scholarly journals Analysis of CO2 Emissions from Industrial Parks: A Case Study in Ho Chi Minh City, Vietnam

2021 ◽  
Vol 1092 (1) ◽  
pp. 012084
Author(s):  
T LVan ◽  
V T T Ho ◽  
H D T Thanh ◽  
N T Thong ◽  
Q Huynh ◽  
...  
2021 ◽  
Vol 209 ◽  
pp. 105654
Author(s):  
Anh Cao ◽  
Miguel Esteban ◽  
Motoharu Onuki ◽  
Kiet Nguyen ◽  
Danh Thao Nguyen ◽  
...  

2016 ◽  
Vol 25 (1) ◽  
pp. 119-128
Author(s):  
Chao Gong ◽  
Changchun Song ◽  
Xinhou Zhang ◽  
Wenwen Tan ◽  
Tianhua Qiao

2021 ◽  
Author(s):  
Madison Milne-Ives ◽  
John Leyden ◽  
Inocencio Maramba ◽  
Ray Jones ◽  
Arunangsu Chatterjee ◽  
...  

BACKGROUND The NHS cannot keep up with the demand for operations and procedures. Preoperative assessments, which can last 30 minutes to 2 hours, could be conducted online to save patient and clinician time, reducing wait times for operations. MyPreOp is a cloud-based platform where patients can set up an account and complete their preoperative questionnaires. This data is reviewed by a nurse, who determines if they need a subsequent face-to-face appointment. OBJECTIVE The primary objective was to describe the potential impact of MyPreOp® (Ultramed Ltd, Penryn, UK) the number of face-to-face appointments. Secondary objectives were to examine the time spent on preoperative assessments completed using MyPreOp in everyday use in NHS Trusts and user ratings of usability and acceptability. METHODS A case study service evaluation of data collected by the MyPreOp system from two NHS Trusts (Guy’s and St Thomas’ and Royal United Hospitals Bath) and the private BMI Bath Clinic during the four-month period of September to December 2020. MyPreOp is delivered by the hospital conducting the preoperative assessment but is typically completed at home at the patients’ convenience. Participants were adults of any age and health status at the participating hospitals who used MyPreOp to complete a preoperative assessment before a scheduled surgery. The primary outcome was the number of face-to-face appointments avoided by patients who used MyPreOp. Secondary outcomes were the length of time spent by nurses completing preoperative assessments, associated travel-related CO2 emissions, and quantitative user feedback. RESULTS Data from 2,500 participants was included. Half of the patients assessed did not need a further face-to-face appointment and required a median of only 5.3 minutes of nurses’ time. The reduction in appointments was associated with a small saving of CO2e emissions (9.05 tonnes). Patient feedback was generally positive: 80% of respondents rated MyPreOp as easy or very easy to use and 85% thought the overall experience was good or very good. CONCLUSIONS This evaluation demonstrated potential benefits of MyPreOp. However, further research using rigorous scientific methodology and a larger sample of NHS Trusts and users is needed to provide strong evidence of MyPreOp’s efficacy, usability, and cost-effectiveness.


2020 ◽  
Vol 21 (2) ◽  
pp. 225-234
Author(s):  
Ananda Noor Sholichah ◽  
Y Yuniaristanto ◽  
I Wayan Suletra

Location and routing are the main critical problems investigated in a logistic. Location-Routing Problem (LRP) involves determining the location of facilities and vehicle routes to supply customer's demands. Determination of depots as distribution centers is one of the problems in LRP.  In LRP, carbon emissions need to be considered because these problems cause global warming and climate change. In this paper, a new mathematical model for LRP considering CO2 emissions minimization is proposed. This study developed a new  Mixed Integer Linear Programming (MILP)  model for LRP with time windows and considered the environmental impacts.  Finally, a case study was conducted in the province of Central Java, Indonesia. In this case study, there are three depot candidates. The study results indicated that using this method in existing conditions and constraints provides a more optimal solution than the company's actual route. A sensitivity analysis was also carried out in this case study.


2009 ◽  
Vol 12 (9) ◽  
pp. 88-97
Author(s):  
Tuan Ngoc Le

In HCMC, there are 958 factories in 12 industrial parks – export processing zones (IP-EPZ) (2006), 1,011 large factories, 6,202 small and medium factories out of IP-EPZ with 24 various industries. More than 700 factories operate in field of buying and recycling solid waste. Besides, there are 21 licenced and series of unregistered factories operating in field of collecting, transporting, treating, and burning industrial solid waste - hazardous waste (ISW-HW). There is the survey deployed in 24 districts (HCMC). The scope of that inquiry is 278 factories in IP-EPZ, 96 large factories, 1,142 small and medium factories out of IP-EPZ. The quantity of industrial solid waste is 1,044 tons per day with 12 percent of hazardous waste. After analysing the advantages and disadvantages of 05 methods used for predicting the quantity of ISW-HW, according to the ability of collecting data related in HCMC, the research has compared and chosen the best method. The results are: 1,641 tons per day (2010); 3,196 tons per day (2015); 7,318 tons per day (2020). With more and more ISW-HW, doing overall researches in order to establish the effective ISW-HW management measures in HCMC, minimize the negative impacts to environment and public health.


2018 ◽  
Vol 4 (2) ◽  
pp. 82
Author(s):  
B Gimeno ◽  
J. Aranda ◽  
D. Zambrana ◽  
A. Conserva ◽  
P. López ◽  
...  

Resumen En España, donde existen más de 18 millones de hogares según el último censo del Instituto Nacional de Estadística en 2011, alrededor del 8% de la población reside en viviendas de alquiler social. Del parque de viviendas español, más de la mitad de los edificios se construyeron antes de 1980 y alrededor del 35% entre 1981 y 2006, año en que fue implantado el Código Técnico de la Edificación. Asimismo, más del 80% de los certificados energéticos de edificios existentes registrados hasta julio de 2015, obtiene una calificación E o inferior en términos de emisiones de CO2. Para mejorar estos resultados, la Unión Europea tiene como objetivo alcanzar una tasa de rehabilitación de edificios privados del 2,5% anual, mejorando la eficiencia energética y ampliando la vida útil del parque edificatorio. Sin embargo, los CEEE únicamente representan parte de la etapa de uso, dejando atrás otras, como la de producción, cuyo impacto puede representar un cuarto de las emisiones de CO2 del edificio a lo largo de su ciclo de vida. Para desarrollar una rehabilitación óptima, se propone evaluar la sostenibilidad de los proyectos de rehabilitación incluyendo las etapas de producción, construcción, uso y fin de vida y considerando el impacto medioambiental y económico, así como aspectos sociales relativos a las características de la vivienda social. Este artículo analiza los impactos medioambientales de diferentes soluciones de rehabilitación en vivienda social, tomando como caso de estudio un edificio de vivienda social en Zaragoza. El edificio antes de la rehabilitación supone casi 50 kgCO2-eq/m2año, donde el 60% corresponden al consumo eléctrico durante la fase de uso del edificio. En el estudio también se incluye la variable de confort térmico en situaciones de vulnerabilidad energética. Abstract In Spain, where there are more than 18 million households according to the last census of the National Institute of Statistics in 2011, around 8% of the population lives in social rental housing. Of the Spanish housing stock, more than half of the buildings were built before 1980 and around 35% between 1981 and 2006, the year in which the Technical Building Code was implemented. Likewise, more than 80% of the energy certificates of existing buildings registered until July 2015, obtain an E rating or lower in terms of CO2 emissions. To improve these results, the European Union aims to achieve a private buildings rehabilitation rate of 2.5% per year, improving energy efficiency and extending the useful life of the building park. However, CEEEs only represent part of the use stage, leaving behind others, such as production, whose impact can represent a quarter of the building's CO2 emissions throughout its life cycle. To develop an optimal rehabilitation, it is proposed to evaluate the sustainability of the rehabilitation projects including the stages of production, construction, use and end of life and considering the environmental and economic impact, as well as social aspects related to the characteristics of social housing. This article analyzes the environmental impacts of different rehabilitation solutions in social housing, taking as a case study a social housing building in Zaragoza. The building before the rehabilitation supposes almost 50 kgCO2-eq / m2año, where 60% correspond to the electrical consumption during the phase of use of the building. The study also includes the thermal comfort variable in situations of energy vulnerability.


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