Using behavioural data to assess the environmental impact of electricity consumption of alternate television service distribution platforms

2021 ◽  
Vol 91 ◽  
pp. 106661
Author(s):  
Daniel Schien ◽  
Paul Shabajee ◽  
Jigna Chandaria ◽  
Dan Williams ◽  
Chris Preist
2020 ◽  
Author(s):  
Felipe Przysiada† ◽  
Diego Merks ◽  
Eduardo Silva ◽  
Alessandro Brawerman

The cost of electricity in Brazilian homes is increasingly high. This project consists of bringing a complete and easily accessible solution aiming to benefit the economy, in a much broader way, both for the end user and for the electricity generating system, which today has difficulty in meeting demand, as well as it provides a reduction in the environmental impact caused by the constant expansion of hydroelectric plants and other sources of energy. The use of this system, the Electricity Consumption Monitoring System, allows the user to have control of each equipment installed in the premises. The equipment in monitored by a device designed and built in this project. From these monitoring devices, which perform periodic measurements, it is possible to make a daily, weekly or monthly survey of the consumption of each equipment in the residence, sending alert messages, for excessive energy consumption, thus defining a user profile and even creating limitations for monthly spending. With this, the user will have the necessary resources to manage their energy consumption over the days, without having surprises at the end of the month.


Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1740 ◽  
Author(s):  
Ana Elduque ◽  
Daniel Elduque ◽  
Carmelo Pina ◽  
Isabel Clavería ◽  
Carlos Javierre

Polymer injection-molding is one of the most used manufacturing processes for the production of plastic products. Its electricity consumption highly influences its cost as well as its environmental impact. Reducing these factors is one of the challenges that material science and production engineering face today. However, there is currently a lack of data regarding electricity consumption values for injection-molding, which leads to significant errors due to the inherent high variability of injection-molding and its configurations. In this paper, an empirical model is proposed to better estimate the electricity consumption and the environmental impact of the injection-molding process. This empirical model was created after measuring the electricity consumption of a wide range of parts. It provides a method to estimate both electricity consumption and environmental impact, taking into account characteristics of both the molded parts and the molding machine. A case study of an induction cooktop housing is presented, showing adequate accuracy of the empirical model and the importance of proper machine selection to reduce cost, electricity consumption, and environmental impact.


2020 ◽  
Vol 12 (11) ◽  
pp. 4604
Author(s):  
Jan Matuštík ◽  
Vladimír Kočí

Electronic shopping is getting more and more popular, and it is not only clothes and electronics that people buy online, but groceries and household products too. Based on real-life data from a major cosmetics and household products retailer in the Czech Republic, this study set to assess the life cycle environmental impact of parcel delivery. Two archetype parcels containing common household and hygiene products were designed and packed in two distinct ways, and the environmental impact was quantified using the Life Cycle Assessment method. It showed that it is environmentally beneficial to use plastic cushions to insulate the goods instead of paper. However, the most important process contributing to the environmental burden was found to be electricity consumption in the logistics center. Hence, the importance of energy efficiency and efficient space utilization was demonstrated on alternative scenarios. Since the cardboard box the goods are packed in turned out to be another important contributor, an alternative scenario was designed where a reusable plastic crate was used instead. Even though the scenario was based on several simplistic assumptions, it showed a clear potential to be environmentally beneficial. In the study, contribution of other processes was scrutinized, as well as sensitivity to variation of parameters, e.g. transportation distances. The main scientific contribution of this work is to show the importance of logistics and distribution of products to end customers in the rapidly developing field of electronic retail of household products.


2020 ◽  
Author(s):  
Austin Anderson ◽  
Selso Gallegos ◽  
Behnaz Rezaie ◽  
Fardad Azarmi

Additive manufacturing (AM), also known as 3D printing is a relatively new concept and promising technology for industrial production. It is important to investigate the environmental impact of the AM process in light of the critical situation of the Earth. The elimination of some costly prefabrication processes such as molding or post-fabrication stages such as machining and welding required in traditional manufacturing methods favor the AM process and provide great economic advantages. Furthermore, the reduction of manufacturing steps contributes to environmental protection through fewer operations, less material, and energy consumption, and reduced transportation. This study is a preliminary work for analyses of environmental impact and life cycle of some well-known AM technologies for manufacturing metallic parts and components. As a case study, fabrication of a pump impeller is simulated through a well-known metal production AM technology and a conventional technology such as a casting process for direct comparison. Life Cycle Analysis (LCA) is applied to measure the environmental impact in five different stages of pump impeller lifetime with the two different fabrication processes. AM compared to casting has an environmental impact reduction of 15%, 20%, 65%, 20%, and 10% respectively in Global Warming Potential (GWP), Acidifications Potential (AP), Water Aquatic Eco-toxicity Potential (FAETP), Human Toxicity Potential (HTP), and Stratospheric Ozone Depletion (ODP). In the pre-manufacturing stage, the AM process has a higher impact on the environment in comparison with the casting process due to intense electricity consumption. Using hydroelectricity and renewable energy electricity mitigates the environmental impact of the AM process in pre-manufacturing and manufacturing stages as temporary until the advancement of AM technology for consuming less energy. Finally, a plan for future research to enhance the environmental sustainability of the AM process is proposed.


Processes ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 206 ◽  
Author(s):  
Silvana Revollar ◽  
Montse Meneses ◽  
Ramón Vilanova ◽  
Pastora Vega ◽  
Mario Francisco

In this work a comprehensive analysis of the environmental impact of the operation of a wastewater treatment plant (WWTP) using different control strategies is carried out considering the dynamic evolution of some environmental indicators and average operation costs. The selected strategies are PI (proportional integral) control schemes such as dissolved oxygen control in the aerobic zone (DO control), DO control and nitrates control in the anoxic zone (DO + NO control) and regulation of ammonium control at the end of aerobic zone (Cascade SNHSP) commonly used in WWTPs to maintain the conditions that ensure the desired effluent quality in a variable influent scenario. The main novelty of the work is the integration of potential insights into environmental impact from the analysis of dynamic evolution of environmental indicators at different time scales. The consideration of annual, bimonthly and weekly temporal windows to evaluate performance indicators makes it possible to capture seasonal effects of influent disturbances and control actions on environmental costs of wastewater treatment that are unnoticed in the annual-based performance evaluation. Then, in the case of periodic events, it is possible to find solutions to improve operation by the adjustment of the control variables in specific periods of time along the operation horizon. The analysis of the annual average and dynamic profiles (weekly and bimonthly) of environmental indicators showed that ammonium-based control (Cascade SNHSP) produce the best compromise solution between environmental and operation costs compared with DO control and DO + NO control. An alternative control strategy, named SNHSP var Qcarb var, has been defined considering a sequence of changes on ammonium set-point (SNHSP) and carbon dosage (Qcarb) on different temporal windows. It is compared with DO control considering weekly and bimonthly profiles and annual average values leading to the conclusion that both strategies, Cascade SNHSP and SNHSP var Qcarb var, produce an improvement of dynamic and annual average environmental performance and operation costs, but benefits of Cascade SNHSP strategy are associated with reduction of electricity consumption and emissions to water, while SNHSP var Qcarb var strategy reduces electricity consumption, use of chemicals (reducing external carbon dosage) and operation costs.


2020 ◽  
Vol 12 (1) ◽  
pp. 18-23
Author(s):  
B.S. Aliyu ◽  
M.Z. Moyi ◽  
L.Z. Fareed ◽  
H.J. Sule ◽  
A.M. Nazifi ◽  
...  

The Physical environment is being disturbed by numerous problems, including those caused by the constructions activities, such problems impacts on the environment right from the initial stage, operational and to the end of the life span of the built structure. The aim of the study was to suggest the main environmental impacts of construction in Kano state. About twenty six construction impacts were reveals from the past researches. However, all the impact was classified into nine main classes. Data for the study were collected from questionnaires and interviews survey administered to stakeholders of construction industry in Kano State. Data collected were analyzed and ranked using Relative Importance Index (RII), suggesting that they significantly impact on the environment thereby causing environmental degradation. Based on the results resource consumption was ranked highest among the major environmental impacts of constructing in Kano. The highest class, consist raw materials, water, fuel and electricity consumption. The paper concludes with recommendation which includes enforcement of extant rules, regulation and ethical code by government legislative on construction stakeholders, government should formulate and ensuring adequate use of construction design that will suite the environment in Kano. Also, all forms of construction practices should be subjected to an environmental impact assessment to determine the potential impacts and also formulate the ways to overcome it before execution. The study suggest also that, the chair personnel in construction companies should formulate some rules, code of conducts that will ensure good and fair sustainable construction practices in Kano. Keywords: Construction Company, Construction Practices, Environmental Impact, Kano.


2020 ◽  
Vol 76 (3) ◽  
pp. 137-153
Author(s):  
Harnpon Phungrassami ◽  
Phairat Usubharatana

Environmental impacts of fishery production have resulted in increased concern and awareness. Thailand, as one of the largest global fish exporters, faces challenges related to environmental problems caused by fishery processes. Here, the environmental impact of Thai surimi production was estimated based on life cycle assessment (LCA) methodology, focusing specifically on two Thai surimi products made from goatfish and ponyfish caught within the southern region of Thailand. Three impact categories where explored: global warming, acidification and eutrophication. Life cycle impacts were calculated for one kg of product using both mass and economic allocations. Results of this study indicated that goatfish has lower impacts than ponyfish for all the impact categories. Fuel consumption during the fishery phase and electricity consumption during processing were the main parameters leading to most of the considered environmental impacts. The value of Global Warming  Potential(GWP) ranged within 1.3‒3.0 kg CO2eq for goatfish and 2.2‒7.1 kg CO2eq ponyfish depending on the allocation method. The acidification impact of goatfish and ponyfish were revealed at 3.2‒7.3 gSO2eq and 12.7‒39.7 gSO2eq, respectively. The eutrophication of goatfish and ponyfish were 0.7‒1.6 gPO4eq and 2.5‒8.1 gPO4eq, respectively. Sensitivity analysis of fuel consumption, electricity consumption, product yield and allocation method were evaluated.


2017 ◽  
Vol 50 (3) ◽  
pp. 350-372 ◽  
Author(s):  
Oliver Arnold ◽  
Alexandra Kibbe ◽  
Terry Hartig ◽  
Florian G. Kaiser

Do behavioral measures of ecological lifestyles reflect actual environmental impact? Three convenience samples of German adults ( N = 881) completed such a measure, the General Ecological Behavior (GEB) scale. Their household electricity consumption was self-reported (Study 1), assessed by a smart-meter (Study 2), or reported by the power company (Study 3). The latter two studies controlled for income, which can boost consumption just as it opens possibilities for behaving ecologically. Within and across studies, analyses revealed a negative association between self-reported ecological behavior and electricity consumption (−.18 ≤ rs ≤ −.22), even with adjustment for income. Furthermore, customers in a green electricity program reported more ecological engagement and consumed one third less electricity than did regular customers. These results indicate the criterion validity of the GEB scale for a highly practically relevant criterion and encourage the use of generic behavior measures in efforts to understand and foster more ecological lifestyles.


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