{"title":"Analysis of Grid Tied Solar Rooftop System: A Case Study on Stars Homes, Sitapaila, Nepal","authors":"Milana Prajapat, Bharat RajPahar, S. Shakya","doi":"10.3126/jacem.v6i0.38319","DOIUrl":"https://doi.org/10.3126/jacem.v6i0.38319","url":null,"abstract":"Most of the nation demand is from the residential sector. Thus, the objective of this paper is to supply the required energy from the same demand point from the solar PV installed in the residential sector that is technically feasible for the given sector. The survey is conveyed on Star Homes(Residential Sector) situated at Sitapaila, Kathmandu. The total potential for installation of PV on useable areas of the rooftop of Stars Homes is calculated to be 253.2 kWp. For the comparative analysis in this paper, the isolated PV system is designed/ analysed using PV-SYST and the grid tied PV including/excluding battery is designed/analysed using SAM(System Advisory Model) software for one of the Type 1 home with annual demand of 2208 kWh. In grid interactive PV system with battery, the peak shaving and backup power during outage is facilitated and also the excess energy is supplied to the grid as well.Theenergy generated from the designed system for type I system with 3.9 kWp grid tied system is 6483 kWh and with 3.9 kWp grid interactive system with battery size of 5.2kWh Lithium Ion is 6454 kWh annually. Similarly, energy generated from designed system of standalone with 1.62 kWp PV and battery size26V, 322Ah system is 3066.6 kWhannually out of which 795kWh is lost annually due to full battery charged conditions. The LCOE considering 25 years life time with 7.5 % loan interest for 15 years for type I with standalone system is 21 cents/kWh, grid tied PV system is 4.94 cents/kWh and with grid tied PV battery system is 6.73 cents/kWh. The peak shaving obtained from the grid tied with battery system compared to the grid tied system is 0.8 kW. The net saving on electricity bill for grid tied system is 516$ and for grid tied system with battery is 526$ annually considering net metering.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129381346","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":"Anthracite as filter Media in Filtration Process","authors":"Aashish Poudel","doi":"10.3126/jacem.v6i0.38272","DOIUrl":"https://doi.org/10.3126/jacem.v6i0.38272","url":null,"abstract":"This research was carried out to see the performance of anthracite as filter media in filtration process. The study also aimed to compare two filter media in terms of turbidity it removed, head loss development with time and filter run with increase in influent turbidity. Two rapid gravity filter(RGF) columns were prepared having internal dimensions of 11x11x290 cm3, one with anthracite and another with sand as filter media. The uniformity coefficient of sand and anthracite of 1.54 and 1.4 were maintained from sieve analysis. Constant Filtration rate of 3m/h was set and other ancillary activities were made same for both filter models. The experiments were repeated seven times with different influent turbidity ranges of 0-25, 25-50, 50-100, 100-150, 150-200, 200-250, 250-300 NTU. Both the Filters were back washed with back washing velocity of 24 m/h, when the terminal head loss of 165.4 cm was obtained. The effluent quality of anthracite obtained was better for all the filter run. The head loss development with time was more for sand filter in all filter runs. The filter run time for sand vary from 150 to 8 hours and for anthracite, it varies from 172 to13 hours from first to seventh filter run.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122448603","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":"Assessment of Hydro-Meteorological Condition of Kathmandu (Nagdhunga)-Naubise-Mugling Road and Bridges","authors":"R. K. Regmi","doi":"10.3126/JACEM.V4I0.23202","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23202","url":null,"abstract":"The Kathmandu (Naghdhunga)-Naubise-Mugling (KNM) road has passed hilly area from Nagdhunga to Naubise (about 13%) after passing Naubise the road alignment passes river valley of the Mahesh Khola and Trishuli River, initially the road alignment follows on left bank of the Mahesh Khola valley upto Galchhi before meeting with Trishuli River. After Galchhi, road alignment follows the left bank of the Trishuli River valley upto Mugling (about 87%). The present study deals with the hydrological condition of the KNM road by analysing the existing hydro-meteorological data, reviewing the reports/documents of the previous studies and visiting the study area. The annual rainfall of the study area is found to be of increasing pattern. It is necessary to construct new crossing structures along with replacing some of the existing culverts in the existing road. Existing side drains are more or less adequate but the capacity might to be increased during he improvement works. In the proposed new alignment 113 cross drains are necessary to construct and proposed side drains will be adequate for passing the design flood. Some of the stretches of the existing road are very close to the river and are vulnerable of being toe cutting and flooding from the river.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129424244","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":"Structurally Similar Sets of Transcendental Entire Function","authors":"Bishnu H Subedi","doi":"10.3126/JACEM.V4I0.23175","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23175","url":null,"abstract":"In complex dynamics, the complex plane is partitioned into invariant subsets. In classical sense, these subsets are of course Fatou set and Julia set. \u0000Rest of the abstract available with the full text","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128329664","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":"Microstrip Compact Twin-Interdigital Steped Impedance Resonator-Based Bandpass Filter for C-Band Applications","authors":"R. Maharjan","doi":"10.3126/JACEM.V4I0.23201","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23201","url":null,"abstract":"This research focuses a new microstrip twin-interdigital type bandpass filter based on stepped impedance resonator (SIR) structure. The proposed structure consists of two slightly different interdigital capacitances within a single SIR resonator that behaves as a bandpass filter (BPF) of center frequency 4.3 GHz with 700 MHz bandwidth at 3 dB pass band. This design is not only subjected to size reduction, but also low pass-band insertion loss and high return loss as well. The Sonnet software tool has been used to design and simulate the microstrip BPF. The fabricated BPF was measured using the Agilent 8510C vector network analyzer (VNA) and achieved the insertion loss of 0.5 dB and the return loss of 26 dB. The measured results were compared with those simulated results which were very close to each other. The fabricated BPF can be used for Cband Applications.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124460612","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":"Balancing Numbers and Application","authors":"Ramesh Gautam","doi":"10.3126/JACEM.V4I0.23203","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23203","url":null,"abstract":" In this paper, we present about origin of Balancing numbers; It!s connection with Triangular, Pells numbers, and Fibonacci numbers; beginning with connections of balancing numbers with other numbers system, It elaborate the different generating functions of balancing numbers. It also include some amazing recurrence relations; and the application of balancing numbers in solving Diophantine equation.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125428216","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":"Critical Success Factors of Project Management in Nepalese Hydropower Projects","authors":"R. Thapa, S. Shrestha","doi":"10.3126/jacem.v4i0.23199","DOIUrl":"https://doi.org/10.3126/jacem.v4i0.23199","url":null,"abstract":"The delay in the construction industry is a global phenomenon and the construction industry in Nepal can!t be the exception. To deliver the project product on time, within the budget, of quality in the safest manner is the goal of project management. Even potentially good projects are failing because of the weak project management performance in Nepalese construction projects. Due to the lack of research based findings in these areas, the new project managers are facing problems about in which areas they need to focus for successful delivery of the project. The purpose of this research is to find out the critical success factors of project management that help the project parties reach their goal as planned in Nepalese hydropower projects. In this study, general success factors of project management were collected from various literatures and the pilot survey, rank them based on relative importance index (RII), and found top seven success factors as critical success factor. Based on the 85 responses from project managers and experts working in hydropower projects in the first stage study, top seven success factors of project management were Effective communication between project team members (S1), Job satisfaction of project team members (S2), Timely decision by client (S3), Competence of the project manager (S4), Effective coordination between stakeholders, public institutions (S5), Competence of the project team members (S6), Proper and timely supervision (S7). ","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133528894","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":"Energy Efficiency Analysis of Software Defined Network in Backbone Transmission Network of Kathmandu Valley of Nepal Telecom","authors":"Jiwan Nyoupane, A. Jha","doi":"10.3126/jacem.v4i0.23181","DOIUrl":"https://doi.org/10.3126/jacem.v4i0.23181","url":null,"abstract":"In the past, research scope of the ICT (Information and Communication Technology) was mainly based on performance and cost. The research community put insufficient effort to the energy consumed by ICTs and their impact on the environment. Current trends, such as increasing electricity costs, reserve limitations, and increasing emissions of carbon dioxide (CO2) are shifting the focus of ICT towards energy-efficient and well-performed solutions. Communication networks designed according to this energy efficiency criteria are called green networks. In this context, SDN architecture can have a significant role in reducing the energy consumption by decoupling control plane to a centralized controller that has global view of all underlying data plane devices. The research will be focused on energy efficiency analysis of Software Defined Network and financial possibilities for migration into SDN using LEAP taking the case study of Nepal Telecom!s backbone transmission network in Kathmandu region.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114959601","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":"Malware Detection and Classification Using Latent Semantic Indexing","authors":"S. Parajuli, S. Shakya","doi":"10.3126/JACEM.V4I0.23205","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23205","url":null,"abstract":"The increasing popularity of smart phones has led to the dramatic growth in mobile malware especially in Android platform. Many aspects of android permission has been studied for malware detection but sufficient attention has not been given to intent. This research work proposes using Latent Semantic Indexing for malware detection and classification with permissions and intents based features. This method analyses the Manifest file of an android application by understanding the risk level of permission and intents and assigning weight score based on their sensitivity. In an experiment conducted using a dataset containing 400 malware samples and 400 normal/benign samples, the results show accuracy of 83.5% using Android Intent against 79.1 % using Android permission. Additionally, experiment on combination of both features results in accuracy of 89.7%. It can be concluded from this research work that dataset with intent based features is able to detect malwares more when compared to permissions based features.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134131134","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 Feeding Rate on the Reduction of Total Volatile Solids and Organic Carbon during Combined Composting and Vermicomposting of Elephant Dung","authors":"Arun Prasad Parajuli, I. M. Amatya, R. Sharma","doi":"10.3126/JACEM.V4I0.23174","DOIUrl":"https://doi.org/10.3126/JACEM.V4I0.23174","url":null,"abstract":"One of the methods of treatment of animal waste to conserve our nature is vermicomposting in which waste-feeding rate is one of the important parameters to be considered. This paper is concerned with studying and analyzing the effect of feeding rate on the reduction of total volatile solid and total organic carbon during vermicomposting of elephant dung. \u0000The raw dung collected from the Central Zoo, Jawalakhel, Nepal was composted in a heap on the open ground after removal of inorganic substances by hand sorting and manually breaking of lumps. Composted dung only after two weeks was feed in the circular earthen flower pots having average diameter of 0.15 m and surface area of 0.017 m2 each with small holes at the bottom. The adult healthy Eiseniafetida with a stocking density of 1.6 kg-worm/m2 with feeding rates of 0.75, 1, 1.5 and 2kg-feed/kg worms/day in the batch basis were used in the separate sets for vermicomposting in moisture content of 70 to 80% at normal room condition in two cycles of eight weeks after two weeks of normal composting in a room. \u0000It was revealed from the experiment that the combined composting and vermicomposting system with feeding rate of 0.75 kg-feed/kg worms/day was more effective in reducing total volatile solids and total organic carbon content to 42.52% and 23.62% respectively after ten weeks.","PeriodicalId":306432,"journal":{"name":"Journal of Advanced College of Engineering and Management","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121453712","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}