The basic component of two-circuit geothermal systems is the heat exchanger. When used in geothermal power systems. conventional shell-and-tube and plate heat exchangers cause problems related to the cleaning of the latter from salt-deposition and corrosion products. Their lifetime does not exceed. as a rule. 1 year. To utilize the …
Read More »Strategy for enhancing reliability and lifetime of DC-AC inverters used for wind turbines
Lifetime of wind turbine inverters is below expectations therefore. novel design and drive strategies are timely required to achieve optimum life span. In this work. a novel driving strategy to mitigate stresses on inverters is proposed. First. an electro thermal analysis was carried out using finite element modelling methods. Subsequently. …
Read More »A Surprise to Analysts: Less CHP in Microgrids. More Solar
ICF has been updating the Department of Energy’s CHP Installation Database for over a decade.
Read More »Characterization of the life cycle greenhouse gas emissions from wind electricity generation systems
The characterized wind electricity generation systems were statistically evaluated to assess the reduction in life cycle GHG emissions. A total of five unique categorization codes (HAWT-ON-S. HAWT-ON-I. HAWT-ON-L. HAWT- OFF-L. VAWT-ON-S) were designated to the 29 wind electricity generation LCA studies (representing 74 wind system cases) using the proposed categorization …
Read More »Smart Grids: Multi-objective Optimization in Dispatching
The book systematically introduces smart power system design and its infrastructure. platform and operating standards. It focuses on multi-objective optimization and illustrates where the intelligence of the system lies. With abundant project data. this book is a practical guideline for engineers and researchers in electrical engineering. as well as power …
Read More »Determinants of CO2 emissions in the MERCOSUR: the role of economic growth. and renewable and non-renewable energy
The main objective of this study was to analyze the impact of energy consumption (divided into renewable and non-renewable sources) and income on CO2 emissions within the environmental Kuznets curve (EKC) model for the Southern Common Market (MERCOSUR). To do so. the annual panel data collected during the 1990–2014 periods …
Read More »A Microgrid for Every Electric Bus Stop in Martha’s Vineyard Town
Off the coast of Massachusetts. on the history-filled island of Martha’s Vineyard. tourists may soon find themselves journeying into the future on a bus that is wirelessly charged by microgrids.
Read More »The impacts of non-renewable and renewable energy on CO2 emissions in Turkey
As a result of great increases in CO2 emissions in the last few decades. many papers have examined the relation- ship between renewable energy and CO2 emissions in the energy economics literature. because as a clean energy source. renewable energy can reduce CO2 emissions and solve environmental problems stemming from …
Read More »Renewable and non-renewable energy consumption. environmental degradation and economic growth in Tunisia
The aim of this document is to investigate the dynamic relationship between economic growth. renewable energy consumption. energy consumption and CO2 emissions in Tunisia over the period 1990–2015. Unit root tests and co-integration test was used in order to detect the order of stationary and to test the existence long …
Read More »Measurement of Productivity and Efficiency: Theory and Practice
Methods and perspectives to model and measure productivity and efficiency have made a number of important advances in the last decade. Using the standard and innovative formulations of the theory and practice of efficiency and productivity measurement. Robin C. Sickles and Valentin Zelenyuk provide a comprehensive approach to productivity and …
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