Analysis of the Factors Affecting Freight Transportation Energy Consumption Based on LMDI

The refrigerant mixtures provide an important direction in selecting new environment-friendly alternative to match the desirable properties with the existing halogenated refrigerants or future use in the new devices, in which, HFCs refrigerants with zero ODP combined with HCs refrigerants with zero ODP and lower GWP are of important value in the fields of application. In the present work, research on HFC125/HC290 (25/75 by mass) binary refrigerant mixture used in heat pumps was carried out, and parameters, factors affecting the performance were investigated, and compared with that of HCFC22 under the same operating conditions. It has been found that the new mixture can improve the actual COP by 2 to 13% and hence it can reduce the energy consumption by 20 to 31.5%. The overall performance has proved that the new refrigerant mixture could be a promising substitute for HCFC22.

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Investigation of Airflow and Temperature Distribution in the Freezer Cabinet of a Domestic No-Frost Refrigerator

Volume 2: Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Computational Heat Transfer ◽

10.1115/ht2009-88121 ◽

2009 ◽

Author(s):

Melike Nikbay ◽

M. Berkay Acikgoz ◽

Husnu Kerpicci

Keyword(s):

Energy Consumption ◽

Temperature Distribution ◽

Uniform Temperature ◽

Flow Conditions ◽

Piv Measurements ◽

Factors Affecting ◽

Flow And Heat Transfer ◽

Cfd Analyses ◽

Off Time ◽

Laminar Flow Conditions

Uniformity of temperature distribution in a loaded freezer cabinet is one of the most important factors affecting energy consumption of a refrigerator. Present study focuses on the airflow behavior and the temperature distribution inside the freezer compartment of a domestic no-frost refrigerator. Energy consumption increases in a freezer cabinet if the temperature difference between the warmest load package and average of all packages is high. The objective is to reduce the energy consumption by providing a uniform temperature distribution and also to keep the food fresh for a longer time. In this study, the air flow and heat transfer during on-time and off-time periods inside the freezer compartment is modeled by considering turbulent and laminar flow conditions in 3D transient CFD analyses. The initial and boundary conditions are provided from temperature controlled room and PIV measurements. The CFD analyses obtained are verified by experimental measurements.

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The impacts of urban transportation and land use policies on transportation energy consumption

Transportation Research ◽

10.1016/0041-1647(78)90061-8 ◽

1978 ◽

Vol 12 (2) ◽

pp. 143-144

Keyword(s):

Land Use ◽

Energy Consumption ◽

Urban Transportation ◽

Transportation Energy ◽

Land Use Policies

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A Bit String Content Aware Chunking Strategy for Reduced CPU Energy on Cloud Storage

Journal of Electrical and Computer Engineering ◽

10.1155/2015/242086 ◽

2015 ◽

Vol 2015 ◽

pp. 1-8 ◽

Cited By ~ 1

Author(s):

Bin Zhou ◽

ShuDao Zhang ◽

Ying Zhang ◽

JiaHao Tan

Keyword(s):

Energy Consumption ◽

Data Center ◽

System Performance ◽

Cloud Storage ◽

High Performance ◽

Factors Affecting ◽

Redundant Data ◽

Energy Factors ◽

The Cost ◽

Content Aware

In order to achieve energy saving and reduce the total cost of ownership, green storage has become the first priority for data center. Detecting and deleting the redundant data are the key factors to the reduction of the energy consumption of CPU, while high performance stable chunking strategy provides the groundwork for detecting redundant data. The existing chunking algorithm greatly reduces the system performance when confronted with big data and it wastes a lot of energy. Factors affecting the chunking performance are analyzed and discussed in the paper and a new fingerprint signature calculation is implemented. Furthermore, a Bit String Content Aware Chunking Strategy (BCCS) is put forward. This strategy reduces the cost of signature computation in chunking process to improve the system performance and cuts down the energy consumption of the cloud storage data center. On the basis of relevant test scenarios and test data of this paper, the advantages of the chunking strategy are verified.

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Do Tourism Development, Energy Consumption and Transportation Demolish Sustainable Environments? Evidence from Chinese Provinces

Sustainability ◽

10.3390/su132212361 ◽

2021 ◽

Vol 13 (22) ◽

pp. 12361

Author(s):

Abdul Rauf ◽

Ilhan Ozturk ◽

Fayyaz Ahmad ◽

Khurram Shehzad ◽

Abbas Ali Chandiao ◽

...

Keyword(s):

Energy Consumption ◽

Dominant Role ◽

National Level ◽

Tourism Development ◽

Value Added ◽

Tourism Industry ◽

Development Economic ◽

Transportation Energy ◽

Economic Progress ◽

Bidirectional Association

China is performing a dominant role in the world’s economic growth, but it has mainly been the commencement of the Belt and Road Initiative (BRI) that has significantly increased its importance around the world. Recently, the emergence of the tourism industry has been considered as an alternative for sustainable economic and ecological development, which is ironic. Although China is promoting tourism in various regions under “The New Normal” phase, it needs to proactively address the challenges of dismantling, for the environment. The fundamental objective of the current study is to determine the long-term affiliation between tourism development, economic progress, transportation, energy consumption, value added hotel catering services, and environmental degradation (CO2) for a panel of thirty (30) provinces of China over the period of 1995–2017. Primarily, we applied the CD test for investigating cross dependence; subsequently, conventional and CD based panel unit root tests (CIPS) were carried out to deal with the puzzle of the stationarity of the panel series. The results of the dynamics panel, DOLS, FMOLS, and PMG, indicated that transportation, energy consumption, and value added hotel and catering services have a strong positive association with carbon emission, but tourism development has mixed links with ecological degradation. Additionally, the causative based test revealed the bidirectional association of tourism development, transportation, economic progress, and energy consumption with environmental quality. The retrieved estimates conferred a few guidelines, concerning the presence of BRI projects, for the Chinese administration at the provincial and national level: initiating the renewable based energy projects and possibly wishing to decrease the use of fossil fuel based energy in the industry, transportation, and hotels and catering sectors. Furthermore, the prevalence of green investment in provinces may motivate economic progress and tourism development, without worsening the atmosphere.

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Motivating factors affecting the individual energy consumption behavior

SHS Web of Conferences ◽

10.1051/shsconf/202112408003 ◽

2021 ◽

Vol 124 ◽

pp. 08003

Author(s):

Jalal ud Din Akbar ◽

Muhammad Ridhuan Tony Lim Abdullah

Keyword(s):

Climate Change ◽

Energy Consumption ◽

Human Behavior ◽

Clean Energy ◽

Daily Routine ◽

Factors Affecting ◽

Number Of Factors ◽

Development Goals ◽

The Government ◽

The Individual

Global challenges of climate change and environmental deterioration helped in formulating seventeen sustainable development goals through United Nation. Achieving these sustainable goals, Malaysia initiated and track progress towards affordable and clean energy. The natural environment and climate are mostly influenced by human behavior. Due to the role of human behavior in climate change, a strong tendency towards the pursuit of energy sustainability exists. Attention is paid to strengthen the human behavior from general acts of doing things to carrying specific actions by adopting a responsible behavior into daily routine. A number of factors were identified through literature such as social structure, institution, and education for understanding the individual behavior for sustainability with regard to energy consumption. Many experts related to the field of energy were engaged to sort and prioritize these factors with respect to their importance by using multi-criteria decision making tool of analytical hierarchy process (AHP). The experts were selected from different sectors such as academia, NGOs and industry. With the help of experts, a framework of individual energy consumption behaviour is developed to allow the government and other stakeholders to make policies accordingly to achieve energy sustainable.

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