Thermal Engineering Quotes

In despair, I offer your readers their choice of the following definitions of entropy. My authorities are such books and journals as I have by me at the moment. (a) Entropy is that portion of the intrinsic energy of a system which cannot be converted into work by even a perfect heat engine.—Clausius. (b) Entropy is that portion of the intrinsic energy which can be converted into work by a perfect engine.—Maxwell, following Tait. (c) Entropy is that portion of the intrinsic energy which is not converted into work by our imperfect engines.—Swinburne. (d) Entropy (in a volume of gas) is that which remains constant when heat neither enters nor leaves the gas.—W. Robinson. (e) Entropy may be called the ‘thermal weight’, temperature being called the ‘thermal height.’—Ibid. (f) Entropy is one of the factors of heat, temperature being the other.—Engineering. I set up these bald statement as so many Aunt Sallys, for any one to shy at. [Lamenting a list of confused interpretations of the meaning of entropy, being hotly debated in journals at the time.]

Then at 00:28, while reducing power to levels low enough to begin - a process which would take about an hour - Senior Reactor-Control Engineer Leonid Toptunov made a mistake when switching from manual to automatic control, causing the control rods to descend far more than intended.99 Toptunov had only been in his current position for a few months, during which the reactor power had never been reduced.100 Perhaps his nerves got the better of him. Power levels - supposed to be held at 1,500-Megawatts thermal (MWt) for the test - dropped all the way to 30MWt. (The reactor’s output is measured in terms of thermal power - the turbogenerator’s in electrical power. Energy is lost during the transfer from steam to electricity, hence the higher thermal figures.)

Tracked Vehicles "Each war proves anew to those who may have had their doubts, the primacy of the main battle tank. Between wars, the tank is always a target for cuts. But in wartime, everyone remembers why we need it, in its most advanced, upgraded versions and in militarily significant numbers." - IDF Brigadier General Yahuda Admon (retired) Since their first appearance in the latter part of World War I, tanks have increasingly dominated military thinking. Armies became progressively more mechanised during World War II, with many infantry being carried in armoured carriers by the end of the war. The armoured personnel carrier (APC) evolved into the infantry fighting vehicle (IFV), which is able to support the infantry as well as simply transport them. Modern IFVs have a similar level of battlefield mobility to the tanks, allowing tanks and infantry to operate together and provide mutual support. Abrams Mission Provide heavy armour superiority on the battlefield. Entered Army Service 1980 Description and Specifications The Abrams tank closes with and destroys enemy forces on the integrated battlefield using mobility, firepower, and shock effect. There are three variants in service: M1A1, M1A2 and M1A2 SEP. The 120mm main gun, combined with the powerful 1,500 HP turbine engine and special armour, make the Abrams tank particularly suitable for attacking or defending against large concentrations of heavy armour forces on a highly lethal battlefield. Features of the M1A1 modernisation program include increased armour protection; suspension improvements; and an improved nuclear, biological and chemical (NBC) protection system that increases survivability in a contaminated environment. The M1A1D modification consists of an M1A1 with integrated computer and a far-target-designation capability. The M1A2 modernisation program includes a commander's independent thermal viewer, an improved commander's weapon station, position navigation equipment, a distributed data and power architecture, an embedded diagnostic system and improved fire control systems.

The comments section on the Marginal Revolution blog post about the Death Star calculation is a case in point. Here, even now, sober economists hash out questions about the variables: Whether to factor in the slave labor of Wookiees (which was partly responsible for its construction, according to the novel Death Star). Or whether you could fund the whole thing from taxes on the population of Coruscant (which is said to have a trillion inhabitants, thus funding the Death Star at a cost of roughly $8,000 per person). Or whether a quality assurance engineer should have nixed a thermal exhaust port two meters wide that led directly to the main reactor shaft, and what effect this oversight might have had on the Empire’s chances of getting an insurance policy on its second Death Star.

Zeroth Law of Thermodynamics:          •  If two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other.

Solar energy can be used for large scale production of electricity in power plants by means of flat plate and concentrator photovoltaic (PV) systems, as well as by thermal concentrated solar power (CSP) systems.

You ask an electrical engineer to design the thermal system on the french fryer. Then you ask me to carry flip charts to facilitate strategic planning. I had many reasons to refuse all the opportunities that led to me becoming CEO.

Modern natural science experiences the emerging of seeds as a chemical process that is interpolated in terms of the grinding gears of the mechanistically viewed interaction between seeds, the condition of the soil, and thermal radiation. In this situation, the modern mind sees only mechanistic cause- and-effect relationships within chemical procedures that have particular effects following upon them. Modern natural science—chemistry no less than physics, biology no less than physics and chemistry—are and remain, so long as they exist, ‘mechanistic.’ Additionally, ‘dynamics’ is a mechanics of ‘power.’ How else could modern natural science ‘verify’ itself in ‘technology’ (as one says)? The technical efficaciousness and applicability of modern natural science is not, however, the subsequent proof of the ‘truth’ of science: rather, the practical technology of modern natural science is itself only possible because modern natural science as a whole, in its metaphysical essence, is itself already merely an application of ‘technology,’ where ‘technology’ means here something other than only what engineers bring about. The oft-quoted saying of Goethe’s—namely, that the fruitful alone is the true—is already nihilism. Indeed, when the time comes when we no longer merely fiddle around with artworks and literature in terms of their value for education or intellectual history, we should perhaps examine our so-called ‘classics’ more closely. Moreover, Goethe’s view of nature is in its essence no different from Newton’s; the former depends along with the latter on the ground of modern (and especially Leibnizian) metaphysics, which one finds present in every object and every process available to us living today. The fact that we, however, when considering a seed, still see how something closed emerges and, as emerging, comes forth, may seem insubstantial, outdated, and half-poetic compared to the perspective of the objective determination and explanation belonging to the modern understanding of the germination process. The agricultural chemist, but also the modern physicist, have, as the saying goes, ‘nothing to do’ with φύσις. Indeed, it would be a fool’s errand even to try to persuade them that they could have ‘something to do’ with the Greek experience of φύσις. Now, the Greek essence of φύσις is in no way a generalization of what those today would consider the naïve experience of the emerging of seeds and flowers and the emergence of the sun. Rather, to the contrary, the original experience of emerging and of coming-forth from out of the concealed and veiled is the relation to the ‘light’ in whose luminance the seed and the flower are first grasped in their emerging, and in which is seen the manner by which the seed ‘is’ in the sprouting, and the flower ‘is’ in the blooming.

Modern natural science experiences the emerging of seeds as a chemical process that is interpolated in terms of the grinding gears of the mechanistically viewed interaction between seeds, the condition of the soil, and thermal radiation. In this situation, the modern mind sees only mechanistic cause- and-effect relationships within chemical procedures that have particular effects following upon them. Modern natural science—chemistry no less than physics, biology no less than physics and chemistry—are and remain, so long as they exist, ‘mechanistic.’ Additionally, ‘dynamics’ is a mechanics of ‘power.’ How else could modern [89] natural science ‘verify’ itself in ‘technology’ (as one says)? The technical efficaciousness and applicability of modern natural science is not, however, the subsequent proof of the ‘truth’ of science: rather, the practical technology of modern natural science is itself only possible because modern natural science as a whole, in its metaphysical essence, is itself already merely an application of ‘technology,’ where ‘technology’ means here something other than only what engineers bring about. The oft-quoted saying of Goethe’s—namely, that the fruitful alone is the true—is already nihilism. Indeed, when the time comes when we no longer merely fiddle around with artworks and literature in terms of their value for education or intellectual history, we should perhaps examine our so-called ‘classics’ more closely. Moreover, Goethe’s view of nature is in its essence no different from Newton’s; the former depends along with the latter on the ground of modern (and especially Leibnizian) metaphysics, which one finds present in every object and every process available to us living today. The fact that we, however, when considering a seed, still see how something closed emerges and, as emerging, comes forth, may seem insubstantial, outdated, and half-poetic compared to the perspective of the objective determination and explanation belonging to the modern understanding of the germination process. The agricultural chemist, but also the modern physicist, have, as the saying goes, ‘nothing to do’ with φύσις. Indeed, it would be a fool’s errand even to try to persuade them that they could have ‘something to do’ with the Greek experience of φύσις. Now, the Greek essence of φύσις is in no way a generalization of what those today would consider the naïve experience of the emerging of seeds and flowers and the emergence of the sun. Rather, to the contrary, the original experience of emerging and of coming-forth from out of the concealed and veiled is the relation to the ‘light’ in whose luminance the [90] seed and the flower are first grasped in their emerging, and in which is seen the manner by which the seed ‘is’ in the sprouting, and the flower ‘is’ in the blooming.

I clanked open a bonnet flap and was met by an almost visible wave of heat. The Model T motor’s prodigious talent for thermal radiation would always amaze me. It was as if Henry had made a terrible miscalculation and perfected the external combustion engine.

Ocean thermal energy conversion is a source of renewable energy wherein the temperature differential between deeper, colder water and warmer, shallow water is used to run a heat energy engine and produce electricity. Here Jeremy Feakins is the CEO of Ocean Thermal Energy Corporation which located in Lancaster, Pennsylvania.