Augustine K. Osoh, Okereke E. Aru, gwe J. Eze, O. Adeyi, Okolo B. Ibezim, J. A. Adeyi, K. Nwosu‐Obieogu, Oke E. Olusola
Application and efficiency of bio-coagulants for petroleum wastewater biocoagulation, flocculation, and sedimentation (bioclarification) are still confined to laboratory proof-of-concept practice. The scale-up process design of bio-clarified water recovery from petroleum wastewater has been a major research lacuna. This paper presents ASPEN Base Case Scale-Up Simulation (BCSUS) using optimum laboratory experimental data and techno-economic predictive models for bioclarified water production from petroleum wastewater. The BCSUS, process design, and economics were performed in the ASPEN Batch Process Developer V10 environment. Predictive models for predicting and optimizing techno-economic parameters such as return on investment (ROI), payback time (PBT), and production rate (PR) were achieved in RSM via the Box-Behnken Design (BBD) technique of Design Expert V13. The base case techno-economic model gave batch size, annual production cost, Total Capital Investment (TCI), PBT, and ROI of 406kg, $9195, $631484, 5.18 years, and 17%, respectively, at the selling price of 2 $0.225. The regression models gave R values of 0.9984 for ROI and 0.9920 for PBT, while the production rate was 0.8867. This study shows that a petroleum wastewater bioclarification scale-up design is feasible.
{"title":"Techno-Economic Modelling of Bioclarified Water Recovery from Petroleum Wastewater Using ASPEN Software and Box-Behnken Design","authors":"Augustine K. Osoh, Okereke E. Aru, gwe J. Eze, O. Adeyi, Okolo B. Ibezim, J. A. Adeyi, K. Nwosu‐Obieogu, Oke E. Olusola","doi":"10.61448/jerisd22241","DOIUrl":"https://doi.org/10.61448/jerisd22241","url":null,"abstract":"Application and efficiency of bio-coagulants for petroleum wastewater biocoagulation, flocculation, and sedimentation (bioclarification) are still confined to laboratory proof-of-concept practice. The scale-up process design of bio-clarified water recovery from petroleum wastewater has been a major research lacuna. This paper presents ASPEN Base Case Scale-Up Simulation (BCSUS) using optimum laboratory experimental data and techno-economic predictive models for bioclarified water production from petroleum wastewater. The BCSUS, process design, and economics were performed in the ASPEN Batch Process Developer V10 environment. Predictive models for predicting and optimizing techno-economic parameters such as return on investment (ROI), payback time (PBT), and production rate (PR) were achieved in RSM via the Box-Behnken Design (BBD) technique of Design Expert V13. The base case techno-economic model gave batch size, annual production cost, Total Capital Investment (TCI), PBT, and ROI of 406kg, $9195, $631484, 5.18 years, and 17%, respectively, at the selling price of 2 $0.225. The regression models gave R values of 0.9984 for ROI and 0.9920 for PBT, while the production rate was 0.8867. This study shows that a petroleum wastewater bioclarification scale-up design is feasible.","PeriodicalId":484452,"journal":{"name":"Journal Of Engineering Research Innovation And Scientific Development","volume":"105 45","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141124722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of an Ultrasonic-based Digital Height Measurement System","authors":"okome henry","doi":"10.61448/jerisd132366","DOIUrl":"https://doi.org/10.61448/jerisd132366","url":null,"abstract":"","PeriodicalId":484452,"journal":{"name":"Journal Of Engineering Research Innovation And Scientific Development","volume":"61 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140250858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ogunbiyi Olalekan, Lambe Mutalub Adesina, Daniel Abayomi Ajala, IsaacOnimisi Yusuf
This paper presents the design, sensor selection, circuitry, firmware development, and testing of an ultrasonicbased digital height meter. An Atmega328 microcontroller is used in the design to handle sensor measurements as it investigates the utilization of HC-SR04 ultrasonic sensor technology. Firmware was developed in the Arduino IDE environment, and the sketch was uploaded to the microcontroller. The designed circuit was constructed on a Veroboard, and the casing was designed for convenience of use. Ultrasonic digital height meters are more accurate, dependable, and quick when compared to hospital meter rules. The apparatus was mounted at a height of 2 meters to ease the measurement of humans. Results from the measurement of nine people were compared with those of the hospital scale, and a percentage error of 0.55% was obtained. A digital height meter can be a very useful instrument for many different applications, including medical, educational, engineering, and surveying, with careful planning and implementation.
{"title":"Development of an Ultrasonic-based Digital Height Measurement System","authors":"Ogunbiyi Olalekan, Lambe Mutalub Adesina, Daniel Abayomi Ajala, IsaacOnimisi Yusuf","doi":"10.61448/jerisd12237","DOIUrl":"https://doi.org/10.61448/jerisd12237","url":null,"abstract":"This paper presents the design, sensor selection, circuitry, firmware development, and testing of an ultrasonicbased digital height meter. An Atmega328 microcontroller is used in the design to handle sensor measurements as it investigates the utilization of HC-SR04 ultrasonic sensor technology. Firmware was developed in the Arduino IDE environment, and the sketch was uploaded to the microcontroller. The designed circuit was constructed on a Veroboard, and the casing was designed for convenience of use. Ultrasonic digital height meters are more accurate, dependable, and quick when compared to hospital meter rules. The apparatus was mounted at a height of 2 meters to ease the measurement of humans. Results from the measurement of nine people were compared with those of the hospital scale, and a percentage error of 0.55% was obtained. A digital height meter can be a very useful instrument for many different applications, including medical, educational, engineering, and surveying, with careful planning and implementation.","PeriodicalId":484452,"journal":{"name":"Journal Of Engineering Research Innovation And Scientific Development","volume":"11 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136312552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Biocides Blend on Microorganisms in Produced Water","authors":"Evuensiri Onoghwarite Ohimor, Ambrose Onajite Akakabota","doi":"10.61448/jerisd12233","DOIUrl":"https://doi.org/10.61448/jerisd12233","url":null,"abstract":"","PeriodicalId":484452,"journal":{"name":"Journal Of Engineering Research Innovation And Scientific Development","volume":"42 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A key concern with the optimal use of direct current (DC) motor is model updates. In this article, DC motor models from probability density function (PDF) data have been obtained using the system identification method in MATLAB. At first, noise-free input and output data were used to obtain the parameters of the AutoRegressive with eXogenous input (ARX) model structure. Thereafter, the DC motor subjected to random noise had its input and output data used to obtain the ARX model parameters. However, the resulting model from the noisy data differed from the noise-free data model. To minimize this difference, 200 input/output data set for the noisy DC motor were generated and used to obtain the model parameter for each data set. The mean of the 200 data set was obtained, and the resulting model approached the noise-free model as much as possible. The root-mean-squared error of prediction stands at 3.9426E-17, 3.35E-2, and 3.15E-2 for noise-free, noisy, and mean of noisy DC motor model, respectively, showing accuracy of result for noise-free system. The article provides a way by which the model of the DC motor can be updated when it is not convenient or possible to measure the DC motor parameters when used for motion actuation. The parameters of the selected model structure are therefore estimated from the DC motor input/output data instead of the DC motor parameters itself.
最佳使用直流(DC)电机的一个关键问题是模型更新。本文利用MATLAB中的系统辨识方法，从概率密度函数(PDF)数据中得到直流电机模型。首先，利用无噪声输入和输出数据获得带有外生输入的自回归(AutoRegressive with eXogenous input, ARX)模型结构的参数。然后，将受随机噪声影响的直流电动机的输入和输出数据用于获取ARX模型参数。然而，从有噪声数据得到的模型与无噪声数据模型不同。为了最小化这一差异，我们生成了噪声直流电机的200个输入/输出数据集，并用于获取每个数据集的模型参数。得到200个数据集的均值，所得模型尽可能接近无噪声模型。有噪声直流电机模型的无噪声、有噪声和均值预测的均方根误差分别为3.9426E-17、3.35E-2和3.15E-2，表明无噪声系统预测结果的准确性。本文提供了一种在不方便或不可能测量运动驱动的直流电动机参数时，可以更新直流电动机模型的方法。因此，所选模型结构的参数是从直流电机输入/输出数据而不是直流电机参数本身估计出来的。
{"title":"Modelling of Direct Current (DC) Motor for Performance Improvement using Model Parameter Estimation","authors":"Ojonugwa Adukwu, Olurotimi Akintunde Dehunsi, Kanisuru Adeyeri","doi":"10.61448/jerisd12235","DOIUrl":"https://doi.org/10.61448/jerisd12235","url":null,"abstract":"A key concern with the optimal use of direct current (DC) motor is model updates. In this article, DC motor models from probability density function (PDF) data have been obtained using the system identification method in MATLAB. At first, noise-free input and output data were used to obtain the parameters of the AutoRegressive with eXogenous input (ARX) model structure. Thereafter, the DC motor subjected to random noise had its input and output data used to obtain the ARX model parameters. However, the resulting model from the noisy data differed from the noise-free data model. To minimize this difference, 200 input/output data set for the noisy DC motor were generated and used to obtain the model parameter for each data set. The mean of the 200 data set was obtained, and the resulting model approached the noise-free model as much as possible. The root-mean-squared error of prediction stands at 3.9426E-17, 3.35E-2, and 3.15E-2 for noise-free, noisy, and mean of noisy DC motor model, respectively, showing accuracy of result for noise-free system. The article provides a way by which the model of the DC motor can be updated when it is not convenient or possible to measure the DC motor parameters when used for motion actuation. The parameters of the selected model structure are therefore estimated from the DC motor input/output data instead of the DC motor parameters itself.","PeriodicalId":484452,"journal":{"name":"Journal Of Engineering Research Innovation And Scientific Development","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The exergy analysis of the Ogorode steam plant is presented. The aim was to determine and identify the magnitudes and locations of real exergy losses in order to improve plant efficiency. The exergy losses occurred in the various components of the steam plant, such as the boiler, economizer, turbine, super heater, condenser, pump, feed water heater, reheater, and air pre-heater, and these have been calculated using the concepts of availability or available exergy and irreversibility. The temperature and pressure of the plant's running conditions were combined to determine the process irreversibility (exergy losses) and the exergy efficiency of the plant. The exergy losses of the individual components of the plant show that the maximum exergy losses are in steam turbine operation one (STO ) and steam turbine operation two (STO ). STO and STO are 813 kJ/kg, 1 2 1 2 820 kJ/kg, 822 kJ/kg, and 815 kJ/kg that occurred in the turbine between 2019 and 2021, while the minimum exergy losses in STO and STO are 68 kJ/kg, 150 kJ/kg, 1 2 280 kJ/kg, and 276 kJ/kg that occurred in the boiler system between 2019 and 2021. There was a high energy efficiency of 82% and 80% in the superheater between 2019 and 2021, while 89% in the feed water heater and 73% in the superheater had the same duration. The efficiency of 15% and 21% were the minimum in the pump system between 2019 and 2021, while the turbine had a minimum of 20% and 27% from 2019 to 2021. The highest losses of exergy occurred in the turbine as a result of the irreversibility inherent in the turbine process, corroded turbine blades as a result of wet steam, and low energy delivered to the superheater tubes. It was concluded that the turbine inlet temperature should be increased, more energy delivered to the superheater should be increased, boiler pressure should be increased, and weak feed water heaters should be replaced for better performance of the thermal plant.
{"title":"Exergy Audit of Thermodynamic Parameters and Performance Analysis of OgorodeThermal Power Plant in Delta State, Nigeria.","authors":"Sunday Iweriolor, Anwule Liberty, Blessing Josephine Ossai","doi":"10.61448/jerisd/1.2.2023.2","DOIUrl":"https://doi.org/10.61448/jerisd/1.2.2023.2","url":null,"abstract":"The exergy analysis of the Ogorode steam plant is presented. The aim was to determine and identify the magnitudes and locations of real exergy losses in order to improve plant efficiency. The exergy losses occurred in the various components of the steam plant, such as the boiler, economizer, turbine, super heater, condenser, pump, feed water heater, reheater, and air pre-heater, and these have been calculated using the concepts of availability or available exergy and irreversibility. The temperature and pressure of the plant's running conditions were combined to determine the process irreversibility (exergy losses) and the exergy efficiency of the plant. The exergy losses of the individual components of the plant show that the maximum exergy losses are in steam turbine operation one (STO ) and steam turbine operation two (STO ). STO and STO are 813 kJ/kg, 1 2 1 2 820 kJ/kg, 822 kJ/kg, and 815 kJ/kg that occurred in the turbine between 2019 and 2021, while the minimum exergy losses in STO and STO are 68 kJ/kg, 150 kJ/kg, 1 2 280 kJ/kg, and 276 kJ/kg that occurred in the boiler system between 2019 and 2021. There was a high energy efficiency of 82% and 80% in the superheater between 2019 and 2021, while 89% in the feed water heater and 73% in the superheater had the same duration. The efficiency of 15% and 21% were the minimum in the pump system between 2019 and 2021, while the turbine had a minimum of 20% and 27% from 2019 to 2021. The highest losses of exergy occurred in the turbine as a result of the irreversibility inherent in the turbine process, corroded turbine blades as a result of wet steam, and low energy delivered to the superheater tubes. It was concluded that the turbine inlet temperature should be increased, more energy delivered to the superheater should be increased, boiler pressure should be increased, and weak feed water heaters should be replaced for better performance of the thermal plant.","PeriodicalId":484452,"journal":{"name":"Journal Of Engineering Research Innovation And Scientific Development","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136359349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents the mathematical modeling of a fuzzy logic-based car parking system. Many people are facing problems parking vehicles in parking lots in most urban cities. The technology of fuzzy-based systems is necessary for all vehicle users to acquire parking slots in cities. A smart parking system helps in obtaining information about available parking spaces, organizing and processing it, and then placing the car in a certain position. The method adopted makes use of a fuzzy-based smart car parking system to develop the usage of small parking spaces for parking lots to allow the parking of vehicles based on their weight. A set of rules was used in the fuzzy logic to control two sets of parking decisions, namely the vehicle entry decision and the inpark decision, by bearing in mind the weight of vehicles and the availability of parking spaces in the parking mall. The results obtained show that the smart car parking system keeps the availability of parking lots in equilibrium, depending on the entry and exit of vehicles. In conclusion, it was discovered that the total number of vehicles granted entry at each time interval depends on the availability of parking lots on each designated floor.
{"title":"Mathematical Modeling of a Fuzzy Logic-Based Car Parking System","authors":"E.U Udo, E.O Agwu, H.U Udeami","doi":"10.61448/jerisd12236","DOIUrl":"https://doi.org/10.61448/jerisd12236","url":null,"abstract":"This paper presents the mathematical modeling of a fuzzy logic-based car parking system. Many people are facing problems parking vehicles in parking lots in most urban cities. The technology of fuzzy-based systems is necessary for all vehicle users to acquire parking slots in cities. A smart parking system helps in obtaining information about available parking spaces, organizing and processing it, and then placing the car in a certain position. The method adopted makes use of a fuzzy-based smart car parking system to develop the usage of small parking spaces for parking lots to allow the parking of vehicles based on their weight. A set of rules was used in the fuzzy logic to control two sets of parking decisions, namely the vehicle entry decision and the inpark decision, by bearing in mind the weight of vehicles and the availability of parking spaces in the parking mall. The results obtained show that the smart car parking system keeps the availability of parking lots in equilibrium, depending on the entry and exit of vehicles. In conclusion, it was discovered that the total number of vehicles granted entry at each time interval depends on the availability of parking lots on each designated floor.","PeriodicalId":484452,"journal":{"name":"Journal Of Engineering Research Innovation And Scientific Development","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Application of GIS and HEC-RAS for flood risk assessment of Ofu River catchment in Nigeria","authors":"M.I Alfa, H.I Owamah, D.B. Adie, B.U. Ovuarume, H.B. Yaroson","doi":"10.61448/jerisd12231","DOIUrl":"https://doi.org/10.61448/jerisd12231","url":null,"abstract":"","PeriodicalId":484452,"journal":{"name":"Journal Of Engineering Research Innovation And Scientific Development","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136359598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Prosper M.O. Ikhazuangbe, Blessing E. Eboibi, Blessing Amabogha, Henry O. Orugba, Samuel E. Agarry
The operation of hydrothermal liquefaction (HTL) of biomass is an enticing technique for the production of biocrude, which can serve as a viable alternative energy source to the growing universal energy demand and the pollution problem caused by fossil fuels. This article reviewed research publications that describe the elemental composition of Chlorella species biomass, biochemical analysis of the feedstock, the effects of the conditions of operating the Chlorella species biomass conversion, hydrothermal liquefaction mechanisms, separation technique, and the products of hydrothermal liquefaction operation. Nevertheless, the modification of the chemical and biochemical compositions of Chlorella specie biomass to yield higherquality biocrude was not researched. Also, other biocrude separation techniques, such as mechanical separation, were not researched after the hydrothermal liquefaction of the Chlorella specie biomass. This information can help in making decisions on the route where research should be directed, towards in-depth study, improvement of yield of the biocrude more than other products, and quality of the derived biocrude by the operation of hydrothermal liquefaction of Chlorella species biomass.
{"title":"A Mini Review of the Potentials of Chlorella Species Microalge for the Production of Biocrude by Hydrothermal Liquefaction (HTL) Operation","authors":"Prosper M.O. Ikhazuangbe, Blessing E. Eboibi, Blessing Amabogha, Henry O. Orugba, Samuel E. Agarry","doi":"10.61448/jerisd12234","DOIUrl":"https://doi.org/10.61448/jerisd12234","url":null,"abstract":"The operation of hydrothermal liquefaction (HTL) of biomass is an enticing technique for the production of biocrude, which can serve as a viable alternative energy source to the growing universal energy demand and the pollution problem caused by fossil fuels. This article reviewed research publications that describe the elemental composition of Chlorella species biomass, biochemical analysis of the feedstock, the effects of the conditions of operating the Chlorella species biomass conversion, hydrothermal liquefaction mechanisms, separation technique, and the products of hydrothermal liquefaction operation. Nevertheless, the modification of the chemical and biochemical compositions of Chlorella specie biomass to yield higherquality biocrude was not researched. Also, other biocrude separation techniques, such as mechanical separation, were not researched after the hydrothermal liquefaction of the Chlorella specie biomass. This information can help in making decisions on the route where research should be directed, towards in-depth study, improvement of yield of the biocrude more than other products, and quality of the derived biocrude by the operation of hydrothermal liquefaction of Chlorella species biomass.","PeriodicalId":484452,"journal":{"name":"Journal Of Engineering Research Innovation And Scientific Development","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136361073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The exergy analysis of the Ogorode steam plant is presented. The aim was to determine and identify the magnitudes and locations of real exergy losses in order to improve plant efficiency. The exergy losses occurred in the various components of the steam plant, such as the boiler, economizer, turbine, super heater, condenser, pump, feed water heater, reheater, and air pre-heater, and these have been calculated using the concepts of availability or available exergy and irreversibility. The temperature and pressure of the plant's running conditions were combined to determine the process irreversibility (exergy losses) and the exergy efficiency of the plant. The exergy losses of the individual components of the plant show that the maximum exergy losses are in steam turbine operation one (STO ) and steam turbine operation two (STO ). STO and STO are 813 kJ/kg, 1 2 1 2 820 kJ/kg, 822 kJ/kg, and 815 kJ/kg that occurred in the turbine between 2019 and 2021, while the minimum exergy losses in STO and STO are 68 kJ/kg, 150 kJ/kg, 1 2 280 kJ/kg, and 276 kJ/kg that occurred in the boiler system between 2019 and 2021. There was a high energy efficiency of 82% and 80% in the superheater between 2019 and 2021, while 89% in the feed water heater and 73% in the superheater had the same duration. The efficiency of 15% and 21% were the minimum in the pump system between 2019 and 2021, while the turbine had a minimum of 20% and 27% from 2019 to 2021. The highest losses of exergy occurred in the turbine as a result of the irreversibility inherent in the turbine process, corroded turbine blades as a result of wet steam, and low energy delivered to the superheater tubes. It was concluded that the turbine inlet temperature should be increased, more energy delivered to the superheater should be increased, boiler pressure should be increased, and weak feed water heaters should be replaced for better performance of the thermal plant.
{"title":"Exergy Audit of Thermodynamic Parameters and Performance Analysis of Ogorode Thermal Power Plant in Delta State, Nigeria.","authors":"Sunday Iweriolor, Anwule Liberty, Blessing Josephine Ossai","doi":"10.61448/jerisd12232","DOIUrl":"https://doi.org/10.61448/jerisd12232","url":null,"abstract":"The exergy analysis of the Ogorode steam plant is presented. The aim was to determine and identify the magnitudes and locations of real exergy losses in order to improve plant efficiency. The exergy losses occurred in the various components of the steam plant, such as the boiler, economizer, turbine, super heater, condenser, pump, feed water heater, reheater, and air pre-heater, and these have been calculated using the concepts of availability or available exergy and irreversibility. The temperature and pressure of the plant's running conditions were combined to determine the process irreversibility (exergy losses) and the exergy efficiency of the plant. The exergy losses of the individual components of the plant show that the maximum exergy losses are in steam turbine operation one (STO ) and steam turbine operation two (STO ). STO and STO are 813 kJ/kg, 1 2 1 2 820 kJ/kg, 822 kJ/kg, and 815 kJ/kg that occurred in the turbine between 2019 and 2021, while the minimum exergy losses in STO and STO are 68 kJ/kg, 150 kJ/kg, 1 2 280 kJ/kg, and 276 kJ/kg that occurred in the boiler system between 2019 and 2021. There was a high energy efficiency of 82% and 80% in the superheater between 2019 and 2021, while 89% in the feed water heater and 73% in the superheater had the same duration. The efficiency of 15% and 21% were the minimum in the pump system between 2019 and 2021, while the turbine had a minimum of 20% and 27% from 2019 to 2021. The highest losses of exergy occurred in the turbine as a result of the irreversibility inherent in the turbine process, corroded turbine blades as a result of wet steam, and low energy delivered to the superheater tubes. It was concluded that the turbine inlet temperature should be increased, more energy delivered to the superheater should be increased, boiler pressure should be increased, and weak feed water heaters should be replaced for better performance of the thermal plant.","PeriodicalId":484452,"journal":{"name":"Journal Of Engineering Research Innovation And Scientific Development","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136360063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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