Modeling of a Downdraft Gasifier Combined with Externally Fired Gas Turbine using rice straw for generating electricity in Egypt

El-Sattar, Hoda Abd; Kamel, Salah; Tawfik, M. A.; Vera, David

doi:10.1109/mepcon.2016.7836977

Cited by 8 publications

(1 citation statement)

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“…The tar content that appears is less than the updraft type because the tar content resulting from the pyrolysis process is carried away with the gas and then enters the partial oxidation process and reaches temperatures of up to 900 o C, at which temperature the tar content breaks down into lighter compounds [12]. The refined and cooled syn-gas output can feed directly into the diesel engine [13].…”

Section: Downdraft Gasificationmentioning

confidence: 99%

Waste to energy implementation using gasification technology in Tinggi Island

2020

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The existence of electricity can encourage the improvement of the quality of life of the community. However, there are several problems with the provision of electricity in remote areas, including difficulties in delivering electrical equipment and fuel. One solution to solve this problem is implementing local waste utilization as fuel for power plants. This study aims to implement Waste to Energy using gasification technology on Tinggi Island, South Bangka. The methods used in this research are to calculate the potential amount of waste, design the equipment specification, make the supporting facilities, and do a testing experiment. Due to the low waste potential in Tinggi Island, local communities’ waste processing is carried out in Toboali. The waste processing stages are sorting, fermentation, chopping, drying, and pressing. The waste pellets from Toboali are sent to the powerhouse in Tinggi Island. From the performance and reliability test in the electrical side, it can be concluded that the voltage and the frequency generated is stable and within the safe limits according to Regulation of the Minister of Energy and Mineral Resources No. 03 of 2007. The consumption of waste pellets needed to generate electricity during the reliability test (75% loading) is ten kg/45 minutes. Through the continuous implementation of waste to energy, Tinggi Island can be electrified all day long and solve the waste problem.

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Section: Downdraft Gasificationmentioning

confidence: 99%

Waste to energy implementation using gasification technology in Tinggi Island

2020

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Fixed bed gasification of corn stover biomass fuel: Egypt as a case study

El-Sattar

Kamel

2019

Biofuels Bioprod Bioref

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This paper focuses on the optimal performance of a small tri‐generation power, heat, and cooling plant, which uses corn stover as the feedstock. First, 100 kg h−1 of the corn stover is converted into syngas by the gasification process, using a downdraft fixed‐bed reactor at gasification temperatures reaching 995 °C and with an oxidant–fuel ratio of 1.65. About 243.18 kg h−1 of product gas mass flow with 4.766 MJ kg−1 of calorific value is supplied to an externally fired gas turbine (EFGT) to convert this fuel to electrical power. It is estimated that the EFGT is capable of producing 70.57 kW of electrical power with a high‐temperature heat exchanger efficiency of 75% and a pressure ratio of 4.84 at a turbine inlet temperature of 875 °C. The absorption refrigeration system is used for the cooling process. The cooling power (ℚ eva ) of the absorption cooling system is 130.92 kW with a cooling tower temperature of 15 °C and a system performance coefficient (PC) of 0.6. The recovered heat flow to the generator ( ℚ gen ) and the refrigerating heat flow are 82.62 kWth and 48.83 kWref , respectively, with a circulation ratio of 4.07. For the whole system (gasifier, EFGT, and absorption cooling), the gross electrical efficiency (ηnetEL ) is 21.78% and the net thermal efficiency (ηth ) is 47.43% with a system cooling‐to‐power ratio (CPR) of 1.88. The simulation of this system was conducted using Cycle‐Tempo software. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd

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