SUSTAINABLE ZERO-ENERGY HEATING OR COOLING AND VENTILATION OF AFFORDABLE HOUSING

Abstract

This paper updates a study to use only onsite renewables to heat or cool water for low temperature (23±3°C) radiators (LTRs) and run water pumps and fans for comfortable, affordable housing. This research is by simulations and experimental houses in Melbourne, Australia which has an annual average temperature of 15°C and tropical Kuching Malaysia. In South East Melbourne, a thermistor at the bottom of a 50m-deep borehole and an Emerson™ recorder recorded the temperature as 17°C. Simulation shows that circulating the water in the U-tube of this vertical ground heat exchanger (VGHE) to floor-LTR, and water heated by solar collector and stored in a 2m3 indoor tank at 50°C by the end of summer t..