Abstract
Heat Pumps are becoming one of the most considered mechanical conditioning equipment in our buildings. While they are popular, there appears to be quite a vast range of system types and applications in building conditioning. This paper primarily reviews the literature on heat pumps, the various types, and the consideration of design end uses. The fact that there are different energy sources for heat pumps is considered, as well as the different sinks in which energy is stored or dissipated. It is evident that advanced heat pump systems cater well to the use of renewable energy resources. Therefore, in the move towards net-zero energy building operation, the correct selection of a heat pump can help to increase self-consumption of solar PV generation and even make use of direct solar energy heating. This paper reviews the technologies for heat pump selection, application, and design for residential buildings.
Highlights
Why Heat Pumps?Our world is facing two main problems: energy challenges and climate change [1,2,3]
The results showed that water to air and water to water heat pumps yield the two highest Coefficient of Performance (COP) of 3.94 and 3.73 greater than 3.54 and 3.4 of an air-to-air heat pump and air-to-water heat pump
The results showed that the cascade air-to-water heat pump yielded a COP lower than 2.5 at ambient temperatures of −11.2 ◦C to 29.5 ◦C, and its operating costs were higher than gas boilers and 90% efficiency oil boilers, but its carbon emissions were 14% and 57% less than gas and oiler boilers, respectively
Summary
Why Heat Pumps?Our world is facing two main problems: energy challenges and climate change [1,2,3]. The building sector, especially the residential sector, dramatically contributes to energy use and greenhouse gas (GHG) emissions. The residential sector represents 25.4% of final energy use and 20% GHG emissions in the European Union (EU) [4,5]. Space heating, cooling, and hot water heating contribute about 65% of total energy consumption in Australian households [7]. To alleviate the impact caused by the energy crisis and climate change, the EU Parliament and Council have enacted several directives and rules which aim to reduce GHG emissions by 90% by 2050 [8]. The Australian government has ratified and signed the Kyoto Protocol, which commits to reducing GHG emissions by 60% by 2050 compared to 2000 levels [9]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
