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In the existing coal-fired power plants, the energy penalty associated with CO2 capture process is an important challenge. For this reason, energy analysis has been widely used as a powerful tool to optimize the capture efficiency and reduce energy consumption. In our previous work, a Stirling cooler based cryogenic CO2 capture system was outlined. Process simulation and energy analysis of the system...
This paper explores the bi-directional long-run relationship between energy consumption in the road transport sector with CO 2 emissions and economic growth in OECD countries. Using time series data from 1960 to 2008 and employing the Fully Modified Ordinary Least Squares cointegration approach, the paper shows positive significant long-run bi-directional relationship between CO 2 ...
Steam ejectors use pressurized vapor as the motive flow for running in steam cycles. The major parameter that affects the thermal energy consumption is the pressure of motive flow used in this device. In the current study, a malfunctioning experimental ejector is studied numerically to reveal the source of low evacuation rate from a suction chamber. This ejector was designed to operate under a motive...
In this paper artificial neural network is introduced to forecast the daily electricity consumption of a multiproduct pipeline which is used to drive oil pumps. Forecasting electricity energy consumption is complicated since there are so many parameters affecting the energy consumption. Two different sets of input vectors are selected from these parameters by detailed analysis of energy consumption...
This study estimates higher education-induced energy consumption in the case of the TRNC (Turkish Republic of Northern Cyprus). Although the TRNC is a non-recognized state and a small island; it attracts many international students each year and has shown tremendous development in higher education since the 1990s. The results of the present study reveal that higher education development has an ongoing...
This paper is based on dynamic optimization methodology to investigate the economic energy efficiency issues in developing countries. The paper introduces some definitions about energy efficiency both in economics and physics, and establishes a quantitative way for measuring the economic energy efficiency. The linkage between economic energy efficiency, energy consumption and other macroeconomic variables...
As one of the largest energy consumer in the world, China has been facing great pressure to guarantee energy supply security. Investigating the driving forces dominating China energy consumption levels and their evolution may help to institute energy saving policy. Nowadays, the LMDI (logarithmic mean Divisia index) method has become a popular tool to find the nature of the factors that influence...
As one of the six highest energy-consuming industries, non-metallic mineral products industry accounts for 9.5% of national energy usage and 9.0% of energy-related CO 2 (carbon dioxide) emissions in China. In this paper, we evaluate the CO 2 emissions change from energy consumption and present a comprehensive picture of the underlying determinants of emissions change in the Chinese...
With China’s urbanization and motorization, greenhouse gas (GHG) emissions from urban passenger transport increased rapidly over recent years. As we estimated, China’s urban passenger transport associated motorized travel, energy consumption and lifecycle GHG emissions reached 2815 billion passenger kilometers (pkm), 77 million tons of oil equivalent (toe) and 335 million ton CO 2 equivalent...
This paper comments on the errors of a recently published paper by Song CF, Kitamura Y, Li SH, Energy 2014; 65:580–589. Recalculation of the energy consumption of the new CO 2 cryogenic capture process has been performed by choosing proper COP for Stirling crycoolers, calculation results show that the best attainable efficiency of the new proposed process is 1/3–1/4 of large scale cryogenic...
Since the late 1970s, developed countries have realized that their material prosperity, based on intensive use of natural resources was threatened by the energy crises (oil shocks of 1973 and 1979). This awareness was the trigger of many empirical researches that studied the relationship between energy consumption and economic growth. As the industrial development model, based on non-renewable resources,...
Since the late 1990s, much scholarly work has been done in the field of energy economics on the nexus between economic growth and energy consumption. Over the last decade, however, the literature has been recompiled through examining the relationship between energy consumption and a set of variables by referring to the implicit role of economic growth. Based upon finance-energy nexus, this paper attempts...
This study examines the empirical relationship between economic growth, energy consumption and carbon dioxide emissions, calculates the trend of decoupling effects and finally analyzes the evolution of inequality in CO2 emissions in GCC (Gulf Cooperation Council countries) countries. Results indicate a positive and significant association between energy consumption and CO2 emissions and between economic...
LDAC (liquid desiccant air-conditioning system) is promising for reducing the energy consumption, and improving the indoor air quality. In this paper, the operation performance of LDAC with internally cooled/heated dehumidifier/regenerator was simulated and optimized. The cooling tower and solar collectors were employed as the cooling/heating source. Four nested iteration loops were developed and...
This study investigates the causal links between CO2 (carbon dioxide) emissions, energy consumption, economic development and FDI (foreign direct investment) in six Sub Saharan African countries: the Republic of the Congo, the DRC (Democratic Republic of the Congo), Kenya, South Africa, Zambia and Zimbabwe. The results based on an autoregressive distributed lag model imply that the variables move...
While most of previous studies on China's energy conservation took the huge country as a whole, this manuscript revealed the obvious regional disparities in energy consumption of China's 30 provinces. Based on a hybrid energy input–output model, the total energy consumption of different regions was decomposed and compared using three measurements of embodied energy in inter-regional trade: 1) only...
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