PhD in Engineering: Machine learning methods for modelling and optimising CO2 heat pumps (PhD)

For PhD Engineering: Machine learning methods for modelling and optimising CO2 heat pumps, tuition costs 5,006 GBP per year.

Overview

Heat represents nearly half of the world's energy consumption and contributes to almost 40% of energy-related greenhouse gas emissions. Meeting the goal of net-zero emissions by 2050 requires the installation of approximately 600 million heat pumps annually by 2030. Heat pumps using CO2 as refrigerant will have a pivotal role to play in heat decarbonisation.

About this opportunity

The optimisation of operational strategies for CO2 heat pumps through advanced computational methodologies represents a pioneering endeavour in the realm of sustainable heating and cooling technologies. CO2 heat pumps, utilizing carbon dioxide as a refrigerant, offer significant advantages in terms of environmental impact and energy efficiency compared to traditional systems. However, unlocking their full potential requires precise control and optimization of operational parameters. By leveraging advanced computational methodologies this project aims to enhance the operational strategies of CO2 heat pumps across a broader operating range for greener and more sustainable heating/cooling applications.

We are offering a PhD opportunity focused on applying machine learning methods to develop optimal operational strategies for trans-critical CO2 heat pumps. This project is based within the Department of Mechanical and Aerospace Engineering.

The student will have a great opportunity to collaborate with our industry partner isentra Ltd to have access to their substantial dataset of operational parameters from real heat pumps for model validation and optimisation.

The University of Liverpool, founded in 1882 and located in the vibrant city of Liverpool, is a research-intensive institution with a global student body of around 32,000, including approximately 17,700 international students. The university offers a wide range of programs—over 200—across sciences, engineering, humanities, health and business, combining rigorous academics with practical industry links. Its historic campus and city connections provide a lively cultural setting and strong transport links across the UK and beyond.

Research and employability are central to the Liverpool experience, with interdisciplinary projects, industry partnerships and extensive placement opportunities embedded in many degrees. Students benefit from modern facilities, dedicated career services and a supportive academic community that helps translate theory into professional practice. The university's global networks also create exchange and collaboration pathways for study abroad and joint research.

International students receive comprehensive support from pre-arrival guidance to on-campus services, including English language support, visa advice and student societies that foster social integration. Liverpool’s affordable living costs relative to other UK cities, combined with its cultural life and sporting traditions, make it attractive to students seeking a balanced academic and social experience. The University of Liverpool is well-suited to ambitious students aiming for impactful research, strong career outcomes and a cosmopolitan student life.