Sets of factors influencing the subsystem objective function of a heater and its efficiency in central water heating systems

Abstract

Due to current world problems existing in space and time as never before, with pronounced ongoing degradation tendencies, the energy efficiency of singular, partial and/or integral energetically active units in the domain of applied thermotechnics in buildings is gaining excessive importance which, as an imperative, obligates the industry to carry out, within the limits of feasibility, sophisticated professional observations to prevent their degradation during the working life. Among the numerous central heating systems, "central water heating systems" are certainly the most common and have the longest application tradition. In the general structural arrangement of these systems at the level of subsystems, there is a recognizable, defined subsystem of equal importance for "releasing heat to the heated space with accompanying fittings." The subsystem objective function is influenced by numerous sets of influencing factors, which can significantly affect the subsystem and integral quality of the implemented system and its efficiency during its intended use. As an active analyst in the field of central heating systems, I approached this research for deontological reasons and intending to improve theory and practice in this field, but also to eliminate any possible errors, doubts, misconceptions, illusions, frauds and/or adverse consequences in the achievement of "energy efficiency" of the defined subsystem. In principle, the following sets of influencing factors have been identified: a set of geometric factors; a set of fluid factors; a set of correlation factors; a set of transmission factors; a set of interior factors; a set of cultural factors; and a set of psycho-physiological factors. The findings indicate, among other things, that accepted partial subsystem units, i.e., the subsystem for "releasing heat to the heated space with accompanying fittings" in the phase of the intended use of the object concerned, has a pronounced impact on the subsystem and integral system energy efficiency.