scholarly journals Analysis of Greenhouse Gas Emission From Aircrafts and Ground Service Equipment at Tribhuvan International Airport of Nepal

2021 ◽  
Vol 6 ◽  
pp. 111-122
Author(s):  
Ramesh Acharya ◽  
Nawaraj Bhattarai
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas Emission ◽  
Carbon Dioxide Emission ◽  
Civil Aviation ◽  
Gas Emission ◽  
International Airport ◽  
Consumption Data ◽  
Reduction Measure ◽  
Co Reduction ◽  
Co Emission

This paper highlights the trend of carbon dioxide emission and its reduction measure at Tribhuvan International Airport, which is the only international airport of Nepal. The landing and take-off (LTO) cycle of three-year (2016 to 2018) data were gathered from Civil Aviation Authority of Nepal (CAAN) for all types of aircrafts and fuel consumption data of each ground service equipment (GSE) were collected from Nepal Airlines Corporation (NAC).  With the help of LTO emission factors published by different institutions and collected data, the emission was calculated and overall (international, domestic, helicopters and GSE) CO₂ emission in the year 2016, 2017 and 2018 was found to be 56.55, 65.66 and 71.89 Kilotonnes respectively. Upon validation of calculated emission the discrepancy of 2.59% was found. The CO₂ emission was forecasted up-to 2030 considering two scenarios namely, time series analysis and regression analysis. Lastly, for the CO₂ reduction from GSE the scenario; Electrical GSE and Construction of Aerobridge was studied and from which it was found that the CO₂ will be reduced by 80% if implemented.

scholarly journals Effect of Greenhouse Gas Emission on Solar PV Performance

2020 ◽  
Vol 9 (3) ◽  
pp. 3642-3647
Keyword(s):  
Carbon Dioxide ◽  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Energy Production ◽  
Greenhouse Gas Emission ◽  
Carbon Dioxide Emission ◽  
Energy Sector ◽  
Solar Pv ◽  
Gas Emission

Renewable energy is a cleanest and reliable energy sector to the changing climate condition. This changing world needs a quick combination of renewable energy in the energy matrix of each region in such a climate, and it is a sustainable solution. So this study gives a brief idea of how solar photovoltaic (PV) technology performs with changing climatic condition. This system is reliable technology integration in the energy market of India and its statuses among all other renewable sources. To improve energy security and decrease the carbon dioxide emission in an atmosphere, renewable energy technologies have raised a rapid deployment over the past few years. Most of the countries are now changing the ways for economic growth through the development of the renewable energy sector. It is better to Investment in growth of the renewable energy sector because to increase income, to create the job, contribute to industrials development and improve trade balance it is necessary to generate more renewable energy source. The growth in population is directly proportional to energy demand, and again it is directly proportional to energy production due to which the more in carbon dioxide emission. In increasing demand for energy, it is indispensable to produce a renewable energy source, especially in India. Because nowadays solar PV is an excellent source of energy production .so here some study has done about the performance of solar PV on greenhouse gas emission.

scholarly journals Incorporation of Innovative Mechanisms for Greenhouse Gas Emission Reduction

2021 ◽  
Vol 8 (3) ◽  
pp. 118-124
Author(s):  
Krishna Anand ◽  
Sundara Raman
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gases ◽  
Greenhouse Gas ◽  
Greenhouse Gas Emission ◽  
Carbon Dioxide Emission ◽  
Ghg Emissions ◽  
Human Beings ◽  
Gas Emission ◽  
Research Findings ◽  
Greenhouse Gas Emission Reduction

Spiraling continued increase in Emission of Green House Gases [GHG] play a significant role in impacting the environment and also human beings at large. Although recent studies have concentrated to an extent on developing schemes for reduction of Carbon dioxide emission and have identified methodologies in implementing the same, sufficient amount of studies have not been done on other greenhouse gases which also have adverse global impact as Carbon dioxide. Applications where methane and, nitrous oxide are emitted in abundance have continued to flourish. This work focuses on select methodologies in reducing all types of Greenhouse gases giving a larger amount of importance to ones which are more severe and the ones that cause depletion of ozone layer. Research findings have shown that majority of greenhouse gas emissions occur as a result of industry advances. Hence, as time is running out, there is an urgent need in identifying ways to mitigate these GHG emissions, thereby contributing to cleaner and healthier environment.

scholarly journals Greenhouse Gas Emission of Broiler Chicken Production in Malaysia using Life Cycle Assessment Guidelines: A Case Study

2018 ◽  
Vol 3 (2) ◽  
pp. 87-97
Author(s):  
Syakira Afiqah Suffian ◽  
Atiah Abdullah Sidek ◽  
Toshihiko Matsuto ◽  
Muataz Hazza Al Hazza ◽  
Hazlina Md Yusof ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Greenhouse Gas ◽  
Broiler Chicken ◽  
Greenhouse Gas Emission ◽  
Gas Emission ◽  
Chicken Farm

The aim of this research was to evaluate the level of greenhouse gas emission from broiler chicken farming industry in Malaysia. In order to achieve that, Life Cycle Assessment method was chosen as a framework to complete the task. A case study was conducted at a broiler chicken farm to gather the data and information related to the broiler chicken production. Cradle-to-gate assessment including distribution stage was conducted based on the ISO14040/1044 guidelines. Inventory data for this case study was gathered in collaboration with one of the selected case study broiler chicken farm company. Greenhouse gas emission that consists of several most affected gases such as carbon dioxide, methane and nitrous oxide was studied. Result shows that the highest carbon dioxide emission came from manure, which accounted for 1,665,342 kg CO2 equivalent per total broilers while the highest methane emission came from feed, which accounted for 126,207.84 g CH4 equivalent per total broilers. For nitrous oxide emission, the highest values came from bedding which accounted for 20,316.87 g N2O equivalent per total broilers in the commercial modern broiler chicken farm. In this case study, it can be concluded that manure gives the most prominent effect to the greenhouse gas emission followed by feed and bedding materials. 

scholarly journals URBAN METABOLISM AND TRANSPORTATION ASSESSMENT OF KUALA LUMPUR, MALAYSIA

2020 ◽  
Vol 18 (13) ◽  
Author(s):  
Ahmad Afiq Shahidan ◽  
Farah Ayuni Shafie
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gas ◽  
Greenhouse Gas Emission ◽  
Ambient Air ◽  
Kuala Lumpur ◽  
Input Output ◽  
Gas Emission ◽  
Output Analysis ◽  
Input Output Analysis ◽  
The City

Carbon dioxide, a major greenhouse gas has become an indicator in global warming and climate change. Meanwhile, cities are a medium whereby the source of carbon dioxide is released due to the urbanization and transportation sector. This situation leads to unpredictable impact to the environmental, social and economic condition of the city. Kuala Lumpur is a capital city that experiences rapid growth and was chosen for input-output analysis while Bukit Bintang road and Tunku Abdul Rahman road were chosen for ambient air monitoring due to traffic congestion problems in the city centre. The ambient air quality monitoring was measured on Saturday, Sunday and Monday for 8 hours. The sampling started at 7.00 a.m until 3.00 p.m. with a 5-minute log interval. The study found that carbon dioxide emission from both roads in Kuala Lumpur contributed to 376 ppm of carbon dioxide showing that transportation was a massive source of greenhouse gas emission in the city. Meanwhile, the input-output analysis in Kuala Lumpur showed a significant increase between 2010 and 2016 where electricity consumption, food consumption input, water consumption, gas emission and wastewater output rise due to urbanization and increasing population in the city. In contrast, the enforcement of mandatory waste management by the government has resulted in the decrease of solid waste output in Kuala Lumpur. The greenhouse gas released output in terms of Global Warming Potential from the input-output analysis was 5.88 MMtCO2eq. The study showed that the impact of urbanisation such as ambient air pollution is closely related to energy consumption and greenhouse gas emission.

GREENHOUSE GAS EMISSION FROM COMBUSTION OF ASSOCIATED PETROLEUM GAS IN RUSSIA

2021 ◽  
pp. 54-61
Author(s):  
N. V. Popov ◽  
◽  
I. L. Govor ◽  
M. L. Gitarskii ◽  
◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Greenhouse Gases ◽  
Greenhouse Gas ◽  
Greenhouse Gas Emission ◽  
Component Composition ◽  
Emission Factors ◽  
Gas Emission ◽  
Associated Petroleum Gas ◽  
Carbon Dioxide Co2

The average weighted long-term component composition of associated petroleum gas burned at the fields in Russia is obtained, where the volume fractions of carbon dioxide (CO2) and methane (CH4) make up 0.8 and 66.4%, respectively. Based on it, the national emission factors of greenhouse gases from the flaring of associated petroleum gas are developed: the values are equal to 2.76 103 t CO2 and 0.0155 103 t CH4 per 1 106 m3 of the gas burnt. The calculations based on the emission factors led to the 37% increase in total equivalent emission of CO2 and CH4 as compared to the calculations based on the IPCC emission factors. The use of the national emission factors increases the reliability of the estimates of greenhouse gas emissions and the evaluation of their impact on climate.

Polysulfone biomimetic membrane for CO2 capture

2018 ◽  
Vol 11 (05) ◽  
pp. 1850046 ◽  
Author(s):  
Adrianna Nogalska ◽  
Mario Ammendola ◽  
Carla A. M. Portugal ◽  
Bartosz Tylkowski ◽  
Joao G. Crespo ◽  
...  
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Greenhouse Gas Emission ◽  
Physical Adsorption ◽  
Covalent Binding ◽  
Hydration Reaction ◽  
Gas Emission ◽  
Polysulfone Membrane ◽  
Biomimetic Membrane ◽  
Physical And Chemical

Constant increase of greenhouse gas emission by human activity causes a climate change, with carbon dioxide as the main contributor. In nature, CO2 fixation takes place in leaves where carbonic anhydrase (CA) catalyzes the hydration reaction. Inspired by this photosynthesis process, we come with a polysulfone biomimetic membrane containing CA for CO2 capture. Two immobilization approaches were investigated: physical and chemical. For this reason, we prepared a blank polysulfone membrane to physically adsorb the enzyme on its surface, and a membrane with dispersed ferritic nanoparticles -NH2 terminated used for covalent binding of the enzyme. The scope of this study is to evaluate the influence of the immobilization type on the enzyme activity. The obtained nanoparticles and membranes were characterized by TEM, WAXD, EDX, SEM and CA, respectively. The attached amount was determined by ICP, whereas the activity and CO2 solubility were estimated experimentally. Studies showed that the enzyme is attached more efficiently by the physical adsorption. Nevertheless, covalent binding favors its activity by stabilizing the structure.

scholarly journals BEBAN EMISI AKTIVITAS LTO PESAWAT UDARA DI BANDAR UDARA INTERNASIONAL I GUSTI NGURAH RAI BALI

2015 ◽  
Vol 9 (1) ◽  
pp. 72 ◽  
Author(s):  
Yohanis Umbu Kaleka ◽  
I Wayan Budiarsa Suyasa ◽  
M.S. Mahendra
Keyword(s):  
Ambient Air ◽  
Quality Standard ◽  
Activity Level ◽  
The Other ◽  
Air Concentration ◽  
Gas Emission ◽  
International Airport ◽  
Statistical Analysis Method ◽  
Emission Activity ◽  
Co Emission

I Gusti Ngurah Rai Bali International Airport is the second highest airport in activity level in Indonesia. Flight activity in this airport increases every year, with an increase of 20% from 2011 until the end of 2012. The research aimed to identify how much the LTO (Landing-Take-Off) emission activity in I Gusti Ngurah Rai Bali International Airport. The purpose of this research was to identify how much the emission is and the effect of LTO activities towards the ambient air condition of CO and NOx around the airport. Three measurement points and three days recent flight were applied to understand the emission spreading characteristic in every LTO phases. The three phases of LTO which are consisted of take-off phase, taxi in phase and landing phase, were the main focus of this research. The three recent flights were on Monday 5 of May, on Wednesday 7 of May and on Saturday 10 of May in 2014. Regression bifilar linear statistical analysis method was employed to identify the effect and how big the CO and NOx emission contribution towards the ambient air quality. The results of this research showed that the emission of aircraft activity in LTO phases was effected by the ambient air concentration of CO and NOx. It was proved with the result from F test simultaneous with significant level average 0,033 < 0,005 and with r value that exists between 0,77 – 0,97 with mean contribution was 79,1%. Take-off phase was the phase that produced the biggest NOx gas emission compared to the other phases. When the aircraft did the take-off phase, the thrust was used reached 100%, the purpose was to produce the big energy. The combustion that happened in take-off phase in aircraft machine classified in perfect combustion, also this thing effected the phase to produce the smallest CO gas emission compared with the other phases. Taxi in phase was a phase that produced the biggest CO emission between the two other phases, it was happened because the thrust needed just 7% only so the combustion in aircraft machine classified in imperfect combustion and it was effected the CO emission was increasingly while the landing phase was the phase that produced the smallest CO and NOx gas emission compared to the other phases. Measurement results of the CO and NOx concentration in every point in three days recent flight was still under the quality standard that has been settled appropriate in Government Act number 41 year 1999..

scholarly journals Evaluating Greenhouse Gas Emissions in Promising Tillage and Manure Application Practices at Borderview Farm

2017 ◽  
Author(s):  
Carol Adair ◽  
Heather Darby ◽  
Tyler Goeschel ◽  
Lindsay Barbieri ◽  
Alissa White
Keyword(s):  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Greenhouse Gas ◽  
Research Team ◽  
Greenhouse Gas Emission ◽  
Nitrous Oxide Emissions ◽  
Gas Emission ◽  
Manure Application ◽  
Measuring Device ◽  
No Till

A research team at UVM, led by Dr. Carol Adair and Dr. Heather Darby, is evaluating the benefits and drawbacks of four different tillage approaches (conventional, strip, vertical, and no till) and two different methods of manure application (broadcast and injection). The goal is to determine the practices best suited for reducing greenhouse gas emission, improving carbon storage and limiting nitrogen losses. The team measures carbon dioxide and nitrous oxide emissions from the treatments every two weeks or more frequently after events (large rainfall, manure application) using a measuring device called photoacoustic multigas monitor.

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