{"title":"Electrical load controller for rural micro-hydroelectric systems using a programmable logic controller","authors":"Mahmoud Kabalan, D. Tamir, Pritpal Singh","doi":"10.1109/IHTC.2015.7238042","DOIUrl":"https://doi.org/10.1109/IHTC.2015.7238042","url":null,"abstract":"Micro-hydroelectric systems convert the energy of moving water into electric energy. In rural settings, micro hydroelectric systems are run at full power at all times to avoid the cost of expensive electromechanical controls. That in turn causes the generator to produce its maximum rated power. If the electric energy supply and demand are not matching, the generator eventually fails. Electronic load controllers have been proposed in the literature to better match the demand and supply. In this paper, an electrical load controller is implemented using a programmable logic controller (PLC). PLCs are used in industrial applications and can withstand high levels of dust, dirt and moisture making them very suitable for micro-hydroelectric applications. The proposed controller monitors the frequency of the generator. It will dynamically balance the system power by incrementing or decrementing the power rating of a resistive heating load. The controller was experimentally tested in a lab using a micro-hydroelectric emulator. The emulator includes a 13.8 kW generator, a 10 Hp motor, a motor drive and the PLC controller. The results showed that the PLC controller is a viable load control system for such an application.","PeriodicalId":178502,"journal":{"name":"2015 IEEE Canada International Humanitarian Technology Conference (IHTC2015)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127954432","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":"Holistic masterplanning for resilient mini-grids: A case study methodology analysis applied to rural communities in Palestine","authors":"Miriam Ozanne, M. Brucoli","doi":"10.1109/IHTC.2015.7238063","DOIUrl":"https://doi.org/10.1109/IHTC.2015.7238063","url":null,"abstract":"In emerging economies with limited infrastructure mini-grids offer a cost-effective solution to provide power compared to traditional grid extension. Mini-grids are a microcosm where a number of factors including technical, social, political, environmental and operational aspects closely exist and interact. A successful mini-grid is masterplanned by holistically considering all these factors. Its success can be defined as the contribution of the mini-grid to key target development, sustainability and resilience goals. A case study methodology to review mini-grids in emerging economies is proposed in this paper. For a typical case study, the methodology produces a SWOT assessment for five key analysis sectors and then presents an evaluation of the performance of the mini-grid against the identified target goals. The novelty of the proposed method is in its comprehensive, holistic approach and its focus on resilience as one of the target goals for the mini-grid. Resilience refers to a system's ability to perform, learn, adapt and transform in the event of multiple, complex and uncertain hazards and events such as natural disasters, extreme weather conditions and conflicts. The paper demonstrates that the concept of resilience (and its associated qualities) are highly applicable to complex systems such as mini-grids.","PeriodicalId":178502,"journal":{"name":"2015 IEEE Canada International Humanitarian Technology Conference (IHTC2015)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126044363","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":"Last mile wireless network in rural Nicaraguas","authors":"Mauro J. Sanchirico","doi":"10.1109/IHTC.2015.7238062","DOIUrl":"https://doi.org/10.1109/IHTC.2015.7238062","url":null,"abstract":"Our team designed a wireless local area network to connect Sabana Grande, in Totogalpa, Nicaragua. Sabana Grande is a rural community, where grid power is sparse and internet access is currently non-existent. We identified the need for internet access in Sabana Grande by working with local leaders to organize community-wide meetings where we interviewed resident families. Sabana Grande had not been previously connected because the surrounding rough terrain and sparse infrastructure presented several unique challenges. Our team overcame each of these challenges in our design. We began our design work by working with local contacts to determine power and performance requirements. Using MATLAB to model Fresnel zone interference, we found that surrounding mountains block the line-of-sight from existing access points. So in our design, we included a repeating station overlooking the community. There is no grid power at the repeating site or the receiving sites. So, we have also included solar power solutions. To ensure maintainability, we favored locally available components. After designing the network, performing a feasibility analysis, and conducting follow up interviews with local leaders, we have determined that connecting Sabana Grande will be a practical and impactful project. We are excited to return to install our system in the Summer of 2015.","PeriodicalId":178502,"journal":{"name":"2015 IEEE Canada International Humanitarian Technology Conference (IHTC2015)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133336956","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":"Green cellular networks with renewable energy resources using Stream Control Transmission Protocol (SCTP)","authors":"Abdullah Aljanah, Majed Alowaidi, Richard Yu","doi":"10.1109/IHTC.2015.7238066","DOIUrl":"https://doi.org/10.1109/IHTC.2015.7238066","url":null,"abstract":"Human being is affected by the global warming that makes nations look seriously for green solutions such as green wireless. Such solution, a renewable energy source is used to feed the mobile networks in additional to the conventional energy source. The challenge is the instability of the renewable energy source, so it is needed to adopt a flexible network protocol to maintain service availability by switching to the conventional energy supply and vice versa. In this paper, we propose a new approach to employ the Stream Control Transmission Protocol (SCTP) in a heterogeneous network to provide a stable telecom service. The recovery of telecommunication will be reflected positively on the humanitarian benefit such as conserving in coast and pollution mitigation. The results are presented to show that SCTP can manage the handover between the conventional energy fed base stations and renewable energy fed base stations smoothly. We can infer from the results that SCTP is a promising protocol and it might add value to the humanitarian development for the long term toward the sustainable energy utilization.","PeriodicalId":178502,"journal":{"name":"2015 IEEE Canada International Humanitarian Technology Conference (IHTC2015)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122847281","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}
Chavda Arvindkumar, Nitin Jaiswal, Jenish Tailor, Zhiqiang Liu, Chirag Parihar, Jiehan Zhou, Kevin Holmes, Stuart Dean, Misbah Islam
{"title":"Non-intrusive user-oriented interactive fall-detection system for seniors","authors":"Chavda Arvindkumar, Nitin Jaiswal, Jenish Tailor, Zhiqiang Liu, Chirag Parihar, Jiehan Zhou, Kevin Holmes, Stuart Dean, Misbah Islam","doi":"10.1109/IHTC.2015.7238071","DOIUrl":"https://doi.org/10.1109/IHTC.2015.7238071","url":null,"abstract":"This system enables autonomous and non-intrusive detection of falls and initiates post-fall care activities without burdening seniors by wearing any monitoring device or requiring constant scrutiny from video surveillance. Caregivers can monitor or be alerted of fall events through a Web-based mobile application. This system has the following specific features. (1) It enables to detect and identify different types of motion and fall events by using spectrogram-based algorithm to analyze reflected Doppler signals. (2) The system supplies a user-friendly Web application to configure the system during the initial operation and future software upgrades. (3) The system provides the user with a friendly interactive alert information management system in the context of fall detection.","PeriodicalId":178502,"journal":{"name":"2015 IEEE Canada International Humanitarian Technology Conference (IHTC2015)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127153088","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":"Creating a sustainable humanitarian engineering program","authors":"W. Jordan","doi":"10.1109/IHTC.2015.7238040","DOIUrl":"https://doi.org/10.1109/IHTC.2015.7238040","url":null,"abstract":"At Baylor University we have done engineering service projects in the developing world for about 10 years. As we have assessed both our successes and failures, we realized that to make the projects sustainable, they had to be done with local partners over many years. Our level of engagement with the local people has had a significant impact upon the sustainability of the projects. Our model for how best to do this engagement has changed as we have learned from experience. We are now working in Haiti, partnering with a local non-profit group that has been working in Haiti for 20 years. This helped us earn credibility in the local community. In May 2013 and May 2014 we did solar projects that were well received. We also did projects involving water quality testing and water purification. This work has great promise for being sustainable, for it is working with (not for) the local people and is close enough to the United States so that its costs are more manageable. In addition to creating sustainable projects, we need to develop ways to make the program at our university sustainable. This involves doing several things to help students stay motivated to work in this area. In addition to our trips we have created several cocurricular activities (such as a book club discussing Humanitarian Engineering). We have also made curricular changes, such as introducing an alternative engineering ethics course called Ethics for International Service. We have created a Humanitarian Engineering concentration within our generic engineering major. Students in this concentration will take courses in six topics: people (and culture), economics, development, energy, food/water, and an international service learning class. When coupled with their engineering skills, these courses will help our students be more successful while working in the developing world.","PeriodicalId":178502,"journal":{"name":"2015 IEEE Canada International Humanitarian Technology Conference (IHTC2015)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132630063","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":"Technology, values and sustainable development","authors":"Matthew Weinberg, B. Noureddin","doi":"10.1109/IHTC.2015.7238068","DOIUrl":"https://doi.org/10.1109/IHTC.2015.7238068","url":null,"abstract":"The use of technology is often decoupled from community values and broader questions of individual and collective purpose. How then can individuals and communities be empowered to make meaningful choices about technology? How do we move from being passive technological users or subjects to active agents in constructively shaping patterns of technological development? It is argued that informed technological decision-making, especially participatory practice, lies at the heart of building “resilient communities.”","PeriodicalId":178502,"journal":{"name":"2015 IEEE Canada International Humanitarian Technology Conference (IHTC2015)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128621875","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":"Pre-planting pulsed electric field treatment of potato tubers","authors":"T. Gachovska, N. Armyanov, I. Palov","doi":"10.1109/IHTC.2015.7238064","DOIUrl":"https://doi.org/10.1109/IHTC.2015.7238064","url":null,"abstract":"The work presents a summary of the laboratory analyses on the electric resistance of potato tuber vegetal texture that has been treated by pulsed electric field. Also results of field experiments with potato tubers, which have undergone pulsed electric field treatment prior to planting are shown. The analysis of the results shows that there is a significant dependence between the increase in the electric impedance of the potato tubers' vegetal texture after pulsed electric field treatment and their increased yield. Furthermore, the potato tubers which have been pulsed electric field treated prior to planting had an increase in the yield of 22 - 29% compared to the untreated potato tubers. Identical results are obtained regardless of the axis that the pulsed electric field is applied.","PeriodicalId":178502,"journal":{"name":"2015 IEEE Canada International Humanitarian Technology Conference (IHTC2015)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129813002","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}
S. Núñez, Mahmoud Kabalan, Pritpal Singh, Virginia Moncada
{"title":"Assessment of potential microgrid system comprising renewable energy in La Kasquita Community, Nicaragua","authors":"S. Núñez, Mahmoud Kabalan, Pritpal Singh, Virginia Moncada","doi":"10.1109/IHTC.2015.7238067","DOIUrl":"https://doi.org/10.1109/IHTC.2015.7238067","url":null,"abstract":"Nicaragua has potential renewable energy resources that can be used to bring electricity to rural communities. The government, with the help of NGOs, has implemented micro hydro systems without success due to a non-effective management and business models. To create a sustainable model, an assessment of a potential microgrid system in La Kasquita Community in Nicaragua has been performed. This assessment contains a community overview regarding economic activities, education, and potential household electrical consumption. This paper also outlines the community interest and similar projects that are being developed in the area. An assessment of the hydro, wind, and solar potential has been performed based on the energy requirements of the community. Finally, a model is proposed to meet the energy demand.","PeriodicalId":178502,"journal":{"name":"2015 IEEE Canada International Humanitarian Technology Conference (IHTC2015)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122986299","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":"Eastern Ontario Regional Network","authors":"L. Bradley","doi":"10.1109/IHTC.2015.7238061","DOIUrl":"https://doi.org/10.1109/IHTC.2015.7238061","url":null,"abstract":"The Eastern Ontario Regional Network is a unique Public-Private Partnership focused on delivering Internet connectivity to rural citizens. Over the course of four years the project built out 160 Gigabit Ethernet points of presence, over 1000 km of new fibre and last mile networks delivering 10Mbps or more to residents and businesses.","PeriodicalId":178502,"journal":{"name":"2015 IEEE Canada International Humanitarian Technology Conference (IHTC2015)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128197199","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}