2439 Articles found
Inderscience Publishers Articles
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Exergetic cost analysis of a CI engine fuelled with petrodiesel and palm and karanja biodiesels: a comparative assessment
This paper deals with evaluation of suitable fuel for a 4–stroke single–cylinder diesel engine operated at steady state amongst three fuels - petrodiesel (PD), palm biodiesel (PB) and karanja biodiesel (KB) - through exergy, economic and ...
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Cumulative exergy consumption (CExC) analysis of energy carriers in China
Cumulative exergy consumption (CExC), which represents the total exergy of natural resources required to provide a product, is an appropriate indicator for quantifying the depletion of natural resource. The objective of this study is to determine ...
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Energy and exergy analyses of solar ponds in the Indian climatic conditions
Energy and exergy analyses of a salinity–gradient solar pond (SGSP) (100 × 100 m²) are carried out in the Indian climatic conditions. It has been found that the highest amount of useful low–grade thermal energy, i.e., 24,260 and 28,119 MJ, can be ...
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Enhancement of heat and exergy transfer inside double pipe heat exchanger with conical tube
Enhancement of heat and exergy transfers in double pipe exchangers with conical tubes is investigated. Different fluid combinations are selected. The momentum and energy equations for both fluids are solved mathematically and numerically. Both ...
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Energy and exergy analysis of a novel multigeneration system producing cooling, heating, power and pure water
A novel multi–generation system producing power, pure water, cooling and heating is proposed and analysed in detail. The system comprises a hybrid generator-absorber heat exchanger (GAX), the Organic Rankine Cycle (ORC), the absorption heat ...
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Thermodynamic analysis of a hybrid gas turbine/thermoacoustic heat pump/refrigeration engine
Possible performance enhancement of small gas turbine power plants through the application of thermoacoustic systems is examined. The thermoacoustic subsystem is powered only by the waste heat of the gas turbine. Two different gas turbine ...
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Eco-Brella: prototype development of the umbrella as harvester of solar and wind energies
The familiar umbrella has been redesigned for power harvesting from renewable energy sources resulting in the Eco-Brella . Several engineering technologies are utilised: aerodynamics for fin design, mechatronics for power management, materials ...
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Energy-sensitive control strategies for decoupled production systems
Rising demand for energy caused by emerging economies, decreasing oil stocks, and the intended nuclear phase-out in some industrial countries has led to new problems concerning sufficient and on time energy supply. Since availability of energy has ...
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A new time–frequency approach for hybrid differential and impedance protection of transmission lines
A new current differential protection of transmission lines is presented in this paper using an S–transform variant having very fast computational speed suitable for real–time applications. The conventional S–transform used earlier for transmission ...
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Hybrid machine intelligence–based improved classifiers for multiple power signal disturbances
This work presents a new technique for the identification of multiple power quality disturbances in industrial power systems. This new technique is developed based on change detection filter (CDF) and machine intelligence techniques like the local ...
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A genetic algorithm to solve the thermal unit commitment problem
In this paper, a genetic algorithm (GA) is proposed to solve the thermal unit commitment (UC) problem. The objective of UC is to determine the optimal generation of the committed units to meet the load demand and spinning reserve at each time ...
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Energy efficient scheme for DC motor drives in parameter uncertainties
In conventional way of cost effective and easy to implement energy efficient scheme for DC motor drives, load perturbations are only taken into account. But, in real industrial applications the moment of inertia, friction coefficient, armature ...
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Impact of frequency–based tariff in power market
System frequency can be a useful signal in real–time power system operation to promote competition along with operational reliability. The commercial mechanism adopted in India, the availability–based tariff (ABT), defines a power tariff structure ...
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A cost–effective backward Lagrangian method for simulation of pollutant formation in gas turbine combustors by post–processing of complex 3D calculations
A backward Lagrangian Monte Carlo modelling is proposed to calculate by post–processing the PDF of the thermo–chemical parameters of complex turbulent reactive flows simulated with a simple turbulent combustion model. PDF's of minor species such as ...
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Emissions through solar PV systems – a review
Photovoltaic (PV) system has been quoted for wide range of green house gas (GHG) emissions through life cycle assessment (LCA) studies. There are a variety of solar cell materials available, which vary in conversion efficiency and emission of CO 2 ...
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Optimal sizing of a hybrid energy system for a semi-arid climate using an evolutionary algorithm
The use of a genetic algorithm (GA) for optimal sizing of an off-grid hybrid renewable energy system (HRES) is reported. As a pre-feasibility analysis and to determine the appropriate HRES type to be studied, wind energy potential and solar ...
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Possibility of biomass gasification in tea manufacturing industries in Assam, India
Tea manufacturing industries in India use natural gas, tea drying oil, wood, and coal for process heat. India is the second largest producer of tea [(1,137.07, China 1,761.00) million kilogram] in 2012. About 0.6–1.2 kg of coal is required to ...
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Optimum use of renewable energy resources to generate electricity via hybrid system
The necessity of hybrid energy system is gaining more importance day by day as it incorporates two or more than two renewable energy resources that when integrated overcome limitations inherent in either. Hybrid energy system has been seen as an ...
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Renewable energy in Armenia
Armenia does not have any fossil fuel or coal reserves; therefore, it is entirely dependent on the imported fuel for transportation, electricity generation, and heat production. Armenian Government has plans to develop renewable energy resources. ...
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Dynamic validated model of a DFIG wind turbine
This paper presents the development and qualitative validation of a doubly-fed induction generator (DFIG) wind turbine model that is represented in terms of behaviour equations of each of the subsystems, mainly the turbine rotor, the drive train, ...