Numerical investigations on the effects of envelope thermal loads on energy utilization potential and thermal non-uniformity in sleeping environments

2017 ◽  
Vol 124 ◽  
pp. 232-244 ◽  
Author(s):  
Ning Mao ◽  
Mengjie Song ◽  
Dongmei Pan ◽  
Zhao Li ◽  
Shiming Deng
Keyword(s):  
Energy Utilization ◽  
Thermal Loads ◽  
Numerical Investigations ◽  
Utilization Potential

scholarly journals Energy Utilization Potential of Wheat Straw in an Ecological Balance—A Case Study of Henan Province in China

Resources ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 41 ◽  
Author(s):  
Lyu Zhichen ◽  
Zhu Xuantong
Keyword(s):  
Wheat Straw ◽  
Relevant Literature ◽  
Henan Province ◽  
Biomass Energy ◽  
Energy Utilization ◽  
Linear Regression Method ◽  
Ecological Balance ◽  
Straw Retention ◽  
Utilization Potential ◽  
Minimum Medium

Minimum volume of straw should be retained in collecting wheat straw in order to obtain sustainable agricultural biomass energy and measure the energy utilization potential of wheat straw when considering ecological balance. Based on relevant literature, this paper calculates the minimum, medium, and maximum volume of wheat straw retention in various types of soil and designs three different scenarios of minimum, medium, and maximum wheat straw retention. Taking Henan province in China as a case, this paper calculates the potential of wheat straw for energy utilization using linear regression method and scenario analysis, with consideration of influencing factors such as the harvest coefficient and combustion ratio of wheat straw. The results show that the energy utilization potential of wheat straw in Henan province in 2020, 2030, 2050 are 13.77, 16.48, 22.54 million tons of coal equivalent (TCEs), respectively, in the minimum retention scenario, assuming that wheat straw is not directly used for combustion. Excessive straw left in the field causes resource waste and produces CH4 and other greenhouse gases. This paper finds that energy potential of wheat straw for energy utilization is limited when ecological balance is considered, however, it is beneficial to the sustainable development of crop biomass energy.

scholarly journals Correlation Between Density of Residential Areas and Solar Energy Potential in Xining City

2020 ◽  
Vol 217 ◽  
pp. 02001
Author(s):  
Ting Wen ◽  
Yu Liu ◽  
Jin Wang ◽  
Wuxing Zheng ◽  
Teng Shao
Keyword(s):  
Solar Energy ◽  
Urban Housing ◽  
Energy Utilization ◽  
Residential Areas ◽  
Energy Potential ◽  
Planning And Design ◽  
Design Variables ◽  
Solar Energy Utilization ◽  
Utilization Potential ◽  
Related Design

In urban scale, solar energy utilization potential is closely related to residential density. Taking Xining City as an example, this paper explored how density of urban residential area affects solar energy utilization potential of urban housing. By changing density related design variables , including building layout, density rate, floor-site area ratio and the number of floors, 36 general models of residential areas with low, medium and high density are Abstracted. The results show that solar energy utilization potential of buildings varies greatly with different density related design variables. Comparison of a number of different scenarios reveals how density related variables affect solar energy utilization potential, based on which suggestions for optimization of solar energy potential for urban residential areas in their initial planning and design stages are proposed.

Sign in / Sign up

Export Citation Format

Share Document