Local Equation of Enthalpy for Flow Systems According to the Balance Theory

• Autorzy: Wrzesiński Z.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a generalised local equation of enthalpy for an open system, which has been transformed into a local equation of enthalpy for an open system. It has been assumed that the flow of an agent through a machine is fixed and that elementary heat created by friction in the machines interior equals an elementary work of friction and an elementary increase of technical work is equal to an elementary of indicated work. Internal and effective power of a rotor or piston flow machine have been established for the above assumptions. By assuming the effective power provided by the machine to be zero, we have obtained a balance equation which describes the work of a heat exchanger.

Słowa kluczowe

EN

enthalpy; flow systems; balance theory

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2003
• Tom: Vol. 51, nr 1
• Strony: 1--7
• Opis fizyczny: 1 rys., bibliogr. 7 poz.

Twórcy

autor

Wrzesiński Z.

• Institute of Mechanics and Construction, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warszawa, Poland (Instytut Mechaniki i Konstrukcji Politechniki Warszawskiej)

Bibliografia

• [1] T. Haupt, The principles of thermodynamics (in Polish), AGH, Kraków 1980.
• [2] E. Kalinowski, Technical thermodynamics (in Polish), WPW, Wrocław 1979.
• [3] S. Ochęduszko, Applied thermodynamics (in Polish), WNT, Warszawa 1967.
• [4] J. P. Perez, I. Prigogine, Thermodynamique, Maison, Paris 1997.
• [5] W. Pudlik, Thermodynamics (in Polish), WPG, Gdańsk 1998.
• [6] J. Rutkowski, The principles of balancing mass, momentum, energy and entropy (in Polish), WPW, Warszawa 1975.
• [7] J. Szargut, Thermodynamics (in Polish), PWN, Warszawa 1998.