Nakorn Tippayawong

Nakorn Tippayawong
Chiang Mai University | CMU · Department of Mechanical Engineering

ฺBEng, PhD, DIC

About

272
Publications
126,089
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3,566
Citations
Citations since 2017
138 Research Items
2496 Citations
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20172018201920202021202220230100200300400500600
20172018201920202021202220230100200300400500600
Introduction
Dr Nakorn Tippayawong is a full professor, working at the Department of Mechanical Engineering, Chiang Mai University, Thailand. He graduated from Imperial College London, UK. He does research in Biomass thermal conversion, Energy efficiency, Low carbon engineering, and Air pollution control. Current projects include "Biomass pyrolysis", "Bio-oil generation and upgrading", "Biomass pretreatment", "Energy 4.0", "Carbon capture & storage", and "Aerosol monitoring & trapping.

Publications

Publications (272)
Article
Full-text available
Open burning of agricultural residues as a means of disposal causes massive atmospheric air pollution in northern Thailand. Converting this agricultural residual biomass to clean energy can help reduce this problem. They may be utilized as solid fuel for electrical power generation, where cost is one of the major factors affecting long term success...
Article
During co-pyrolysis of biomass with plastic waste, bio-oil yields (BOY) could be either induced or reduced significantly via synergistic effects (SE). However, investigating/ interpreting the SE and BOY in multidimensional domains is complicated and limited. This work applied XGBoost machine-learning and Shapley additive explanation (SHAP) to devel...
Article
Full-text available
Based on a prior demonstration of the high activity of a homogeneous tungstosilicic acid catalyst for the esterification of acetic acid as bio-oil model compound, a further study has been undertaken in an attempt to heterogenize the catalyst. Tungsten oxide was supported on amorphous silica (W/A150) using incipient wetness impregnation and incorpor...
Conference Paper
Full-text available
Thailand is known to have various types of tropical fruits. Fruits are generally produced in large quantities annually. Preservation can add value and extend the shelf life of these fruit products. One of the most popular methods of preservation is the drying process. A solar-powered dryer is widely used in fruit drying because of its low cost in t...
Conference Paper
Sustainable city development concerns various dimensions such as citizen well-being, urban infrastructure, environmental friendliness, accessible transportation, and solid economics. Effective utilization of resources and energy is inevitable if a city wishes to transit towards sustainability. A sustainable city assessment framework is a useful too...
Conference Paper
Corn is one of the main agricultural and economic crops in many countries whose residues after harvesting are generated in huge amounts. These corn residues can potentially be used as a renewable feedstock for the production of fuels, heat, power, and chemicals. For ease of handling and use, the bulk approach, storage, and transport properties of t...
Conference Paper
Thailand's famous Tomyum spices ingredient includes galangal, lemongrass, kaffir lime leaves, and chilies, deriving from economic herbs and plants. After harvesting, they will need to be preserved for subsequent use, usually via drying. This research focused on utilizing a multi-magnetron microwave rotary dryer for processing these ingredients, who...
Conference Paper
Electricity Generating Authority of Thailand is the largest power producer in Thailand, owning and operating plants at 45 sites across the country. With the forthcoming global climate crisis, carbon capture and storage (CCS) technology is necessary for reducing carbon dioxide emissions. In this work, a laboratory-scale, amine-based CO2 absorption a...
Conference Paper
Biochar is a carbon- rich organic material that can be used as solid biofuel as well as soil improvement agent. Developing a carbonization reactor suitable for community use will be important. This work focuses on the design, construction, and test of a moving bed biochar reactor with corn cobs as a sample of agricultural residues. The carbonizatio...
Conference Paper
Apart from rubberwood waste, there are abundant biomass resources from agricultural residues in southern Thailand for fuel utilization, such as rice straws, rice husks, oil palm empty fruit bunches, and other oil palm residues. These locally available agricultural residues may be used as mixed biomass fuel to reduce operating costs in power generat...
Conference Paper
Full-text available
Hemp is becoming one of the high-value economic crops in Thailand and many countries, in which it is cultivated for specific industrial applications, such as seeds, fibers, and medicinal products. After production processing, hemp hurds or residues obtained were approximately 2/3 w/w of starting raw material. They may be used as a renewable materia...
Conference Paper
The objective of this research work was to improve the energy efficiency of a traditional hot air food dryer using the waste heat recovery technique. A crossflow heat exchanger was installed at the exhaust vent that used waste heat from the dryer exhaust air to boost the temperature of the intake air. The amount of the exhaust air at the temperatur...
Conference Paper
Full-text available
Waste to energy technologies is considered a viable solution for global warming's sustainability. Several such systems have been developed to produce power from different waste energy sources. However, the main objective of this study is to identify the amount of waste produced in a typical pharmaceutical industry and thereby categorize the wastes...
Conference Paper
Full-text available
This research presents an analysis of the energy efficiency and economics of a biochar production system. Three biomass types were studied: corncobs, rice husks, and longan husks. They were available in large amounts in the northern region of Thailand. The biochar production process can help solve such problems. The product from the process is carb...
Conference Paper
The objective of this work was to improve the performance of a standard hot air food dryer by adding an infrared heating system. Kaffir lime leaves were used as raw material. The dryer performance in convective mode was compared to a hybrid drying technique of hot air combined with infrared heating in the tests. From the experiments, the addition o...
Conference Paper
Fried foods are popular on restaurant and street food scenes. In northern Thailand, pork skin cracker is one of the most common deep fired snacks. Deep frying of pork skin crackers consumes large amount of energy, especially cooking gas like liquefied petroleum gas (LPG). Energy and LPG consumption in gas powered, food frying is normally regulated...
Conference Paper
Electric vehicle (EV) is increasingly becoming an alternative vehicle of choice to replace an internal combustion engine-powered car. EV concept is clearly linked to sustainable development. Generally, there are four types of EVs: hybrid, plug-in hybrid, battery, and fuel cell EVs. The form of energy source and storage plays a key role for all EVs....
Conference Paper
Lignocellulosic biomass contains more than 60% of cellulose consisting of glucose and fructose that can be converted into synthetic fuel, called Dimethylfuran (DMF). DFM contains high energy density and research octane number, and low water solubility that is more appropriate than ethanol in terms of fuel. Production will start with the dehydration...
Conference Paper
Installations of solar photovoltaic (PV) and collector modules have been increasing significantly in the past ten years and continued to do so in many countries, especially in Southeast Asia. For example, in Thailand, the Electricity Generating Authority of Thailand plans to install more than 2.72 GW of hydro-floating solar hybrid projects, encoura...
Conference Paper
Biochar and wood vinegar are the main useful products from the carbonization process. The slow pyrolysis process is considered appropriate and should be promoted to farmers or community use in various applications, including household charcoal and wood vinegar production. This work aimed to design and construct a thermal reactor suitable for high y...
Conference Paper
Biomass has increasingly become one of the most popular renewable sources of energy in Thailand, especially, agricultural wastes from economic crops. These wastes can be converted to fuel gas with gasification technology and used for firing processes in various industries and electric power production. This work was to investigate producer gas prod...
Conference Paper
Full-text available
This study was about biochar production from agricultural waste by calcination and pyrolysis in a concentric cylindrical kiln. Three biomass types were studied: corn cob, rice husks, and longan peels. The kiln was of 50-L capacity and was externally heated by a 15 kW electric heater. Two heating modes of operation were tested, one with a single hea...
Conference Paper
Full-text available
This research aimed to study the potential of agricultural materials as fuel briquettes and the factors affecting fuel briquette properties. The study's results may be utilized as recommendations for the manufacture of fuel briquettes from agricultural wastes converted to alternative energy. Briquette production can increase the income for farmers...
Conference Paper
Oil palm fronds and corncobs are major agricultural residues in Thailand with high energy content. They can be used as substitutes for fossil fuels in the energy and power industry. Mild pyrolysis or torrefaction can enhance their fuel properties towards coals. The objective of this work was to improve both agricultural residues into torrefied biom...
Conference Paper
Full-text available
This work aimed to study the adsorption of lead and arsenic with biochar made from longan seeds and peels. The longan seeds and peels were pyrolyzed at 300°C for 4 h with a heating rate of 5°C/min. Then, the biochar was dehumidified in the hot air oven at 105°C for 24 h and put in the desiccant jar for 24 h. The solution of 100 ml was prepared usin...
Conference Paper
Biochar is a natural carbon-rich material that when applied to soil, can improve soil fertility and water taking-up capacity. The use of biochar is useful in organic agriculture, indirectly preventing the release of CO2 into the atmosphere. The objective of this work was to produce and analyze the Physico-chemical properties of corncob biochar from...
Article
Full-text available
In this study, the effects of print parameters on the mechanical properties of additively manufactured metallic parts were investigated using a tensile test. The 17-4 PH stainless steel specimens with two print parameters, including infill density and pattern orientation, were fabricated by additive manufacturing (AM) using the bound metal depositi...
Article
Fossil fuels are the primary source of energy for a long period in spite of excessive environmental hazards, such as greenhouse gas emissions. Production of energy and fuel from lignocellulosic biomass has been the goal of the study in pursuit of renewable alternatives to fossil materials. Corncob is common agricultural biomass waste found in many...
Article
Among renewable and sustainable energy resources, biomass plays a vital role. Agricultural residues/wastes, energy crops, and lignocellulosic biomass could potentially be major feedstocks for biorefineries. In Thailand, one of the most interesting energy crops is hybrid giant Juncao grass (GJG) or Pennisetum purpureum × Pennisetum typhoideum. GJG c...
Article
A vaccine storage employing a compact refrigeration module for remote area use was proposed and realized in laboratory setting. The module was based on a passenger car air-conditioner driven by a biodiesel powered small engine. The engine used was of single-cylinder, direct-injection, and compression-ignited type with swept volume of about 0.30 dm³...
Article
Full-text available
Crop yield and its prediction are crucial in agricultural production planning. This study investigates and predicts arabica coffee yield in order to match the market demand, using artificial neural networks (ANN) and multiple linear regression (MLR). Data of six variables, including areas, productivity zones, rainfalls, relative humidity, and minim...
Article
Catalyst characteristics such as specific surface area, porosity and active site play an essential role in catalyst design. Understanding of the characteristic functions in controlling catalyst activity is necessary for considering the catalyst application, especially the Ni-loaded lignite char catalyst, employed in catalytic steam gasification. In...
Article
Full-text available
The successful use (for performance predictions, in previous work) of process modeling and simulation of fast pyrolysis plants has made these techniques imperative in the design and operation of the pyrolysis plant itself. The current work proposes an expansion of pyrolysis simulation in the Aspen Plus(R) model for lignocellulosic biomass, which is...
Article
Full-text available
Hot air and solar drying are among the most popular preservation methods for fresh fruits. Ultrasonic technology could enable a faster dehydration rate at low temperatures, hence, preserving vitamins and nutrients in fruits. In this work, the application of ultrasonic vibration to pineapple drying was investigated. Experiments were conducted in hot...
Article
In this study, the out-of-plane bending behavior of two-dimensional (2D) periodic plates is investigated using finite element (FE) simulations and experiments. The bending performance of 2D periodic plates is investigated through three-point bending tests. The investigations are designed to compare numerical and experimental results of the bending...
Article
A three-dimensional computational fluid dynamics study was employed to investigate the extent of the gas-phase contribution to the oxygen evolution reaction. The model was parametrized via comparison with experimental data. It was concluded from comparing non-isothermal and isothermal models that evaporation likely plays a key role in cell performa...
Article
Biomass is a renewable and sustainable energy resource that can potentially be substituted for fossil fuels, which have a negative impact on the environment including the production of greenhouse gas (GHG) emissions. Forest carbon stocks are also of growing interest with regard to both GHG sequestration and renewable energy supply; fast-growing tre...
Preprint
Full-text available
Crop yield and its prediction are crucial in agriculture production planning. This study investigates and analyzes annual coffee yield prediction in order to match the market demand, using artificial neural networks and multiple linear regression. Data were collected for six variables, including areas, productivity zones, rainfalls, relative humidi...
Article
Full-text available
The hydrothermal refinery is a promising thermochemical upgrading technology for high-moisture biomass and wastes. This work aimed to investigate the effect of chloride and propionate anions on hydrochar from hydrothermal carbonization of corn residues. Initial concentrations of ionic salt liquids used as a hydrothermal medium were within 0.33–1.71...
Article
Torrefaction is a treatment process for converting biomass to high-quality solid fuels. The investigation and interpretation of this process on highly dimensional, non-linear relationships as large datasets are limited. In this work, machine learning (ML) in combination with collaborative game theory (Shapley additive explanation, SHAP) was applied...
Article
This paper compares the operating performance of biomethane with both natural gas and gasoline in a small pickup truck. Three different purity levels were used for the biomethane, with the lowest having an 83% methane concentration. The purpose of this paper is to compare the performance of a biomethane powered vehicle, by measuring its power, torq...
Article
In many counties, hemp is becoming a high-valued economic crop. Post-processing, more than 65% w/w of its starting material becomes waste. Herein, pyrolysis of hemp hurds/residues was investigated under low (10–50 °C/min) and intermediate (100–150 °C/min) heating rates using a discrete distributed activation energy model (DAEM). Thermochemical deco...
Article
Full-text available
Oily sludge is a hazardous waste stream of the oil refineries that requires an effective process and an environment-friendly route to convert and recover valuable products. In this study, the pyrolytic conversion of the wet waste oil sludge was implemented in an autoclave pyrolyser and a thermogravimetric analyser (TGA) at 5 ºC/min, 20 ºC/min, and...
Article
Effects of organic loading rates (OLRs), temperatures and effluent recirculation rates on biogas production from Giant Juncao Grass (GJG) using pilot-scale semi-continuously fed CSTRs were investigated. Thermophilic reactors could be stably operated at OLR up to 5.0 kg VS m⁻³ d⁻¹, while damaged process stability was detected in mesophilic reactors...
Article
Machine learning (ML) approach was applied for the prediction of biocrude yields (BY) and higher heating values (HHV) from hydrothermal liquefaction (HTL) of wet biomass and wastes using 17 input features from feedstock characteristics (biological and elemental properties) and operating conditions. Several novel ML algorithms were evaluated, based...
Article
Full-text available
Gasification of biomass is an industrial process utilized to produce product gas that can be used in electrical power generation with internal combustion engines. However, there remain huge challenges with regards to tar and other pollutants, thus their removal before further use is necessary. Non-thermal plasma method can be considered as a novel...
Article
Full-text available
The effect of the addition of a Cu/Al2O3 catalyst on the product distribution of gas-phase products during torrefaction of pelletized corn residues was investigated at temperatures between 220 and 300 °C. Pelletized corn residues were mechanically mixed with Cu/Al2O3 catalyst pellets. The mixture was then thermally treated in a fixed bed reactor fo...
Article
Full-text available
Sustainable energy from biomass is one of the most promising alternative energy sources and is expected to partially replace fossil fuels. Tobacco industries have normally rid their processing residues by landfilling or incineration, affecting the environment negatively. These residues can be used to either extract high-value chemicals or generate...
Article
Full-text available
Mitigating CO2 emissions is an important clean energy research topic. Post-combustion carbon capture is a well established and vital carbon capture technology for existing fossil-fueled power plants. In this work, monoethanolamine (MEA) based carbon capturing unit was designed using AspenPlus V.10 software for a 300 MWe power unit of Mae Moh power...
Article
In this study, the hydrothermal liquefaction of food waste was investigated for generating bio-oils or biocrudes using a simplified high-throughput reactor. Different operating conditions were parametrically tested for obtaining maximum yield of biocrudes at temperatures from 280 to 340 °C and sample-to-water mixture ratios from 1:3 to 1:7, with 30...
Article
Full-text available
Thailand has great potential to use biomass from agricultural wastes for renewable fuels and energy. However, its current utilization is rather low due largely to the high moisture content and low energetic density of these materials. A simple thermal pretreatment such as torrefaction may be useful in adding value to these solid agricultural wastes...
Article
Full-text available
Application of advanced pyrolysis processes to agricultural waste for liquid production is gaining great attention, especially when it is applied to an economic crop like tobacco. In this work, tobacco residues were pyrolyzed in an ablative reactor under vacuum. The maximum bio-oil yield of 55% w/w was obtained at 600°C with a particle size of 10 m...
Article
Full-text available
Proton exchange membrane fuel cells (PEMFCs) require a gas diffusion layer to aid in fuel transport to the catalyst sites. A microporous layer (MPL) is often added to the GDL to improve liquid saturation inside gas diffusion media. In this work, the lattice Boltzmann method was applied to four GDL samples with the addition of an MPL. Three injectio...
Article
Full-text available
ABSTRACT. Municipal solid waste (MSW) and charcoal can be used as a substitute fuel in a gas engine. In this work, performance of a downdraft gasifier and gas engine system operated on MSW briquette fuel was investigated. Experimental test was carried out on a 62 kW, four-cylinder, naturally aspirated engine coupled to a 20 kW dynamometer. The down...
Article
Full-text available
Fossil fuels are the primary energy source of almost all societies and economies, but it is finite and scarce. The use of non-renewable fossil fuels threatens earth’s environment. At the same time, waste from agricultural and industrial activities is increasing. Most of this waste is discarded or poorly managed, causing many other environmental iss...
Article
Catalytic pyrolysis can enhance the value of corn stover waste (CSW) by converting it into the functionalized carbon-based material. Understanding of the performance of functional groups in the CSW via catalytic pyrolysis, including catalyst transformation, is essential for the productive utilization of biomass waste. In this research, the changes...
Article
Full-text available
Fast pyrolysis of biomass is a potential method for the production of bio-oils as a renewable liquid fuel. Bio-oils contain a large number of organic compounds, particularly carboxylic acids, which cause corrosiveness and instability that are troublesome for storage and for the transportation of fuel. Upgrading is an important process to transform...
Article
Full-text available
In this study, pitched-blade, contra-rotating impeller, baffle-free tank with opposing inward flow is optimized using various designs of mixers derived from the Taguchi method. Mixing efficiency and torque are used to find the optimal design for the different specific gravities of solid particles employing in both experiments and CFD simulations. T...
Article
Hydropower is one of the most significant renewable energy resources, especially for mountainous countries like Laos PDR. Expansion and development of many hydropower projects in the country have presented a challenge to the operation of multiple reservoir system. Nam Ngum river was the focus of this work, where there are two or more cascading rese...
Article
Rubberwood biomass is widely available in the southern region of Thailand and it has high potential for biofuel applications. Applications of this biomass still have some limitations, however, such as low energy properties and high biological decomposition. Therefore, the aim of this study was to enhance the fuel properties of rubberwood biomass by...
Article
Ionic liquid solvents (ILSs) have been effectively utilized in biomass pretreatment to produce cellulose-rich materials (CRMs). Predicting CRM properties and evaluating multi-dimensional relationships in this system are necessary but complicated. In this work, machine learning algorithms were applied to predict CRM properties in terms of cellulose...
Article
Full-text available
Biomass torrefaction is a simple and appropriate thermo-chemical treatment/conversion process for upgrading agricultural residues to a high-quality fuel, which could be used as an alternative energy resource to replace fossil fuels. In this paper, reaction kinetics for torrefaction of pelletized agro-residues biomass under dry flue gas conditions w...
Article
Full-text available
Torrefaction combined with densification for upgrading biomass to torrefied biomass pellets is increasingly of great interest since torrefied biomass pellets are considered as a major renewable energy source. Especially in the application of co-firing with coal, torrefaction may be easily integrated into an existing co-firing power plant, whose flu...
Article
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This research aimed to develop a cost model in acquiring various agricultural residues as fuels for biomass power plants and to investigate cost differentiation when sources of biomass materials were changed or combined to produce electricity. Database of agricultural residues including location, availability and price throughout Thailand was accum...
Article
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In this work, the catalytic upgrading of a bio-oil model compound via esterification with ethanol was studied using 12-tungstosilicic acid as the catalyst. The response surface method was used to investigate and optimize the process variables, which include the ethanol to acid molar ratio, catalyst loading, reaction temperature, and reaction time f...
Article
Machine learning was used to develop a model that had the capability to predict yields of solid products from biomass torrefaction using input features of biomass properties and torrefaction conditions. With ten-fold cross-validation, several machine learning algorithms were evaluated, and their hyper-parameters were optimized by a full-factor grid...
Article
Electricity Generating Authority of Thailand is the largest power producer in Thailand, owning and operating power plants at 45 sites across the country. With forthcoming global climate crisis, current effort in improving energy efficiency and adopting alternative sources of energy may not be sufficiently rapid. Post-combustion carbon capture with...
Article
Full-text available
Bio-oil produced from biomass fast pyrolysis process is an organic liquid that can be transformed into high quality biofuel through upgrading process. Bio-oil comprises a large amount of carboxylic acids, which cause its corrosiveness, hence, difficulty for storage and utilization. Esterification may be considered as an intermediate upgrading metho...
Article
Full-text available
Fast pyrolysis, in combination with torrefaction pretreatment, was used to convert tobacco residues to value-added bio-fuels and chemicals. Tobacco plant residues were torrefied at 220, 260, and 300 °C, before being pyrolyzed at 450, 500, 550, and 600 °C in a rotating blade ablative reactor under vacuum conditions to test the effects on product yie...
Article
Full-text available
The aim of this research was to evaluate the changes in physico-chemical properties of agricultural residues (corn-cobs and rice husks) during torrefaction. Physical properties of the torrefied biomass pellets were analysed. The results showed that increasing the torrefaction temperature and time resulted in reduced moisture and volatile matter con...