scholarly journals Energy conservation and pomeron loops in high energy evolution

2007 ◽  
Vol 37 (2c) ◽  
pp. 816-818
Author(s):  
Gösta Gustafson
2018 ◽  
Vol 2 (4) ◽  
pp. 629-646 ◽  
Author(s):  
Nicole R. Buan

Methanogens are anaerobic archaea that grow by producing methane gas. These microbes and their exotic metabolism have inspired decades of microbial physiology research that continues to push the boundary of what we know about how microbes conserve energy to grow. The study of methanogens has helped to elucidate the thermodynamic and bioenergetics basis of life, contributed our understanding of evolution and biodiversity, and has garnered an appreciation for the societal utility of studying trophic interactions between environmental microbes, as methanogens are important in microbial conversion of biogenic carbon into methane, a high-energy fuel. This review discusses the theoretical basis for energy conservation by methanogens and identifies gaps in methanogen biology that may be filled by undiscovered or yet-to-be engineered organisms.


2020 ◽  
Vol 143 ◽  
pp. 02022
Author(s):  
Rili Yang ◽  
Guangsheng Zhang ◽  
Wanying Jia

Through investigations on some key high energy-consuming enterprises (metallurgy, building materials, coal chemical industry) in Gansu Province, it was found that various industries had different understandings on the work, which mainly focused on some aspects on enterprise capacity development, the advanced technology, the relation between inputs and the output. In addition, especially government supervision had a great importance on the whole work, such as the complete laws and timely implementation of existing problems. In view of above all, this paper put forwards to strengthen energy conservation and emission reduction from the aspects of the supervision mechanism construction and the supervision system, which had a certain significance for the guidance of energy conservation and emission reduction.


2019 ◽  
Vol 9 (21) ◽  
pp. 4501 ◽  
Author(s):  
Yongteng Sun ◽  
Ming Lu ◽  
Yongjun Sun ◽  
Zuguo Chen ◽  
Hao Duan ◽  
...  

High energy consumption is an important issue affecting the operation and development of wastewater treatment plants (WWTPs). This paper seeks energy-saving opportunities from three aspects: energy application, process optimization, and performance evaluation. Moreover, effective energy-saving can be achieved from the perspective of energy supply and recovery by using green energy technologies, including wastewater and sludge energy recovery technologies. System optimization and control is used to reduce unnecessary energy consumption in operation. Reasonable indexes and methods can help researchers evaluate the application value of energy-saving technology. Some demonstration WWTPs even can achieve energy self-sufficiency by using these energy conservation technologies. Besides, this paper introduces the challenges faced by the wastewater treatment industry and some emerging energy-saving technologies. The work can give engineers some suggestions about reducing energy consumption from comprehensive perspectives.


2006 ◽  
Vol 767 ◽  
pp. 171-188 ◽  
Author(s):  
A. Kovner ◽  
M. Lublinsky
Keyword(s):  

2005 ◽  
Vol 756 (3-4) ◽  
pp. 419-467 ◽  
Author(s):  
E. Iancu ◽  
D.N. Triantafyllopoulos

2021 ◽  
Author(s):  
Paria Sajadpour

In Iran, urban block morphology has changed as a result of the architectural focus shifting away from traditional concerns such as climate-and-energy sensitivity onto issues such as land use, transportation and finance. Current architectural practice while has completely overlooked the architecture of the past, failed to improve the quality of life. The hot, arid climate in combination with non-responsive urban building design has resulted in high energy consumption to keep occupants comfortable. Although it is possible to overcome many of the negative effects of an inefficient design by the use of mechanical systems, this thesis through an architectural response, explores the role of climate sensitive strategies, practiced in the traditional architecture, in recognizing the importance of energy conservation. While it is only at the urban scale that energy-saving strategies could effectively tackle problems, the applicability of these principles will be studied at a neighbourhood scale.


2018 ◽  
Vol 10 (12) ◽  
pp. 4521 ◽  
Author(s):  
Qing-Zhou Wang ◽  
Zhan-Di Chen ◽  
Kuo-Ping Lin ◽  
Ching-Hsin Wang

In order to solve the serious environmental problems caused by the rapid increase in the number of waste tires and unproper storage of waste tires, modifying the asphalt mix for roadway pavement by adding rubber crumb from recycled waste tires is one of the highly effective approach to solve the problem and can achieve the sustainable use of rubber resources. The application of warm-mix crumb rubber-modified asphalt (CRMA) overcomes some issues of the hot-mix CRMA, such as high temperature and high energy consumption. However, there is a lack of estimation methodology for the energy conservation and emission reduction during the production process of warm-mix CRMA. This study develops the estimation models for the evaluation of energy conservation and emissions reduction during different production stages of waste rubber powder, asphalt, CRMA, hot-mix CRMA, and warm-mix CRMA. A list for gas emissions during the mixing and paving process of CRMA mixtures was established through the simulated mixing measurement and paving site measurement. The results show that for each metric ton of CRMA mixture produced, warm mixing can reduce energy consumption by 18~36% and decrease gas emissions during different stages by 15~87% compared to hot mixing. The Evotherm warm-mix CRMA mixture with DAT as warm mix agent (Ev-DAT warm-mix CRMA mixture) is more energy-efficient by saving approximately 108.56 MJ of energy and reducing gas emissions during mixing and paving by at least 32% and 73%, respectively. This model can improves the technical standard of warm-mix CRMA and the energy conservation assessment.


Energies ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 33 ◽  
Author(s):  
Yongming Zhang ◽  
Zhe Yan ◽  
Feng Yuan ◽  
Jiawei Yao ◽  
Bao Ding

Elevators were reported to cause an important part of building energy consumption. In general, each elevator has two operation states: The load state and power regeneration state. During operation, it has the potential to save energy by using regeneration power efficiently. In existing research, a set of energy storage devices are installed for every elevator, which is highly costly. In this paper, an energy conservation approach for elevators based on a direct current (DC) micro-grid is proposed, which has better economy. Then, an innovative energy-efficient device for the elevator group is designed based on a supercapacitor with similar characteristics and lifetimes. In a high-rise building case study, the experimental test and field data collection show that the innovative approach could result in a high energy efficiency within 15.87–23.1% and 24.1–54.5%, respectively. It is expected that the proposed method and designed device could be employed practically, saving energy consumption for elevator reconstruction.


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