Rajneesh Kaushal - Academia.edu (original) (raw)
Papers by Rajneesh Kaushal
International Journal of Engineering and Advanced Technology, 2019
In this research paper, Taguchi method, an influential technique for the optimization of operatio... more In this research paper, Taguchi method, an influential technique for the optimization of operational parameters, is used to analyse the dehumidification parameters for a flat plate liquid desiccant dehumidification system. An orthogonal array using analysis of variance (ANOVA) and signal to noise ratio (S/N) are applied to find the dehumidification parameters of a liquid desiccant dehumidification system (LDDS). Calcium chloride (CaCl2) is used as a liquid desiccant solution. In this study, desiccant flow rate, air velocity and desiccant solution concentration are kept as operating parameters to find out the optimal relative humidity for room comfort. Experimental findings have shown proficient agreement with this approach.
Design Engineering, Jul 27, 2021
Journal of Advanced Research in Dynamic and Control Systems, 2019
Biomass Conversion and Biorefinery
Sustainable Energy Technologies and Assessments
International Journal of Ambient Energy, 2022
This work reports enhancement in biogas production by using glycerine as a co-substrate with cow ... more This work reports enhancement in biogas production by using glycerine as a co-substrate with cow dung. Glycerine is a by-product in bio diesel industry, which is used to improve the biogas production as well as methane content. In this experiment the gas production is found to increase when compared to the one while using cow dung alone. From previous study it is found that when using glycerine in ratio of 4% and above (v/v) there is a significant drop in the pH of slurry due to production of volatile fatty acid which leads to decrease in gas over production. To cope with this problem a little amount of base calcium hydroxide is added to maintain pH and glycerine is added in ratio of 4% (v/v). The temperature was maintained between 34ºC to 40ºC. The pH was kept around 7. Overall gas production was increased by 10% and the methane content was also increased.
International Journal of Sustainable Engineering, 2019
ABSTRACT The biogas constituting majorly CH4 and CO2 has been produced by Ca(OH)2 pre-treated whe... more ABSTRACT The biogas constituting majorly CH4 and CO2 has been produced by Ca(OH)2 pre-treated wheat straw with pre-digested cow dung. Some of the key thermodynamic parameters like specific heat capacity, density and heating capacity of the biogas produced have also been calculated per day as well as throughout the hydraulic retention time. The governing equations of biogas with appropriate phase and interfacial conditions describing the physics of the biogas have been derived. The control volume approach has been used to predict the total volume (ml) of biogas, CH4 and CO2 throughout the experiment and on the daily basis. The effects of feedstock, temperature and pressure on the production of biogas, CH4 and CO2 in anaerobic digestion have also been studied. The average number of molar fraction and conversion ratio of CH4 and CO2 are correlated with number of carbon atoms available in feedstock. Numerical calculations by using developed model and Modified Gompertz model have shown proficient agreement with the experimental observations.
International Journal of Low-Carbon Technologies, 2019
This study deals with the simulation modeling of a 250 MW capacity coal-based power plant at diff... more This study deals with the simulation modeling of a 250 MW capacity coal-based power plant at different load conditions. The plant under study is subcritical, reheating and regenerative type situated in northern part of India. At present, computer-based programming and advanced software used in simulation, modeling and optimization used in process industries playing an important role. The present work related with the semi-empirical modeling for thermal performance analysis of a coal-fired power plant. The model basically includes the mass, energy balance equations. A typical thermodynamic property relation with empirical correlations using steam bled pressure extracted from turbine at various points in plant has been used. The necessary data collected from plant and model are applied in a general programming form for plant analysis. The process-based simulation model with the integration of steam generator, turbine, pump, condenser and feedwater heaters in the plant has been successfully run using the MATLAB calculation tool. The validation of the model has been done by comparing overall plant efficiency, coal consumption rate and mass flow rate of steam at various load conditions for 250 MW capacity plant under operating conditions. The results achieved through simulation model are found to be satisfactory. It is expected that this simulation model will help out to those engineers and researchers who are dealing with the improvement of design, analysis and optimization of coal-fired power plant.
International Journal of Ambient Energy, 2019
Graphene oxide nanoparticles (GO-NPs) and Ca(OH)2 pre-treated slurry mixed with wheat straw has b... more Graphene oxide nanoparticles (GO-NPs) and Ca(OH)2 pre-treated slurry mixed with wheat straw has been used to enhance the biogas and methane production in anaerobic digestion. The impact of the NPs and other additives (i.e. Ca(OH)2, urea and cow urine) on methane and biogas production was experimentally analysed using an anaerobic batch system. The optimum composition of GO-NPs and other additives were selected by referring previous studies The average methane concentration of 65% in 40 days of hydraulic retention time (HRT) has been observed using the GO-NPs. The cumulative methane yield (p < .05) with samples S1, S2, and S3 have been recorded as 33,154.47, 22,822.98 and 27,440.51 ml, respectively. However, the cumulative methane yields in all the samples S1, S2 and S3 have been enhanced by volume 2.54, 1.74, 2.1 times compared to the control through 40 days of HRT.
Biomass Conversion and Biorefinery
Lecture Notes in Electrical Engineering, 2021
The treatment of medical waste requires a unique approach so as to adhere to the basic environmen... more The treatment of medical waste requires a unique approach so as to adhere to the basic environment norms as well as fulfilling the necessity of health and safety of the population. The recent COVID-19 pandemic has thrown an open challenge to tackle the ever-increasing amount of plastics and other materials that are observing an exponential growth in the composition of medical waste. Plasma Gasification technology has proven to be quite beneficial in handling almost all types of medical waste. This technology has strengthened the concept of the circular economy by utilization the byproducts as valuable input to other materials. This research paper has reviewed the current status of the application of Plasma Gasification in handling medical waste. The review has checked the applicability of the technology in handling medical waste as well as studied the feasibility of the process via various research articles. The study has suggested the steps which need to be taken so as to make the ...
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Gasification is a process of converting carbon-enriched materials like phytomass, biowaste, etc. ... more Gasification is a process of converting carbon-enriched materials like phytomass, biowaste, etc. into a volatile gas popularly termed as “Producer gas” by providing a limited amount of gasifying ag...
Materials Today: Proceedings, 2020
Biodiesel is a potential alternative fuel source that shows the importance of fossil fuels and he... more Biodiesel is a potential alternative fuel source that shows the importance of fossil fuels and helps to keep diesel engines in use for a long time. Numerous research works have shown that biodiesel suffers from its drawbacks, including high viscosity, low volatility, low heat value and high NOx emissions, although some features of biodiesel promote their use, such as CO2, HC, and PM reduce emissions. Some researchers have also noted that these impairments can be overcome with the help of additives and increasing the use of biodiesel. The reduction in harmful effects of emissions on the environment has attracted the attention of researchers towards biodiesel additives. In this work the conclusion of experimental works from different types of additives mixed with jatropha biodiesel is presented. Experimental work includes various nanoparticles such as aluminum (Al), copper (C), zinc oxide (ZnO), carbon nano tubes (CNT), graphene oxide (GO), graphene nanoplates (GNP), carbon nanotubes ...
The essential objective of this paper was to research and look at creation of biogas from differe... more The essential objective of this paper was to research and look at creation of biogas from differed wellsprings of squander material. The Policy of Renewable energy imagines that 5% of complete vitality creation should be accomplished through 2015 and 10% through 2020 Tasnim et al. (Renew Energy 109:434, 2017 [1]). This effort centres on the similar investigation of the generation of biogas by anaerobic co-processing using deserted assets of biomass. Materials under investigation were waste paper, Kitchen edible material ravage, cow compost, pond sludge and Eichhornia (water hyacinth). Examinations were directed under mesophilic condition (42 °C) with 2.0 wt% NaOH and Ca (OH)2 to get the alluring pH. The stacking proportion of each group was kept up as 1:1 on the two investigations. Cakes of cow dung and edible material ravage revealed promising auspicious till about the 140th hour following falling generation of biogas. Entire mixture of 812 ml constituted of chemically treated 1 Li...
2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE), 2018
This paper demonstrates a mechanism of modeling the performance of inverters using performance da... more This paper demonstrates a mechanism of modeling the performance of inverters using performance data along with climatological parameters. integrating PV generation data at inverter level from different generation sources in a single platform. A robust network architecture along with the data communication devices is used for fetching the inverter level data. This data is appended with real time climatological parameters. A model is then developed for futuristic prediction of PV installation performance data with respect to climatological parameter. Artificial Neural Network (ANN) architecture is used in the process for correlating the climatological parameters with respect to each technology of solar panel for predicting DC current output of inverter. An accuracy of 93.9% is achieved through this model for predicting the DC output of a PV system
Australian Journal of Mechanical Engineering
In this manuscript, optimization of input parameters associated with the gasification of paddy st... more In this manuscript, optimization of input parameters associated with the gasification of paddy straw has been done by adopting a prominent optimization technique known as “Taguchi method”. An analysis of variance (ANOVA), orthogonal array is applied to discover the significant operating parameters effecting the generation of H2 & CH4 during paddy straw gasification process. Before implementation of Taguchi method, air flow velocity and equivalence ratio are selected as input parameters that influences the production of H2 & CH4. Results revealed that air flow velocity comes out to be significant input parameters in case of both H2 & CH4 generation rate.
International Journal of Engineering and Advanced Technology, 2019
In this research paper, Taguchi method, an influential technique for the optimization of operatio... more In this research paper, Taguchi method, an influential technique for the optimization of operational parameters, is used to analyse the dehumidification parameters for a flat plate liquid desiccant dehumidification system. An orthogonal array using analysis of variance (ANOVA) and signal to noise ratio (S/N) are applied to find the dehumidification parameters of a liquid desiccant dehumidification system (LDDS). Calcium chloride (CaCl2) is used as a liquid desiccant solution. In this study, desiccant flow rate, air velocity and desiccant solution concentration are kept as operating parameters to find out the optimal relative humidity for room comfort. Experimental findings have shown proficient agreement with this approach.
Design Engineering, Jul 27, 2021
Journal of Advanced Research in Dynamic and Control Systems, 2019
Biomass Conversion and Biorefinery
Sustainable Energy Technologies and Assessments
International Journal of Ambient Energy, 2022
This work reports enhancement in biogas production by using glycerine as a co-substrate with cow ... more This work reports enhancement in biogas production by using glycerine as a co-substrate with cow dung. Glycerine is a by-product in bio diesel industry, which is used to improve the biogas production as well as methane content. In this experiment the gas production is found to increase when compared to the one while using cow dung alone. From previous study it is found that when using glycerine in ratio of 4% and above (v/v) there is a significant drop in the pH of slurry due to production of volatile fatty acid which leads to decrease in gas over production. To cope with this problem a little amount of base calcium hydroxide is added to maintain pH and glycerine is added in ratio of 4% (v/v). The temperature was maintained between 34ºC to 40ºC. The pH was kept around 7. Overall gas production was increased by 10% and the methane content was also increased.
International Journal of Sustainable Engineering, 2019
ABSTRACT The biogas constituting majorly CH4 and CO2 has been produced by Ca(OH)2 pre-treated whe... more ABSTRACT The biogas constituting majorly CH4 and CO2 has been produced by Ca(OH)2 pre-treated wheat straw with pre-digested cow dung. Some of the key thermodynamic parameters like specific heat capacity, density and heating capacity of the biogas produced have also been calculated per day as well as throughout the hydraulic retention time. The governing equations of biogas with appropriate phase and interfacial conditions describing the physics of the biogas have been derived. The control volume approach has been used to predict the total volume (ml) of biogas, CH4 and CO2 throughout the experiment and on the daily basis. The effects of feedstock, temperature and pressure on the production of biogas, CH4 and CO2 in anaerobic digestion have also been studied. The average number of molar fraction and conversion ratio of CH4 and CO2 are correlated with number of carbon atoms available in feedstock. Numerical calculations by using developed model and Modified Gompertz model have shown proficient agreement with the experimental observations.
International Journal of Low-Carbon Technologies, 2019
This study deals with the simulation modeling of a 250 MW capacity coal-based power plant at diff... more This study deals with the simulation modeling of a 250 MW capacity coal-based power plant at different load conditions. The plant under study is subcritical, reheating and regenerative type situated in northern part of India. At present, computer-based programming and advanced software used in simulation, modeling and optimization used in process industries playing an important role. The present work related with the semi-empirical modeling for thermal performance analysis of a coal-fired power plant. The model basically includes the mass, energy balance equations. A typical thermodynamic property relation with empirical correlations using steam bled pressure extracted from turbine at various points in plant has been used. The necessary data collected from plant and model are applied in a general programming form for plant analysis. The process-based simulation model with the integration of steam generator, turbine, pump, condenser and feedwater heaters in the plant has been successfully run using the MATLAB calculation tool. The validation of the model has been done by comparing overall plant efficiency, coal consumption rate and mass flow rate of steam at various load conditions for 250 MW capacity plant under operating conditions. The results achieved through simulation model are found to be satisfactory. It is expected that this simulation model will help out to those engineers and researchers who are dealing with the improvement of design, analysis and optimization of coal-fired power plant.
International Journal of Ambient Energy, 2019
Graphene oxide nanoparticles (GO-NPs) and Ca(OH)2 pre-treated slurry mixed with wheat straw has b... more Graphene oxide nanoparticles (GO-NPs) and Ca(OH)2 pre-treated slurry mixed with wheat straw has been used to enhance the biogas and methane production in anaerobic digestion. The impact of the NPs and other additives (i.e. Ca(OH)2, urea and cow urine) on methane and biogas production was experimentally analysed using an anaerobic batch system. The optimum composition of GO-NPs and other additives were selected by referring previous studies The average methane concentration of 65% in 40 days of hydraulic retention time (HRT) has been observed using the GO-NPs. The cumulative methane yield (p < .05) with samples S1, S2, and S3 have been recorded as 33,154.47, 22,822.98 and 27,440.51 ml, respectively. However, the cumulative methane yields in all the samples S1, S2 and S3 have been enhanced by volume 2.54, 1.74, 2.1 times compared to the control through 40 days of HRT.
Biomass Conversion and Biorefinery
Lecture Notes in Electrical Engineering, 2021
The treatment of medical waste requires a unique approach so as to adhere to the basic environmen... more The treatment of medical waste requires a unique approach so as to adhere to the basic environment norms as well as fulfilling the necessity of health and safety of the population. The recent COVID-19 pandemic has thrown an open challenge to tackle the ever-increasing amount of plastics and other materials that are observing an exponential growth in the composition of medical waste. Plasma Gasification technology has proven to be quite beneficial in handling almost all types of medical waste. This technology has strengthened the concept of the circular economy by utilization the byproducts as valuable input to other materials. This research paper has reviewed the current status of the application of Plasma Gasification in handling medical waste. The review has checked the applicability of the technology in handling medical waste as well as studied the feasibility of the process via various research articles. The study has suggested the steps which need to be taken so as to make the ...
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Gasification is a process of converting carbon-enriched materials like phytomass, biowaste, etc. ... more Gasification is a process of converting carbon-enriched materials like phytomass, biowaste, etc. into a volatile gas popularly termed as “Producer gas” by providing a limited amount of gasifying ag...
Materials Today: Proceedings, 2020
Biodiesel is a potential alternative fuel source that shows the importance of fossil fuels and he... more Biodiesel is a potential alternative fuel source that shows the importance of fossil fuels and helps to keep diesel engines in use for a long time. Numerous research works have shown that biodiesel suffers from its drawbacks, including high viscosity, low volatility, low heat value and high NOx emissions, although some features of biodiesel promote their use, such as CO2, HC, and PM reduce emissions. Some researchers have also noted that these impairments can be overcome with the help of additives and increasing the use of biodiesel. The reduction in harmful effects of emissions on the environment has attracted the attention of researchers towards biodiesel additives. In this work the conclusion of experimental works from different types of additives mixed with jatropha biodiesel is presented. Experimental work includes various nanoparticles such as aluminum (Al), copper (C), zinc oxide (ZnO), carbon nano tubes (CNT), graphene oxide (GO), graphene nanoplates (GNP), carbon nanotubes ...
The essential objective of this paper was to research and look at creation of biogas from differe... more The essential objective of this paper was to research and look at creation of biogas from differed wellsprings of squander material. The Policy of Renewable energy imagines that 5% of complete vitality creation should be accomplished through 2015 and 10% through 2020 Tasnim et al. (Renew Energy 109:434, 2017 [1]). This effort centres on the similar investigation of the generation of biogas by anaerobic co-processing using deserted assets of biomass. Materials under investigation were waste paper, Kitchen edible material ravage, cow compost, pond sludge and Eichhornia (water hyacinth). Examinations were directed under mesophilic condition (42 °C) with 2.0 wt% NaOH and Ca (OH)2 to get the alluring pH. The stacking proportion of each group was kept up as 1:1 on the two investigations. Cakes of cow dung and edible material ravage revealed promising auspicious till about the 140th hour following falling generation of biogas. Entire mixture of 812 ml constituted of chemically treated 1 Li...
2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE), 2018
This paper demonstrates a mechanism of modeling the performance of inverters using performance da... more This paper demonstrates a mechanism of modeling the performance of inverters using performance data along with climatological parameters. integrating PV generation data at inverter level from different generation sources in a single platform. A robust network architecture along with the data communication devices is used for fetching the inverter level data. This data is appended with real time climatological parameters. A model is then developed for futuristic prediction of PV installation performance data with respect to climatological parameter. Artificial Neural Network (ANN) architecture is used in the process for correlating the climatological parameters with respect to each technology of solar panel for predicting DC current output of inverter. An accuracy of 93.9% is achieved through this model for predicting the DC output of a PV system
Australian Journal of Mechanical Engineering
In this manuscript, optimization of input parameters associated with the gasification of paddy st... more In this manuscript, optimization of input parameters associated with the gasification of paddy straw has been done by adopting a prominent optimization technique known as “Taguchi method”. An analysis of variance (ANOVA), orthogonal array is applied to discover the significant operating parameters effecting the generation of H2 & CH4 during paddy straw gasification process. Before implementation of Taguchi method, air flow velocity and equivalence ratio are selected as input parameters that influences the production of H2 & CH4. Results revealed that air flow velocity comes out to be significant input parameters in case of both H2 & CH4 generation rate.