Courtyard Geometry on Solar Heat Gain in Hot-Dry Region

2014 ◽  
Vol 935 ◽  
pp. 76-79
Author(s):  
Hadi Bagheri Sabzevar ◽  
Mohd Hamdan Ahmad ◽  
Alireza Gharakhani
Keyword(s):  
Energy Consumption ◽  
Solar Energy ◽  
Literature Review ◽  
Full Advantage ◽  
Open Space ◽  
Design Stage ◽  
Heat Gain ◽  
Reduce Energy Consumption ◽  
Dry Climates ◽  
Geometric Effects

This paper attempts to show the geometric effects of a courtyard under the force of hot and dry climates. A courtyard house is an internal open space around which all the habitable rooms are clustered. The main objective is to review the effects of courtyard geometry on changing the energy consumption of courtyard buildings in order to decrease the emissions of CO2.Literature review on courtyard in hot and dry climate suggest various type of the evaluation of previous results proves that the orientation and the proportions are two important factors for the amount of acquired solar energy in courtyard buildings in order to reduce energy consumption in hot-dry regions. They should be considered in the design stage where the designers can take full advantage. Future, can also be established guidelines for efficient courtyard design in Yazd to reduce energy consumption.

Solar Energy, Methane, China Kang Integrated System Design

2013 ◽  
Vol 732-733 ◽  
pp. 558-563
Author(s):  
Hong Guo Ren
Keyword(s):  
Energy Consumption ◽  
Solar Energy ◽  
System Design ◽  
New Technology ◽  
Integrated System ◽  
Detailed Explanation ◽  
Low Energy Consumption ◽  
Working Principle ◽  
Reduce Energy Consumption ◽  
Integrated System Design

In order to reduce energy consumption, solve the rural house of low energy consumption, integrated system is imperative under the situation of the new technology is applied to the villages and towns in energy conservation and emission reduction can therefore play a big role. This paper puts forward in the northeast area the heated kang facilities, the solar energy and methane integration, this paper introduces the integrated system design part, draw the system design, and the system's working principle and features a detailed explanation.

scholarly journals Optimization of the Exhibition Building Form Based on the Solar Energy Absorption

2020 ◽  
Vol 38 (4) ◽  
pp. 914-924
Author(s):  
Rouhollah Moosavi ◽  
Mohsen Golabi
Keyword(s):  
Solar Energy ◽  
Energy Absorption ◽  
Design Feature ◽  
Energy Performance ◽  
Pyramidal Geometry ◽  
Mountain Climate ◽  
Different Shapes ◽  
Reduce Energy Consumption ◽  
Dry Climates ◽  
Building Form

In this paper, the effect of the form and the shape of the exhibition on the performance of the absorption of solar energy in both cold & mountainous and hot & dry climates has been investigated. The form as the most prominent design feature in buildings has a significant impact on energy efficiency and can be expressed in different ways in a building. In order to evaluate the energy performance of various geometries as an exhibition, the absorption of solar energy in several geometries with different shapes, such as: hexagonal / pyramid / prism / incomplete prism / rectangular cube / cube / hemisphere / cylinder / cylinder combination and the rectangle cube combination, have been numerically simulated. For all geometries, the total area and other simulation conditions are assumed to be the same. The results show that in both types of climate, the most absorbed solar energy is obtained for pyramidal geometry and the least absorption is obtained by hemispherical geometry. The hemisphere form in the hot and dry climate has the best form-to-type ratio in order to provide thermal comfort and reduce energy consumption during the exhibition. In the cold and mountainous climate, pyramidal geometry has the highest energy absorption and is the best option among all investigated geometries. The absorption of solar energy in hemispherical geometry for hot & dry and cold & mountain climate is 66% and 54% compared to pyramidal, respectively.

scholarly journals Optimization of energy consumption per kg of pure meat by electrical and thermal systems in broiler chicken farms

2021 ◽  
Vol 73 (4) ◽  
pp. 966-974
Author(s):  
A. Jahedi ◽  
A. Zarei
Keyword(s):  
Energy Consumption ◽  
Broiler Chicken ◽  
Thermal Systems ◽  
Hot Climate ◽  
Significant Difference ◽  
Reduce Energy Consumption ◽  
The Difference ◽  
Dry Climates ◽  
Different Climates ◽  
Specific Amount

ABSTRACT The present study was conducted to investigate the effect of electrical and thermal systems optimization on energy consumption in broiler farms. Experiments were conducted in 4 different climates (cold, hot, dry, and temperate) with four treatments (4 broiler farms in each region) and 5 iterations (5 rearing periods per farm) on the Ross 308 strain of broiler chicken in a completely randomized basic design. The results showed that the solutions applied in cold and dry climates had a significant effect on reducing energy consumption (P<0.05). In the hot climate, although the reduction in energy consumption was observed after the application of the solutions, the difference was not statistically significant (P>0.05). Also, the application of solutions in temperate climates created a significant difference in the specific amount of thermal energy consumption per kilo of meat and total energy (P<0.05). Overall, the results of the present experiment showed that optimizing the electrical and thermal systems of broiler houses could reduce energy consumption in all climates.

scholarly journals Systematic and data-driven literature review of the energy and indoor environmental performance of swimming facilities

2021 ◽  
Vol 14 (7) ◽  
Author(s):  
Ole Øiene Smedegård ◽  
Bjørn Aas ◽  
Jørn Stene ◽  
Laurent Georges ◽  
Salvatore Carlucci
Keyword(s):  
Energy Consumption ◽  
Air Quality ◽  
Literature Review ◽  
Energy Use ◽  
Residential Buildings ◽  
Energy Performance ◽  
The Past ◽  
Reduce Energy Consumption ◽  
Planning And Operation ◽  
By Products

AbstractDuring the last few decades, focus on measures for energy conservation in buildings has increased considerably. The European Commission implemented the Energy Performance of Buildings Directive, which gave instructions to the member states about how to reduce energy consumption in residential and non-residential buildings. In the process of making the building sector more energy efficient, the building codes generally have become stricter with some simplifications applied in the requirements. For swimming facilities in Norway, these simplifications are undermining the purpose of the code by excluding the energy use related to the operation of swimming pools, which is the main part of the energy use in this building category. In other words, the energy use related to operation of the facility is not regulated. Furthermore, guidelines for the planning and operation of these types of facilities are outdated and research for this building category is sparse. These three aspects mean that there is a considerable potential for improvement. This paper presents a comprehensive literature review with bibliometric and thematic analyses of the contextualized research in swimming facilities from a heating, ventilation, and air-conditioning perspective. It maps the major trends during the past few decades, where areas like solar heating for outdoor pools, energy consumption, and air quality stand out. Except for air quality and disinfection by-products, research on these facilities is highly fragmented without any strong contributors to the various fields. Graphical abstract

Naval Energy Management System

2020 ◽  
Vol 26 (3) ◽  
pp. 20-25
Author(s):  
Laurențiu Bogdan Asalomia ◽  
Gheorghe Samoilescu
Keyword(s):  
Energy Consumption ◽  
Power Systems ◽  
New Technologies ◽  
Integrated Navigation ◽  
Integrated Navigation System ◽  
Efficient Management ◽  
Reduce Energy Consumption ◽  
Energy Efficiency Design Index ◽  
Green Ship

AbstractThe paper analyses the role of control and monitoring of electro-energetic equipment in order to reduce operational costs, increase profits and reduce carbon emissions. The role of SCADA and EcoStruxure Power systems is presented and analysed taking into account the energy consumption and its savings. The paper presents practical and modern solutions to reduce energy consumption by up to 53%, mass by up to 47% and increase the life of the equipment by adjusting the electrical parameters. The Integrated Navigation System has allowed an automatic control and an efficient management. For ships, the implementation of an energy efficiency design index and new technologies was required for the GREEN SHIP project.

The Research of Measuring Approach and Energy Efficiency for Hadoop Periodic Jobs

2015 ◽  
Vol 8 (1) ◽  
pp. 206-210 ◽  
Author(s):  
Yu Junyang ◽  
Hu Zhigang ◽  
Han Yuanyuan
Keyword(s):  
Energy Efficiency ◽  
Cloud Computing ◽  
Energy Consumption ◽  
Energy Saving ◽  
Energy Estimate ◽  
Cloud Platform ◽  
Periodic Tasks ◽  
Current Consumption ◽  
Reduce Energy Consumption

Current consumption of cloud computing has attracted more and more attention of scholars. The research on Hadoop as a cloud platform and its energy consumption has also received considerable attention from scholars. This paper presents a method to measure the energy consumption of jobs that run on Hadoop, and this method is used to measure the effectiveness of the implementation of periodic tasks on the platform of Hadoop. Combining with the current mainstream of energy estimate formula to conduct further analysis, this paper has reached a conclusion as how to reduce energy consumption of Hadoop by adjusting the split size or using appropriate size of workers (servers). Finally, experiments show the effectiveness of these methods as being energy-saving strategies and verify the feasibility of the methods for the measurement of periodic tasks at the same time.

Performance Analysis of Energy Efficient Opportunistic Routing Protocols in Wireless Sensor Network

2019 ◽  
Vol 09 ◽  
Author(s):  
Premkumar Chithaluru ◽  
Rajeev Tiwari ◽  
Kamal Kumar
Keyword(s):  
Energy Consumption ◽  
Routing Protocols ◽  
Energy Efficient ◽  
Data Communication ◽  
Opportunistic Routing ◽  
Link Quality ◽  
Delivery Ratio ◽  
Performance Parameters ◽  
Wireless Medium ◽  
Reduce Energy Consumption

Background: Energy Efficient wireless routing has been an area of research particularly to mitigate challenges surrounding performance in category of Wireless Networks. Objectives: The Opportunistic Routing (OR) technique was explored in recent times and exhibits benefits over many existing protocols and can significantly reduce energy consumption during data communication with very limited compromise on performance. Methods : Using broadcasting nature of the wireless medium, OR practices to discourse two foremost issues of variable link quality and unpredictable node agility in constrained WSNs. OR has a potential to reduce delay in order to increase the consistency of data delivery in network. Results : Various OR based routing protocols have shown varying performances. In this paper, a detailed conceptual and experimental analysis is carried out on different protocols that uses OR technique for providing more clear and definitive view on performance parameters like Message Success Rate, Packet Delivery Ratio and Energy Consumption.

scholarly journals Review on Urban Heat Island in China: Methods, Its Impact on Buildings Energy Demand and Mitigation Strategies

2021 ◽  
Vol 13 (2) ◽  
pp. 762
Author(s):  
Liu Tian ◽  
Yongcai Li ◽  
Jun Lu ◽  
Jue Wang
Keyword(s):  
Energy Consumption ◽  
Urban Heat Island ◽  
Building Energy ◽  
Design Stage ◽  
Heat Island ◽  
Building Energy Consumption ◽  
Rapid Urbanization ◽  
Substantial Impact ◽  
Urban Heat ◽  
The Impact

High population density, dense high-rise buildings, and impervious pavements increase the vulnerability of cities, which aggravate the urban climate environment characterized by the urban heat island (UHI) effect. Cities in China provide unique information on the UHI phenomenon because they have experienced rapid urbanization and dramatic economic development, which have had a great influence on the climate in recent decades. This paper provides a review of recent research on the methods and impacts of UHI on building energy consumption, and the practical techniques that can be used to mitigate the adverse effects of UHI in China. The impact of UHI on building energy consumption depends largely on the local microclimate, the urban area features where the building is located, and the type and characteristics of the building. In the urban areas dominated by air conditioning, UHI could result in an approximately 10–16% increase in cooling energy consumption. Besides, the potential negative effects of UHI can be prevented from China in many ways, such as urban greening, cool material, water bodies, urban ventilation, etc. These strategies could have a substantial impact on the overall urban thermal environment if they can be used in the project design stage of urban planning and implemented on a large scale. Therefore, this study is useful to deepen the understanding of the physical mechanisms of UHI and provide practical approaches to fight the UHI for the urban planners, public health officials, and city decision-makers in China.

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