Analysis of the Rural House Energy-Saving Technology in Gansu

2013 ◽  
Vol 409-410 ◽  
pp. 589-592
Author(s):  
Peng Di ◽  
Qin Yao Zhang
Keyword(s):  
Energy Saving ◽  
Material Selection ◽  
Energy Utilization ◽  
Residential Energy ◽  
Improve Energy Efficiency ◽  
Water Heaters ◽  
Fundamental Cause ◽  
Biogas Energy ◽  
Solar Water Heaters ◽  
Rural Construction

in the context of China accelerates the new rural construction and promotes residential energy-saving, through a combination of Gansu climate, resources and rural house features, analyzed the material selection, forms and practices of rural house envelope, found the fundamental cause of leading the energy consumption and poor insulation in local rural house, and made some concrete improvements. Meanwhile, studied the application of passive solar houses, solar water heaters, as well as "four in one" type of biogas energy utilization system model in a local rural house, to improve energy efficiency and provide a reference to the new rural development.

Solar Energy Progress Report—1961

1962 ◽  
Vol 84 (2) ◽  
pp. 213-221 ◽  
Author(s):  
John I. Yellott
Keyword(s):  
Solar Energy ◽  
Power Plants ◽  
National Physical Laboratory ◽  
Energy Utilization ◽  
Tropical Regions ◽  
Water Heaters ◽  
The People ◽  
Actual Operation ◽  
Solar Powered ◽  
Solar Water Heaters

1961 has been a year of outstanding success in celestial applications of solar energy since, at the year’s end, no less than a dozen satellites are in orbit, carrying solar-powered radio and television transmitters. The first satellite to carry silicon cells into orbit, Vanguard I, is still transmitting after nearly four years of service, despite serious deterioration of its silicon cells due to the intense radiation of the Van Allen belt. Three major scientific conferences on solar energy were held during the year, with the addition of nearly two hundred papers to the growing body of literature on the subject. The largest of these gatherings, the United Nations Conference on New Sources of Energy, brought more than 500 participants from 80 nations together in Rome. A major improvement in small vapor-cycle power plants, developed at the National Physical Laboratory of Israel, was described and demonstrated in actual operation. Significant progress in direct solar-electrical converters of three types was reported, but costs are still far too high for terrestrial use. Solar water heaters continue to be the only commercially available devices which use the sun’s heat; 350,000 are now in use in Japan, while more than 20,000 units have been manufactured in Israel. The most pressing need for solar-activated equipment is found to exist in the field of refrigeration for the preservation of food and medicine in tropical regions where electricity from conventional sources lies far in the future. Intensified research is needed in all aspects of solar energy utilization to bring costs down to the point where the people of the world can afford to use the “free energy” from the sun.

The New Rural Green Residential Energy Conservation Mode Design - Environmental Articles

2012 ◽  
Vol 599 ◽  
pp. 651-655
Author(s):  
Qiu Fen Hu ◽  
Hua Feng Deng ◽  
Fei Sun ◽  
Jun Wei ◽  
Kun Peng Yu
Keyword(s):  
Solar Energy ◽  
Energy Conservation ◽  
Natural Resources ◽  
Energy Saving ◽  
Waste Utilization ◽  
Residential Areas ◽  
Residential Energy ◽  
Mode Design ◽  
Integration Effect ◽  
Biogas Energy

Based on the study geography, climate and other natural resources and customs,such as fully promote the use of biogas energy, develop and utilize of solar energy, sewage and waste utilization and processing Measures .we put forward some specific measures to improve rural residential, we discuss rural green residence pattern, to achieve environmental protection and energy saving construction of integration effect, after the rural residential areas to provide reference for the construction of.

scholarly journals Parametric Quantification of Low GWP Refrigerant for Thermosyphon Driven Solar Water Heating System

2015 ◽  
Vol 10 (2) ◽  
Keyword(s):  
Heating System ◽  
Energy Utilization ◽  
Forced Circulation ◽  
Solar Water ◽  
Water Heaters ◽  
Heat Transfer Efficiency ◽  
Evacuated Tube Collector ◽  
International Environment ◽  
Solar Water Heating System ◽  
Solar Water Heaters

Modern lifestyle, industrialization and economy thrive on energy which is getting expensive overtime. Thermosyphon based systems are getting attraction for their promising heat transfer efficiency and zero energy utilization. Refrigerants having ozone depletion potential (ODP) and high Global Warming Potential (GWP) have been banned or under time bared permission under Montreal (1987) and Kyoto (1997) protocols. We have devolved a Refrigerant Parametric Quantification (RPQ) method for the choice of optimal refrigerant for density driven solar water heaters. A set of 29 refrigerants are simulated Using REFPROP under various temperature and pressure conditions. The optimal parameters of thermosyphon system are identified from governing equations, international environment safety protocols and open literature. The proposed RPQ method shows most appropriate refrigerant for given temperature range. In second part, the proposed system is simulated in TRNSYS using forced circulation method. In the end, a glass evacuated tube collector is developed and tested on the principal of thermosyphon, employing the best refrigerant emerged from simulation study.

Solar Energy Progress Report—1963

1964 ◽  
Vol 86 (4) ◽  
pp. 475-484 ◽  
Author(s):  
John I. Yellott
Keyword(s):  
Solar Energy ◽  
Fossil Fuels ◽  
Low Cost ◽  
Energy Utilization ◽  
Moderate Pressure ◽  
Water Heaters ◽  
Solar Energy Utilization ◽  
Cell Arrays ◽  
Solar Pump ◽  
Solar Water Heaters

The most spectacular successes in solar-energy utilization in 1963 have been scored by the communications satellites, all of which are powered by megacell arrays of silicon solar batteries. So many satellites are now in orbit that it has literally become impossible to keep track of them. For the second generation of spacecraft, which will venture closer to the sun and also will need more power than today’s silicon cell arrays can conveniently produce, thermionic and thermoelectric converters and high-accuracy concentrators are now in the preflight test stage. On the earth’s surface, solar water heaters and low-capacity stills are gaining commercial acceptance in regions where fossil fuels and electricity are expensive. Production of drinking water from the sea and from brackish wells is receiving substantial research support, and encouraging progress is reported for both small and large solar stills. The much-needed solar pump and refrigerator are still awaiting the breakthrough which will result in low-cost collectors capable of generating steam or other vapors at moderate pressure. These projects urgently need financial support.

scholarly journals Exploring the Effects of Industrial Structure, Technology, and Energy Efficiency on China’s Carbon Intensity and Their Contributions to Carbon Intensity Target

2020 ◽  
Vol 12 (19) ◽  
pp. 8016
Author(s):  
Feng Wang ◽  
Min Wu ◽  
Jiachen Hong
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Historical Development ◽  
Industrial Development ◽  
Industrial Structure ◽  
Electricity Production ◽  
Mitigation Measures ◽  
Carbon Intensity ◽  
Intermediate Input ◽  
Residential Energy

To achieve the national carbon intensity (NCI) target, China should adopt effective mitigation measures. This paper aims to examine the effects of key mitigation measures on NCI. Using the input-output table in 2017, this paper establishes the elasticity model of NCI to investigate the effects of industrial development, intermediate input coefficients, energy efficiency, and residential energy saving on NCI, and further evaluates the contributions of key measures on achieving NCI target. The results are shown as follows. First, the development of seven sectors will promote the increase of NCI while that of 21 sectors will reduce NCI. Second, NCI will decrease significantly with the descending of intermediate input coefficients of sectors, especially electricity production and supply. Third, improving energy efficiency and residential energy saving degree could reduce NCI, but the latter has limited contribution. Fourth, the development of all sectors will reduce NCI by 10.11% in 2017–2022 if sectors could continue the historical development trends. Fifth, assuming that sectors with rising intermediate input coefficients would keep their coefficients unchanged in the predicting period and sectors with descending coefficients would continue the historical descending trend, the improvement of technology and management of all sectors will reduce NCI by 14.02% in 2017–2022.

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