The resistance produced by the vapour which remains uncondensed if the engine be a condensing engine, or of the atmospheric pressure if the engine do not condense the steam.
Trevethick and Vivian constructed the first non-condensing engine of this kind which was ever brought into extensive practical use in this kingdom.
How is the vacuum maintained in a condensing engine?
Watt, at a very early period, proposed to apply his own engine to locomotion, and contemplated using either a non-condensing engine or an air-surface condenser.
It will be noticed that Watt suggests, above, the now well-known non-condensing engine.
The latter combination made a non-condensing engine, in which he used steam at a pressure of 15 pounds per square inch.
He may also locate the point of cut off, of release, the amount of back pressure, the degree of perfection of the vacuum in a condensing engine, and the amount of compression.
Its use is to show the amount of back pressure, and in a condensing engine to show the degree of vacuum obtained.
In the case of a condensing engine (one exhausting into a condenser) the back pressure depends upon the efficiency of the condenser, averaging about 3 pounds absolute pressure in the best practice.
Example 2:--A condensing engine has a clearance of 5 per cent.
The theoretical back pressure in a non-condensing engine (one exhausting into the atmosphere) is that of the atmosphere or 14.
The next point to be decided is, whether a condensing or non-condensing engine should be employed.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "condensing engine" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
