Energy consumption comparison analysis of high energy efficiency office buildings in typical climate zones of China and U.S. based on correction model

One-stage pre-cooled mixture refrigerant cycle can be applied in small-scale LNG plant and be special suitable for skit mounted LNG plant. It has different character with the C3MR cycle used in large-scale LNG plant. The optimization of the mixture refrigerant is carried out using HYSYS software. The effect of the main process parameters on the performance of the cycle is calculated and discussed. The result shows that appropriate ranges of the process parameters exist. Higher and lower values of the parameters will increase the energy consumption significantly. The results also indicate that the optimization of the one-stage pre-cooled mixture refrigerant cycle can obtain rather high energy efficiency that is competitive with that of the SMR which is widely employed in small-scale LNG plant.

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Efficient Hybrid Emergency Aware MAC Protocol for Wireless Body Sensor Networks

Sensors ◽

10.3390/s18103572 ◽

2018 ◽

Vol 18 (10) ◽

pp. 3572 ◽

Cited By ~ 6

Author(s):

Nadine Bou Dargham ◽

Abdallah Makhoul ◽

Jacques Bou Abdo ◽

Jacques Demerjian ◽

Christophe Guyeux

Keyword(s):

Energy Efficiency ◽

Energy Consumption ◽

Sensor Networks ◽

Mac Protocol ◽

High Energy ◽

Body Sensor Networks ◽

Emergency Situations ◽

High Energy Efficiency ◽

Periodic Traffic ◽

Packet Drop

In Body Sensor Networks (BSNs), two types of events should be addressed: periodic and emergency events. Traffic rate is usually low during periodic observation, and becomes very high upon emergency. One of the main and challenging requirements of BSNs is to design Medium Access Control (MAC) protocols that guarantee immediate and reliable transmission of data in emergency situations, while maintaining high energy efficiency in non-emergency conditions. In this paper, we propose a new emergency aware hybrid DTDMA/DS-CDMA protocol that can accommodate BSN traffic variations by addressing emergency and periodic traffic requirements. It takes advantage of the high delay efficiency of DS-CDMA in traffic burst, and the high energy efficiency of DTDMA in periodic traffic. The proposed scheme is evaluated in terms of delay, packet drop percentage, and energy consumption. Different OPNET simulations are performed for various number of nodes carrying emergency data, and for various payload sizes. The protocol performance is compared to other existing hybrid protocols. Results show that the proposed scheme outperforms the others in terms of delay and packet drop percentage for different number of nodes carrying emergency data, as well as for different payload sizes. It also offers the highest energy efficiency during periodic observation, while adjusting the energy consumption during emergency by assigning spreading codes only to nodes holding emergency data.

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Synergization of air handling units for high energy efficiency in office buildings: Implementation methodology and performance evaluation

Energy and Buildings ◽

10.1016/j.enbuild.2012.07.018 ◽

2012 ◽

Vol 54 ◽

pp. 426-435 ◽

Cited By ~ 9

Author(s):

Yuebin Yu ◽

Mingsheng Liu ◽

Haorong Li ◽

Daihong Yu ◽

Vivian Loftness

Keyword(s):

Energy Efficiency ◽

Performance Evaluation ◽

High Energy ◽

Office Buildings ◽

Air Handling Units ◽

High Energy Efficiency ◽

Implementation Methodology ◽

And Performance

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Effectiveness of High Energy Efficiency to Minimize Energy Consumption for Residential Buildings in Egypt

Engineering Research Journal ◽

10.21608/erj.2020.131818 ◽

2020 ◽

Vol 165 (0) ◽

pp. 78-95

Author(s):

Gehad Mohamed Abdelsalam ◽

Zeinab Mohamed EL Razzaz ◽

Fatma Elnekhaily

Keyword(s):

Energy Efficiency ◽

Energy Consumption ◽

Residential Buildings ◽

High Energy ◽

High Energy Efficiency

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Study on System Frame of China Industry Boilers Energy Efficiency Standards

MATEC Web of Conferences ◽

10.1051/matecconf/201817504003 ◽

2018 ◽

Vol 175 ◽

pp. 04003

Author(s):

Ren Liu ◽

Yuejin Zhao ◽

Lili Chen ◽

Haihong Chen

Keyword(s):

Energy Efficiency ◽

Energy Consumption ◽

Co2 Emission ◽

Central Government ◽

High Energy ◽

Industry Standards ◽

Reduce Energy Consumption ◽

High Energy Efficiency ◽

Energy Efficiency Standards

Energy consumption is always concerned by China government, from 11th five years plan, central government and departments are trying to deduce the energy consumption and CO2 emission. Massive energy were consumed by industry boiler that pointed out by investigation of energy in China industry, standards for boilers, specially energy efficiency standards are always considered to be a key approach to reduce energy consumption and promote high energy efficiency technology. From the results of survey, industry boiler energy efficiency standards are indeed useful to reduce energy consume. In this paper, we try to research on China industry boilers energy efficiency standards, based on that we concluded the system of China industry boiler energy efficiency standards, and listed all the index of those energy efficiency standards which force to comply. It is very useful to make everyone to understand China industry boiler, and industry boiler energy efficiency standards.

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Reactions in Activated Peroxide Systems and their Influences on Bleaching Performance

Mini-Reviews in Organic Chemistry ◽

10.2174/1570193x17999201029191747 ◽

2020 ◽

Vol 17 ◽

Author(s):

Xiaoyan Wang ◽

Jinmei Du ◽

Changhai Xu

Keyword(s):

Aqueous Solution ◽

Hydrogen Peroxide ◽

Energy Efficiency ◽

Textile Industry ◽

High Energy ◽

Side Reactions ◽

Competitive Reactions ◽

High Energy Efficiency ◽

Hydrolysis Of ◽

Bleach Activators

Abstract:: Activated peroxide systems are formed by adding so-called bleach activators to aqueous solution of hydrogen peroxide, developed in the seventies of the last century for use in domestic laundry for their high energy efficiency and introduced at the beginning of the 21st century to the textile industry as an approach toward overcoming the extensive energy consumption in bleaching. In activated peroxide systems, bleach activators undergo perhydrolysis to generate more kinetically active peracids that enable bleaching under milder conditions while hydrolysis of bleach activators and decomposition of peracids may occur as side reactions to weaken the bleaching efficiency. This mini-review aims to summarize these competitive reactions in activated peroxide systems and their influence on bleaching performance.

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