Paper Conference

Proceedings of eSim 2006: 4th Conference of IBPSA-Canada

     

MODELLING AND TECHNICAL FEASIBILITY ANALYSIS OF A LOW-EMISSION RESIDENTIAL ENERGY SYSTEM

J. Good, V. Ugursal, A. Fung

Abstract: The residential sector contributes 17 per cent of Canada's secondary energy use, with more than 80 per cent of this contribution allocated to space and domestic hot water heating. Technological advancements in low-grade residential heat sources and distribution systems coupled with distributed renewable energy generation create an opportunity for overall end-use energy savings in the residential sector. In this work, an energy-efficient, renewable energy based HVAC and DHW heating system for houses is proposed and modelled to assess its end-use energy savings potential. For this purpose, an integrated building model was developed using the open-source building simulation software ESP-r to simulate the proposed system. The system consists of a ground heat exchanger, ground source heat pump, in-floor radiant heating, and a heat recovery ventilation system. The proposed DHW system utilizes the excess thermal energy from the heat pump to preheat the domestic hot water. As well, a renewable energy source in the form of photovoltaic generation and netmetered grid storage were modelled to compliment the building's electrical network. A building simulation of a common energy-efficient home in central Canada revealed that potential enduse energy savings of 50 per cent were attainable when the proposed HVAC system was compared with the base case scenario. Incorporating modest renewable energy generation furthered the net energy savings potential to over 60 per cent.
Pages: 17 - 24
Paper:
esim2006_017_024