Misplaced Pages

#857142

64-397: This model is considered high-end, professional, or prosumer because of its price, its feature set, and its high-sensitivity image sensor. Its 10-megapixel image sensor is larger than typical sensors found in point-and-shoot cameras. This, along with the advanced image stabilization system, allows for sharp images in lower light scenarios, at an ISO of up to 3,200. The S95 is similar to

128-451: A CHP gas engine , where the waste heat from the engine is conveniently used for heating the digester; cooking; space heating; water heating ; and process heating. If compressed, it can replace compressed natural gas for use in vehicles, where it can fuel an internal combustion engine or fuel cells and is a much more effective displacer of carbon dioxide than the normal use in on-site CHP plants. Raw biogas produced from digestion

192-574: A fuel ; it can be used in fuel cells and for heating purpose, such as in cooking. It can also be used in a gas engine to convert the energy in the gas into electricity and heat. After removal of carbon dioxide and hydrogen sulfide it can be compressed in the same way as natural gas and used to power motor vehicles . In the United Kingdom, for example, biogas is estimated to have the potential to replace around 17% of vehicle fuel. It qualifies for renewable energy subsidies in some parts of

256-453: A 1000-litre digester using psychrophiles harvested from "mud from a frozen lake in Alaska" has produced 200–300 liters of methane per day, about 20–30% of the output from digesters in warmer climates. The air pollution produced by biogas is similar to that of natural gas as when methane (a major constituent of biogas) is ignited for its usage as an energy source, Carbon dioxide

320-461: A Nut detailed the biogas production process from pig manure and showed how it fueled a custom-adapted combustion engine. In 2007, an estimated 12,000 vehicles were being fueled with upgraded biogas worldwide, mostly in Europe. Biogas is part of the wet gas and condensing gas (or air) category that includes mist or fog in the gas stream. The mist or fog is predominately water vapor that condenses on

384-484: A compact form factor (with a similar-sized body), such as the Panasonic Lumix DMC-GF1 , Olympus PEN E-P1 / E-P2 , and Sony Alpha NEX-3 . MILCs differ however in being significantly larger (with lens attached), and significantly higher-end, featuring much larger sensors and interchangeable lenses. prosumer#Etymology 2 A prosumer is an individual who both consumes and produces . The term

448-513: A faecal sludge treatment plant. Faecal sludge can also be co-treated with organic solid waste in composting or in an anaerobic digestion system. Biogas can be generated through anaerobic digestion in the treatment of faecal sludge. The appropriate management of excreta and its valorisation through the production of biogas from faecal sludge helps mitigate the effects of poorly managed excreta such as waterborne diseases and water and environmental pollution. The Resource Recovery and Reuse (RRR) )

512-437: A national (or local) distribution network; whilst at other times (when their fuel or energy requirements outstrip their own production of it) they consume that same fuel or energy from that grid. This is widely done by households by means of PV panels on their roofs generating electricity. Such households may additionally make use of battery storage to increase their share of self-consumed PV electricity, referred to as prosumage in

576-463: A person using commons-based peer production . In the digital and online world, prosumer is used to describe 21st-century online buyers because not only are they consumers of products, but they are able to produce their own products such as, customised handbags, jewellery with initials, jumpers with team logos, etc. In the field of renewable energy, prosumers are households or organisations which at times produce surplus fuel or energy and feed it into

640-784: A popular source of energy and is starting to be used in the United States more. In 2003, the United States consumed 43 TWh (147 trillion BTU) of energy from "landfill gas", about 0.6% of the total U.S. natural gas consumption. Methane biogas derived from cow manure is being tested in the U.S. According to a 2008 study, collected by the Science and Children magazine, methane biogas from cow manure would be sufficient to produce 100 billion kilowatt hours enough to power millions of homes across America. Furthermore, methane biogas has been tested to prove that it can reduce 99 million metric tons of greenhouse gas emissions or about 4% of

704-421: A pressure gauge. Frequent smell checks must be performed on a biogas system. If biogas is smelled anywhere windows and doors should be opened immediately. If there is a fire the gas should be shut off at the gate valve of the biogas system. Landfill gas is produced by wet organic waste decomposing under anaerobic conditions in a similar way to biogas. The waste is covered and mechanically compressed by

SECTION 10

#1732791427858

768-421: Is 5% methane and the upper is 15% methane. The methane in biogas is 28 times more potent a greenhouse gas than carbon dioxide. Therefore, uncontained landfill gas, which escapes into the atmosphere may significantly contribute to the effects of global warming . In addition, volatile organic compounds (VOCs) in landfill gas contribute to the formation of photochemical smog . Biochemical oxygen demand (BOD)

832-454: Is a portmanteau of the words producer and consumer . Research has identified six types of prosumers: DIY prosumers, self-service prosumers, customizing prosumers, collaborative prosumers, monetised prosumers, and economic prosumers. The terms prosumer and prosumption were coined in 1980 by Alvin Toffler , an American futurist , and were widely used by many technology writers of

896-407: Is a function of biogas temperature; correction of measured gas volume for water vapour content and thermal expansion is easily done via simple mathematics which yields the standardized volume of dry biogas. For 1000 kg (wet weight) of input to a typical biodigester, total solids may be 30% of the wet weight while volatile suspended solids may be 90% of the total solids. Protein would be 20% of

960-813: Is a measure of the amount of oxygen required by aerobic micro-organisms to decompose the organic matter in a sample of material being used in the biodigester as well as the BOD for the liquid discharge allows for the calculation of the daily energy output from a biodigester. Another term related to biodigesters is effluent dirtiness, which tells how much organic material there is per unit of biogas source. Typical units for this measure are in mg BOD/litre. As an example, effluent dirtiness can range between 800 and 1200 mg BOD/litre in Panama. From 1 kg of decommissioned kitchen bio-waste, 0.45 m of biogas can be obtained. The price for collecting biological waste from households

1024-501: Is a subprogram of the CGIAR Research Program on Water, Land and Ecosystems (WLE) dedicated to applied research on the safe recovery of water, nutrients and energy from domestic and agro-industrial waste streams. They believe using waste as energy would be good financially and would tackle sanitation, health and environmental issues. The European Union has legislation regarding waste management and landfill sites called

1088-551: Is approximately €70 per ton. The composition of biogas varies depending upon the substrate composition, as well as the conditions within the anaerobic reactor (temperature, pH, and substrate concentration). Landfill gas typically has methane concentrations around 50%. Advanced waste treatment technologies can produce biogas with 55–75% methane, which for reactors with free liquids can be increased to 80–90% methane using in-situ gas purification techniques. As produced, biogas contains water vapor. The fractional volume of water vapor

1152-432: Is made as a product which is a greenhouse gas ( as described by this equation: CH 4 + 2 O 2 → CO 2 + 2 H 2 O ). The content of toxic hydrogen sulfide presents additional risks and has been responsible for serious accidents. Leaks of unburned methane are an additional risk, because methane is a potent greenhouse gas . A facility may leak 2% of the methane. Biogas can be explosive when mixed in

1216-653: Is now the GMP Cow Power Program. Customers can elect to pay a premium on their electric bill, and that premium is passed directly to the farms in the program. In Sheldon, Vermont , Green Mountain Dairy has provided renewable energy as part of the Cow Power program. It started when the brothers who own the farm, Bill and Brian Rowell, wanted to address some of the manure management challenges faced by dairy farms, including manure odor, and nutrient availability for

1280-442: Is often associated with the production of tailored goods or services on a large scale production. This increase in participation has flourished following the increasing popularity of Web 2.0 technologies, such as Instagram, Facebook, Twitter and Flickr. In July 2020, an academic description reported on the nature and rise of the "robot prosumer", derived from modern-day technology and related participatory culture , that, in turn,

1344-401: Is one of the first camera models to feature an automated high dynamic range (HDR) shooting mode. This advanced digital imaging technique shoots three bracketed exposures in quick succession, and then automatically composites them for an increased dynamic range and more vivid coloration. HDR should be used on a tripod, to prevent blur. In the high-end compact camera market, its main competitor

SECTION 20

#1732791427858

1408-433: Is produced by anaerobic digestion with anaerobic organisms or methanogens inside an anaerobic digester , biodigester or a bioreactor . The gas composition is primarily methane ( CH 4 ) and carbon dioxide ( CO 2 ) and may have small amounts of hydrogen sulfide ( H 2 S ), moisture and siloxanes . The methane can be combusted or oxidized with oxygen. This energy release allows biogas to be used as

1472-552: Is produced by microorganisms, such as methanogens and sulfate-reducing bacteria , performing anaerobic respiration. Biogas can refer to gas produced naturally and industrially. In soil, methane is produced in anaerobic environments by methanogens, but is mostly consumed in aerobic zones by methanotrophs . Methane emissions result when the balance favors methanogens. Wetland soils are the main natural source of methane. Other sources include oceans, forest soils, termites, and wild ruminants. The purpose of industrial biogas production

1536-502: Is produced from organic compounds containing nitrogen, such as the amino acids in proteins . If not separated from the biogas, combustion results in NO x emissions. In some cases, biogas contains siloxanes . They are formed from the anaerobic decomposition of materials commonly found in soaps and detergents. During combustion of biogas containing siloxanes, silicon is released and can combine with free oxygen or other elements in

1600-418: Is roughly 60% methane and 39% CO 2 with trace elements of H 2 S : inadequate for use in machinery. The corrosive nature of H 2 S alone is enough to destroy the mechanisms. Methane in biogas can be concentrated via a biogas upgrader to the same standards as fossil natural gas , which itself has to go through a cleaning process, and becomes biomethane . If the local gas network allows,

1664-424: Is stored under anaerobic conditions. During storage and when manure has been applied to the land, nitrous oxide is also produced as a byproduct of the denitrification process. Nitrous oxide ( N 2 O ) is 320 times more aggressive as a greenhouse gas than carbon dioxide and methane 25 times more than carbon dioxide. By converting cow manure into methane biogas via anaerobic digestion , the millions of cattle in

1728-634: Is the Panasonic Lumix DMC-LX5 ; one significant difference being that the S95 is significantly slimmer due to the fully collapsible lens, hence more portable. The Canon PowerShot G series (as of November 2010, the G12) are similar in terms of target market and features, but feature a larger body and an optical viewfinder. A similar category to high-end compact cameras are mirrorless interchangeable lens cameras ("MILCs"), some of which are in

1792-431: Is the collection of biomethane, usually for fuel. Industrial biogas is produced either; A biogas plant is the name often given to an anaerobic digester that treats farm wastes or energy crops. It can be produced using anaerobic digesters (air-tight tanks with different configurations). These plants can be fed with energy crops such as maize silage or biodegradable wastes including sewage sludge and food waste. During

1856-439: Is the mass production of highly customized products. However, to reach a high degree of customization, consumers would have to take part in the production process especially in specifying design requirements. In a sense, this is merely an extension or broadening of the kind of relationship that many affluent clients have had with professionals like architects for many decades. However, in many cases architectural clients are not

1920-474: Is the remaining inorganic matter that was not transformed into biogas. It can be used as an agricultural fertiliser. Biogas can be used as the fuel in the system of producing biogas from agricultural wastes and co-generating heat and electricity in a combined heat and power ( CHP ) plant. Unlike the other green energy such as wind and solar, the biogas can be quickly accessed on demand. The global warming potential can also be greatly reduced when using biogas as

1984-553: Is the second ranked bestseller of all time in China, just behind a work by Mao Zedong . Don Tapscott reintroduced the concept in his 1995 book The Digital Economy. , and his 2006 book Wikinomics: How Mass Collaboration Changes Everything with Anthony D. Williams. George Ritzer and Nathan Jurgenson, in a widely cited article, claimed that prosumption had become a salient characteristic of Web 2.0 . Prosumers create value for companies without receiving wages. Toffler's Prosumption

Canon PowerShot S95 - Misplaced Pages Continue

2048-943: The Landfill Directive . Countries such as the United Kingdom and Germany now have legislation in force that provides farmers with long-term revenue and energy security. The EU mandates that internal combustion engines with biogas have ample gas pressure to optimize combustion, and within the European Union ATEX centrifugal fan units built in accordance with the European directive 2014–34/EU (previously 94/9/EG) are obligatory. These centrifugal fan units, for example Combimac , Meidinger AG or Witt & Sohn AG are suitable for use in Zone 1 and 2 . The United States legislates against landfill gas as it contains VOCs . The United States Clean Air Act and Title 40 of

2112-491: The combustion gas . Deposits are formed containing mostly silica ( SiO 2 ) or silicates ( Si x O y ) and can contain calcium , sulfur , zinc , phosphorus . Such white mineral deposits accumulate to a surface thickness of several millimeters and must be removed by chemical or mechanical means. Practical and cost-effective technologies to remove siloxanes and other biogas contaminants are available. High levels of methane are produced when manure

2176-489: The Code of Federal Regulations (CFR) requires landfill owners to estimate the quantity of non-methane organic compounds (NMOCs) emitted. If the estimated NMOC emissions exceeds 50 tonnes per year, the landfill owner is required to collect the gas and treat it to remove the entrained NMOCs. That usually means burning it. Because of the remoteness of landfill sites, it is sometimes not economically feasible to produce electricity from

2240-482: The S90, but adds a number of refinements. Among other things, it features a thinner body, improved image stabilization, an automated HDR shooting mode, 720p HD-quality video recording with stereo sound, and a more ergonomic finish and controls. Other features include a tracking autofocus function, enabling it to track and focus on moving subjects. The S95 is the first compact camera to feature Hybrid IS, which minimizes

2304-471: The United States would be able to produce 100 billion kilowatt hours of electricity, enough to power millions of homes across the United States. One cow can produce enough manure in one day to generate 3 kilowatt hours of electricity. Furthermore, by converting cattle manure into methane biogas instead of letting it decompose, global warming gases could be reduced by 99 million metric tons or 4%. Biogas can be used for electricity production on sewage works, in

2368-420: The biogas produced by wastewater from the brewery only. Manufacturing of biogas from intentionally planted maize has been described as being unsustainable and harmful due to very concentrated, intense and soil eroding character of these plantations. There are two key processes: mesophilic and thermophilic digestion which is dependent on temperature. In experimental work at University of Alaska Fairbanks ,

2432-564: The crops they need to grow to feed the animals. They installed an anaerobic digester to process the cow and milking center waste from their 950 cows to produce renewable energy, a bedding to replace sawdust, and a plant-friendly fertilizer. The energy and environmental attributes are sold to the GMP Cow Power program. On average, the system run by the Rowells produces enough electricity to power 300 to 350 other homes. The generator capacity

2496-434: The energy can be used for on-site generation , resulting in a reduction of losses in the transportation of energy. Typical energy losses in natural gas transmission systems range from 1% to 2%; in electricity transmission they range from 5% to 8%. Before being injected in the gas grid, biogas passes a cleaning process, during which it is upgraded to natural gas quality. During the cleaning process trace components harmful to

2560-473: The flow stream because of daily and seasonal temperature fluctuations, and account for the moisture in the flow stream to produce a dry gas value. Biogas can be used in different types of internal combustion engines, such as the Jenbacher or Caterpillar gas engines. Other internal combustion engines such as gas turbines are suitable for the conversion of biogas into both electricity and heat. The digestate

2624-605: The fuel instead of fossil fuel . However, the acidification and eutrophication potentials produced by biogas are 25 and 12 times higher respectively than fossil fuel alternatives. This impact can be reduced by using correct combination of feedstocks, covered storage for digesters and improved techniques for retrieving escaped material. Overall, the results still suggest that using biogas can lead to significant reduction in most impacts compared to fossil fuel alternative. The balance between environmental damage and green house gas emission should still be considered while implicating

Canon PowerShot S95 - Misplaced Pages Continue

2688-507: The gas grid and the final users are removed. If concentrated and compressed, it can be used in vehicle transportation. Compressed biogas is becoming widely used in Sweden, Switzerland, and Germany. A biogas-powered train, named Biogaståget Amanda (The Biogas Train Amanda), has been in service in Sweden since 2005. Biogas powers automobiles. In 1974, a British documentary film titled Sweet as

2752-497: The gas. There are a variety of grants and loans the support the development of anaerobic digestor systems. The Rural Energy for American Program provides loan financing and grant funding for biogas systems, as does the Environmental Quality Incentives Program , Conservation Stewardship Program , and Conservation Loan Program . With the many benefits of biogas, it is starting to become

2816-594: The greenhouse gases produced by the United States. The number of farm-based digesters increased by 21% in 2021 according to the American Biogas Council. In Vermont biogas generated on dairy farms was included in the CVPS Cow Power program. The program was originally offered by Central Vermont Public Service Corporation as a voluntary tariff and now with a recent merger with Green Mountain Power

2880-468: The impact of camera shake on image quality. There are two types of camera shake: angular shake and lateral shake. The PowerShot S95's Hybrid IS stabilizes both types of camera shake by using a dedicated acceleration sensor to detect lateral shake. Because Hybrid IS is effective in reducing noticeable lateral shake at short shooting distances (where shooting magnification is high), the camera is able to greatly stabilize images at all shooting distances. The S95

2944-425: The literature. It is also done by businesses which produce biogas and feed it into a gas network while using gas from the same network at other times or in other places. The European Union's Nobel Grid project, which is part of their Horizon 2020 research and innovation programme, uses the term in this way, for example. The sharing economy is another context where individuals can act as prosumers. For example, in

3008-714: The only or even primary end-consumers. Toffler has extended these and many other ideas well into the 21st century. Along with more recently published works such as Revolutionary Wealth (2006), one can recognize and assess both the concept and fact of the prosumer as it is seen and felt on a worldwide scale. That these concepts are having a global impact and reach, however, can be measured in part by noting in particular, Toffler's popularity in China . Discussing some of these issues with Newt Gingrich on C-SPAN 's After Words program in June 2006, Toffler mentioned that The Third Wave

3072-428: The process, the micro-organisms transform biomass waste into biogas (mainly methane and carbon dioxide) and digestate . Higher quantities of biogas can be produced when the wastewater is co-digested with other residuals from the dairy industry, sugar industry, or brewery industry. For example, while mixing 90% of wastewater from beer factory with 10% cow whey, the production of biogas was increased by 2.5 times compared to

3136-441: The producer of the biogas may use their distribution networks. Gas must be very clean to reach pipeline quality and must be of the correct composition for the distribution network to accept. Carbon dioxide , water , hydrogen sulfide , and particulates must be removed if present. There are four main methods of upgrading: water washing, pressure swing absorption, selexol absorption, and amine gas treating . In addition to these,

3200-419: The ratio of one part biogas to 8–20 parts air. Special safety precautions have to be taken for entering an empty biogas digester for maintenance work. It is important that a biogas system never has negative pressure as this could cause an explosion. Negative gas pressure can occur if too much gas is removed or leaked; Because of this biogas should not be used at pressures below one column inch of water, measured by

3264-489: The roles of consumers and producers has its origins in the cooperative self-help movements that sprang up during various economic crises, e.g. the Great Depression of the 1930s. Marshall McLuhan and Barrington Nevitt suggested in their 1972 book Take Today , (p. 4) that with electric technology, the consumer would become a producer. In the 1980 book, The Third Wave , futurologist Alvin Toffler coined

SECTION 50

#1732791427858

3328-654: The sharing economy, individuals can be providers (e.g., Airbnb hosts, Uber drivers) and consumers (e.g., Airbnb guests, and Uber passengers). Prosumers are one avenue to grow the sharing economy. Scholars have connected prosumer culture to the concept of McDonaldization , as advanced by sociologist George Ritzer . Referring to the business model of McDonald's , which has emphasized efficiency for management while getting customers to invest more effort and time themselves (such as by cleaning up after themselves in restaurants), McDonaldization gets prosumers to perform more work without paying them for their labor. The blurring of

3392-608: The sides of pipes or stacks throughout the gas flow. Biogas environments include wastewater digesters, landfills, and animal feeding operations (covered livestock lagoons). Ultrasonic flow meters are one of the few devices capable of measuring in a biogas atmosphere. Most of thermal flow meters are unable to provide reliable data because the moisture causes steady high flow readings and continuous flow spiking, although there are single-point insertion thermal mass flow meters capable of accurately monitoring biogas flows with minimal pressure drop. They can handle moisture variations that occur in

3456-460: The system. Projects such as NANOCLEAN are nowadays developing new ways to produce biogas more efficiently, using iron oxide nanoparticles in the processes of organic waste treatment. This process can triple the production of biogas. Faecal Sludge is a product of onsite sanitation systems. Post collection and transportation, Faecal sludge can be treated with sewage in a conventional treatment plant, or otherwise it can be treated independently in

3520-399: The system. It takes roughly between 3% and 6% of the total energy output in gas to run a biogas upgrading system. Gas-grid injection is the injection of biogas into the methane grid ( natural gas grid ). Until the breakthrough of micro combined heat and power two-thirds of all the energy produced by biogas power plants was lost (as heat). Using the grid to transport the gas to consumers,

3584-417: The term "prosumer" when he predicted that the role of producers and consumers would begin to blur and merge (even though he described it in his book Future Shock from 1970). Toffler envisioned a highly saturated marketplace as mass production of standardized products began to satisfy basic consumer demands. To continue growing profit , businesses would initiate a process of mass customization , that

3648-435: The time. Technological breakthroughs and a rise in user participation blurs the line between production and consumption activities, with the consumer becoming a prosumer. Prosumers have been defined as "individuals who consume and produce value, either for self-consumption or consumption by others, and can receive implicit or explicit incentives from organizations involved in the exchange." The term has since come to refer to

3712-451: The use of membrane separation technology for biogas upgrading is increasing, and there are already several plants operating in Europe and USA. The most prevalent method is water washing where high pressure gas flows into a column where the carbon dioxide and other trace elements are scrubbed by cascading water running counter-flow to the gas. This arrangement could deliver 98% methane with manufacturers guaranteeing maximum 2% methane loss in

3776-548: The volatile solids, carbohydrates would be 70% of the volatile solids, and finally fats would be 10% of the volatile solids. Toxic and foul smelling Hydrogen sulfide ( H 2 S ) is the most common contaminant in biogas, but other sulfur-containing compounds, such as thiols may be present. Left in the biogas stream, hydrogen sulfide is corrosive and when combusted yields sulfur dioxide ( SO 2 ) and sulfuric acid ( H 2 SO 4 ), also corrosive and environmentally hazardous compounds. Ammonia ( NH 3 )

3840-426: The weight of the material that is deposited above. This material prevents oxygen exposure thus allowing anaerobic microbes to thrive. Biogas builds up and is slowly released into the atmosphere if the site has not been engineered to capture the gas. Landfill gas released in an uncontrolled way can be hazardous since it can become explosive when it escapes from the landfill and mixes with oxygen. The lower explosive limit

3904-442: The world. Biogas can be cleaned and upgraded to natural gas standards, when it becomes bio-methane. Biogas is considered to be a renewable resource because its production-and-use cycle is continuous, and it generates no net carbon dioxide. From a carbon perspective, as much carbon dioxide is absorbed from the atmosphere in the growth of the primary bio-resource as is released, when the material is ultimately converted to energy. Biogas

SECTION 60

#1732791427858

3968-440: Was further developed by Tomasz Szymusiak in 2013 and 2015 in two marketing books. Technological breakthrough has fastened the development of prosumption. With the help of additive manufacturing techniques, for example, co-creation takes place at different production stages: design, manufacturing and distribution stages. It also takes place between individual customers, leading to co-design communities. Similarly, mass customisation

4032-569: Was substantially predicted earlier by science fiction writers . Prosumer capitalism has been criticized as promoting "new forms of exploitation through unpaid work gamified as fun". Identifiable trends and movements outside of the mainstream economy which have adopted prosumer terminology and techniques include: Biogas Biogas is a gaseous renewable energy source produced from raw materials such as agricultural waste , manure , municipal waste , plant material , sewage , green waste , wastewater , and food waste . Biogas

4096-426: Was well described and expanded in economic terms by Philip Kotler , who saw them as a new challenge for marketers. Kotler anticipated that people will also want to play larger role in designing certain goods and services they consume, furthermore modern computers will permit them to do it. He also described several forces that would lead to more prosumption like activities, and to more sustainable lifestyles, that topic

#857142