Littlebrook Power Station Essay Example for Free

Littlebrook Power Station Essay Littlebrook is an oil-fired power station, which uses oil to produce electricity. The oil is transported by the sea. It is powered by heavy fuel oil this means it has to bring tonnes of oil from other countries. Littlebrook is located on the banks of the river Thames in Dartford. In the 1990s the CEGB was privatised from that came out npower RWE Innogy from that two companies came out international power. RWE then took over which made RWE npower. There has to be lots of work done in the power station like: Finance the finance department is probably the most important in the power station. Marketing Team this would include a team which goes to the market to buy and sell the electricity on the market. The company has to also buy electricity from other companies at a cheaper rate so they dont lose profit. The marketing team also have to buy supplies from other countries i.e. at the moment most of the oil in the world is in the Middle East and in Latin America. The company dont have to pay that much for transportation because there are next to the River Thames. In the power station there are about 120 people working this includes the workers the receptionists, catering, security and also the actual worker who are in the power station. In a power station all kinds of people work there. One of the main ones is people like: Security are there to protect the worker and also the visitors from other people who trespass the property they also look at the CCTV to check for people who are not meant to be there. Receptionist they greet the people who come to see the power station visitors or the workers they all. Caters they provide food and drink for everybody who visits or works there. Touring staff are the people who help the visitors to go around the power station safely. Including these there are people like scientist and engineers who work here. These people are set into departments like: * Operations the operation departments is divided into two one is no specific skills and also Engineers 1. Engineers to work as an engineer in a power station you will have to have GCSE, A levels and also a good degree to work in the power station 2. No specific skills This job requires you to have GCSEs and A levels, also you do not need a specific skills i.e. engineer this came means you can do more than one job. * Maintenance the maintenance departments is divided into two as well, which consist of Fitter and Apprentices. 1. Fitter For you to work as a fitter you need to have a NVQ qualification to get this you need to do practices and then when you pass your exam you can get this qualification and work at the power station. Apprentices For you to be an apprentice at the power station you need to have good GCSE results and met the requirement they ask for. * Engineering is also divided into two different paths this consist of a degree and a good degree. 1. Degree in engineering you can get a degree in Mechanical, Electrical, Computing Control this might be getting a bachelor of engineering degree or other degrees. 2. Good Degree to get this job you will need to have a master degree in engineering this involves a more skilled and a person which has more knowledge about engineering. * Chemistry Environment to do this job you simply need to get a standard degree in engineering to do this work. * Administration and Finance/Procurement Commercial to be able to do this work you need to have a wide range of knowledge and skills to do it. To do this job you need to have good GCSE results and also a good degree. * Managers to work as the manger of the power station you need to have a good degree. When the oil has been transported form other countries to the power station it is then transferred this to the 4 tanks near the bank, where the oil is filtered then because the oil is heavy and thick it has to be pushed at a high pressure to move it the oil preparation to the boiler. Then in the boiler chamber it has 3 boilers in there and each boiler can burn up to 4,500 tonnes of oil each day. Then when oil is heated then it will create heat and then this heat would be able to heat the water and then change it to steam, this would be able to turn the turbines to make this efficient the steam will be going through the turbines twice. After the turbine is moving the generator starts to move the rotor then takes affect and then creates an electric current. Then after the steam has finished it moves in to the condenser which turns the steam into water where there are pipes with cold water from the river Thames to condense the steam. After all of this electric current is made at a volta ge of 23,500. To make this more efficient the voltage has been increased when it is sent into the National Grid system. ICT in the power station is used a lot, when I first visited Littlebrook Power Station I thought there would be more than a thousand workers then when I heard they were only 120 I was shocked. So ICT in the power plant is very important. First of all ICT is used for communication from the main room to the lower rooms. The machines in the big hall have to also be computerised because the things you have to do are lots that humans can do.

Led Zeppelins Houses of the Holy :: Led Zeppelin Rock N Roll Bands Essays

Led Zeppelin's Houses of the Holy Led Zeppelin is arguably one of the best rock n’ roll bands of all time. They were collectively some of the best musicians ever to play rock n’ roll music, and were also great lyricists. Robert Plant (the lead vocalist) was quoted as saying that for some of the songs that he wrote, he felt that someone pushed the pen for him. Whether some mysterious force was moving his hand or not, one things for sure, Led Zeppelin wrote some timeless masterpieces of music. They were formed from the ashes of British blues-rockers the Yardbirds. Jimmy Page (Led Zeppelins official founder) started off as the bassist for the Yardbirds, but eventually moved on to play electric guitar for the band. In 1968 the Yardbirds broke up leaving Jimmy Page the rights to the band. Jimmy went out looking to start a new group and found charismatic vocalist Robert Plant, Roberts close friend and explosive drummer John Bonham, and already famous bass guitar player John Paul Jones. The group hit it off and did a few shows in England before renaming the band Led Zeppelin.   Ã‚  Ã‚  Ã‚  Ã‚  Somewhat a mysterious band, Led Zeppelin rarely did interviews and did not talk much to the press. For these reasons much of the press did not like them. However, their fans loved them. Led Zeppelin established a strong fan base by means of intense touring from the start of the group’s formation. With this intense touring came a lot of temptation. Led Zeppelin indulged in heavy drug and alcohol abuse as well as a lot of sex with groupies, especially American groupies. Their regimen of intense partying would eventually cause the band problems and inevitably lead to the bands undoing with the death of drummer John Bonham. I feel that Led Zeppelin could have been much more. To many Led Zeppelin fans that might sound crazy, but I truly feel that they had much more to offer the world than they ever got to give. The reason I say this is because they really didn’t have a long career and within a 5 or 6 years of forming the band they started having misfortun e and tragedy such as the death of Robert Plants son, Roberts car accident (which interfered with his touring and ability to perform for a few years), John Bonham’s excessive alcohol use, and Jimmy Pages’ heroin addiction that obviously interfered with their touring and songwriting.

The Science Behind The Desalination Process Environmental Sciences Essay

Desalination is the procedure of taking salt from salty H2O to do it suited for imbibing or for usage by industries that require really pure H2O. ( Water Corporation Australia, 2011 ) Desalination workss are normally located near sea or ocean as most desalinization workss get the salty H2O from the sea and ocean. There are many ways of taking the salt from H2O but the chief 3 procedures are: Electrodialysis, Thermal distillment and Reverse osmosis. Electrodialysis Salts dissolved in H2O are ionic which mean they can be either be positively charged ions or negatively charged ions. When an electrical charged is passed through the H2O so â€Å" opposites attract † happens the salt ions will travel toward the antonym charged for illustration a positively charged salt ion will travel toward a negative charge, a negatively charged salt ion will travel toward the positively charge. Once the salt ions have move towards the antonym charged you will hold separated salt from H2O. A membrane is used to divide the purified H2O and salt ions. Thermal distillment The procedure in which salt H2O from the sea or ocean is heated to bring forth steam, so the steam will be condensed on a cold surface and H2O will be left behind. Rearward Osmosis Rearward Osmosis is uses a really high force per unit area and a really all right membrane to roll up the fresh H2O from the salty H2O. The membrane is like a strainer it has holes on the strainer which the holes are merely little plenty to let H2O eyeglasss pass through but non allow salt eyeglasss and other drosss to go through though the membrane Electrodialysis Rearward OsmosisBenefitsThe benefits of desalinization are that you can easy happen the resource, 97 % of the H2O is in ocean and sea and all of that is salt H2O which means that companies and authoritiess can construct desalinization workss and can be certain that the desalinization works will acquire a changeless supply of H2O. For illustration a Government decides to construct a desalinization works and they locate the works merely off shore from the major metropolis, they have a pipe connected to the major metropolis and they turn the desalinization works on H2O is now being filtered by the procedure contrary osmosis all of a sudden you have merely created another really sustainable H2O supply for you metropolis and you have reduced the sum of H2O that needs to be extracted from the chief river. Another benefit of constructing a desalinization works is that the H2O is besides really clean after the filtering and does non necessitate external 3rd party cleansing which river H2O do es. When the desalinization works finished the procedure of filtrating out the salt from the seawater the H2O is really pure so it does non necessitate to travel through extra cleansing, the filtered H2O from the desalinization works may merely necessitate Cl to be added to the H2O and it would be absolutely potable and clean and pure and it would be more cost effectual merely to make all the procedure, filtrating salt and so adding Cl to filtered H2O all in the one desalinization works. Another benefit is that desalinization is more â€Å" socially † accepted than effluent recycling ( Which is H2O from lavatories, cloacas etc ) authoritiess would be much more successful seeking to sell desalinization to the populace than seeking to sell recycled H2O from your lavatories.DisadvantagesDesalination workss are really inefficient and research suggest that if a desalinization works pumps in 500million litres of H2O and so filtrate that 500litres so 250million litres would be pure H2O and the other 250million litres would be salt and drosss which so is pumped back into sea or ocean merely job being that salt and drosss is twice the dressed ore of salt than seawater which means when the following burden of H2O comes in it will be more concentrated than the burden before which mean the desalinization it would be more salt than H2O so the efficiency of the desalinization workss goes down even more. Another downside of a desalinization works is that it uses a batch of energy to power the works which means that it is consuming our energy resources which is already on a strain so fundamentally they are seeking to repair the H2O crisis but making more quandary for the nursery effects and planetary heating issue. But being run on electricity is another issue what happens if they metropolis all of a sudden had a black out, even though the desalinization works may hold backup generators they wo n't be able to keep a power for a works every bit large as a desalinization works, so if we had a power blackout would that average half of the metropolis H2O supply is gone or if we rely entirely on the desalinization works it would intend that the whole metropolis H2O supply is gone which would be really troublesome for the metropolis. Another disadvantage is that â€Å" nil is perfect † no affair how perfect the engineering is it non hone and if something all of a sudden goes incorrect say in rearward osmosis the membrane is excessively big and salt and drosss manage to go through through it would non merely endanger the occupant of metropolis its supply H2O but cause a batch of people to be ill or even dices.Social effects of desalinizationPeoples can still be really disbelieving about imbibing H2O from the sea or ocean even though scientist and applied scientists of the desalinization works says the H2O is absolutely safe, there is ever on the dorsum of your head, what if some went incorrect and they H2O is non wholly pure? Would you desire to give that H2O to your kids, your babe, and your aged parents? With desalinization there is ever that thought that it is non wholly clean, it ‘s truly salt H2O filtered a twosome of clip to acquire pure H2O. Which is turn affects us socially because that it ever traveling to be a difficult sell for authoritiess to state to their occupants that this H2O is absolutely clean.Economic effects of desalinizationDesalination workss are really expensive and they money has to come from someplace so revenue enhancement remunerators end up paying for the desalinization works which obviously makes it even a harder sell for authoritiess, now non merely you have a H2O supply which is less dependable and possible less pure than fresh river H2O you have to pay for this less dependable and less pure beginning of H2O. They H2O measures will hold to travel up every bit good non merely will they charged a levy to pay for the desalinization works they will do you pay excess to subsidies the cost of running the works ( Electricity, paying staff etc )Environmental effects of desalinizationWhen you build a desalinization works merely of shore you besides could perchance interrupt the natural home ground of certain animate beings like fish or they would hold to clear land and which means they will pass over certain types of creates out of their natural home ground which is non ideal, you killing of species and damaging the land. As mentioned before desalinization workss use a batch of power so it will consume fossil fuels and add the turning job of nurseries gas and planetary heating and C emanations as good.DecisionDesalination is a really feasible and realistic solution for H2O direction, it can work out the H2O crisis presently is seem like desalinization is the best alternate solution for H2O in many major metropoliss around the word as it easier accessible engineering is instead mature downside being its really inefficient and cost a batch of money and uses a batch of power. But their possibly better or every bit good solution out at that place instead than desalinization like waste/storm H2O recycling which is a effectual manner of supplying a secondary H2O supply but with societal effects which people non wishing the fact they are re imbibing their lavatory H2O. A more feasible solution possibly is rainwater reaping in which persons can roll up rainwater and utilize it for their demand which major societal or economical affect merely job being that you can truly merely collect rainwater when it rains hence is atrocious inefficient and non dependable. So in stating all of that, Desalination is the best technique to work out our H2O crisis.

What a Double Bond Means in Chemistry

A double bond is a type of chemical  bond in which two electron pairs are shared between two atoms. This type of bond involves four bonding electrons between atoms, rather than the usual two bonding electrons involved in a single bond. Because of the large number of electrons, double bonds tend to be reactive. Double bonds are shorter and stronger than single bonds.Double bonds are drawn as two parallel lines in chemical structure diagrams. The equal sign is used to indicate a double bond in a formula. Russian chemist Alexander Butlerov introduced double bonds in structural formulas in the mid-19th century. Examples Ethylene (C2H4) is a hydrocarbon with a double bond between the two carbon atoms. Other alkenes also contain double bonds. Double bonds are seen in imine (CN), sulfoxides (SO), and azo compounds (NN).