The Experts below are selected from a list of 918 Experts worldwide ranked by ideXlab platform
Alessandro Parente - One of the best experts on this subject based on the ideXlab platform.
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waste heat recovery optimization in micro gas turbine applications using advanced humidified gas turbine Cycle concepts
Applied Energy, 2017Co-Authors: Ward De Paepe, Marina Montero Carrero, Svend Bram, Francesco Contino, Alessandro ParenteAbstract:Abstract Introduction of water in a micro Gas Turbine (mGT) has proven to be a very effective method to recover waste heat into the Cycle, since it increases the mGT electrical efficiency significantly. Different routes exist for water introduction in the mGT Cycle. Classical routes, like injection of steam/preheated water or the micro Humid Air Turbine (mHAT) concept, where water is introduced in the Cycle by means of a saturation tower, have shown to have high potential. However none of the previously mentioned Cycles exploits the full thermodynamic potential for waste heat recovery through water introduction. More advanced humidified Gas Turbine (GT) Cycles have been proposed and studied for large scale GTs. So far, none of these concepts have been applied on mGT scale, despite their high potential. In this paper, we study the impact of these different, more advanced, humidified GT Cycle concepts on the mGT performance. The different selected Cycles – next to the classical steam injection or injection of (preheated) liquid water in the Recuperated Cycle and the mHAT – were: micro Humid Air Turbine Plus (mHAT+), Advanced Humid Air Turbine (AHAT) and the REgenerative EVAPoration (REVAP®) Cycle concept. The impact of these concepts on the mGT Cycle performance has been studied on the Turbec T100 mGT. Simulations indicated that humidifying the air of the mGT has a significant beneficial effect on Cycle performance due to the increased waste heat recovery, resulting in a higher electrical power output (at constant rotational speed) or reduced fuel consumption (at constant power output), both leading to an increased electrical efficiency. Depending on the different Cycle layout used, more or less waste heat could be recovered from the exhaust gas. The REVAP® concept with feedwater preheat was identified as the optimal Cycle layout within the selected options. By applying this concept to the Turbec T100, most waste heat could be recovered, achieving the highest electrical efficiency increase.
Francesco Contino - One of the best experts on this subject based on the ideXlab platform.
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waste heat recovery optimization in micro gas turbine applications using advanced humidified gas turbine Cycle concepts
Applied Energy, 2017Co-Authors: Ward De Paepe, Marina Montero Carrero, Svend Bram, Francesco Contino, Alessandro ParenteAbstract:Abstract Introduction of water in a micro Gas Turbine (mGT) has proven to be a very effective method to recover waste heat into the Cycle, since it increases the mGT electrical efficiency significantly. Different routes exist for water introduction in the mGT Cycle. Classical routes, like injection of steam/preheated water or the micro Humid Air Turbine (mHAT) concept, where water is introduced in the Cycle by means of a saturation tower, have shown to have high potential. However none of the previously mentioned Cycles exploits the full thermodynamic potential for waste heat recovery through water introduction. More advanced humidified Gas Turbine (GT) Cycles have been proposed and studied for large scale GTs. So far, none of these concepts have been applied on mGT scale, despite their high potential. In this paper, we study the impact of these different, more advanced, humidified GT Cycle concepts on the mGT performance. The different selected Cycles – next to the classical steam injection or injection of (preheated) liquid water in the Recuperated Cycle and the mHAT – were: micro Humid Air Turbine Plus (mHAT+), Advanced Humid Air Turbine (AHAT) and the REgenerative EVAPoration (REVAP®) Cycle concept. The impact of these concepts on the mGT Cycle performance has been studied on the Turbec T100 mGT. Simulations indicated that humidifying the air of the mGT has a significant beneficial effect on Cycle performance due to the increased waste heat recovery, resulting in a higher electrical power output (at constant rotational speed) or reduced fuel consumption (at constant power output), both leading to an increased electrical efficiency. Depending on the different Cycle layout used, more or less waste heat could be recovered from the exhaust gas. The REVAP® concept with feedwater preheat was identified as the optimal Cycle layout within the selected options. By applying this concept to the Turbec T100, most waste heat could be recovered, achieving the highest electrical efficiency increase.
Marina Montero Carrero - One of the best experts on this subject based on the ideXlab platform.
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waste heat recovery optimization in micro gas turbine applications using advanced humidified gas turbine Cycle concepts
Applied Energy, 2017Co-Authors: Ward De Paepe, Marina Montero Carrero, Svend Bram, Francesco Contino, Alessandro ParenteAbstract:Abstract Introduction of water in a micro Gas Turbine (mGT) has proven to be a very effective method to recover waste heat into the Cycle, since it increases the mGT electrical efficiency significantly. Different routes exist for water introduction in the mGT Cycle. Classical routes, like injection of steam/preheated water or the micro Humid Air Turbine (mHAT) concept, where water is introduced in the Cycle by means of a saturation tower, have shown to have high potential. However none of the previously mentioned Cycles exploits the full thermodynamic potential for waste heat recovery through water introduction. More advanced humidified Gas Turbine (GT) Cycles have been proposed and studied for large scale GTs. So far, none of these concepts have been applied on mGT scale, despite their high potential. In this paper, we study the impact of these different, more advanced, humidified GT Cycle concepts on the mGT performance. The different selected Cycles – next to the classical steam injection or injection of (preheated) liquid water in the Recuperated Cycle and the mHAT – were: micro Humid Air Turbine Plus (mHAT+), Advanced Humid Air Turbine (AHAT) and the REgenerative EVAPoration (REVAP®) Cycle concept. The impact of these concepts on the mGT Cycle performance has been studied on the Turbec T100 mGT. Simulations indicated that humidifying the air of the mGT has a significant beneficial effect on Cycle performance due to the increased waste heat recovery, resulting in a higher electrical power output (at constant rotational speed) or reduced fuel consumption (at constant power output), both leading to an increased electrical efficiency. Depending on the different Cycle layout used, more or less waste heat could be recovered from the exhaust gas. The REVAP® concept with feedwater preheat was identified as the optimal Cycle layout within the selected options. By applying this concept to the Turbec T100, most waste heat could be recovered, achieving the highest electrical efficiency increase.
Svend Bram - One of the best experts on this subject based on the ideXlab platform.
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waste heat recovery optimization in micro gas turbine applications using advanced humidified gas turbine Cycle concepts
Applied Energy, 2017Co-Authors: Ward De Paepe, Marina Montero Carrero, Svend Bram, Francesco Contino, Alessandro ParenteAbstract:Abstract Introduction of water in a micro Gas Turbine (mGT) has proven to be a very effective method to recover waste heat into the Cycle, since it increases the mGT electrical efficiency significantly. Different routes exist for water introduction in the mGT Cycle. Classical routes, like injection of steam/preheated water or the micro Humid Air Turbine (mHAT) concept, where water is introduced in the Cycle by means of a saturation tower, have shown to have high potential. However none of the previously mentioned Cycles exploits the full thermodynamic potential for waste heat recovery through water introduction. More advanced humidified Gas Turbine (GT) Cycles have been proposed and studied for large scale GTs. So far, none of these concepts have been applied on mGT scale, despite their high potential. In this paper, we study the impact of these different, more advanced, humidified GT Cycle concepts on the mGT performance. The different selected Cycles – next to the classical steam injection or injection of (preheated) liquid water in the Recuperated Cycle and the mHAT – were: micro Humid Air Turbine Plus (mHAT+), Advanced Humid Air Turbine (AHAT) and the REgenerative EVAPoration (REVAP®) Cycle concept. The impact of these concepts on the mGT Cycle performance has been studied on the Turbec T100 mGT. Simulations indicated that humidifying the air of the mGT has a significant beneficial effect on Cycle performance due to the increased waste heat recovery, resulting in a higher electrical power output (at constant rotational speed) or reduced fuel consumption (at constant power output), both leading to an increased electrical efficiency. Depending on the different Cycle layout used, more or less waste heat could be recovered from the exhaust gas. The REVAP® concept with feedwater preheat was identified as the optimal Cycle layout within the selected options. By applying this concept to the Turbec T100, most waste heat could be recovered, achieving the highest electrical efficiency increase.
Jesuino Takachi Tomita - One of the best experts on this subject based on the ideXlab platform.
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Thermoeconomic optimization of organic Rankine bottoming Cycles for micro gas turbines
Applied Thermal Engineering, 2020Co-Authors: Gustavo Bonolo De Campos, Cleverson Bringhenti, Alberto Traverso, Jesuino Takachi TomitaAbstract:Abstract In an increasingly decentralized energy market, micro gas turbines are seen with great potential due to their low emissions and fuel flexibility, which aligns with growing environmental concerns. Although presenting a relatively low efficiency, these machines could be improved by coupling it with an organic Rankine Cycle. This manuscript covers the thermoeconomic design and optimization of such bottoming Cycle for a 100 kWe micro gas turbine. The tool employed for such calculations is extensively described and was developed using solely open resources. The results shown that the saturation temperature at ambient pressure was an important variable when the minimum pressure is constrained above ambient and that a high degree of superheating was favored when the Recuperated Cycle is heated directly by the microturbine flue gases. Pentane was flagged as the best working fluid, generating 14.1 kWe of additional power and increasing the overall electric efficiency from 30 to 34.2%. The Authors show that at the current state of the art an efficiency of around 35% is the upper practical limit for such microturbine organic Rankine Cycle combination.