Compressed Air and Water
The goal of the following research is to demonstrate that Carlton & United Breweries (CUB) reduced energy and water consumption will not only protect their environment, but also earn and save them extra income.
Brewing used to require about 25 litres of water per litre of beer, nowadays it requires only 4 to 5 litres*, on the other hand, compressed air accounts about 10% of electricity consumption in the industry*. CUB needs to use cutting edge technologies, more preventive maintenance programs and “very simple ways in which the procedure can become cleaner”* in order to reach and overcome these requirements. And let’s not forget that every litre of water and watt of energy saved will be reflected as a profit.
Water Issue
CUB has taken the water issue in consideration, reducing its consumption by 7-9%, only by installing a recycling system which is capable of distributing re-used water for the cooling towers of the engine room, boiler house, floor wash-down and pasteurisation*.
However, there is a lot that can be done in order to reduce even more this percentage; cisterns on the roof collect rainwater that can be used for the toilets and landscape irrigation, saving 3.9 million litres of potable water a year*, and also, can be purified and used as the re-used water if necessary*. Cascade Brewery, also from Australia, is saving an average of 5,812 KL per month*, some of their main water reduction actions are: replacement of heat exchange equipment with more efficient units, steam condensate return to the boilers, The installation of a 32 KL tank at to collect water from the carbon dioxide and air compressors for use as boiler feedwater, among others*.
Compressed Air Issue
Not much has been done in order to make a significative reduction in the compressed air issue. Actually, it has reduced 1%, only by applying air knives instead of compressed air in order to dry the bottles before labelling and a leak identification program.
There is wide range of possibilities CUB could work on in order to reduce its compressed air consumption, which it’s translated into less energy consumption from the air compressors and blowers.
Switch to state of the art air compressors, these can really mean a huge difference regarding energy consumption*. Variable Speed compressors (VS), can match the air demand by adjusting the motors RPMs and energy consumption, however, VS are most efficient at low to mid capacity ranges (20-60% full load), and are designed only to intermittent operation at 100% capacity*.
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utilizing water and compressed air to shoot into the air. Our challenge was to create a rocket that could withstand the force exerted on it during the launch, while making sure it could protect the egg inside of it. We tried changing many things until we created a rocket, cone, fin, and recovery system combination that worked. The overall look of our rocket included a plastic cone on top of a two liter bottle, and 4 fins around the base. Though our rocket The rocket flew because when the water, pushed
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many ways; including air pressure, Bernoulli’s principle, Pascal’s Principle, and Archimedes Principle. Air pressure is the force exerted on you by the weight of tiny particles of air, called air molecules (Sample n.pag). The air’s pressure is caused by the weight of air that presses down on the earth, the ocean, and the air (Understanding...n.pag). Even though they can’t be seen, they still have weight and take up space. Air molecules are very spaced out and can be compressed to fit in a smaller
Yale, invented the “Turtle”. This egg shaped submarine was driven by two, hand-cranked screw propellers; one controlling forward movemen... ... middle of paper ... ...into fresh water through a distillation process. The distillation plant on submarines can produce 10,000 to 40,000 gallons of water per day. The water is mainly used for cooling equipment and for the crews’ personal use. Sources Fruedenrich, Craig, Ph.D, and Marshall Brain. How Submarines Work. 10 Apr. 2003 . Guilmartin
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that use contains high air voids. Air voids occur when there is air trapped between soil particles. High air void content in soil will decrease the soil strength and the soil is categorising as the loose soil. To remove air voids, mechanical energy is required and indirectly it will also cause changes in the water content. Compaction is where the process of turning the soil more dense. It is where the soil particles are press together to a closer state while expelling the air from the soil in process