Cooling Rate of Certain Liquids

The purpose of the first experiment is to determine when to drink coffee by finding and recording the cooling rate of the coffee under three different conditions. Suppose you have a phone, add milk. Three different conditions were chosen because these conditions are most likely to occur for those who drink coffee.

There are two types of cooling systems for automobiles, air cooling system and liquid cooling system. Air cooling system is a system using air as a coolant. It is typically used for single cylinder engines like motorcycles, but liquid cooling systems are called radiator systems. It is a system that uses liquid as a coolant for multi-cylinder engine such as automobile and truck. Radiators are an important element of car cooling system. It will keep the engine from overheating

Engine cooling is accomplished by circulating coolant around the internal passages in the engine. As described above, the coolant is heated and then cooled by the seawater circulation cooler. If cooling is insufficient, some of the engine that is exposed to extremely high temperatures due to the combustion of the fuel will immediately fail. As a practical safeguard against explosions in the crankcase, explosion proof valves or doors are attached. These valves are used to reduce the excess pressure of the crankcase and to prevent flames from the crankcase. It also needs to be closed automatically to prevent atmospheric air from returning to the crankcase.

Most fire suppression involves applying water to the combustion material and cooling it to the point where combustion no longer stands. Special fire extinguishing agents and techniques are often required for flames involving combustible liquids, certain chemicals and flammable metals. With some fuels, the use of water is actually dangerous. The first fire engines appeared in the 17th century, they were only runners, long pole or wheeled buckets; buckets were still provided to the fire by the bucket brigade. The bathtub functions as a reservoir and has a hand pump that forces water through a pipe or nozzle from time to time to wait for a bucket. In 1672, a hand-stitched leather hose was invented in the Netherlands, firefighters were able to work near the fire without compromising the engine and without improving the accuracy of the discharge.