The Experts below are selected from a list of 59964 Experts worldwide ranked by ideXlab platform
K J Noorman - One of the best experts on this subject based on the ideXlab platform.
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energy requirements of Household consumption a case study of the netherlands
1999Co-Authors: Wouter Biesiot, K J NoormanAbstract:This article describes the results of several research programmes that together aim at the development and application of methodologies that enable the study of long-term environmental effects (mainly related to the total Household energy Demand) of Household consumption in relation to other economic sectors; this is usually described as the Household metabolism approach. In this article we use energy consumption and CO2 emissions as proxies for long-term impacts on the environment. The major long-term environmental effects of several hundred Dutch Household consumption categories have been determined by means of the hybrid energy analysis methodology. Total energy consumption and related CO2 emission data have been calculated as a function of Household income and family type. Past trends have been studied by a time series (1950-1990) analysis. Technical reduction potentials have been calculated for mid and long-term scenarios. It is concluded that the set of methodologies described form a useful tool for the analysis of unsustainable trends in Household consumption patterns and associated energy requirements in the past and the present. The results indicate that present trends lead towards unsustainability. However, reversal of these trends is feasible if this starts in the immediate future and if it is maintained for decades. (C) 1999 Elsevier Science B.V. All rights reserved.
Wouter Biesiot - One of the best experts on this subject based on the ideXlab platform.
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energy requirements of Household consumption a case study of the netherlands
1999Co-Authors: Wouter Biesiot, K J NoormanAbstract:This article describes the results of several research programmes that together aim at the development and application of methodologies that enable the study of long-term environmental effects (mainly related to the total Household energy Demand) of Household consumption in relation to other economic sectors; this is usually described as the Household metabolism approach. In this article we use energy consumption and CO2 emissions as proxies for long-term impacts on the environment. The major long-term environmental effects of several hundred Dutch Household consumption categories have been determined by means of the hybrid energy analysis methodology. Total energy consumption and related CO2 emission data have been calculated as a function of Household income and family type. Past trends have been studied by a time series (1950-1990) analysis. Technical reduction potentials have been calculated for mid and long-term scenarios. It is concluded that the set of methodologies described form a useful tool for the analysis of unsustainable trends in Household consumption patterns and associated energy requirements in the past and the present. The results indicate that present trends lead towards unsustainability. However, reversal of these trends is feasible if this starts in the immediate future and if it is maintained for decades. (C) 1999 Elsevier Science B.V. All rights reserved.
Keith Openshaw - One of the best experts on this subject based on the ideXlab platform.
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biomass energy employment generation and its contribution to poverty alleviation
2010Co-Authors: Keith OpenshawAbstract:Studies were undertaken in Malawi from 1995 to 1997 and 2007 to 2008 to estimate the supply and Demand of Household energy. Because little is known about the supply chain for biomass, surveys were carried out for urban areas on its production, transport and trade as well as sustainable supply. Also, because biomass is used by all people for a multitude of purposes, a complete picture was made of regional and urban biomass supply and Demand. The results indicated that biomass is not only the principal energy, accounting for 89 percent of Demand, but also the main traded energy in the two time periods accounting for 56-59 percent of commercial Demand. Petroleum products supplied 26-27 percent, electricity 8-12 percent and coal 6-10 percent. The market value of traded woodfuel was US$ 48.8 million and US$ 81.0 million in 1996 and 2008 respectively, about 3.5 percent of gross domestic product (GDP). The study found that in 1996 and 2008 respectively, the equivalent of 93,500 and 133,000 full-time people was employed in the biomass supply chain, approximately 2 percent of the potential workforce. In contrast, about 3400 and 4600 people were employed in the supply chain of other fuels in these years. If the Malawi findings are applied to the current estimated wood energy consumption in sub-Saharan Africa, then approximately 13 million people could be employed in commercial biomass energy; this highlights its importance as a means to assist with sustainable development and poverty alleviation.
Wei-jen Lee - One of the best experts on this subject based on the ideXlab platform.
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A Novel DC Outlet with Adaptive Output Control for LVDC Household Power System
2020Co-Authors: Kaiqi Sun, Zhijie Liu, Wei-jen LeeAbstract:With the development of Low voltage DC (LVDC) distribution system, the Demand of Household appliances witnesses continuous growth in a decade. For meeting different requirements, the voltage levels of the appliances become more various, which challenges their integration into the building and increases the design difficulty of a Household outlet. Due to most Household appliances supplied with DC power, the ideal outlet in the DC Household power system should be a DC outlet with multilevel voltage outputs. However, it is not user-friendly for consumers. Moreover, the outlets with high voltage DC output increase the risk of appliance malfunction and electric shock, and the extra DC-DC conversion stages in the multilevel-buses LVDC system also increases the power loss and complicates the wiring topology. A novel design of DC Household outlet is proposed in this paper. The proposed DC Household outlet can distinguish the operating voltage of the Household appliances automatically, and then supply the appropriate operating voltage for appliances. With the embedded DC-DC buck converter, a wide range of output voltage from 5V~400V can be provided by the proposed outlet. For verifying the performance of the proposed DC Household outlet, the simulations on the power supply process of smartphone and electric kettle respectively are conducted on Matlab/Simulink. The simulation results show the feasibility of the proposed outlet topology and control scheme.
Kaiqi Sun - One of the best experts on this subject based on the ideXlab platform.
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A Novel DC Outlet with Adaptive Output Control for LVDC Household Power System
2020Co-Authors: Kaiqi Sun, Zhijie Liu, Wei-jen LeeAbstract:With the development of Low voltage DC (LVDC) distribution system, the Demand of Household appliances witnesses continuous growth in a decade. For meeting different requirements, the voltage levels of the appliances become more various, which challenges their integration into the building and increases the design difficulty of a Household outlet. Due to most Household appliances supplied with DC power, the ideal outlet in the DC Household power system should be a DC outlet with multilevel voltage outputs. However, it is not user-friendly for consumers. Moreover, the outlets with high voltage DC output increase the risk of appliance malfunction and electric shock, and the extra DC-DC conversion stages in the multilevel-buses LVDC system also increases the power loss and complicates the wiring topology. A novel design of DC Household outlet is proposed in this paper. The proposed DC Household outlet can distinguish the operating voltage of the Household appliances automatically, and then supply the appropriate operating voltage for appliances. With the embedded DC-DC buck converter, a wide range of output voltage from 5V~400V can be provided by the proposed outlet. For verifying the performance of the proposed DC Household outlet, the simulations on the power supply process of smartphone and electric kettle respectively are conducted on Matlab/Simulink. The simulation results show the feasibility of the proposed outlet topology and control scheme.