Sommani, Piyanart

Preferred name

Sommani, Piyanart

Alternative Name

Sommani, P.

Main Affiliation

School of Engineering

piyanart.so@kmitl.ac.th

Now showing 1 - 7 of 7

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Trends of Hydrogen Applications in Thailand
(2025-01-01)
Sommani, Piyanart
;
Hongbin, Nichit
;
Tipves, Kanrayaphus
;
Lothongkum, Anchaleeporn Waritswat
Thailand is on-going of establishing guidelines and mechanisms to tackle climate change and set a goal for carbon neutrality by 2050 to achieve net-zero GHG emissions by 2065. Thus, energy transition acceleration is of high concern. At present, hydrogen production and utilization in Thailand is limited to industrial sector only (e.g., chemical and petrochemical industries, semiconductor industry). To drive forward the use of hydrogen, the government agencies leading by the Energy Policy and Planning (EPPO), Ministry of Energy together with research institutions and business stakeholders have therefore been developing a national hydrogen strategic plan. This paper also presents a pilot project in northeast Thailand by the Electricity Generating Authority of Thailand (EGAT), Ministry of Energy to explore green hydrogen production and utilization for use towards the energy sector as green hydrogen is a versatile and clean energy carrier that offers a solution to the climate crisis. The project has been successfully operated. It is accomplished by storing wind electricity in the form of hydrogen, and then applying a wind-hydrogen hybrid system to a 300-kW fuel cell to produce electricity for EGAT’s energy learning center at the project site.
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Cogeneration system for energy saving and CO2 emission reduction: A case study of textile factory
(2020-04-30)
Sommani, P.
;
Krittametaporn, T.
;
Lothongkum, A. W.
Thailand has many textile factories of which the complete value chain consists of upstream, midstream and downstream sectors. It is well-known that textile manufacturing consumes considerable amount of energy. The textile factory in this case study is located at Bang Poo Industrial Estate in Samut Prakarn province, Thailand. It is categorized as a midstream sector and has been consuming final energy in terms of 87% thermal energy (steam) and 13% electrical energy. The factory had 6 fire-tube steam boilers having capacity of 40 tons steam per hour. The age of the existing boilers was longer than 20 years. Therefore, it was decided to install a cogeneration system to replace the existing boilers for energy saving, safety integrity and CO<inf>2</inf> emission reduction. The gas turbine topping cycle cogeneration system with waste heat recovery was selected due to several advantages such as low energy consumption, high boiler efficiency and high energy efficiency. Considering the energy and environmental issues, the results showed 92% overall efficiency, 19.5% primary energy or natural gas savings, and 38.6% reduction of CO<inf>2</inf> emission when compared to the separated heat and power system. In summary, the cogeneration system shows positive energy and environmental impacts.
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The Status and Practices of WEEE Management: A Case Study in Thailand
(2024-01-01)
Sommani, Piyanart
;
Hongbin, Nichit
;
Tipves, Kanrayaphus
;
Lothongkum, Anchaleeporn Waritswat
Advance technology and rising in a demand of electrical and electronic equipment (EEE) lead to the global crisis from an enormous amount of end-of-life EEE, so-called waste electrical and electronic equipment (WEEE). Regarding this issue, the drafts of the WEEE Management Act and the Integrated WEEE Management Action Plan were released publicly in Thailand. The chapters of the drafted WEEE Management Act in handling WEEE, not only from industry sector but also residential sector, are shown herein. Up to date, WEEE from the industry has been managed systematically by formal sectors, i.e., waste processor factories or the facilities licensed, while WEEE from the municipality has been managed mainly by informal sectors that can lead to negative impacts on environment and human health. Due to no WEEE Management Act issued, the majority of WEEE from the municipality goes to improper handling. In this paper, WEEE of a company case study is obtained from the industry and its management comprises sorting, dismantling, crushing and analysis of finished products, and finally transportation of finished products to the overseas partner smelters. Good practices of WEEE management of this case study fully cover pre-steps of WEEE processing; WEEE processing; and safety, environment, and social responsibility.
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Estimation of Power Consumption in Screw Gas Compressor Installed on Natural Gas Power Plant
(2025-01-01)
Sommani, Piyanart
;
Yoomak, Suntiti
;
Ananwattanaporn, Santipont
The knowledge of the precise power consumption of screw gas compressors, which is the highest power requirement when compared with other equipment used in natural gas power plants, can be an indicator of energy efficiency in natural gas power plants and impact the construction cost of the project. This paper proposed a calculation method for the estimated power requirement of the screw gas compressor and verified the calculation model with data from two different natural gas power plants. The verification methodology has been done by comparing the result with the obtained power from the unit during 11 operation scenarios. The result has indicated that the proposed calculation model can achieve an error less than 5% on all of operation scenarios. Thus, the proposed estimation model can be used to simplify the calculation process for the power requirement of a screw gas compressor.
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Status and Opportunities of Biogas Power Plants in Thailand and a Case Study
(2022-01-01)
Sommani, Piyanart
;
Lothongkum, Anchaleeporn Waritswat
Energy crisis and environmental pollution problems have drawn attention to increase renewable energy resource utilization and replace fossil fuels worldwide. For several decades, Thailand relies on fossil fuels in electricity generation and so on. The Ministry of Energy, Thailand complied the Development of Energy Plans to Thailand Integrated Energy Blueprint (TIEB) in 2020 for sustainable energy development in addition to overcome environmental problems. This case study shows energy recovery from wastes for self-sustain biogas power plants from chicken meat production. The onsite biogas power plant targets at a capacity of 1.5 MW at 24 h for every workday. The chicken manure can yield a biogas output of 128–134 m3/ton with the rate of electricity per biogas at 2.10 kWh/m3. Based on the project period for 15 years, the payback period, net present value (NPV), and internal rate of return (IRR) are 8.2 years, about 1,705,000 USD, and 8.86%, respectively. In general, the crucial success factor of biogas power plant installation mainly goes to concrete collaboration among the government and private sectors.
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Electrochemically Non-Enzymatic Urea Estimation in Human Dialysate Waste Using Indirect NiOOH-Urea Oxidation
(2023-01-01)
Janyasupab, Metini
;
Asavakijthananont, Narawee
;
Chanlek, Narong
;
Chio-Srichan, Sirinart
;
Zhang, Yuan
Non-enzymatic urea detection in human dialysate offers a sustainable and spontaneous platform for advanced analysis and monitoring. This study investigated urea estimation in dialysate by using an indirect urea oxidation of nickel on nitrogen doped carbon with an incorporation of surface roughness (R<inf>f</inf>) and double layer current (I<inf>dl</inf>). Fascinatingly, the second oxidation peak on (reverse) cathodic scan at 0.42 V vs Ag/AgCl in cyclic voltammetry and the first peak of differential pulse voltammetry (DPV) after background subtraction were evidenced to the exploited NiOOH binding with urea, concurrently with the regeneration of Ni(OH)<inf>2</inf>. In presence of more urea, the decreasing trends of the oxidation peaks in both techniques were observed and capable of determining urea concentrations in human dialysate. In consideration of actual reaction current, the measured total current after background subtraction in fresh simulated dialysate provides the sensitivity of −5.136 × 10−5 A.mM−1 (R2 = 0.998) and limit of detection of 60.2 μM in 1-5 mM linear range. For validation in patients’ dialysate, the total current peak was normalized by R<inf>f</inf> and subtracted from I<inf>dl</inf>, resulting in excellent urea estimation with recovery percentage between 99.18 and 102.68 in comparison to that of clinical standard, offering future prognostic monitoring and wearable artificial kidney.
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Solar Rooftop PV Power Generation for a Commercial Building in Thailand
(2023-01-01)
Sommani, Piyanart
;
Nookwan, Jiraporn
;
Lothongkum, Anchaleeporn Waritswat
Solar energy is significant potential for power and heat production. The Alternative Energy Development Plan 2018–2037 (AEDP2018) developing by Thailand’s Ministry of Energy demonstrates that solar energy is a key role in renewable energy utilization, especially for power generation. In general, solar photovoltaic (PV) technology is the most common type of solar power generation technology. This paper presented a potential of using grid-connected solar PV power generation system for the rooftop of a commercial building. The design and simulation of the solar rooftop PV power generation system and the economic analysis were accomplished. The installation of 1.85 MWp grid-connected solar PV power generation system on the rooftop area required 3,440 pieces of 540 Wp solar panels. By using PVsyst version 7.2, the solar panel configuration was connected in 20 pieces/string in series and 172 strings in parallel, with 80 kWac string inverters of 18 units. The simulated results of produced energy, specific production, and performance ratio were 2,678 MWh/year, 1,442 kWh/kWp/year, and 80% respectively. As a result, the energy cost saving was 269,317 USD with payback period (PB), net present value (NPV), and internal rate of return (IRR) of 6.37 years, 1,062,430 USD, and 15%, respectively. In conclusion, the installation of 1.85 MWp solar rooftop PV power generation system is technically feasible for the investment.

Sommani, Piyanart

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