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AquaJolt

1. is Appearsfinished FX Powers multiple appliances f S Ct x Norisktouserorenvironment milain flowmaintenance x Durabe e 22 Testing Plans 1 The assembly will be weighed using a bathroom scale A person will first be weighed and their weight recorded The person will then hold the assembly and step on the scale The weighed will be recorded The difference will then be calculated and converted to a mass The assembly s dimensions will also be measured with a tape measure and compared to the dimensions of a standard door frame This test will ensure that the generator retains its portability 2 The generator should be able to produce an average of 50 watts over a 6 hour period given a flow rate of at least 0 5 m s 3 The assembly should be able to be built in less than one hour by an individual after reading the user manual This test will be performed by four users and the mean time of the installation will be calculated A mean time of less than one hour will be considered a success 4 The generator will be loaded into a pickup truck and transported at least 15 km on dirt roads If it still functions properly then it passes the test of durability Implementation Considerations The apparatus surrounding the generator must be built out of affordable materials that are readily available The target market of this device is for people in very remote areas with limited resources to
2. Power Distribution 40 days Fri 10 14 11 Thu 12 8 11 14 Battery Selection 10days Fri10 14 11 Thu 10 27 11 15 Charge Controller 26 days Fri 10 14 11 Fri 11 18 11 16 Battery Life Indicator 13 days Fri 10 28 11 Tue 11 15 11 17 Power Inverter 14 days Fri 10 14 11 Wed 11 2 11 18 User Interface 14 days Thu11 3 11 Tue11 22 11 19 Waterproof Electrical 12 days Wed Thu 12 8 11 Housing 11 23 11 20 llntegration Check 11 days Tue 11 22 11 Tue 12 6 11 21 llnterim Design Stage Gate O days Thu12 8 11 Thu12 8 11 22 Thanksgiving Break 7 days Sat 11 19 11 Sun 11 27 11 Spring Project Plan bea edad ea gea E e a a Uu nadu Ie i EEE EAE OE a AETA EE EE GE EEE E EAN Parts Assembly Testing 39days Mon1 9 12 Thu 3 1 12 Mechanical Systems 39days Mon1 9 12 Thu3 1 12 ee Generator Testing 14 days Mon1 9 12 Thu 1 26 12 EE EN Gear and Shaft 21 days Mon 1 9 12 Mon 2 6 12 5 Turbine 29days Sat1 14 12 Wed 2 22 12 me Assembly Housing 18 days Tue2 7 12 TRO 3 1 12 Electrical Systems 39 days Mon 1 9 12 Thu3 1 12 8 charge Controller 35days Mon1 9 12 Fri 2 24 12 9 power Inverter 16days Mon 1 9 12 Sat 1 28 12 User Interface 18 days Mon 1 30 12 Wed 2 22 12 Battery Testing 18 days Mon 1 30 12 Wed 2 22 12 Encasement 18 days Mon 1 30 12 Wed 2 22 12 Final Design Stage Gate 0 days Thu 3 1 12 Thu 3 1 12 14 System Integration 21days Fri3 2 12 Fri 3 30 12 15 System Testing amp 14 days Mon 4 2 12 Thu 4 19 12 ba Modif
3. LED will turn on If not a red LED will turn on This will let the user know if it is okay to turn on Input DC Power 0 15 V 0 10 A Output Green or Red LED will be illuminated Switch The switch will allow the user to send select if power is sent to the inverter according to the output of the inverter status indicator Input DC Power 0 15 V 0 10 A User Selection Output If in the on position DC Power 0 15 V 0 10 A If in the off position there is no output Inverter The inverter will take the DC output of the battery and convert it to AC then send it to the user Input DC Power 10 15 V 0 10 A Output AC Power 115 V 0 1 3 A 11 Organization and Management The Aquajolt team consists of two mechanical engineers Taylor Gammon and Joshua Pilgrim and two electrical engineers Mary Samoei and Kendall White Each team member will contribute equally to any efforts of documentation and brainstorming along with being responsible for their individual components of the overall design It is important to note that all members of the team are expected to work with the others to aid them on their own projects as well in order to ensure that each component of the entire design can be successfully integrated at the end of the design process Kendall White Kendall is the project manager and electrical engineer for the Aquajolt project He is responsible for the charge regulator and battery selection Kendall an
4. device that could generate enough electrical energy to power these small devices would be extremely useful Our portable hydroelectric generator seeks to address some of the electrical generation deficiencies faced by many people in developing nations across the world The device will utilize hydroelectric generation methods to power small personal appliances such as cell phones and radios The device would be placed in a moving body of water and be able to safely generate electricity that can be sent directly to the appliance or to a battery for later use The AquaJolt portable hydroelectric generator will allow people with limited resources to power electronic appliances that connect them to the rest of the world in ways that were previously impossible Mission Statement The goal of this project is to design a hydroelectric generator for small scale applications using information from existing designs for large scale use This small scale generator will provide a constant source of electricity in places or situations where reliable power sources are scarce A portable hydroelectric generator could be used in developing countries in order to supply individuals there with a reliable source of electricity Using gasoline powered generators in these settings can be a difficult proposition due to the lack of steady supply lines needed to constantly fuel them This product will also provide energy at a much lower cost than fossil fuel generators The app
5. for it to retain its portability The on shore station will contain a battery that is charged by the generator The battery will be protected from overcharging through a charge regulation circuit An indicator will display the remaining potential of the battery The station is also equipped with an inverter to convert the DC output of the battery to 120VAC which will then be connected to an outlet Another indicator will show whether there is sufficient power being supplied to the inverter from it to be run as intended Level 1 Block Diagram Water Turning Water Bed Mechanism 0 5 m s Flotation and Waterproof Housing Green Or Red LED e pr er pr perre 115 VAC 0 13A AGEk Housing SA es B E Percent of Battery Charged User Selection D ze A IZ Level 2 Block Diagram Turning Mechanism e Debris Guard Turbine Water D ee 5 m s Gearing 0 600 RPM 0 RPMI oy SDE IT 0 625 N m 625 N m D Je VDC O 6A DC to BC Step Down Voltage Monitor Level 2 Block Diagram User Selection 10 15 ND D 10A Battery Status D 12VDG Or JOA Indicator Waterproof Electrical Housing Inverter Status een or l s b ez ez zz d Indicator Red LED On Off Switch Inwerter 115 VAC Dz LA Remaining Functional Decomposition of Blocks Floatation Mechanism The buoyancy system keeps the turning mechanism at the optimum depth in the water about 10 below the surface of the moving body of
6. water in order to take advantage of the maximum flow rate in the river This is defined as the optimum depth due to the fastest flow of water being found at this point The buoyancy will be enough to keep at least 100 kg 220 Ibs afloat To create a buoyancy force able to keep much weight afloat 0 1 m of water must be displaced This value for the weight of the device is based off of the worst case scenario of the weight specifications listed above For our flotation mechanism we anticipate a need for a river depth of at least 0 6 m Waterproof Housing This keeps the sensitive electrical components of the generator safe from the spray of the river Debris Guard This device serves to keep any wildlife or floating material in the water from hampering the movement of the wheel Waterproof Electrical Housing This section houses all of the electrical components of the system circuits battery and inverter It has a user interface that contains the LED outputs of the Battery Status Indicator and the Inverter Status Indicator as well as switch that the user can flip to allow power to run to the inverter It also has a standard AC outlet so that a device can be plugged it The housing will protect the components from the elements and also keep them safe during normal use and transport The section will be placed on the shore Turning Mechanism This part of the device will be placed in a moving body of water and will function by converti
7. 10 14 11 18 10 14 11 2 11 3 11 22 11 23 12 8 11 3 11 22 12 Team members ALL ALL ALL ALL ALL ALL ALL T J T J K M K M 8 9 ID 1 1 1 11 1 12 1 13 1 14 1 2 1 21 1 22 1 23 1 24 1 25 Integration Check Interim Design Stage gate Task Name Parts Assembly Testing Mechanical Systems Generator Testing Gear and Shaft Turbine Assembly Housing Electrical Systems Charge Regulator Power Inverter User Interface Battery Testing Encasement Final Design Stage gate System Integration System Testing and Modification The electrical and mechanical subsystems are integrated to check for interference Teacher evaluation Description The parts for all subsystems are assembled and tested The mechanical subsystems are constructed The generator s output for different RPM is tested The gear and shaft is constructed and the ratio tested The turbine is tested in various flow rates The waterproof chamber for the generator is constructed All electrical subsystems are constructed and tested The charge regulator is completed and tested The power inverter is completed and tested The user interface is completed and tested The battery is installed and tested The waterproof on shore charging station is constructed Teacher evaluation The completed subsystems are combined Troubleshooting and minor design changes ar
8. Amazon 1 week http www amazon com gp product BOO2QGVWBW 50 Inverter The Inverter Store 1 week http www theinverterstore com the inverter store product php model pwrinv400w top rgb Wire Al lied Wire and http www awcwire com Part aspx code 657142H8J13 Cable http www lowes com pd_158883 1571 1595 Electrical W3PKCC4_ PL 1 amp productld 3127865 Outlet Sprockets and Mcmaster Carr 2 weeks http www mcmaster com frroller chain 50 ch s sprockets ef5diw ain Turbine Various 150 Materials PCB PCBnet http www pcbnet com newcustomeroffer asp AO Flotation 130 Miscellaneous 250 Total 1030 15 Fall and Spring Gantt Charts Fall Project Plan d Name Duration Stan Finish September _ _ October1 Mester Decem 8 21 9 4 9 18 10 2 10 16 10 30 11 13 11 27 1 Project Selection 12 days Mon 8 22 11 Tue 9 6 11 2 Project Launch 16 days Wed 9 7 11 Wed9 28 11 3 Project Launch Stage Gate 0 days Sat 9 24 11 Sat9 24 11 d 9 24 4 Design Selection 4 days Thu 9 29 11 Tue 10 4 11 5 system Design 11days Thu9 29 11 Thu 10 13 11 6 Preliminary Design Stage Gate 0 days Thu 10 13 11 Thu 10 13 11 10 13 7 Detail Design 40 days Fri 10 14 11 Thu 12 8 11 8 Generator Selection 14 days Fri 10 14 11 Wed 11 2 11 9 Turning Mechanism 40 days Fri 10 14 11 Thu 12 8 11 10 Turbine Design 24 days Fri 10 14 11 Wed11 16 1 11 Gear Design 15 days Fri 10 14 11 Thu 11 3 11 12 Housing Design 30 days Fri 10 14 11 Thu 11 24 11 13
9. AquajJolt System Design and Project Plan Taylor Gammon Josh Pilgrim Mary Sameoi Kendall White 10 12 2011 Table of Contents Backe TOUNO T 2 SAU eI OR OVETVIEW etatik ieee RAO HR POR EC FE FA Nee Mre errean 2 E Roel dib Le A _ 4 Funcional Decomposition DI elea 7 orean Te Ke HG ce abiada eea Une eam cnn Om OI Oo 11 Work Breakdown SU ucure Eall 201 MA 12 Work Breakdown Structure Spring OUA 13 Salida ge nin GY ig et l a o a E A A Y YN YR A RR CHA RO Y EP YP FO YA POT AF YR RF YO RH RH 15 NEUWOCK elea dela 16 Appendix A Requirement Specifications ccccssccssscsssssccusscsssesccuscousnesceuscousnesetuscoustesetsscoussesetssceusss 17 Appendix B Sample Calculations and Generator Specifications ss 23 Background Our world is becoming increasingly mobile As cellular phones continue to increase in versatility and range a demand for a reliable source of power in remote locations continues to grow No group is more interested for decentralized energy than are developing countries As of 2009 over 1 4 billion people primarily living in Africa and Asia have little to no access to electricity Even if the people of these nations have been able to procure some sort of conventional generator they soon find themselves forced to rely on fossil fuels if they desire an electricity source These ge
10. In addition it also keeps the battery from returning charge to the generator when insufficient torque is applied to the wheel Input DC Power From DC to DC Step down 10 15 V 0 3 A DC Power From Voltage Monitor 0 5 V 0 35 mA Output DC Power 10 15 V 0 3 A Voltage Monitor The voltage monitor checks the voltage on the battery to make sure it does not raise above the specified level for the battery 12 V If the voltage on the battery is lower than 12 V it sends a high signal out to the charge regulator to allow the voltage to pass through Once the voltage on the battery rises above 12 V the Voltage Monitor sends out a low signal to the Charge Regulator to stop voltage from passing through Input DC Power 0 12 V 0 10 A Output DC Power 0 5 V 0 35 mA Battery The battery will store the power produced by the generator Input DC Power 10 15 V 0 3 A Output DC power 0 12 V 0 10 A Battery Status Indicator The charge status indicator will show how much voltage is left on the battery as a percentage Input DC Power 0 12 V 0 10 A 10 Output Remaining voltage on the battery shown in a percentage through a range of LEDs sample picture shown in Appendix B Inverter Status Indicator The inverter status indicator will determine if the inverter is being supplied sufficient DC voltage to operate 10 15 VDC It will use comparators to determine if the voltage is within the specified range If it is a green
11. aratus is intended to be a temporary source of power and the portability of the device allows users to transport it easily from one location to another Deliverables 1 Portable hydroelectric generator 2 System Specifications 3 Test results 4 User Manual 5 Final Report Operation The portable hydroelectric generator will be placed in a moving body of water and secured so that it 19 does not float away Once installed the device will convert the kinetic energy of the moving water into usable electrical energy through a generator The user will be able to choose whether the energy will be sent directly through an inverter to the appliance to be charged or if the energy will be stored ina battery to be used at a later time If the user wants to charge an appliance directly the power will be inverted and sent to a standard AC 120 VAC 60Hz outlet where a single appliance may be plugged in The power generation will be monitored to verify the state of the output energy Customer Needs d Lightweight Packable and portable Easy to install Low noise level Appears finished Powers multiple appliances No risk to user or environment 8 9 20 Low maintenance Durable Technical Specifications 10 Power output for multiple appliances supplies at a minimum 50W at 120VAC to a standard outlet Lightweight Less than 25 kg or can be easily separated into at most four pieces that are less t
12. ased is chosen based on wattage desired and available torque The turning mechanism s subsystems are designed The main turbine is designed based on feasibility and torque The gears are designed based on the desired RPM increase to the generator The waterproof housing for the generator is designed The electrical subsystems are chosen A battery is chosen based on expected wattage output and storage needed The charge regulator meant to regulate the generator is designed The power inverter is chosen A user interface is designed The on shore housing is chosen The battery life indicator is designed Deliverables Main project idea Choices of subsystems Project launch document Sketches options alternatives Finalized sketch System Design document Block diagram Specifications reasoning product number Simulations and calculations supporting final design Comparison of various turbine designs Rationale for gearing ratio based on generator torque and RPM input Design CAD drawings Block diagram Specifications reasoning product number Multisim schematic Specification product number and specification Multisim schematic CAD drawings Multisim schematic Start stop 8 22 9 6 9 7 9 28 9 24 9 24 9 29 10 4 9 29 10 13 10 13 10 13 10 14 12 8 10 14 11 2 10 14 12 8 10 14 11 16 10 14 11 3 10 14 11 24 10 14 12 8 10 14 10 27
13. being sent to the battery and to the inverter Since these both are 12 V systems they need the voltage to be in this range This was found by examining many batteries and inverters specifications online The output current 0 3 A was determined based on the output of a buck boost 25 converter we have considered using The LM5118 Wide Range Buck Boost Controller is appealing to us because it allows for a very wide range of voltage inputs which fits with the outputs of the generators we are considering The maximum output current of this controller as found in the data sheet is 3 A Voltage Monitor The output power range for the voltage monitor was determined based on the output of a voltage monitor IC we are considering using The MAX8212 Voltage Monitor can be used to detect voltage levels The output levels specified from the data sheet were a 35 mA output at 5 V Battery We chose a 12 V battery because this meets the requirements of standard DC to AC inverters We chose a 10 A current for the battery because this will meet the 50 W requirement set forth in the technical specifications 12 2 10 120 Watts This power level was chosen so that it would not only meet our minimum power requirements but also could handle a higher power level in the event that we generate more power a http www national com ds LM LM5118 pdf http datasheets maxim ic com en ds MAX8211 MAX8212 pdf 26 Inverter The values for the ou
14. d Mary will work together to design the waterproof on shore charging station Taylor Gammon Taylor is the mechanical engineer working with Joshua concerning the turbine design and the generator housing design He is individually responsible for the gear design Joshua Pilgrim Joshua is the mechanical engineer working with Taylor concerning the turbine design and the generator housing design He is individually responsible for the generator selection Mary Samoei Mary is the electrical engineer responsible for the selection of the inverter and the design of the user interface Kendall and Mary will work together to design the waterproof on shore charging station 7 1 7 2 7 21 7 22 7 23 7 3 7 31 7 32 7 33 7 34 7 35 7 36 Task Name Project Selection Project Launch Project Launch Stage gate Design Selection System Design Preliminary Design Stage gate Detail Design Generator Selection Turning Mechanism Turbine Design Gear Design Housing Design Power Distribution Battery Selection Charge Regulator Power Inverter User Interface Waterproof Housing Battery Life Indicator Work Breakdown Structure Fall 2011 Description Team chooses a project The specifications of the project are chosen Teacher evaluation Choose the overarching design for the project Main subsystems are chosen Teacher evaluation Components of subsystems are designed A generator b
15. e Finalized design plan Interim Design Document Work Breakdown Structure Spring 2012 Deliverables An initial model to troubleshoot Working subsystems that meet specifications Results interpretations Results interpretations Results interpretations Working component that meets specifications Working subsystems that meet specifications Working component that meets specifications Results interpretations Results interpretations Results interpretations Working component that meets specifications A completed device to troubleshoot A more streamlined design 11 23 12 7 12 8 12 8 Start stop 1 9 3 1 1 9 3 1 1 9 1 26 1 9 2 6 1 14 2 22 2 7 3 1 1 9 3 1 1 9 2 25 1 9 1 28 1 30 2 22 1 30 2 22 1 30 2 22 3 1 3 1 3 2 3 30 4 2 4 19 13 ALL Team members ALL ALL T J d ALL ALL ALL 14 made 5 Acceptance Tests The ABET tests are N A 4 19 4 19 ALL Complete completed 6 User s Manual The user s manual is Document 4 5 4 24 ALL written 7 Final Report The final report is written Document 3 27 4 24 ALL 8 Final Presentation The presentation of the Final presentation final 4 26 4 26 ALL fully completed document functional device is made Item Prospective Time of Provider Estimated Cost Vendor Delivery S Generator Presto Wind 1 week http www prestowind com page 1mag3 Online_Wind 270 mill_Store html Battery
16. expensive manufacturing processes Lightweight materials such as wood aluminum and plastics are all plausible options for constructing the device The generator itself must be purchased separately not constructed by the product developers of this device The construction should not require highly advanced manufacturing skills in order to assemble 23 Appendix B Sample Calculations and Generator Specifications RPM We assume a wheel diameter of 1 m and a flow rate of 5 m s RPM can be found as follows _ Bl60 5 260 1 96 Since Poncelet blades produce an efficiency of approximately 60 this number is further reduced 96 710 6 Torque l 2 Torque is calculated based on an assumed radius of 0 5 m and a cross sectional area of 0 5 m It is found by the following formula A A A 0 5 1000 20 5 6250 24 Gear Ratio Transmitted torque and RPM through a gear set is governed by the gear ratio Shown below are the calculations involved in finding the output torque and RPM through a 10 1 gear ratio given an input torque of 6250 N m at 60 RPM In this formula the variable refers to the number of teeth on the first gear in the set As this is a 10 1 ratio set will always equal 0 1 So the calculations continue 6250 EDL 625 607 0 1 600 DC To DC Step Down The input power range was determined as shown above The output needs to between 10 and 15 V because this is
17. han 25 kg each Portable Fits through all standard doorways Easy to install Capable of being installed within one hour by a single person after reading the user manual Appears Finished No dangerously exposed moving parts or wires Durable Able to withstand transport Low Noise Level Produces less than 100 dB when operating from a distance of two meters Very low maintenance Does not require adjustment or handling in a 6 hour period No Risk to User or Environment Electrical components are water proofed shielded there are no sharp edges exposed does not harm wildlife and contains no toxic materials Functions in most rivers Requires a water velocity of at least 0 5 m s and a minimum depth of 0 6 m 21 Needs Metrics Matrix p9129104d si uisiueuUo9JN UOISIAJodns 3ue3jsuo2o oJinboJ JOU s oq pajoosdsaj eM S3U9UOdulo9 1621179919 UE SJuouJoo dieys ON JoMOd JO MOS 3se9J 16 sojeJouoc rsulules jei2ods ou seuinboM uonejje3sui pue uoneM40dsueJ 3uonboJ4J BAIAINS ue SUIA posodXxo Jo syed SUIAOW posodxe ON 3ul3e49do o iUJ punos Jo gp OO ueu ssej o2npoJd II JONpOId au suol3j2os pj imun uo sdeJ3s JO sejpueu ssoessod III 32npoud ou JNOY euo UIYUM jenueuJ Jasn y 3ulpeoJ Jaye UosJod ajsuls e Aq pojje1 sul 3ulog Jo ajqede7 U2e9 ZZ ueu DIOW ou LUZIO 2y sued OU Pajquiassesip og ue nu E mm ee E palable CT x da 1 CT d e do fEasytoinstal d TT 7117 flownoiselevel
18. ication a Tests 0 days Thu 4 19 12 Thu 4 19 12 Complete 17 User s Manual 14 days Thu 4 5 12 Tue 4 24 12 Final Report 31 days Tue3 27 12 Tue 4 24 12 19 Final Presentation O days Thu 4 26 12 Thu 4 26 12 8 26 20 Spring Break 7 days Sat 3 3 12 Sun3 11 12 Engineering Showcase O days Sun 4 29 12 Sun 4 29 12 4 29 Network Diagrams o _ _ ouraton Mechanical Network Diagram Fall Generator Selection System Design Electrical 0 EZE Mechanical Network Diagram Spring Critical Path 16 17 Appendix A Requirement Specifications Portable Hydroelectric Generator Taylor Gammon Joshua Pilgrim Mary Samoei Kendall White Overview In today s world electricity is a vital resource that it utilized in almost every nation Electricity powers devices that many people cannot seem to live without such as computers cell phones lights refrigerators and countless other products that define life in the twenty first century Electrical power generation has historically depended heavily on the consumption of fossil fuels However this dependence on fossil fuels has created a false carrying capacity for the globe allowing humans to enjoy a higher standard of living than the earth can sustainably provide Fossil fuels are a limited resource and we consume them at a faster rate than the world can produce them As fossil fuels continue to increase in price and decrease in availability sources of a
19. lternate energy are becoming critical for supplying all our energy needs Humanity has tried to harness the sun the wind even the movement of the tides in order to capitalize on nature s perpetual sources of energy These alternative energy generation methods are based on renewable energy sources and have significantly less negative environmental impact than fossil fuels One common form of energy that has been harnessed since the Hellenistic period is the force of a flowing body of water Unlike solar or wind generation methods which depend heavily on ideal weather conditions hydroelectric generation depends on a reliably consistent source of renewable energy Hydroelectricity is an environmentally friendly perpetual source of energy that has less risk than fossil fuel or nuclear power generation Many developing nations do not have the capability of generating power on a large enough scale to deliver a constant source of electricity to each home Most homes in those nations are not 18 connected to an electrical grid like we are accustomed to in the United States However people in this part of the world still own small electrical appliances such as cell phones and radios With the increasing technological advancements in the cell phone industry phones are capable of connecting these people to the rest of the world in a way that was previously impossible However it is difficult for them to find places to charge these devices consistently A
20. nerators possess a number of inherent flaws that limit their usefulness such as the cost and weight involved in transporting fuel long distances over potentially difficult terrain The obvious solution to these issues is to use a generator that is powered by a renewable energy source such as solar wind or hydro power However solar and wind power both rely heavily upon weather conditions of a given area in order to produce a usable amount of electricity Hydro power possesses a unique advantage if the body of water is chosen judiciously hydro power can be considered more or less a constant System Overview Aquajolt the portable hydroelectric generator would answer all of these problems Since the residents of this country possess little in the way of what most Westerners would consider large appliances the power output of such a device would not have to be very large Even 50 watts would be enough to power the small devices that are common in such areas Aquajolt will consist of a turbine attached to a floating platform and anchored in a moving body of water The turbine will convert the kinetic energy of the water into rotational energy which is translated through a gear system to a generator The generator then supplies power to an on shore charging station via a waterproof cable http www iea org weo electricity asp The device can be disassembled into at most four parts with each part weighing no more than 25 kg 55 Ibs in order
21. ng the kinetic energy of the water into a usable rom and torque The RPM and torques are calculated using a wheel diameter of 1 m and a cross sectional river area of 0 5 m and includes a 60 efficiency loss from velocity of the water to velocity of the wheel Sample calculations for torque and RPM can be found in Appendix B Input Water 0 5 m s Output 0 60 RPM 0 6250 N m water 0 5 m s Gear System The torque and rpm of the turning mechanism will be sent through a system of gears to increase RPM at the cost of torque We anticipate at least a 10 1 gearing ratio Input 0 60 RPM 0 6250 N m Output 0 600 RPM 625 N m Output Shaft The shaft transmits the altered torque and rpm to the generator The DC power generated is taken from the specifications of the M 12 generator at 600 RPM The graph used can be found in Appendix B Input 0 600 RPM 625 N m Output DC power 0 78 V 0 6 A DC to DC Step Down This section will take the DC power from the generator and drop it down into a range that is acceptable for the battery and the inverter The calculations and reasoning behind the values listed below can be found in Appendix B Input DC Power 0 78 V 0 6A Output DC Power 10 15 V 0 3 A Charge Regulator This device will prevent the battery from becoming overcharged It allows power to pass through until the battery is fully charged Once it is charged the charge regulator stops the battery from charging
22. tput of the inverter were based upon the maximum inputs that we expect the inverter to receive The output voltage was chosen to be 115 VAC because this is the average of standard output range 110 120 VAC Since these are basic calculation a 100 efficiency was assumed 152110 150 Watts 150 115 150 115 13A 27 Generator Output The output of the generator was based on the following chart provided by the producers of the M 12 Light Wind Generator M 12 Power Output 200 GIOTTO 22510 160 140 120 100 Amps BU A C Voltage 60 Voltage 40 ZU tr STER p a HHH ZETO BO 200 400 600 BOD 1000 1200 1400 1600 1800 50 OD 300 500 700 9200 1100 1300 1500 1700 iii edit ZA RPM Field Test Fig 1 Manufacturer s Specifications For M 12 Generator As the chart shows at an RPM of 600 the unloaded generator produces 6 A and 78 V 28 Battery Status Indicator d ei ri ei ae Fig 2 Sample Display of the Battery Status Indicator The battery status indicator displays how much percent of the battery s voltage is left on the battery If the voltage remaining is between 10 and 20 the first LED is illuminated If it then goes above 20 but is less than 30 the 10 and 20 LEDs are illuminated and so on and so forth

AquaJolt

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