A simple biofuel production system can be first examined for its policy 8 compliance in terms of GHG emission reduction target relative to fossil-based 9 counterparts. More integrated and optimised biorefinery systems with polygeneration 10 can then be evolved with the aid of graphical analysis of marginal emission savings 11 vs. additional economic margins. This bottom-up approach helps to ach...

Generally, micro gas turbines are in the range of 15 to 300 kW. However, recent applications unmanned aerial vehicles (UAVs) and polygeneration require a small turbine. So, here swirl combustor designed for turbine engine capacity less than 1 kW is analyzed under nonreacting flow conditions. Simulations have been carried out study field inside can combustor. Flow characteristics, like velocity,...

After more than one century from its first use for electric power production, steam cycles are still the object of continuous research and development efforts worldwide. Indeed, owing to favorable thermodynamic properties, not only used in coal-fired plants but a large variety applications such as combined cycles, concentrated solar polygeneration plants. On other hand, cope with efficiency fle...

The paper is devoted the increasing efficiency to use of traditional and renewable sources in microenergy systems. development combined power supply systems local objects with stochastic nature generation has led a number fundamental problems.
 It associated lack decision-making system regarding ratio electricity coordination their levels consumption schedule at stage designing such microg...

Photovoltaic power generation is a growing renewable primary energy source, expected to assume a major role as we strive toward fossil fuel free energy production. However, the photovoltaic efficiencies limit the conversion of solar radiation into useful power output. Hybrid systems extend the functionality of concentrating photovoltaics (CPV) from simply generating electricity, to providing si...

The present paper aims at defining a simplified but effective model of a thermal network that links the thermal power generation with the resulting temperature time profile in a heated or refrigerated environment. For this purpose, an equivalent electric circuit is proposed together with an experimental procedure to evaluate its input parameters. The paper also highlights the simplicity of impl...

The aim of this work is to present a dedicated Solar Polygeneration System (PROTEAS System) for the simultaneous production of electricity, hot water and air-conditioning. The core of the PROTEAS System is the innovative setup of Total Internal Reflection Reflectors made of plastic (Primary Optical System), which concentrate the solar rays up to 5,000 suns, homogenized to 1,000 suns by speciall...

We investigate the economics of coal-to-liquid (CTL) conversion, a polygeneration technology that produces liquid fuels, chemicals, and electricity by coal gasification and Fischer–Tropsch process. CTL is more expensive than extant technologies when producing the same bundle of output. In addition, the significant carbon footprint of CTL may raise environmental concerns. However, as petroleum p...

To address a decarbonized cement production process (DCPP), calcium looping is connected to an industrial (CPP) for capturing CO2 by 93.5~96%. Since the captured purity up 99.9 wt%, carbon capture and utilization (CCU) generate additional products of urea methanol. An integration DCPP CCU, named DCPP-based polygeneration system, being developed three scenarios. meet power demand producing high-...