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1
artículo
Publicado 2018
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The purpose of this paper is to estimate the energy savings and greenhouse gas emission reductions from energy rating and disclosure policies in New York City. During the first six year of the policy, the City saw a cumulative energy savings of 10.8% and cumulative GHG reductions of 8.5%. However, these gross changes cannot necessarily be attributed to the benchmarking and transparency policies. In order to estimate the “counterfactual” scenario – what would have happened if the policy was not implemented, we use a combination of Difference-in-Difference Estimation and Propensity Score Matching. Based on this model, we conclude that the disclosure of Energy Star Scores to the public did not have a significant effect on energy savings and GHG emissions reductions for multifamily buildings.
2
artículo
Publicado 2018
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The purpose of this paper is to estimate the energy savings and greenhouse gas emission reductions from energy rating and disclosure policies in New York City. During the first six year of the policy, the City saw a cumulative energy savings of 10.8% and cumulative GHG reductions of 8.5%. However, these gross changes cannot necessarily be attributed to the benchmarking and transparency policies. In order to estimate the “counterfactual” scenario – what would have happened if the policy was not implemented, we use a combination of Difference-in-Difference Estimation and Propensity Score Matching. Based on this model, we conclude that the disclosure of Energy Star Scores to the public did not have a significant effect on energy savings and GHG emissions reductions for multifamily buildings.
3
artículo
Publicado 2011
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This study shows the estimates of emissions from mobile sources in the districts of Chaupimarca, Yanacancha and Simón Bolívar, in the Province and Department of Pasco. The methodology is based on the International IVE Model that estimates atmospheric pollutants based on three components such as: 1) Emission factors, 2) Vehicle activity, and 3) Distribution of the vehicle fleet. It was necessary to collect data from the vehicle fleet in the mentioned area to quantify the components and thus obtain an emissions inventory. The results of the emission of pollutants are as follows: CO is 24 047.31 Kg / day, NOX is 2 309.49 Kg / day, VOC is 1 602.19 Kg / day, SOX is 119.76 Kg / day and PM is 32.81 Kg / day, for a vehicular population of 4,500 units and an average travel magnitude of 527,362 km. In conclusion, mobile sources emit 28.11 MT / day of atmospheric pollutants and CO is considered t...
4
tesis de maestría
Publicado 2023
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La cantidad de residuos sólidos municipales (RSU) generados en la provincia de Lima, capital de Perú, considerada una megaciudad por tener una población de más de 10 millones de habitantes, está aumentando a un ritmo elevado. Lima genera aproximadamente 9 901 toneladas/día de RSU (Municipio de Lima, 2021), y se prevé que aumente con el tiempo debido al crecimiento de la población. Hoy en día este hecho está afectando la infraestructura existente y representa un desafío para los gobiernos locales de Lima, que tienen que disponer sus RSU en otros vertederos fuera de Lima. El estudio investiga las emisiones de metano del relleno sanitario El Zapallal en Lima, Perú, y sugiere posibles estrategias de mitigación para reducir las emisiones de gases de efecto invernadero, destacando el potencial de una reducción del 30% en las emisiones.
5
artículo
In the context of clean technologies is not only important to maximize production , minimize costs, but also not pollute the environment , it is for that reason we must develop basic research leading to mitigate SO2 to prevent air pollution. Direct reduction of sulfides is of interest in the metallurgical field for the base metal , using a desulfurizer agent ( CaO, CaCO3 and Na2CO3) , this being a friendly metal production route. In this paper , we show the results of research in the direct reduction of chalcopyrite with carbon in the presence of lime, as a possibility to produce copper from a sulfide avoiding air pollution. ; Also their effect on the reacted fraction and temperature the reaction rate , reaction time , molar ratios of reactants : the effect of the variables involved in the carbothermic reduction was studied . Besides modeling the reduction kinetics of chalcopyrite descri...
6
artículo
In the context of clean technologies is not only important to maximize production , minimize costs, but also not pollute the environment , it is for that reason we must develop basic research leading to mitigate SO2 to prevent air pollution. Direct reduction of sulfides is of interest in the metallurgical field for the base metal , using a desulfurizer agent ( CaO, CaCO3 and Na2CO3) , this being a friendly metal production route. In this paper , we show the results of research in the direct reduction of chalcopyrite with carbon in the presence of lime, as a possibility to produce copper from a sulfide avoiding air pollution. ; Also their effect on the reacted fraction and temperature the reaction rate , reaction time , molar ratios of reactants : the effect of the variables involved in the carbothermic reduction was studied . Besides modeling the reduction kinetics of chalcopyrite descri...
7
artículo
Publicado 2020
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The carbon footprint of the sale of the fruit and the production beverages and ice creams of aguaje was estimated. The study was carried out in the city of Pucallpa, Callería district, where the products are sold, and in the Túpac Amaru hamlet, Manantay district where the fruits are extracted, which are both located in the province of Coronel Portillo, department of Ucayali. The carbon footprint of all the phases of the commercialization of the fruits, and the production of drinks and aguaje ice creams were studied, for which information on their CO2 emissions was collected through surveys carried out to 46 producers. It was estimated that the carbon footprint of the sale of the aguaje fruit was 0.07031 KgCO2eq for each fruit obtained by felling the palm tree and placed in the retail centers of the city of Pucallpa. Emissions were lower when the fruit was harvested without cutting down...
8
artículo
Publicado 2012
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The Brazil Nut Tree, Bertholettia excelsa, while providing a fruit rich in all kinds of nutrients for human health, contributes to environmental conservation. The temperature and humidity of the environment in which they grow and are harvested, coupled with inadequate management of fruits, at harvest, post harvest, processing and storage; favor fungal infection and the production of derivatives difuranocumarinas, known as the aflatoxins (AFs) B1, B2, G1 and G2 whose identification is derived by the blue and green color emitted from the fluorescence when exposed to UV light. In this paper, it has been evaluated the use of a UV excitation source as part of a system to recognize the fluorescence emitted by the Brazil Nut Tree; making the separation easier and faster from those which are contaminated by FAs. The selection by detecting fluorescent emission depends on the type of detectors and...
9
artículo
Publicado 2012
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The Brazil Nut Tree, Bertholettia excelsa, while providing a fruit rich in all kinds of nutrients for human health, contributes to environmental conservation. The temperature and humidity of the environment in which they grow and are harvested, coupled with inadequate management of fruits, at harvest, post harvest, processing and storage; favor fungal infection and the production of derivatives difuranocumarinas, known as the aflatoxins (AFs) B1, B2, G1 and G2 whose identification is derived by the blue and green color emitted from the fluorescence when exposed to UV light. In this paper, it has been evaluated the use of a UV excitation source as part of a system to recognize the fluorescence emitted by the Brazil Nut Tree; making the separation easier and faster from those which are contaminated by FAs. The selection by detecting fluorescent emission depends on the type of detectors and...
10
artículo
Publicado 2019
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The object of the investigation is to reduce the emission of carbon dioxide (CO ) from the internal combustion engine of the car park of the Huánuco region, for this purpose it was analyzed by type of fuel consumed by terrestrial transport using the methodology of stoichiometry, Quantifying the emission of CO in l / day, and also analyzed the use of natural gas as an energy alternative for land transportation with the same methodology, observing a high feasibility of replacing liquid fuels with environmentally friendly, Mainly by methane and that can be produced by sustainable processes, above all that Peru possesses important proven reserves of natural gas. The study estimates the environmental and economic benefit in four scenarios; The use of natural gas as energy for the internal combustion engine generates a significant reduction of 182.64 t / day of carbon dioxide (CO ) in the lan...
11
tesis de grado
Publicado 2022
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The objective of this study was to identify the challenges that the Central Reserve Bank of Peru has faced with the issuance of a digital currency that can be used as a substitute for cash in retail transactions. The study was carried out by using the hypothetical-deductive method with a basic descriptive approach rather than an experimental one. To estimate the probability of creating the Digital Currency of the Central Bank and the economic variables that explain its challenges and cross- sectional information obtained from the 2020 National Household Survey with the discrete choice model (Logit). According to the research results, i) the possibility of using a digital currency increases by 46.83% if you have a formal job compared to an informal job. ii) If the individual has an internet connection, the probability of using digital currency is 8.54%. iii) If he lives in a rural area, t...
12
artículo
Purpose: The purpose of this study is to investigate the role of natural resources in economic growth by taking evidence from Pakistan. Design/methodology/approach: Total five variables are used in this study, i.e. GDP, population density, water renewable resources, deforestation and the emissions of CO2, based on time series data from 1972 to 2016. The annual data is collected from World Development Indicators, Food and Agriculture Organization and Pakistan Economic Survey. Vector error correction model technique is applied to find out the long-run results. Findings: Results depict that all variables have a negative and significant relationship over the long run at 5% level of significance. It is observed that 1% increase in population accordingly will degrade GDP by 0.334496%. Correspondingly, 1% increase of water renewable resources will degrade GDP by 0.450647%. Findings are aligning...
13
tesis de maestría
Publicado 2021
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El dióxido de carbono (CO2) es el gas de efecto invernadero más importante que produce el calentamiento global. Todavía sabemos poco sobre cómo impactan las diferentes políticas para promover las energías renovables en las emisiones de CO2 de la generación de energía. Este estudio reduce esta brecha mediante el uso de tres metodologías complementarias: la técnica de descomposición de Kaya para identificar los principales impulsores de las emisiones de C02 de la generación de energía, el enfoque de datos de panel para identificar la relación entre la participación de la energía renovable en el parque de generación y la emisión de C02, y el emparejamiento procedimiento para estimar el posible efecto causal entre la emisión de C02 y la política de subastas que promueve las energías renovables en la industria eléctrica. Los resultados muestran que el PIB per cápita es ...
14
artículo
Publicado 2020
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The general objective of this research study is to contribute to partially establishing the Carbon Footprint Baseline for the use of Lighting Systems in the building environments of the Faculty of Environmental Engineering (FIA) of the National University of Engineering (UNI ), in the development of academic, management and support activities. For this purpose, the following specific objectives were established: To identify the sources of indirect GHG emissions, to estimate indirect GHG emissions that come from the generation of electricity from external sources (Scope 2), and to prepare the corresponding GHG inventory report. Universities, and especially University Faculties related to Environmental Engineering, have the relevant responsibility to contribute to environmental sustainability through research, direct actions, and academic training of professionals. This will be of tremendo...
15
artículo
Publicado 2020
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The general objective of this research study is to contribute to partially establishing the Carbon Footprint Baseline for the use of Lighting Systems in the building environments of the Faculty of Environmental Engineering (FIA) of the National University of Engineering (UNI ), in the development of academic, management and support activities. For this purpose, the following specific objectives were established: To identify the sources of indirect GHG emissions, to estimate indirect GHG emissions that come from the generation of electricity from external sources (Scope 2), and to prepare the corresponding GHG inventory report. Universities, and especially University Faculties related to Environmental Engineering, have the relevant responsibility to contribute to environmental sustainability through research, direct actions, and academic training of professionals. This will be of tremendo...
16
artículo
Publicado 2023
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Traditionally, to correct the acidity of soil, lime or agricultural dolomite is used, these conventional liming agents can bring as a secondary effect the decrease in soil organic matter (SOM), the carbon stock and the emission of greenhouse gases (GHG). Alkaline biochar is an alternative due to its stability and ability to obtain a positive carbon balance, improve agricultural soils and generate lower GHG emissions. We evaluated the CO2 emission and the physical and chemical properties of acid soil when amended with biochar, lime, and agricultural dolomite in a greenhouse. versus a control (without amendment). Without cultivation, agricultural lime and biochar had a rapid reaction raising the pH close to 7; biochar increased the content of organic matter (+23%), nitrogen (+20%), available phosphorus (+116%), CEC (+46%) and exchangeable cations. Temporal CO2 emission within 24 hours incr...
17
artículo
Publicado 2023
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Traditionally, to correct the acidity of soil, lime or agricultural dolomite is used, these conventional liming agents can bring as a secondary effect the decrease in soil organic matter (SOM), the carbon stock and the emission of greenhouse gases (GHG). Alkaline biochar is an alternative due to its stability and ability to obtain a positive carbon balance, improve agricultural soils and generate lower GHG emissions. We evaluated the CO2 emission and the physical and chemical properties of acid soil when amended with biochar, lime, and agricultural dolomite in a greenhouse. versus a control (without amendment). Without cultivation, agricultural lime and biochar had a rapid reaction raising the pH close to 7; biochar increased the content of organic matter (+23%), nitrogen (+20%), available phosphorus (+116%), CEC (+46%) and exchangeable cations. Temporal CO2 emission within 24 hours incr...
18
artículo
Publicado 2021
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Purpose. The purpose of this study is to examine the impact of economic growth, trade openness and manufacturing on CO2 emissions in India. Design/methodology/approach. The study employed autoregressive distributive lag (ARDL) bounds test approach and uses CO2 emissions, trade, manufacturing and GDP per capita to examine the relationship using an annual time series data from World Development Indicators during 1971 to 2016. Findings. Results depict that there exists a long-run relationship between CO2 emissions and other variables. Trade openness significantly reduces CO2 emissions, whereas manufacturing and GDP have a significant and positive impact on CO2 in the long run. Research limitations/implications. The findings of the study contribute to the body of knowledge by providing new evidence on the relationship between developmental metrics and the environment. These findings are crit...
19
artículo
Publicado 2016
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The objective of the research was to determine the relationship between the quantity of cattle and methane emissions, in a study period of ten years, allowing to respond to the problem posed regarding the magnitude of CH4 emissions in the province. from Manabi. The study was based on the guides and guidelines issued by the intergovernmental panel on climate change, 2006, using the IPCC 2006 version 2.10 software. The results showed that CH4 emissions are considerably high, 531.68 Gg. CH4, highlighting enteric fermentation emissions, with approximately 50 times more methane than manure management emissions. Likewise, non-dairy cattle are responsible for a higher number of methane emissions compared to dairy cattle, in the case of enteric fermentation, with 287,724Gg. CH4, while for manure management, the highest emissions are generated by dairy cattle, with 7,217 Gg. of CH4. The hypothesi...
20
artículo
Publicado 2016
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The objective of the research was to determine the relationship between the quantity of cattle and methane emissions, in a study period of ten years, allowing to respond to the problem posed regarding the magnitude of CH4 emissions in the province. from Manabi. The study was based on the guides and guidelines issued by the intergovernmental panel on climate change, 2006, using the IPCC 2006 version 2.10 software. The results showed that CH4 emissions are considerably high, 531.68 Gg. CH4, highlighting enteric fermentation emissions, with approximately 50 times more methane than manure management emissions. Likewise, non-dairy cattle are responsible for a higher number of methane emissions compared to dairy cattle, in the case of enteric fermentation, with 287,724Gg. CH4, while for manure management, the highest emissions are generated by dairy cattle, with 7,217 Gg. of CH4. The hypothesi...
