functions of heating, cooling, and hot water supply was designed and its performance was investigated according to operating … modes. In the cooling-hot water mode, the capacity and COP were enhanced as compared to other modes because the waste heat … from the outdoor heat exchanger was utilized as useful heat in the indoor heat exchanger. In the heating and hot water …

results were obtained in cooling and heating seasons of 2006–2007. A two-dimensional finite element model (FEM) was developed … to simulate temperature distribution development in the soil surrounding the GHEs of GCHPs operating in the cooling and … the heating modes. The finite element modelling of the GCHP system was performed using the ANSYS code. The FEM …

) for various operating modes namely: cooling, heating and simultaneous cooling and heating. Results showed that COP … of condenser water inlet temperature. Actual COP of cooling mode between 1.9 to 3.1 and that of heating mode from 2.9 to … simultaneous space cooling (summer air conditioning) and hot water supply. In order to achieve this objective, a test facility was …

With the improvement of people's living standards all over the world, the demand for cooling (both space cooling and … refrigeration) continues to grow. The increase in cooling-related energy consumption has a growing impact on global climate change …. The importance of improving the energy efficiency of cooling systems is increasing. This paper introduces a series of …

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 …

DXSAHP (direct-expansion solar-assisted heat pump) applied to heating. For this application, the model took into account the …

A solar assisted heat pump is used for different applications, such as, water heating, drying and air conditioning. The …