ผลงานตีพิมพ์ทั้งหมด

Crushed Rock Geopolymer as a Future Road Construction Material: An Evaluation on Strength Performance and Compaction Characteristics

Sararat Kwunjai, Peerapong Jitsangiam, Teewara Suwan, Damrongsak Rinchumphu, Hemwadee Thongchua, Prinya Chindaprasirt, Sate Sampattagul

Key engineering materials · 2020

To be more sustainable in the road construction industry, the rock-based geopolymer concept should be applied with an aim to create a geopolymer-based road structural layer. The research program studied on the geopolymer for road construction was newly established at Chiang Mai University, Thailand. This study concentrated in a preliminarily evaluation of strength performance and compaction characteristics of crushed rock-based geopolymer (CR-GP) to partially or totally replace the usage of ordinary Portland cement (OPC) as a road stabilizing agent. The standard crushed rock (CR), complying with the standard of road base materials, was obtained from a real construction field. The experiment on CR gradation, compaction and compressive strength were carried out. The results showed that CR of a finer grading curve with higher surface areas tended to better react with alkaline activators, resulting in relatively high compressive strength. The mechanical modification with compaction is one of the simplest methods for strength improvement. It found that higher compactive efforts (the modified compaction), higher densification than that of the standard compaction, corresponding to the compaction theory of soil mechanics. CR-GP having an ideal (reconstituted) grading curve achieved higher compressive strength than that of the standard grading one of a well-graded pattern. Overall, it could be concluded CR-GP has intrinsic compaction characteristics of which at its optimum point of compaction, CR-GP could address the minimum requirement for road standard in terms of compressive strength, by which it could be used as an alternative material in replacing the consumption of OPC.

GHG evaluation and mitigation planning for low carbon city case study: Dan Sai Municipality

Netchanakan Sununta, Ratchayuda Kongboon, Sate Sampattagul

Journal of Cleaner Production · 2019

Life Cycle-GHG emissions of molasses-based Ethanol in Thailand based on Input-output model

Eakkaporn Nawapanan, Shabbir H. Gheewala, Sate Sampattagul

Transylvanian Review · 2018

The severely of environmental impact issue of world is global warming can lead to seriously climate change, natural resources or emerging disease. Energy industry sector is associated with emissions of global warming due to the world’s overall energy consumption is increasing dramatically, the alternative fuel from plants has been promoted to substitute fossil fuel. Thailand’s agricultural products can be processed into ethanol to produce an alternative energy especially sugarcane and molasses. Therefore, when we consider with powerful of life cycle assessment (LCA) to evaluate the environmental whole life cycle process. It can be applied with the input-output analysis in term of a physical unit, we call physical input-output model to evaluate environmental impacts. Thus, the aim of this study is to create the physical input-output model in order to evaluate the life cycle GHG emissions of molasses-based ethanol in Thailand. Following the concept, the total GHG emissions by ethanol production including direct and indirect emissions, amounted to 420 MtonCO 2 -eq/yr. More than 70 % of GHG emissions arise from ethanol production. Meanwhile, the emissions intensities of life cycle GHG emissions are 0.66 kg CO 2 -eq/Liter of ethanol, was from cultivation; 0.15 kg CO 2 -eq/Liter of ethanol, sugar production; 0.04 kg CO 2 -eq/Liter of ethanol and ethanol production 0.47 kg CO 2 -eq/Liter of ethanol. From the finding of this study, it is extended to continue study to evaluate in other green indicators such as environmentally adjust indicator and possible reduction strategies of the ethanol industry with green value added or green GDP in the future.

Comparison of Coal-fired and Natural Gasfired Power Plants as Economically Viable and Ecologically Sustainable Power Generation Systems

Sate Sampattagul, Seizo Kato, Tanongkiat Kiatsiriroat, Naoki Maruyama, Akira Nishimura

energyo · 2018

To achieve a sustainable power generation industry it is necessary to study the environmental impacts and economic costs of all aspects of a power generation plants’ lifecycle - from mining to electricity distribution, and, ultimately, decommission (from cradle to grave). One key component in improving and maintaining quality of life for consumers is the application of the Green Productivity Index (GPI) in order to evaluate the related factors of Life Cycle Assessment (LCA) and Life Cycle Costing (LCC). The goal of this research is to appraise the efficacy of decision-making tools in accurately assessing the potential results of ‘green’ improvements to coal-fired and natural gas-fired power plants in both ecological and economic terms. The recently developed Numerical Eco-load Total Standardization (LCA-NETS) evaluates environmental impacts by identifying and quantifying input energy and output waste released to the environment throughout the life cycle of a power plant. Environmental impacts caused by global and regional environmental issues are numerically calculated in the units of NETS. Environmental assessment tools such as LCA, LCC and GPI can be used to improve the ‘environmental friendliness’ of electricity generation by demonstrating the future sustainability of ‘green’ power generation plants and their contribution to the quality of life of consumer.

Multi-criteria optimization for a biomass gasification-integrated combined cooling, heating, and power system based on life-cycle assessment

C.Y. Li, Jingyi Wu, C. Chavasint, Sate Sampattagul, Tanongkiat Kiatsiriroat, R.Z. Wang

Energy Conversion and Management · 2018

Energy and environmental impact analysis of rice cultivation and straw management in northern Thailand

Sanwasan Yodkhum, Sate Sampattagul, Shabbir H. Gheewala

Environmental Science and Pollution Research · 2018

City Carbon Footprint Evaluation and Forecasting Case Study: Dan Sai Municipality

Netchanakan Sununta, Surat Sedpho, Sate Sampattagul

DOAJ (DOAJ: Directory of Open Access Journals) · 2018

In this research, City Carbon Footprint (CCF) of Dan Sai municipality was evaluated according to the Global Protocol for Community-scale Greenhouse Gas Emission Inventories (GPC) guideline. Related activity data in 2015 were collected and analyzed which presented into 3 scopes (Scope1, 2, 3). As the results, the total CCF of Dan Sai Municipality is 8,528.04 tCO2eq which contributed from scope 1, scope 2 and scope 3 of 5,524 tCO2eq, 2,164 tCO2eq, 1,140 tCO2eq, respectively. Fossil fuel combustion from industrial sub-sector in scope 1 showed the greatest contribution of 40% of the total, followed by electricity consumption in scope 2, solid waste treatment in scope 1 accounting for 25% and 13%, respectively. The data of CCF in 2015 was used as baseline (Business as Usual: BAU) in order to predict city emissions in 2030 using mathematical forecasting model. The result indicated that CCF of Dan Sai can be reach up to 11,662.39 t CO2eq (27%). Consequently, applying mitigation options to reduce the emission for Dan Sai has been proposed. It was found that implementation of reduction projects including installation of solar rooftop, composting organic waste, producing RDF from waste and convert waste to energy by using RDF hybrid ORC could reduce CCF accounting for 20%, 0.53%, 1% and 3%, respectively. This study can provide benefits and offer better solutions for maximizing the potential of low carbon city and minimizing the climate change problem issues for municipality in the near future.

Field evaluation of an electrostatic PM2.5 mass monitor

Panich Intra, Artit Yawootti, Sate Sampattagul

DOAJ (DOAJ: Directory of Open Access Journals) · 2018

An electrostatic PM2.5 mass monitor (EPMM) used for wireless continuous airborne particulate matter monitoring was developed and field evaluated in our previous work. Developed electrostatic PM2.5 mass monitor was consisted of a 2.5 impactor, a particle charger, a Faraday cup electrometer, a flow system, a high voltage power supply, and data acquisition, processing, and wireless monitor system. The monitoring data of the EPMM was connected to the internet through a GSM connection to a public cellular network. In this study, the EPMM performance was simultaneously evaluated and compared with a commercially available Thermo Scientific Model 5014i Beta Continuous Particulate Monitor for PM2.5 measurements at ambient conditions. The monitoring station was located in Yupparaj Wittayalai School, Si Phum, Mueang, Chiang Mai, Thailand, during October 15 to November 5, 2015. The two different instruments showed good results that were highly correlated. It was found that the comparison between the EPMM and the Thermo Scientific Model 5014i Beta data values were R2 of 0.8230 and 0.9811, and a slope of 1.0231 and 0.8802 for 1-hour and 24-hours, respectively. Particularly, it was showed that the EPMM proved its advantages in measuring and detecting PM2.5 particulate air pollution for mass concentrations in the range from 0 to 500 µg/m3 and with greater than 500 hours of operation.

Life cycle GHG evaluation of organic rice production in northern Thailand

Sanwasan Yodkhum, Shabbir H. Gheewala, Sate Sampattagul

Journal of Environmental Management · 2017

Life cycle greenhouse gas evaluation of organic rankine cycle using refuse-derived fuel from municipal solid waste

Netchanakan Sununta, Surat Sedpho, Shabbir H. Gheewala, Sate Sampattagul

Journal of Renewable and Sustainable Energy · 2017

In Thailand, the rise in population and economic growth have caused waste generation to increase rapidly, leading to increases in greenhouse gases (GHGs) being released to the atmosphere from waste landfills. Application of waste-to-energy technology to produce electricity can reduce waste accumulation in landfills in addition to lessening the GHG emissions. This study aimed to evaluate life cycle GHG emissions from application of organic Rankine cycle (ORC) as waste-to-energy technology using refuse-derived fuel (RDF), which is produced from municipal solid waste, according to the life cycle assessment approach. The functional unit is defined as 1 kWh. The results indicate that the GHG emissions of 1 kWh of power generated from a RDF hybrid with an ORC power generation system are mostly contributed from RDF combustion in the operation stage, which accounts for 77% of the total. The RDF hybrid ORC shows fewer GHG emissions than the existing combustion-based power generation in Thailand, except for natural gas with the combined-cycle technology. The RDF hybrid ORC power generation can reduce 51.47% of GHG emissions when compared with an open dump, and 34.31% when compared with a landfill. The RDF hybrid ORC was also demonstrated as an environmentally friendly system that can be considered as a source of power generation in power planning in the future.