Emission factor

The lack of country-specific greenhouse gas (GHG) emission factors vehicles in Vietnam makes the emissions inventory in the transport sector more difficult. This study developed the country-specific GHG emission factor in terms of CO2 equivalent for motorcycles (MCs) in Hanoi to overcome the above impediment.

11p vibecca 01-10-2024 2 0   Download

The main objectives of the study include: i) Assessment of PAHs concentration in dust emitted from chimneys of SSI; ii) Assessment of ratio and composition of PAHs in dust samples; iii) Research on load and emission factor of PAHs from SSI.

11p vibecca 01-10-2024 6 2   Download

Crop management practices in intensive vegetable production can influence nitrous oxide (N2O) emissions from soils. This study quantified seasonal N2O emissions and N2O emission intensities, and investigated the factors driving emissions in different vegetable management practices.

13p vibecca 01-10-2024 3 2   Download

This study measured production efficiency considering environmental factors (environmental efficiency) to assess the sustainability of pig farms in the district. This study used the data envelopment analysis (DEA) model with undesirable output (COD emissions) to measure environmental efficiency in pig production.

12p vibecca 01-10-2024 2 2   Download

This study aims to: (1) quantify the indoor and outdoor BC concentrations in two different high rise apartments in Hanoi; (2) initially evaluate factors influenced BC concentrations at these apartments.

5p viyoko 24-09-2024 1 1   Download

The VECM model estimation results show that in the short term, all three factors, namely GDP per capita, foreign direct investment, and trade openness, have an impact on reducing CO2 emissions in Vietnam. Mean while, the results of the Johansen cointegration analysis show that GDP per capita and foreign direct investment have a negative impact on reducing CO2 emissions in the long run.

21p toduongg 24-08-2024 3 2   Download

The main results and new points of this thesis are: The effective emissivity of the diffuse and isothermal cylindrical - inner - cone cavity has been calculated using the polynomial interpolation technique for the angle factor integrals describing the radiation exchange inside the cavity. The interpolation - calculated results are approximately accurate in comparison with those obtained by the analytical methods. This approach is a rather new in the practice of cavity effective emissivity calculation.

14p xacxuoc4321 08-07-2019 35 4   Download

Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) released from thermal processes of various industries have urgently concerned. Stack gas samples were collected from selected electric arc furnaces (EAFs) in Vietnam in order to investigation of PCDD/F concentration, congener profile and emission factors. U.S EPA method 23 was used following the requirements for isokinetic sampling of stack gas emission.

6p nguyenvanhoangvnu 12-06-2017 42 2   Download