is 1200mm long...

article

Assessment of the potential benefits and constraints of a hybrid solar receiver and combustor operated in the MILD combustion regime

Jin Han Lim, Alfonso Chinnici, Bassam B. Dally, Graham J. Nathan

Energy > 2016 > 116 > P1 > 735-745

A novel configuration of a Hybrid Solar Receiver and Combustor (HSRC) operated in the Moderate and Intense Low oxygen Dilution (MILD) combustion regime, termed the MILD HSRC is reported. This combustion regime is chosen because of its potential to lower NO_x emissions, while increasing the magnitude and uniformity of heat transfer relative to alternative combustion systems, but has not previously been...

article

Burning characteristics of Victorian brown coal under MILD combustion conditions

Manabendra Saha, Bassam B. Dally, Paul R. Medwell, Alfonso Chinnici

Combustion and Flame > 2016 > 172 > C > 252-270

In this work a vertical furnace is used to investigate the MILD (Moderate or Intense Low-oxygen Dilution) combustion characteristics of pulverized Victorian brown coal. This paper reports the effect of turbulence on the volatiles’ release and reactions under vitiated co-flow conditions as well as the impact on the pollutants’ formation and emission. Loy-Yang brown coal from the Latrobe Valley, Victoria,...

article

A Novel Solar Expanding-Vortex Particle Reactor: Influence of Vortex Structure on Particle Residence Times and Trajectories

Alfonso Chinnici, Maziar Arjomandi, Zhao Feng Tian, Zhao Lu, more

Solar Energy > 2015 > 122 > C > 58-75

A novel configuration of Solar Vortex Reactor (SVR), termed the Solar Expanding-Vortex Particle Reactor, is proposed for heating particles for applications such as steam-gasification. This configuration differs from the previous configurations by features including utilising a conical entry at the opposite end of the cavity to the aperture and a radial exit. The new configuration offers potential...

article

Modeling Negative Temperature Coefficient region in methane oxidation

Pino Sabia, Mara de Joannon, Antonio Picarelli, Alfonso Chinnici, more

Fuel > 2012 > 91 > 1 > 238-245

Standard kinetic models are essential tools for predicting and interpreting the evolution of oxidation processes and obtain useful information for designing and dimensioning practical combustion facilities. Quite often a large part of the development work consists in the determination of the most suited chemical kinetics scheme to use in numerical simulations. This step is even more critical in the...

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Keywords

MILD COMBUSTION (4)
CFD (2)
PARTICLE DEPOSITION (2)
SOLAR REACTOR (2)
TEMPERATURE (2)
VORTEX FLOW (2)
AUTO-IGNITION DELAY TIME (1)
CO (1)
CONCENTRATED SOLAR THERMAL (1)
CONCENTRATING SOLAR-THERMAL ENERGY (1)
HEAT LOSS (1)
HYBRID SOLAR RECEIVER COMBUSTOR (HSRC) (1)
HYBRIDIZATION (1)
LEVELIZED COST OF ELECTRICITY (1)
METHANE OXIDATION (1)
MODULARISATION (1)
MOLTEN SALT (1)
NEGATIVE TEMPERATURE COEFFICIENT (1)
NO (1)
PARTICLE IMAGE VELOCIMETRY (1)
PARTICLE TRACKING (1)
PARTICLES SIZE (1)
PRECESSING VORTEX CORE (1)
PULVERISED VICTORIAN BROWN COAL (1)
PULVERIZED FUEL (1)
RESIDENCE TIME (1)
SODIUM (1)
SOLAR RECEIVER (1)
SOLAR THERMAL POWER (1)
TEMPERATURE DISTRIBUTION (1)
TURBULENT JET (1)
VICTORIAN BROWN COAL (1)
WIND (1)
WORKING FLUID (1)
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INFONA - science communication portal

Search results for: Alfonso Chinnici

Experimental investigation of the effects of wind speed and yaw angle on heat losses from a heated cavity

Techno-economic evaluation of modular hybrid concentrating solar power systems

Experimental and numerical investigation of the flow characteristics within a Solar Expanding-Vortex Particle Receiver-Reactor

Effect of particle size on the MILD combustion characteristics of pulverised brown coal

Assessment of the potential benefits and constraints of a hybrid solar receiver and combustor operated in the MILD combustion regime

Burning characteristics of Victorian brown coal under MILD combustion conditions

A Novel Solar Expanding-Vortex Particle Reactor: Influence of Vortex Structure on Particle Residence Times and Trajectories

Modeling Negative Temperature Coefficient region in methane oxidation

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INFONA - science communication portal

Search results for: Alfonso Chinnici

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