Parametric Study: Impact of Selected Factors on the Energy Demand of a Family House

Abstract

Results of a parametric study, which deals with energy demand of family house with different shape factors and thermal properties of the building envelopes will be presented. Basic shape is a single-floored bungalow. Partly two-story and complete two-story house with flat roof are alternatives. Different building envelopes are considered, from the project, upgraded to low-energy house up to nearly-zero energy house. Air change ratio respects required indoor air quality. The natural ventilation and mechanical ventilation with heat recovery were analyzed. Pellets, wood, electric, gas and heat pump were considered as heat sources. Also a combination with solar collectors to decrease energy for hot water preparation was considered. Presented results are in form of delivered energy and primary energy.