The Experts below are selected from a list of 276 Experts worldwide ranked by ideXlab platform
Bidyut Baran Saha - One of the best experts on this subject based on the ideXlab platform.
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Study of a thermoelectric air Duct System assisted by photovoltaic wall for space cooling in tropical climate
Energy, 2017Co-Authors: Kashif Irshad, Khairul Habib, Firdaus Basrawi, Bidyut Baran SahaAbstract:The integration of building structure with renewable components such as photovoltaic (PV) panel and thermoelectric modules (TEMs), provides new opportunities for exploiting natural energy and minimizing impact on the environment. This paper presents experimental and simulation investigation of a novel thermoelectric air Duct System (TE-AD) assisted with photovoltaic (PV) System for space cooling in Malaysian weather condition. The north facing TE-AD System consist of fifteen TEMs assisted by 300 Wp south wall facing PV System for cooling of test room whose volume is 9.45 m3. Both simulation and experimental results were in good agreement and showed that PV assisted TE - AD System when operated at 6 A gives the optimum temperature difference of 6.8 °C with cooling capacity of 517.24 W and COP of 1.15. Combination of the TE-AD and PV System saves 1806.75 kWh/year with an additional benefit of Freon free, highly reliable and less fossil fuel consuming System.
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thermal comfort study of a building equipped with thermoelectric air Duct System for tropical climate
Applied Thermal Engineering, 2015Co-Authors: Kashif Irshad, Nagarajan Thirumalaiswamy, Khairul Habib, Firdaus Basrawi, R Saidur, Bidyut Baran SahaAbstract:Abstract This paper examined the performance of a thermo-electric air Duct System (TE-AD), which employs the thermo-electric module (TEMs) inside an air Duct for providing thermal comfort in Malaysian environment. Twenty human subjects were exposed to test room equipped with TE-AD System operating at six different input current supply from 2 A to 7 A. Both objective and subjective measurements were carried out. Results show that with the increment of input current supply to the TE-AD System, subject's thermal response related to indoor condition of test room shifted from warm to neutral. Optimum performance of the TE-AD System was obtained at the input current supply of 6 A, more than 80% of subjects responded in the range of ±1 and meets ASHARE standards of acceptability criteria. Further increase in input current supply deteriorates the cooling performance of the TE-AD System. Economic comparison of the TE-AD System with the existing air conditioning System shows that economic saving of US$ 127.34/year can be achieved with additional benefits of Freon free, convenient installation, no moving part and reliable operation.
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Performance analysis of a thermoelectric air Duct System for energy-efficient buildings
Energy, 2015Co-Authors: Kashif Irshad, Nagarajan Thirumalaiswamy, Khairul Habib, Bidyut Baran SahaAbstract:This paper describes experimental and simulation study results of an air Duct System that cools down airflow by using TEMs (thermoelectric modules). This System is designated as TE-AD (thermoelectric air Duct) System which consists of twenty four TEMs along with heat sink and fan for circulation of air. Both experimental and simulation results were in good agreement with each other and showed that the TE-AD System reduces room temperature in the range of 1.2-5.3 °C and humidity in the range of 5-31%. The COP (coefficient of performance) of the System ranges from 0.392 to 0.679 under different operating input current for Malaysian weather conditions. By comparing TE-AD System with conventional air conditioning System, energy saving of 38.83% and CO2emission mitigation of 38.81% was achieved with additional benefits of high reliability and refrigerant free System.
Kashif Irshad - One of the best experts on this subject based on the ideXlab platform.
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Study of a thermoelectric air Duct System assisted by photovoltaic wall for space cooling in tropical climate
Energy, 2017Co-Authors: Kashif Irshad, Khairul Habib, Firdaus Basrawi, Bidyut Baran SahaAbstract:The integration of building structure with renewable components such as photovoltaic (PV) panel and thermoelectric modules (TEMs), provides new opportunities for exploiting natural energy and minimizing impact on the environment. This paper presents experimental and simulation investigation of a novel thermoelectric air Duct System (TE-AD) assisted with photovoltaic (PV) System for space cooling in Malaysian weather condition. The north facing TE-AD System consist of fifteen TEMs assisted by 300 Wp south wall facing PV System for cooling of test room whose volume is 9.45 m3. Both simulation and experimental results were in good agreement and showed that PV assisted TE - AD System when operated at 6 A gives the optimum temperature difference of 6.8 °C with cooling capacity of 517.24 W and COP of 1.15. Combination of the TE-AD and PV System saves 1806.75 kWh/year with an additional benefit of Freon free, highly reliable and less fossil fuel consuming System.
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thermal comfort study of a building equipped with thermoelectric air Duct System for tropical climate
Applied Thermal Engineering, 2015Co-Authors: Kashif Irshad, Nagarajan Thirumalaiswamy, Khairul Habib, Firdaus Basrawi, R Saidur, Bidyut Baran SahaAbstract:Abstract This paper examined the performance of a thermo-electric air Duct System (TE-AD), which employs the thermo-electric module (TEMs) inside an air Duct for providing thermal comfort in Malaysian environment. Twenty human subjects were exposed to test room equipped with TE-AD System operating at six different input current supply from 2 A to 7 A. Both objective and subjective measurements were carried out. Results show that with the increment of input current supply to the TE-AD System, subject's thermal response related to indoor condition of test room shifted from warm to neutral. Optimum performance of the TE-AD System was obtained at the input current supply of 6 A, more than 80% of subjects responded in the range of ±1 and meets ASHARE standards of acceptability criteria. Further increase in input current supply deteriorates the cooling performance of the TE-AD System. Economic comparison of the TE-AD System with the existing air conditioning System shows that economic saving of US$ 127.34/year can be achieved with additional benefits of Freon free, convenient installation, no moving part and reliable operation.
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Performance analysis of a thermoelectric air Duct System for energy-efficient buildings
Energy, 2015Co-Authors: Kashif Irshad, Nagarajan Thirumalaiswamy, Khairul Habib, Bidyut Baran SahaAbstract:This paper describes experimental and simulation study results of an air Duct System that cools down airflow by using TEMs (thermoelectric modules). This System is designated as TE-AD (thermoelectric air Duct) System which consists of twenty four TEMs along with heat sink and fan for circulation of air. Both experimental and simulation results were in good agreement with each other and showed that the TE-AD System reduces room temperature in the range of 1.2-5.3 °C and humidity in the range of 5-31%. The COP (coefficient of performance) of the System ranges from 0.392 to 0.679 under different operating input current for Malaysian weather conditions. By comparing TE-AD System with conventional air conditioning System, energy saving of 38.83% and CO2emission mitigation of 38.81% was achieved with additional benefits of high reliability and refrigerant free System.
Khairul Habib - One of the best experts on this subject based on the ideXlab platform.
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Study of a thermoelectric air Duct System assisted by photovoltaic wall for space cooling in tropical climate
Energy, 2017Co-Authors: Kashif Irshad, Khairul Habib, Firdaus Basrawi, Bidyut Baran SahaAbstract:The integration of building structure with renewable components such as photovoltaic (PV) panel and thermoelectric modules (TEMs), provides new opportunities for exploiting natural energy and minimizing impact on the environment. This paper presents experimental and simulation investigation of a novel thermoelectric air Duct System (TE-AD) assisted with photovoltaic (PV) System for space cooling in Malaysian weather condition. The north facing TE-AD System consist of fifteen TEMs assisted by 300 Wp south wall facing PV System for cooling of test room whose volume is 9.45 m3. Both simulation and experimental results were in good agreement and showed that PV assisted TE - AD System when operated at 6 A gives the optimum temperature difference of 6.8 °C with cooling capacity of 517.24 W and COP of 1.15. Combination of the TE-AD and PV System saves 1806.75 kWh/year with an additional benefit of Freon free, highly reliable and less fossil fuel consuming System.
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thermal comfort study of a building equipped with thermoelectric air Duct System for tropical climate
Applied Thermal Engineering, 2015Co-Authors: Kashif Irshad, Nagarajan Thirumalaiswamy, Khairul Habib, Firdaus Basrawi, R Saidur, Bidyut Baran SahaAbstract:Abstract This paper examined the performance of a thermo-electric air Duct System (TE-AD), which employs the thermo-electric module (TEMs) inside an air Duct for providing thermal comfort in Malaysian environment. Twenty human subjects were exposed to test room equipped with TE-AD System operating at six different input current supply from 2 A to 7 A. Both objective and subjective measurements were carried out. Results show that with the increment of input current supply to the TE-AD System, subject's thermal response related to indoor condition of test room shifted from warm to neutral. Optimum performance of the TE-AD System was obtained at the input current supply of 6 A, more than 80% of subjects responded in the range of ±1 and meets ASHARE standards of acceptability criteria. Further increase in input current supply deteriorates the cooling performance of the TE-AD System. Economic comparison of the TE-AD System with the existing air conditioning System shows that economic saving of US$ 127.34/year can be achieved with additional benefits of Freon free, convenient installation, no moving part and reliable operation.
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Performance analysis of a thermoelectric air Duct System for energy-efficient buildings
Energy, 2015Co-Authors: Kashif Irshad, Nagarajan Thirumalaiswamy, Khairul Habib, Bidyut Baran SahaAbstract:This paper describes experimental and simulation study results of an air Duct System that cools down airflow by using TEMs (thermoelectric modules). This System is designated as TE-AD (thermoelectric air Duct) System which consists of twenty four TEMs along with heat sink and fan for circulation of air. Both experimental and simulation results were in good agreement with each other and showed that the TE-AD System reduces room temperature in the range of 1.2-5.3 °C and humidity in the range of 5-31%. The COP (coefficient of performance) of the System ranges from 0.392 to 0.679 under different operating input current for Malaysian weather conditions. By comparing TE-AD System with conventional air conditioning System, energy saving of 38.83% and CO2emission mitigation of 38.81% was achieved with additional benefits of high reliability and refrigerant free System.
Byoung S Kwon - One of the best experts on this subject based on the ideXlab platform.
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adult stem cells from the hyaluronic acid rich node and Duct System differentiate into neuronal cells and repair brain injury
Stem Cells and Development, 2014Co-Authors: Seung Joon Lee, Sunhee Hwang, Sang Hyun Park, Patrick M Kwon, Yu I Kim, In S Han, Byoung S KwonAbstract:The existence of a hyaluronic acid-rich node and Duct System (HAR-NDS) within the lymphatic and blood vessels was demonstrated previously. The HAR-NDS was enriched with small (3.0-5.0 μm in diameter), adult stem cells with properties similar to those of the very small embryonic-like stem cells (VSELs). Sca-1(+)Lin(-)CD45(-) cells were enriched approximately 100-fold in the intravascular HAR-NDS compared with the bone marrow. We named these adult stem cells "node and Duct stem cells (NDSCs)." NDSCs formed colonies on C2C12 feeder layers, were positive for fetal alkaline phosphatase, and could be subcultured on the feeder layers. NDSCs were Oct4(+)Nanog(+)SSEA-1(+)Sox2(+), while VSELs were Oct4(+)Nanog(+)SSEA-1(+)Sox2(-). NDSCs had higher sphere-forming efficiency and proliferative potential than VSELs, and they were found to differentiate into neuronal cells in vitro. Injection of NDSCs into mice partially repaired ischemic brain damage. Thus, we report the discovery of potential adult stem cells that may be involved in tissue regeneration. The intravascular HAR-NDS may serve as a route that delivers these stem cells to their target tissues.
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adult stem cells from the hyaluronic acid rich node and Duct System differentiate into neuronal cells and repair brain injury
Stem Cells and Development, 2014Co-Authors: Sang Hyun Park, Sunhee Hwang, Patrick M Kwon, Byoung S KwonAbstract:The existence of a hyaluronic acid-rich node and Duct System (HAR-NDS) within the lymphatic and blood vessels was demonstrated previously. The HAR-NDS was enriched with small (3.0–5.0 μm in diameter), adult stem cells with properties similar to those of the very small embryonic-like stem cells (VSELs). Sca-1+Lin−CD45− cells were enriched approximately 100-fold in the intravascular HAR-NDS compared with the bone marrow. We named these adult stem cells “node and Duct stem cells (NDSCs).” NDSCs formed colonies on C2C12 feeder layers, were positive for fetal alkaline phosphatase, and could be subcultured on the feeder layers. NDSCs were Oct4+Nanog+SSEA-1+Sox2+, while VSELs were Oct4+Nanog+SSEA-1+Sox2−. NDSCs had higher sphere-forming efficiency and proliferative potential than VSELs, and they were found to differentiate into neuronal cells in vitro. Injection of NDSCs into mice partially repaired ischemic brain damage. Thus, we report the discovery of potential adult stem cells that may be involved in tissue ...
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nonmarrow hematopoiesis occurs in a hyaluronic acid rich node and Duct System in mice
Stem Cells and Development, 2014Co-Authors: Sunhee Hwang, Seung Joon Lee, Sang H Park, Brahmananda R Chitteti, Edward F Srour, Scott Cooper, Giao Hangoc, Hal E Broxmeyer, Byoung S KwonAbstract:A hyaluronic-acid-rich node and Duct System (HAR-NDS) was found on the surface of internal organs of mice, and inside their blood and lymph vessels. The nodes (HAR-Ns) were filled with immune cells of the innate System and were especially enriched with mast cells and histiocytes. They also contained hematopoietic progenitor cells (HPCs), such as granulocyte-macrophage, erythroid, multipotential progenitors, and mast cell progenitors (MCPs). MCPs were the most abundant among the HPCs in HAR-Ns. Their frequency was fivefold higher than that of the MCPs in bone marrow. In addition, the System contained pluripotent stem cells (PSCs) capable of producing CD45(-)Flk1(+) hemangioblast-like cells, which subsequently generated various types of HPCs and differentiated blood cells. Although HAR-Ns did not appear to harbor enough number of cells capable of long-term reconstitution or short-term radioprotection of lethally irradiated recipients, bone marrow cells were able to engraft in the HAR-NDS and reconstitute hematopoietic potentials of the System. PSCs and HPCs were consistently found in intravenous, intralymphatic, and intestinal HAR-ND. We infer that PSCs and HPCs reside in the HAR-ND and that this novel System may serve as an alternative means to traffic immature and mature blood cells throughout the body.
Firdaus Basrawi - One of the best experts on this subject based on the ideXlab platform.
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Study of a thermoelectric air Duct System assisted by photovoltaic wall for space cooling in tropical climate
Energy, 2017Co-Authors: Kashif Irshad, Khairul Habib, Firdaus Basrawi, Bidyut Baran SahaAbstract:The integration of building structure with renewable components such as photovoltaic (PV) panel and thermoelectric modules (TEMs), provides new opportunities for exploiting natural energy and minimizing impact on the environment. This paper presents experimental and simulation investigation of a novel thermoelectric air Duct System (TE-AD) assisted with photovoltaic (PV) System for space cooling in Malaysian weather condition. The north facing TE-AD System consist of fifteen TEMs assisted by 300 Wp south wall facing PV System for cooling of test room whose volume is 9.45 m3. Both simulation and experimental results were in good agreement and showed that PV assisted TE - AD System when operated at 6 A gives the optimum temperature difference of 6.8 °C with cooling capacity of 517.24 W and COP of 1.15. Combination of the TE-AD and PV System saves 1806.75 kWh/year with an additional benefit of Freon free, highly reliable and less fossil fuel consuming System.
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thermal comfort study of a building equipped with thermoelectric air Duct System for tropical climate
Applied Thermal Engineering, 2015Co-Authors: Kashif Irshad, Nagarajan Thirumalaiswamy, Khairul Habib, Firdaus Basrawi, R Saidur, Bidyut Baran SahaAbstract:Abstract This paper examined the performance of a thermo-electric air Duct System (TE-AD), which employs the thermo-electric module (TEMs) inside an air Duct for providing thermal comfort in Malaysian environment. Twenty human subjects were exposed to test room equipped with TE-AD System operating at six different input current supply from 2 A to 7 A. Both objective and subjective measurements were carried out. Results show that with the increment of input current supply to the TE-AD System, subject's thermal response related to indoor condition of test room shifted from warm to neutral. Optimum performance of the TE-AD System was obtained at the input current supply of 6 A, more than 80% of subjects responded in the range of ±1 and meets ASHARE standards of acceptability criteria. Further increase in input current supply deteriorates the cooling performance of the TE-AD System. Economic comparison of the TE-AD System with the existing air conditioning System shows that economic saving of US$ 127.34/year can be achieved with additional benefits of Freon free, convenient installation, no moving part and reliable operation.
