Prediction of the HVAC Energy Demand and Consumption of a Single Family House with Different Calculation Methods

• DOI: 10.1016/j.egypro.2017.03.1121
• Publication Date: 2017-03-30T18:46:59Z
• Authors: Miklos Kassai
• Keywords: Renewable heat; Heating system; ASHRAE 90.1; Single-family detached home; Retrofitting

In this study a comparative energetic analysis is investigated of single family house with different calculation procedures. One the methods that were used Ministry without Portfolio Decree No. 7/2006 for energy certification and MSZ-140-04 demand calculations (by using WinWatt computer software) are widely in Hungarian practice by HVAC designers experts. Passive House Planning Package (PHPP) also more common PC software Hungary due to continuously tightening requirements. To see differences imperfections between these heating, cooling ventilation system was designed given annual consumption methods. perform investigation detailed three heating systems designed. first case heat source condensing boiler operated floor heating. other two cases thermal pumps ceiling an air-to-water system, one geothermal pump. The advantages domestic hot water produced only equipment efficiency. However comparing investment operating costs gas payback time very long based on study. costs, periods evaluating results PHPP tools