Ten Tips for Energy-Efficient Air-Conditioned Buildings

The Developing communities in their path for rapid development is endeavoring to make all necessary and appropriate measures to enhance the efficiency of energy utilization and increase the beneficiation of the energy resources. The energy production, transmission, distribution and utilization efficiency becomes a vital factor and measure of national development. Governmental organizations were established earlier to be responsible for energy planning and efficient utilization, information dissemination and capacity building as well as devising the necessary codes and standards. Throughout the Nation Energy resources are widely used and consumption rates are in general exceeding the International accepted values. Energy rationalization and audit exercises were developed and monitored by Governmental authorities, Universities and Research centers through the past two decades with a definitive positive energy reduction and beneficiation. The development of the relevant codes for Residential and Commercial Energy Efficiency in Building is underway through the governmental bodies responsible for the research, training and development in the building Technology sector and is the umbrella under which the National and Unified Arab Codes are developed and issued.

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An International Outlook of Innovative Energy Efficient Designs of Low Carbon Buildings

Volume 11: Emerging Technologies ◽

10.1115/imece2013-62842 ◽

2013 ◽

Author(s):

Essam E. Khalil

Keyword(s):

Information Dissemination ◽

Rapid Development ◽

National Development ◽

Energy Performance ◽

Energy Resources ◽

Energy Utilization ◽

Utilization Efficiency ◽

Positive Energy ◽

Low Carbon ◽

Legal Standards

The Developing communities in their path for rapid development is endeavoring to make all necessary and appropriate measures to enhance the efficiency of energy utilization and increase the beneficiation of the energy resources. The energy production, transmission, distribution and utilization efficiency becomes a vital factor and measure of national development. Governmental organizations were established earlier to be responsible for energy planning and efficient utilization, information dissemination and capacity building as well as devising the necessary codes and standards. Throughout the Nation Energy resources are widely used and consumption rates are in general exceeding the International accepted values. Energy rationalization and audit exercises were developed and monitored by Governmental authorities, Universities and Research centers through the past two decades with a definitive positive energy reduction and beneficiation. The development of the relevant codes for Residential and Commercial Energy Efficiency in Building is underway through the governmental bodies responsible for the research and development in the building Technology sector and is the umbrella under which the National and Unified Arab Codes are developed and issued. A proposed new Energy Performance in Buildings Directive based on relevant ISO, ASHRAE and LEED would be beneficial to practitioners to meet the following targets of Energy Performance Directive: 1. “Legestilative authorities shall ensure that, when buildings are constructed, sold or rented out, an energy performance certificate should be made available to the owner. 2. The energy performance certificate for buildings shall include reference values such as currant legal standards and benchmarks in order to make it possible for consumers to compare and assess the energy performance of the building. The certificate shall be accompanied by recommendations for cost-effective improvement of the energy performance…”.Ultimately a unique energy standard is sought for Middle East region to harness the energy consumption. This can be achieved by developing methodologies for energy declaration of the buildings and to provide a labeling system and energy signature for selected buildings.

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Energy Efficiency in Buildings: Think Pyramids

Volume 10: Emerging Technologies and Topics; Public Policy ◽

10.1115/imece2012-85201 ◽

2012 ◽

Author(s):

Essam E. Khalil

Keyword(s):

Energy Efficiency ◽

Reference Values ◽

Rapid Development ◽

National Development ◽

Energy Performance ◽

Energy Resources ◽

Energy Utilization ◽

Utilization Efficiency ◽

Positive Energy ◽

Legal Standards

The developing communities in their path for rapid development is endeavoring to make all necessary and appropriate measures to enhance the efficiency of energy utilization and increase the beneficiation of the energy resources. The energy production, transmission, distribution and utilization efficiency becomes a vital factor and measure of national development. Governmental organizations were established earlier to be responsible for energy planning and efficient utilization, information dissemination and capacity building as well as devising the necessary codes and standards. Throughout the Nation, energy resources are widely used and consumption rates are in general exceeding the International accepted values. Energy rationalization and audit exercises were developed and monitored by Governmental Authorities, Universities and Research centers through the past two decades with a definitive positive energy reduction and beneficiation. The development of the relevant codes for Residential and Commercial Energy Efficiency in buildings is underway through the governmental bodies responsible for the research and development in the building Technology sector and is the umbrella under which the National and Unified Arab Codes are developed and issued. A proposed new Energy Performance in Buildings Directive (EPBD) would fulfill the following main targets of energy performance directive: 1. “Legestilative authorities shall ensure that, when buildings are constructed, sold or rented out, an energy performance certificate is made available to the owner or by the owner to the prospective buyer or tenant, as the case might be. … 2. The energy performance certificate for buildings shall include reference values such as currant legal standards and benchmarks in order to make it possible for consumers to compare and assess the energy performance of the building. The certificate shall be accompanied by recommendations for cost-effective improvement of the energy performance…” The following steps shall be required for the energy certification: 1. Develop methodologies for energy declaration of the buildings. 2. Develop reference values (key numbers) and /or systems for benchmarking. 3. Provide a labeling system for selected buildings. 4. Describe an energy signature for the building.

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A Fast Neighbor Discovery Algorithm in WSNs

Sensors ◽

10.3390/s18103319 ◽

2018 ◽

Vol 18 (10) ◽

pp. 3319 ◽

Cited By ~ 6

Author(s):

Liangxiong Wei ◽

Weijie Sun ◽

Haixiang Chen ◽

Ping Yuan ◽

Feng Yin ◽

...

Keyword(s):

Wireless Sensor Networks ◽

Energy Consumption ◽

Energy Efficient ◽

Rapid Development ◽

Energy Utilization ◽

Utilization Efficiency ◽

Wireless Sensor ◽

Neighbor Discovery ◽

Low Duty Cycle ◽

Discovery Algorithms

With the quick development of Internet of Things (IoT), one of its important supporting technologies, i.e., wireless sensor networks (WSNs), gets much more attention. Neighbor discovery is an indispensable procedure in WSNs. The existing deterministic neighbor discovery algorithms in WSNs ensure that successful discovery can be obtained within a given period of time, but the average discovery delay is long. It is difficult to meet the need for rapid discovery in mobile low duty cycle environments. In addition, with the rapid development of IoT, the node densities of many WSNs greatly increase. In such scenarios, existing neighbor discovery methods fail to satisfy the requirement in terms of discovery latency under the condition of the same energy consumption. This paper proposes a group-based fast neighbor discovery algorithm (GBFA) to address the issues. By carrying neighbor information in beacon packet, the node knows in advance some potential neighbors. It selects more energy efficient potential neighbors and proactively makes nodes wake up to verify whether these potential neighbors are true neighbors, thereby speeding up neighbor discovery, improving energy utilization efficiency and decreasing network communication load. The evaluation results indicate that, compared with other methods, GBFA decreases the average discovery latency up to 10 . 58 % at the same energy budget.

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Research and Design of Wind and Solar Complementary Electric Sightseeing Boat

E3S Web of Conferences ◽

10.1051/e3sconf/202014502056 ◽

2020 ◽

Vol 145 ◽

pp. 02056

Author(s):

Haomin Zhang ◽

Xingang Xu

Keyword(s):

Power Generation ◽

Fossil Fuels ◽

High Efficiency ◽

Rapid Development ◽

Light Energy ◽

Energy Utilization ◽

Utilization Efficiency ◽

Lake Area ◽

Domestic Water ◽

Hull Design

To solve the problem of rapid development of domestic water tourism and water pollution in scenic waters, windsurfing technology and solar photovoltaic technology are applied to small and medium-sized sightseeing cruise ships. While optimizing the hull design and component coordination, the application of automatic control technology further improves the utilization efficiency of wind and light energy, and achieves the adaptation of the sail angle of attack and the efficient coupling of the two energies. The ship mainly uses the natural resources of solar energy and wind energy. It will not burn fossil fuels during the ship’s travel, thus reducing the emission of toxic and harmful substances, which has positive significance for environmental protection. In short, the solar wind-assisted power generation ship studied in this project has remarkable features such as zero emission, high degree of intelligence, significant wind-assisted effect, high efficiency of light energy utilization, and low hull space occupation. Compared with the ordinary lake area cruise ship, the energy-saving and emission reduction effect of the power generation ship is very obvious[1].

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Study of Efficiency Power Plant Based on Benefit Sharing Model

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.291-294.2358 ◽

2013 ◽

Vol 291-294 ◽

pp. 2358-2361

Author(s):

Hong Yan Liu ◽

Shi Zheng Liu

Keyword(s):

Power Plant ◽

Rapid Development ◽

Energy Utilization ◽

Utilization Efficiency ◽

Benefit Sharing ◽

Power Construction ◽

New Energy ◽

Increasing Demand ◽

Saving Mode ◽

Energy Shortage

With the rapid development of Chinese economic, environmental pollution, energy shortages and other issues become increasingly prominent. Relying solely on the power construction is difficult to meet the country's rapidly increasing demand for electricity. Energy conservation, rational and efficient use of energy is the effective initiatives to protect the environment and ease the energy shortage. Efficiency Power Plant (EPP) can improve the energy utilization efficiency of the whole society. It is the most new energy-saving mode, many issues need to coordinate and handle during its implementation. Benefit sharing is a key prerequisite for enterprise to implement the EPP. In this paper, we integrate all aspects of EPP’s risk factors during its implementation to build a benefit sharing model of Efficiency Power Plant. And prove the feasibility and accuracy.

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Regional integrated energy system schemes selection based on risk expectation and Mahalanobis-Taguchi system

Journal of Intelligent & Fuzzy Systems ◽

10.3233/jifs-190211 ◽

2021 ◽

pp. 1-18

Author(s):

Jiahang Yuan ◽

Yun Li ◽

Xinggang Luo ◽

Lingfei Li ◽

Zhongliang Zhang ◽

...

Keyword(s):

Energy Demand ◽

Choquet Integral ◽

Subjective Evaluation ◽

Risk Attitude ◽

Energy System ◽

Energy Utilization ◽

Utilization Efficiency ◽

Energy Structure ◽

Fuzzy Measures ◽

Integrated Energy System

Regional integrated energy system (RIES) provides a platform for coupling utilization of multi-energy and makes various energy demand from client possible. The suitable RIES composition scheme will upgrade energy structure and improve integrated energy utilization efficiency. Based on a RIES construction project in Jiangsu province, this paper proposes a new multi criteria decision-making (MCDM) method for the selection of RIES schemes. Because that subjective evaluation on RIES schemes benefit under criteria has uncertainty and hesitancy, intuitionistic trapezoidal fuzzy number (ITFN) which has the better capability to model ill-known quantities is presented. In consideration of risk attitude and interdependency of criteria, a new decision model with risk coefficients, Mahalanobis-Taguchi system and Choquet integral is proposed. Firstly, the decision matrices given by experts are normalized, and then are transformed to minimum expectation matrices according to different risk coefficients. Secondly, the weights of criteria from different experts are calculated by Mahalanobis-Taguchi system. Mobius transformation coefficients based on interaction degree are to calculate 2-order additive fuzzy measures, and then the comprehensive weights of criteria are obtained by fuzzy measures and Choquet integral. Thirdly, based on group decision consensus requirement, the weights of experts are obtained by the maximum entropy and grey correlation. Fourthly, the minimum expectation matrices are aggregated by the intuitionistic trapezoidal fuzzy Bonferroni mean operator. Thus, the ranking result according to the comparison rules using the minimum expectation and the maximum expectation is obtained. Finally, an illustrative example is taken in the present study to make the proposed method comprehensible.

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Coordination of Industrial Load Management and Micro-Turbines for Improving Renewable Energy Utilization Efficiency

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) ◽

10.1109/ei250167.2020.9347373 ◽

2020 ◽

Author(s):

Bin Lin ◽

Kaiwen Zeng ◽

Haizhu Wang ◽

Jianing Liu ◽

Bin Du ◽

...

Keyword(s):

Renewable Energy ◽

Energy Utilization ◽

Utilization Efficiency ◽

Load Management

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Evaluation of Energy Efficiency for a CCHP System With Available Microturbine

Volume 3: Turbo Expo 2007 ◽

10.1115/gt2007-27883 ◽

2007 ◽

Cited By ~ 2

Author(s):

H. X. Liang ◽

Q. W. Wang

Keyword(s):

Gas Turbine ◽

Waste Heat ◽

Energy System ◽

Primary Energy ◽

Economic Benefits ◽

Optimal Operation ◽

Energy Utilization ◽

Utilization Efficiency ◽

Energetic Efficiency ◽

Efficiency Evaluation

This paper deals with the problem of energy utilization efficiency evaluation of a microturbine system for Combined Cooling, Heating and Power production (CCHP). The CCHP system integrates power generation, cooling and heating, which is a type of total energy system on the basis of energy cascade utilization principle, and has a large potential of energy saving and economical efficiency. A typical CCHP system has several options to fulfill energy requirements of its application, the electrical energy can be produced by a gas turbine, the heat can be generated by the waste heat of a gas turbine, and the cooling load can be satisfied by an absorption chiller driven by the waste heat of a gas turbine. The energy problem of the CCHP system is so large and complex that the existing engineering cannot provide satisfactory solutions. The decisive values for energetic efficiency evaluation of such systems are the primary energy generation cost. In this paper, in order to reveal internal essence of CCHP, we have analyzed typical CCHP systems and compared them with individual systems. The optimal operation of this system is dependent upon load conditions to be satisfied. The results indicate that CCHP brings 38.7 percent decrease in energy consumption comparing with the individual systems. A CCHP system saves fuel resources and has the assurance of economic benefits. Moreover, two basic CCHP models are presented for determining the optimum energy combination for the CCHP system with 100kW microturbine, and the more practical performances of various units are introduced, then Primary Energy Ratio (PER) and exergy efficiency (α) of various types and sizes systems are analyzed. Through exergy comparison performed for two kinds of CCHP systems, we have identified the essential principle for high performance of the CCHP system, and consequently pointed out the promising features for further development.

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