New method for calculating hourly energy need in HVAC systems

Horvat, Ivan and Dović, Damir (2015) New method for calculating hourly energy need in HVAC systems. = New method for calculating hourly energy need in HVAC systems. In: 23. međunarodni simpozij o grijanju, hlađenju i klimatizaciji = 23rd international symposium on heating, refrigerating and air conditioning, 23.04.2015., Zagreb; Croatia.

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Abstract

This paper presents a new methodology for calculation of hourly energy need, which is incorporated in Croatian national Algorithms, used for energy performance certification of buildings. In the paper, the simple hourly method from HRN EN ISO 13790 standard, used for calculation of hourly energy need for heating and cooling, is demonstrated. Also, the new approach for determining the energy need for mechanical ventilation, introduced in Algorithm for calculation of the energy need in HVAC systems, is described. This new approach enables use of demonstrated simple hourly method in the calculations of HVAC systems. The given calculation examples are performed for a Croatian reference dwelling, equipped with two different HVAC systems. The calculation results are compared against those obtained from the quasi-steady state monthly method, also described in Algorithms.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): energy need for heating and cooling; HVAC systems; energy performance certification of buildings; simple hourly method
Subjects: TECHNICAL SCIENCE
Divisions: 300 Department of Thermodynamics, Thermal and Process Engineering > 320 Chair of Thermal and Process Engineering
300 Department of Thermodynamics, Thermal and Process Engineering > 310 Chair of Technical Thermodynamics
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 13 May 2015 09:54
Last Modified: 08 Feb 2017 09:28
URI: http://repozitorij.fsb.hr/id/eprint/4117

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