scholarly journals Energy consumption in the life cycle of plumbing fixtures

2018 ◽  
Vol 19 (1) ◽  
pp. 70-78
Author(s):  
A. Kalbusch ◽  
E. Ghisi
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Total Energy ◽  
The Self ◽  
University Campus ◽  
Southern Brazil ◽  
Total Energy Consumption ◽  
Production Phase ◽  
Use Phase

Abstract The main objective of this paper is to propose a method for quantifying the energy consumption in the life cycle of different plumbing fixtures. The method can be used to estimate the energy consumption in the production, use and disposal phases of plumbing fixtures. This allows for the comparison between the performances of different plumbing fixtures and the identification of the share of each phase on the energy consumption over the life cycle. The method was applied in a case study in Southern Brazil to quantify the energy consumption in the life cycle of two types of taps installed on a university campus. The total energy consumption in the life cycle of ordinary and self-closing taps used in the study was respectively, 177.71 MJ and 164.11 MJ over 4 years. Production accounted for 33% of the energy consumption share of the ordinary tap, while the use phase accounted for 65% and the disposal phase for 2%. For the self-closing tap, the production phase accounted for 46% of the energy consumption share, the use phase for 52% and the disposal phase for 2%. Therefore, considering the energy consumption in the life cycle, self-closing taps should be preferred over ordinary taps.

scholarly journals EVALUATION OF ENERGY-EFFICIENT RETROFIT POTENTIAL FOR GOVERNMENT OFFICES IN INDIA

2021 ◽  
Vol 6 (2) ◽  
pp. 03-17
Author(s):  
Gazal Dandia ◽  
◽  
Pratheek Sudhakaran ◽  
Chaitali Basu ◽  
◽  
...  
Keyword(s):  
Energy Consumption ◽  
Total Energy ◽  
Energy Efficient ◽  
Energy Demand ◽  
Energy Savings ◽  
High Energy ◽  
Payback Period ◽  
Total Energy Consumption ◽  
The Cost

Introduction: High energy consumption by buildings is a great threat to the environment and one of the major causes of climate change. With a population of 1.4 billion people and one of the fastest-growing economies in the world, India is extremely vital for the future of global energy markets. The energy demand for construction activities continues to rise and it is responsible for over one-third of global final energy consumption. Currently, buildings in India account for 35% of total energy consumption and the value is growing by 8% annually. Around 11% of total energy consumption are attributed to the commercial sector. Energy-efficient retrofitting of the built environments created in recent decades is a pressing urban challenge. Presently, most energy-efficient retrofit projects focus mainly on the engineering aspects. In this paper, we evaluate various retrofitting options, such as passive architectural interventions, active technological interventions, or a combination of both, to create the optimum result for the selected building. Methods: Based on a literature study and case examples, we identified various energy-efficient retrofit measures, and then examined and evaluated those as applied to the case study of Awas Bhawan (Rajasthan Housing Board Headquarters), Jaipur, India. For the evaluation, we developed a simulation model using EQuest for each energy measure and calculated the resultant energy savings. Then, based on the cost of implementation and the cost of energy saved, we calculated the payback period. Finally, an optimum retrofit solution was formulated with account for the payback period and ease of installation. Results and discussion: The detailed analysis of various energy-efficient retrofit measures as applied to the case study indicates that the most feasible options for retrofit resulting in optimum energy savings with short payback periods include passive architecture measures and equipment upgrades.

Evaluation of the Embodied Energy for Building Materials in Turkey

2013 ◽  
Vol 689 ◽  
pp. 273-277 ◽  
Author(s):  
Saniye Karaman Öztaş ◽  
Cahide Aydın Ipekci
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Total Energy ◽  
Building Materials ◽  
Electrical Energy ◽  
Embodied Energy ◽  
Inventory Analysis ◽  
Total Energy Consumption ◽  
The Earth ◽  
Volatile Organic

Building materials damage to the environment during each stage of their life cycle. An important part of these damages is due to the energy consumption during the process. Many building materials sector like cement, iron, steel, glass etc use high rates of fuel and electrical energy. Greenhouse gases resulting from the use of energy lead to global warming that cause climate change. And acid rain damages living and non- living beings on the earth. In addition, volatile organic compounds and granular particles as a result of combustion of fossil sources enter the human body through the respiratory or digestive systems which lead to serious illnesses. Therefore, responsible use of energy is important for both resource efficiency and reducing environmental impacts. An important part of life cycle energy of building materials is consumed during the production and transportation processes. In this study, it is aimed to investigate initial embodied energy of cement, marble, glass and aluminum sectors in Turkey. The current situation was stated by the method of literature review and inventory analysis of the energy flow to calculate the amount of the total energy consumption of the building materials during these processes was recommended. Thus, it will be possible to compare the amount of total energy consumption in different production plants.

Life Cycle Assessment of Electric Vehicle Power Battery

2016 ◽  
Vol 847 ◽  
pp. 403-410 ◽  
Author(s):  
Qiang Lu ◽  
Peng Fei Wu ◽  
Wan Xia Shen ◽  
Xue Chao Wang ◽  
Bo Zhang ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Energy Consumption ◽  
Total Energy ◽  
Lithium Iron Phosphate ◽  
Iron Phosphate ◽  
Total Energy Consumption ◽  
Nickel Metal ◽  
Material Production ◽  
Nimh Battery

Based on Life cycle assessment (LCA) methodology, this paper analyzes the total energy consumption and greenhouse gas (GHGs), NOx, SOx and PM emissions during material production and battery production processes of nickel-metal hydride battery (NiMH), lithium iron phosphate battery (LFP), lithium cobalt dioxide battery (LCO) and lithium nickel manganese cobalt oxide (NMC) battery, assuming that the batteries have same energy capacity. The results showed that environmental performance of LFP battery was better than the other three, and that of NiMH battery was the worst. The experimental results also showed the total energy consumption of LFP battery was 2.8 times of NiMH battery and GHGs emission was 3.2 times during material production, and the total energy consumption was 7.6 times of NIMH battery and GHGs emission was 6.6 times during battery production

Energy savings potential of new aeration system: Full scale trials

2012 ◽  
Vol 7 (4) ◽  
Author(s):  
A. Lazić ◽  
V. Larsson ◽  
Å. Nordenborg
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Total Energy ◽  
Energy Savings ◽  
Treatment Plant ◽  
Full Scale ◽  
Total Energy Consumption ◽  
Aeration System ◽  
Fine Bubble ◽  
Aeration Control

The objective of this work is to decrease energy consumption of the aeration system at a mid-size conventional wastewater treatment plant in the south of Sweden where aeration consumes 44% of the total energy consumption of the plant. By designing an energy optimised aeration system (with aeration grids, blowers, controlling valves) and then operating it with a new aeration control system (dissolved oxygen cascade control and most open valve logic) one can save energy. The concept has been tested in full scale by comparing two treatment lines: a reference line (consisting of old fine bubble tube diffusers, old lobe blowers, simple DO control) with a test line (consisting of new Sanitaire Silver Series Low Pressure fine bubble diffusers, a new screw blower and the Flygt aeration control system). Energy savings with the new aeration system measured as Aeration Efficiency was 65%. Furthermore, 13% of the total energy consumption of the whole plant, or 21 000 €/year, could be saved when the tested line was operated with the new aeration system.

Sign in / Sign up

Export Citation Format

Share Document