This article presents the concepts of an air-source heat pump for simultaneous heating and cooling (HPS) designed for … hotels and smaller residential, commercial and office buildings in which simultaneous needs in heating and cooling are … frequent. The main advantage of the HPS is to carry out simultaneously space heating and space cooling with the same energy …

combined space heating and domestic hot water, in order to provide realistic results, from which four control schemes based on …, in Japan, for the coldest day of the year and for the heating season. Emphasis was given to the short-term domestic hot …

In electric vehicles, air-conditioning (AC) units and electric heaters have been used for dehumidifying and heating the … cabin. However, the air heating process in the electric heater causes higher power consumption due to a lower air … temperature entering the electric heater from the sensible cooling in the humidifying process. In this study, a heat pump (HP) and …

Heating is a major requirement in many regions, and growing energy demands and pollutant emissions have allowed … unconventional heating technologies to be considered, including geothermal. Geothermal heat pumps are reviewed, including heat pump … heating systems are compared in terms of costs, CO2 emissions and other parameters. Geothermal heat pump use is economically …

A study was undertaken to investigate the energy demand for space heating and domestic hot water systems as well as the …

of the cooling unit are a shell and tube adsorbent bed, an evaporator, a condenser, heating and cooling baths …°C evaporator temperatures, the COP of the adsorption cooling unit is approximately 0.25 and the maximum average …In this study, a thermally driven adsorption cooling unit using natural zeolite–water as the adsorbent–refrigerant pair …

system. However, the COP of a GSHP system will be different for heating and cooling mode operations. Hence in order to reduce … analysis, the maximum COP for only heating and only cooling operation are obtained as 4.25 and 3.32 respectively. By making use … of the utility concept both the higher values of COP obtained for heating and cooling modes are optimized to get a single …

four of them commercial PCM, are tested. Since they are PCM to be used for heating and cooling applications they are … coupled to a heating, ventilation, and air-conditioning (HVAC) system such as heat pump. In these systems the PCM is embedded …