Category: Papers 2024

Table of contents INTRODUCTION In recent decades, the rapid development of industrialization and urbanization has resulted in enormous energy consumption. Faced with the energy crisis, people are paying more attention to energy conservation and emission reduction. Therefore, in 2015, the Paris Agreement proposed to control the increase in global average temperature within 2 ℃. Similarly,…

Table of contents The Mobile Air Conditioning system (MAC) with its direct and indirect emissions has still a relevant environmental impact, this, despite the relevant and effective efforts made in the last decades for reducing it. Last developments and agreements on GHG (Green House Gases) and other environmental issues are asking for achieving the total…

Table of contents ABSTRACT This study explores a dual-source heat pump design utilizing CO2 as the refrigerant. The innovation lies in the possibility to operate the heat pump in three distinct evaporation modes: air-mode, solar-mode, and a simultaneous-mode using both thermal sources. The experimental data reported in this work confirms that the operation in simultaneous-mode…

ABSTRACT In the heating and cooling sectors, heat pump technology has become a cornerstone of the global energy landscape, playing a crucial role in the future energy transition and decarbonization efforts. However, stringent regulations are being introduced to reduce both the direct and indirect environmental impacts, enhancing system performance and limiting the use of some…