scholarly journals Energy Efficient Air Curtains for Industrial Gates in Cold Climates

2021 ◽  
Vol 246 ◽  
pp. 08005
Author(s):  
A.S. Strongin ◽  
A.M. Zhivov
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Efficient ◽  
Air Conditioning ◽  
Thermal Power ◽  
Hvac Systems ◽  
Energy Resources ◽  
Cold Climates ◽  
Construction Costs ◽  
Reduce Energy Consumption

In geographical areas with cold climates, large, massively constructed industrial and warehouse buildings and logistics complexes are large consumers of energy resources. The great height and large contained volumes of the premises, the presence of a significant number of doors, and building configurations that include many transport corridors all require the use of air-thermal curtains to increase the energy efficiency of the buildings’ heating, ventilating, and air-conditioning (HVAC) systems, which commonly produce several thousand kilowatts of thermal power. Optimization of air curtains can improve the microclimates of the premises, achieve savings in the initial construction costs, and also reduce energy consumption during operation by 10–20%.

Energy Efficiency Design Strategies for Greenhouse in Colorado

2012 ◽  
Author(s):  
Byung Chang Kwag ◽  
Moncef Krarti
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Efficient ◽  
Climatic Conditions ◽  
Design Strategies ◽  
Climate Conditions ◽  
Agricultural Industry ◽  
Heating Systems ◽  
Outdoor Climate ◽  
Reduce Energy Consumption

A basic principle of well designed greenhouse design emphasizes the utilization of solar energy as much as possible to grow the plants indoors during extreme outdoor climate conditions. Greenhouses can use significant amount of energy due to several factors including poor envelope design, inappropriate maintenance practices, and heavy reliance on fuel-based heating systems. In order to reduce energy consumption in the agricultural industry of Colorado, it is important to design energy efficient greenhouses under Colorado climatic conditions.

scholarly journals Effect of Atrium Compare to Courtyard on Energy Demand and Daylight in Row Housed in Toronto

2021 ◽  
Author(s):  
Tamanna Kabir
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Demand ◽  
Cold Climates ◽  
Floor Area ◽  
Large Window ◽  
Interior Spaces ◽  
Reduce Energy Consumption ◽  
Daylight Performance ◽  
Row Houses

Row houses in cold climates with increased shared wall for energy efficiency, suffer from darker interior spaces. Addition of courtyards can solve this problem to some extent, but courtyards are responsible for higher energy consumption during winter. This study investigates an alternative option, i.e. converting courtyard into atrium during winter for assessing its energy and daylight performance in row houses in Toronto. Results are determined by using Design Builder software. Research shows, during winter atrium options in row houses can reduce energy consumption compared to courtyard, but at the same time daylit floor area above target illuminance is also reduced. However, bigger courtyard having large window to wall ratio, clear glazing for courtyard windows and low e coated glazing for skylight can create a balance between increased energy consumption and decreased daylighting inside the house to maximize the benefits from converting courtyard into atrium during winter in Toronto row houses.

Energy Efficient Cognitive M2M Communications

2016 ◽  
Vol 8 (3) ◽  
pp. 1-9 ◽  
Author(s):  
S. Alabadi ◽  
Predrag Rapajic ◽  
K. Arshad ◽  
Soheil Rostami
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Cognitive Radio ◽  
Energy Efficient ◽  
Mode Switching ◽  
Sleep Mode ◽  
Reduce Energy Consumption ◽  
Simulation Results ◽  
To Come ◽  
Utilisation Efficiency

The number of Machine-to-Machine (M2M) devices has increased massively in the last few years and will continue to increase in the years to come. Spectrum utilisation efficiency and energy efficiency are the main challenges and design goals for M2M networks. Cognitive radio (CR) is a promising technology that can address these challenges. In this paper, the authors have proposed and developed an energy efficient mechanism to reduce energy consumption in Cognitive M2M (CM2M) networks. Their solution guarantees the throughput and reliability constraints for CM2M Devices (CM2MDs). The proposed mechanism can reduce energy consumption in CM2M networks by exploiting efficient sensing and accessing schemes for CM2MDs. The authors further develop sleep-mode/switching and accessing techniques to work efficiently with the proposed mechanism. The simulation results show that the proposed mechanism guarantees a desirable throughput and reduces overall energy consumption in the network.

Energy-Efficient Technologies in the Construction of School in Hot Climates

2014 ◽  
Vol 587-589 ◽  
pp. 287-293 ◽  
Author(s):  
Anastasiia Sergeevna Fidrikova ◽  
Olga Sergeevna Grishina ◽  
Alexey Pavlovich Marichev ◽  
Xeniya Mikhailovna Rakova
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Energy Efficient ◽  
Climatic Conditions ◽  
Energy Reduction ◽  
Insulating Materials ◽  
Space Planning ◽  
Class A ◽  
Reduce Energy Consumption

Reduction of the costs in the operation of the building, due to energy-saving technologies, is a priority in the construction today. This article discusses some ways to reduce energy consumption of schools in hot climates such as the installation of solar collectors, using of triple-glazed windows and modern insulating materials. These methods of energy reduction are determined by the selected space-planning solutions, constructive features of the structure, financial possibilities and climatic conditions. Considering these above listed characteristics, the school was designed for the class A of energy efficiency.[1-4]

Evaluating the Performance of Eaves to Promote Energy Efficiency of Traditional Dwellings in Suzhou

2016 ◽  
Vol 858 ◽  
pp. 234-240
Author(s):  
Yue Fu ◽  
Wei Ju Yang
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Efficient ◽  
Air Conditioning ◽  
Thermal Environment ◽  
Effective Strategy ◽  
Local Climate ◽  
Indoor Thermal Environment ◽  
Heating And Cooling ◽  
Simulation Results

A shading roof can be an effective strategy to decrease the air-conditioning energy consumption as well as to improve the thermal environment inside a house in the place that is hot in summer and cold in winter. In Suzhou, a city in such place, traditional dwellings were constructed with shading roof eaves that have different sizes, allowing them adaptive to local climate. These eaves are worthy of being studied and improved. This study presents a summary of the sizes of the shading roof eaves of traditional Suzhou dwellings. The southward eave that has the greatest effect on indoor thermal environment is taken as the object of the current study, and a traditional Suzhou dwelling is selected as our case for the current study. Several comparative models are built, in which, the southward length of the roof eave is increased by 0.2m, from 0m to 2m. The effects of the length on both heating and cooling energy consumption are simulated by using the software Energyplus. As shown in the quantitative analysis of the simulation results, the structure is energy-efficient when the length is less than 0.6m, and the annual energy consumption reaches its minimum when the length is 0.4m.

scholarly journals Increasing Energy Efficiency of the Executive Mechanisms of Intellectual Systems

2021 ◽  
pp. 23-29
Author(s):  
A Djalilov ◽  
R Baratov ◽  
E Sobirov ◽  
M Begmatov ◽  
X Valixonova
Keyword(s):  
Water Management ◽  
Energy Efficiency ◽  
Energy Consumption ◽  
Positive Solution ◽  
Energy Efficient ◽  
Low Energy ◽  
Energy Resources ◽  
Water Management System ◽  
Low Energy Consumption ◽  
The World

At the same time, the demand for water and energy resources around the world is growing year by year. This requires the efficient use of available water and energy resources. Currently, attention is paid to the low energy consumption of devices manufactured in all areas. In particular, in our country, scientific research is being conducted to create energy-efficient devices in the water management system. This article is devoted to the positive solution of the listed problematic issues.

scholarly journals Effect of Atrium Compare to Courtyard on Energy Demand and Daylight in Row Housed in Toronto

2021 ◽  
Author(s):  
Tamanna Kabir
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Demand ◽  
Cold Climates ◽  
Floor Area ◽  
Large Window ◽  
Interior Spaces ◽  
Reduce Energy Consumption ◽  
Daylight Performance ◽  
Row Houses

Row houses in cold climates with increased shared wall for energy efficiency, suffer from darker interior spaces. Addition of courtyards can solve this problem to some extent, but courtyards are responsible for higher energy consumption during winter. This study investigates an alternative option, i.e. converting courtyard into atrium during winter for assessing its energy and daylight performance in row houses in Toronto. Results are determined by using Design Builder software. Research shows, during winter atrium options in row houses can reduce energy consumption compared to courtyard, but at the same time daylit floor area above target illuminance is also reduced. However, bigger courtyard having large window to wall ratio, clear glazing for courtyard windows and low e coated glazing for skylight can create a balance between increased energy consumption and decreased daylighting inside the house to maximize the benefits from converting courtyard into atrium during winter in Toronto row houses.

scholarly journals Assessment of the energy efficiency potential of mining enterprises

2020 ◽  
Vol 201 ◽  
pp. 01034
Author(s):  
Anton Kleshchov ◽  
Oleh Terentiev ◽  
Nataliia Shevchuk ◽  
Oleksandr Temchenko
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Systematic Approach ◽  
Electrical Energy ◽  
Payback Period ◽  
Energy Resources ◽  
Mining Enterprise ◽  
Reduce Energy Consumption ◽  
Main Components ◽  
Energy Efficiency Potential

The paper studies the problematic issues of assessing the potential and improving the energy efficiency at mining enterprises. The necessity of developing a methodology for determining the unreasonable losses of energy resources and introducing the fast-payback options is substantiated. In order to solve this problem, a systematic approach has been used, which is based on experimental data and accounting the global economic situation. An experimental-mathematical approach is proposed for determining the main components of technologically unreasonable losses of electrical energy resources, such as the modes of transformers and pumps operation, an impact of electrical energy quality on energy consumption. The methodology was approbated at the “Mineral” mining enterprise. The proposed solutions are able to reduce energy consumption by 10% of the total with an average payback period of up to two years.

scholarly journals Energy-Saving Potential of Extending Temperature Set-Points in a VRF Air-Conditioned Building

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2160 ◽  
Author(s):  
Joowook Kim ◽  
Doosam Song ◽  
Suyeon Kim ◽  
Sohyun Park ◽  
Youngjin Choi ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Thermal Comfort ◽  
Energy Saving ◽  
Energy Efficient ◽  
Air Conditioning ◽  
Control Strategies ◽  
Hvac Systems ◽  
Set Point ◽  
Energy Saving Potential ◽  
Human Thermal Comfort

Building energy savings and occupant thermal comfort are the main issues in building technology. As such, the development of energy-efficient heating, ventilation, and air-conditioning (HVAC) systems and the control strategies of HVAC systems are emerging as important topics in the HVAC industry. Variable refrigerant flow (VRF) systems have efficient energy performance, so the use of VRF systems in buildings is increasing. However, most studies on VRF systems focus on improving mechanical efficiency, with few studies on energy-efficient control while satisfying the thermal comfort of occupants. The goal is to estimate the energy-saving potential of adjusting the temperature set-points and dead-band (range) in VRF air-conditioned building. To do so, we analyzed the influence of control strategies of a VRF system on human thermal comfort and energy consumption using a simulation method. The results showed that energy consumption can be reduced by 25.4% for predicted mean vote (PMV)-based control and 27.0% for the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) comfort range control compared with the typical set-point temperature control of a VRF system. The indoor thermal environments of the analyzed control strategies are controlled in the thermal comfort range, which is based on a PMV at ±0.5. Compared with the typical set-point control, PMV and ASHRAE comfort range-based control reduced the operation time of the compressor in the VRF system.

scholarly journals Towards Energy Efficiency in Data Centers: An Industrial Experience Based on Reuse and Layout Changes

2021 ◽  
Vol 11 (11) ◽  
pp. 4719
Author(s):  
Romulos da S. Machado ◽  
Fabiano dos S. Pires ◽  
Giovanni R. Caldeira ◽  
Felipe T. Giuntini ◽  
Flávia de S. Santos ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Data Center ◽  
Air Conditioning ◽  
Data Centers ◽  
Energy Resources ◽  
Cooling Power ◽  
Industrial Experience ◽  
Use Of Resources

Data centers are widely recognized for demanding many energy resources. The greater the computational demand, the greater the use of resources operating together. Consequently, the greater the heat, the greater the need for cooling power, and the greater the energy consumption. In this context, this article aims to report an industrial experience of achieving energy efficiency in a data center through a new layout proposal, reuse of previously existing resources, and air conditioning. We used the primary resource to adopt a cold corridor confinement, the increase of the raised floor’s height, and a better direction of the cold airflow for the aspiration at the servers’ entrance. We reused the three legacy refrigeration machines from the old data center, and no new ones were purchased. In addition to 346 existing devices, 80 new pieces of equipment were added (between servers and network assets) as a load to be cooled. Even with the increase in the amount of equipment, the implementations contributed to energy efficiency compared to the old data center, still reducing approximately 41% of the temperature and, consequently, energy-saving.

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