The document summarizes a study on developing vessels that can travel at practical speeds using only renewable energy sources. It discusses Planet Solar, the first solar-powered vessel to circumnavigate the globe. While Planet Solar proved the concept, its average speed was only 3-4 knots. The study explores using higher efficiency solar technologies like HCPV and integrating wind power to allow for faster speeds suitable for commercial use. It proposes a hybrid solar-wind vessel design with a 100kW HCPV solar array and advanced batteries that could achieve fuel-free travel for vessels up to 200 feet long.
This document discusses technologies for achieving perpetual mobility and sustainment on water using solar and wind power. It summarizes recent developments in solar photovoltaic and concentrated photovoltaic technologies that have increased efficiency. Concentrated photovoltaics in particular allow for a reduction in the size of solar panels needed while maintaining or increasing power output. The document also proposes using these solar technologies together with battery storage, hydrogen fuel cells, and small wind turbines to create systems capable of powering vessels indefinitely without fossil fuels.
This document discusses new technologies for perpetual mobility and sustainment on water using renewable energy sources. It begins by introducing the author and their background and interest in oceans. It then discusses current ideas for beating the cost of mobility at sea through solar power and wind technologies like ducted wind turbines, airborne wind turbines, and sky sails. New battery technologies are presented as solutions for energy storage, including liquid metal batteries. The document argues that selecting fossil fuels over electricity was a costly mistake and reviews solar photovoltaic and concentrating photovoltaic technologies. It analyzes the impact of improving solar cell efficiencies on reducing the size of solar catchment areas. The document concludes by outlining the key elements needed for achieving total
La lepra es una enfermedad infecciosa crónica causada por Mycobacterium leprae que afecta principalmente la piel y los nervios. Se clasifica en dos tipos principales, lepromatoso y tuberculoide, dependiendo de la respuesta inmune del huésped. Puede causar daño permanente a los nervios si no se trata, y se transmite principalmente a través del contacto directo con una persona infectada.
The document summarizes a study on developing vessels that can travel at practical speeds using only renewable energy sources. It discusses Planet Solar, the first solar-powered vessel to circumnavigate the globe, and identifies areas for improvement. The study evaluates different technology options for power generation on a hypothetical hybrid solar-wind vessel, including high-concentration photovoltaics and wind power. It determines that a vessel with a 100 kW HCPV solar array and advanced batteries could achieve perpetual mobility without fossil fuels.
The document summarizes a study on developing vessels that can travel at practical speeds using only renewable energy sources. It discusses Planet Solar, the first solar-powered vessel to circumnavigate the globe. While Planet Solar proved the concept, its average speed was only 3-4 knots. The study explores using higher efficiency solar technologies like HCPV and integrating wind power to allow for faster speeds suitable for commercial use. It proposes a hybrid solar-wind vessel design with a 100kW HCPV solar array and advanced batteries that could achieve fuel-free travel for vessels up to 200 feet long.
This document discusses technologies for achieving perpetual mobility and sustainment on water using solar and wind power. It summarizes recent developments in solar photovoltaic and concentrated photovoltaic technologies that have increased efficiency. Concentrated photovoltaics in particular allow for a reduction in the size of solar panels needed while maintaining or increasing power output. The document also proposes using these solar technologies together with battery storage, hydrogen fuel cells, and small wind turbines to create systems capable of powering vessels indefinitely without fossil fuels.
This document discusses new technologies for perpetual mobility and sustainment on water using renewable energy sources. It begins by introducing the author and their background and interest in oceans. It then discusses current ideas for beating the cost of mobility at sea through solar power and wind technologies like ducted wind turbines, airborne wind turbines, and sky sails. New battery technologies are presented as solutions for energy storage, including liquid metal batteries. The document argues that selecting fossil fuels over electricity was a costly mistake and reviews solar photovoltaic and concentrating photovoltaic technologies. It analyzes the impact of improving solar cell efficiencies on reducing the size of solar catchment areas. The document concludes by outlining the key elements needed for achieving total
La lepra es una enfermedad infecciosa crónica causada por Mycobacterium leprae que afecta principalmente la piel y los nervios. Se clasifica en dos tipos principales, lepromatoso y tuberculoide, dependiendo de la respuesta inmune del huésped. Puede causar daño permanente a los nervios si no se trata, y se transmite principalmente a través del contacto directo con una persona infectada.
The document summarizes a study on developing vessels that can travel at practical speeds using only renewable energy sources. It discusses Planet Solar, the first solar-powered vessel to circumnavigate the globe, and identifies areas for improvement. The study evaluates different technology options for power generation on a hypothetical hybrid solar-wind vessel, including high-concentration photovoltaics and wind power. It determines that a vessel with a 100 kW HCPV solar array and advanced batteries could achieve perpetual mobility without fossil fuels.
This document summarizes a study analyzing the feasibility of using solar and wind power to power vessels at practical speeds without fossil fuels. It discusses Planet Solar, the first solar-powered vessel to circumnavigate the globe between 2009-2012. While Planet Solar proved solar power can move vessels, its average speed was only 3-4 knots. The study explores technology improvements like higher efficiency solar panels and energy storage to enable faster, more practical speeds for commercial use at zero fuel costs. These include concepts like a hybrid solar/hydrogen vessel.
Facebook Garage / Open Graph PresentationIMA_School
The document provides an overview of building apps using the Open Graph platform on Facebook. It discusses defining actions and objects, publishing actions, adding references between objects, tagging locations, focusing on mobile, and enabling translations for apps. The Open Graph allows apps to integrate with Facebook's distribution and achieve greater reach through stories and aggregations across News Feed, Ticker, and Timeline.
Broadcasting to the masses or building communitiesnermal51
This document analyzes political parties' use of websites and social media during recent elections in Germany, the UK, Poland, and France. It finds that parties have adopted a more interactive approach online, moving beyond just broadcasting messages. Parties now focus on persuasion and mobilizing existing supporters through their websites and social media platforms like Twitter and Facebook. Larger, more popular parties tend to have larger online followings and communities compared to smaller parties. The size of a party's online following on social media seems correlated with its overall level of electoral support.
This document summarizes literature on the evaluation of steam jet ejectors. It discusses their use in refrigeration, air conditioning, and other industries. Semi-empirical models are developed to design and rate ejectors, giving the entrainment ratio as a function of expansion and pressure ratios. Correlations are also developed for motive steam pressure and area ratios as functions of operating pressures and entrainment ratio. The models are based on manufacturer and experimental data and allow full ejector design based on operating conditions. Optimum operation occurs at critical conditions, and higher entrainment ratios result from lower boiler/condenser pressures and higher evaporator temperatures. Variable position nozzles and multi-ejector systems improve performance.
This document discusses technologies for powering vessels using renewable energy sources like solar and wind. It summarizes recent solar-powered circumnavigations and the advantages of concentrated photovoltaics (CPV) for generating electricity from solar power. CPV could allow for a 70% reduction in the size of solar panels needed. The document also discusses using solar power to produce hydrogen fuel for fuel cells, vertical axis wind turbines, towing kites to reduce fuel usage, and new DC electric motor and micro-grid technologies. It proposes a prototype hybrid solar/wind power system for a 80' x 20' vessel to demonstrate these technologies.
This document summarizes a study analyzing the feasibility of using solar and wind power to power vessels at practical speeds without fossil fuels. It discusses Planet Solar, the first solar-powered vessel to circumnavigate the globe between 2009-2012. While Planet Solar proved solar power can move vessels, its average speed was only 3-4 knots. The study explores technology improvements like higher efficiency solar panels and energy storage to enable faster, more practical speeds for commercial use at zero fuel costs. These include concepts like a hybrid solar/hydrogen vessel.
Facebook Garage / Open Graph PresentationIMA_School
The document provides an overview of building apps using the Open Graph platform on Facebook. It discusses defining actions and objects, publishing actions, adding references between objects, tagging locations, focusing on mobile, and enabling translations for apps. The Open Graph allows apps to integrate with Facebook's distribution and achieve greater reach through stories and aggregations across News Feed, Ticker, and Timeline.
Broadcasting to the masses or building communitiesnermal51
This document analyzes political parties' use of websites and social media during recent elections in Germany, the UK, Poland, and France. It finds that parties have adopted a more interactive approach online, moving beyond just broadcasting messages. Parties now focus on persuasion and mobilizing existing supporters through their websites and social media platforms like Twitter and Facebook. Larger, more popular parties tend to have larger online followings and communities compared to smaller parties. The size of a party's online following on social media seems correlated with its overall level of electoral support.
This document summarizes literature on the evaluation of steam jet ejectors. It discusses their use in refrigeration, air conditioning, and other industries. Semi-empirical models are developed to design and rate ejectors, giving the entrainment ratio as a function of expansion and pressure ratios. Correlations are also developed for motive steam pressure and area ratios as functions of operating pressures and entrainment ratio. The models are based on manufacturer and experimental data and allow full ejector design based on operating conditions. Optimum operation occurs at critical conditions, and higher entrainment ratios result from lower boiler/condenser pressures and higher evaporator temperatures. Variable position nozzles and multi-ejector systems improve performance.
This document discusses technologies for powering vessels using renewable energy sources like solar and wind. It summarizes recent solar-powered circumnavigations and the advantages of concentrated photovoltaics (CPV) for generating electricity from solar power. CPV could allow for a 70% reduction in the size of solar panels needed. The document also discusses using solar power to produce hydrogen fuel for fuel cells, vertical axis wind turbines, towing kites to reduce fuel usage, and new DC electric motor and micro-grid technologies. It proposes a prototype hybrid solar/wind power system for a 80' x 20' vessel to demonstrate these technologies.