In human thermodynamics, sexual energy is the energy associated with the act of sex or with that energy that indirectly leads to ultimately to desired acts of sex. Sexual energy, defined another way, is energy associated with the sex drive or sexual desire.

History
Polish social-economist Leon Winiarski seems to have been the first to theorize about sexual energy, in a thermodynamic sense, in his circa 1898 Essay on Social Mechanics. To cite an example, French-to-English translation, passage: [5]

Un tel champ de forces esthetiques, sans lequel l’art, ce genre special de richesse, ne pourrait pas exister, sont, comme nous l’avons dit, les bals, les soirees, etc., Les cotes concurrents sont evidemment non pas les vieux qui s’ennuient, mais la jeunesse qui lute pour l’amour. Une partie de son energie sexuelle, ne pouvant trouver de satisfaction ...Such a field of aesthetic forces, without which art, this special kind of wealth could not exist, are, as we said, balls, parties, etc.., Quotes competitors are obviously not the old bored, but youth who lute to love. Part of his sexual energy, unable to find satisfaction ...

Sexual energy, in a conservation of energy sense, was first described in the libido theories of Austrian psychologist Sigmund Freud, particularly in his 1915 paper on repression, in which the core drive of sexual energy is represented by the id in Freudian ego psychology, but held in check by the restrictions of existence. [1] This model of sexual energy as one of the core internal drives of the person was continued in the work of Carl Jung, particular in his “On Psychic Energy”, who addressed the subject in terms of both energy and entropy, as summarized well in the 2005 work of American business development theorist David Robinson. [2]

The works of English novelist D.H. Lawrence, according to American literature thermodynamicist Bruce Clarke, is said to use thermodynamics logic in an allegorical sense to discuss sexual energy. [3]

English playwright Tom Stoppard’s 1993 play Arcadia, which is modeled on Johann Goethe’s 1809 Elective Affinities, is themed on thermodynamic models of interactions and bondings of people propelled by sexual energy that sometimes runs out, similar to a chemical reaction. [1]

The works of Sean O’Reilly (2001) and Francisco Tellez (2003) theorize about sexual energy in terms of thermodynamics.

Newer models
The "physical heat" of sex, according to the standard model of human thermodynamics, is quantified in terms of the enthalpic drive, whereas the "mental heat" of sex is quantified in terms of the entropic drive, in loose theoretical framework; and is understood, in a general sense, as energy released from a human chemical reaction, quantified by Gibbs free energy. [1]

See also
● Sexual entropy
● New relationship energy
● Animal heat

References
1. Thims, Libb. (2007). Human Chemistry (Volume Two) (sexual energy, pgs. 447-48, 484). Morrisville, NC: LuLu.
2. Robinson, David W. (2005). Conscience and Jung’s Moral Vision: from id to thou (pg. 59; section: “The Conservation of Energy and Entropy”, pgs. 66-70, esp. 66). Paulist Press.
3. Clarke, Bruce. (1998). “A Different Sun: The Allegory of Thermodynamics in D. H. Lawrence”, in Myth and Making of Modernity (pgs. 81-98, esp. pg. 97), edited by Michael Bell and Peter Poellner. Rodopi.
4. (a) O’Reilly, Sean. (2001). How to Manage Your Dick: Destructive Impulses with Cyber-kinetics: Redirect Sexual Energy and Discover your More Spiritually Enlightened, Evolved Self (sexual energy, 43+ pgs). Travelers’ Tales.
(b) Tellez, Francisco M. (2003). “Transorgasmic Sexuality" (Sexualidad Transorgásmica), (part-1, part-2) Local Magazine, Santiago de Chile.
5. Winiarski, Leon. (1967). Essais Sur la Mecanique Sociale: Textes reunis et presents par Giovanni Busino (Essay on Social Mechanics: Collected Works presented by Giovanni Busino) (energie sexuelle, pg. 195). Librairie Droz.

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