Costa coffee Essay Example | Topics and Well Written Essays - 1500 words

Costa coffee - Essay Example Costa coffee Since coffee retailers in the UK largely depend on coffee producing economies therefore, governments of coffee producing economies also influence the operations of coffee shops in UK. For example, Venezuela was the largest coffee exports however, because of government price controls; growers consider growing coffee as not an economically viable option (BBC, 2010). UK government with the support of members of coffee associations is struggling to support the producers of coffee such as through farm certifications, direct-buying initiatives and quality improvement which supports the farmers to improve their position and long term sustainability (British Coffee Association). Economic Population of UK has grown over 60 million people and in 2006, the total population was 60.6 million as compared to 55.9 million in 1971. Moreover, it has been estimated that people above 65 years old will be more in number as compared to individuals below 16 by 2021. Poverty reduction has become an importan t target for UK and government has been able to lift 2.4 million people out of poverty including 800,000 children and government aims to halve child poverty by 2010 and eliminate poverty by 2020. Economic problems faced by coffee producing economies influence the coffee companies in UK because most of the companies are acquiring coffee from these economies. For example, Uganda farmers are facing increasing level of pests and diseases and extremely harsh weather conditions (Butler, 2011). Around 70 percent of the world’s coffee is grown on area less than 10 hectares and most of the famers, out of 25 million in 50 developing economies that produce coffee, sell coffee in small quantities to local traders, manufacturers or exporters. The manufacturers of Coffee in UK are buying green beans from international trading houses or exporters. However, Government of UK is encouraging the companies to buy coffee direct from the famers to access best quality coffee in the long term (Briti sh Coffee Association). Social Consumers are asking for fair deals from suppliers at coffee shops and according to a Concerned Consumer Index Survey, 54 percent of the participants have showed that coffee shops should consider social issues ahead of environmental issues such as treating workers in plantation fairly (Gibbons, 2010). UK Fair trade market has grown from ?493 million in 2007 to ?712.6 million in 2008 and according to survey 72 percent of people are aware that they can buy coffee through fair trade certification. In the period of six months, 36 percent of the people have bought coffee through fair trade and the trend of buying coffee through fair trader is further boosting (Mortimer, 2010). More than 60 million cups of coffee are consumed on average in the UK in one day (British Coffee Association, 2011). The coffee culture is continuously increasing in UK however, because of the economic downturn; consumers in the UK were giving preference to drink coffee at homes rathe r than at coffee shops (Euromonitor, 2011). Consumers in UK are more focusing on taste and quality of coffee and the increasing consumption of coffee at homes is evident from increasing household penetration of coffee pod machines (Euromonitor, 2011). Technological Between 2002 and 2005, the UK internet sales to households have increased by

Engine performance and Efficiensy Coursework Example | Topics and Well Written Essays - 1250 words - 1

Engine performance and Efficiensy - Coursework Example Theoretically, it is the difference between the gross and net thrust (Momentum drag = Gross thrust – Net thrust). It is computed as: Net thrust is a positive aerodynamic force that causes propulsion of an aircraft in air. It is represented as a summation nozzle thrust and momentum of the jet’s motion. It is a resultant propulsion force produced by the jet engine used in providing thrust (speed) to the aircraft. It is the difference between the gross thrust and the momentum drag on the engine of an aircraft (Net thrust = Gross thrust – Maximum drag). It is usually denoted by T and is calculated as follows: The engine thrust is affected by the flow of air into the engine and is thus a change in the rate of airflow results to a change in the resultant thrust. With net thrust, the increase in the aircrafts speed results to an increase for air fed into the engine, resulting to a higher output. With static thrust, the environmental factors tend to determine the ability of the craft to cause motion. With static thrust, the air speed is kept constant and is not affected by the crafts motion thus differing from the net thrust. b) Calculate the net thrust of a turbo jet flying at 150 M/S with an air mass flow of 50 Kg/S and a jet stream velocity of 300 M/S with a chocked nozzle. The residual gas pressure in the jet stream is 45 KPa gauge, the nozzle area is 0.2M2. Net thrust = gross thrust – momentum drag (T = mVj + Aj (Pj - Pam) – mVi) where Pam is the ambient air pressure in question. Form this equation an increase in the ambient air pressure, while holding all other factors constant results to a decrease in the net thrust of the engine, which being the denominator of the SFC formula results to an increase in the resultant value of the specific fuel consumption. As indicated by the new SFC equation Propulsive efficiency = (2Vi) / (Vi + Vj), where Vi is the speed of the exhaust gases and Vj is the incoming air speed. Increasing the speed of the gas