Experimental assessment of combining geothermal with conventional air conditioner regarding energy consumption in summer and winter

Abstract

The objectives of this study is to evaluate the use of geothermal energy combined with conventional air-conditioner (A/C) and its contribution to reducing dependence on electrical energy. Assessment of geothermal sources in Diyala governorate. This experiment includes installing a combined system in the test room. The indoor and outdoor temperatures and relative humidity were calculated, as well as the calculation of borehole temperature, in addition to the energy efficiency ratio (EER) and coefficient of performance (COP) of the systems. The amount of electricity consumption in kWh was calculated. The most important findings in this experiment are: (1) The temperature of the well at a depth of (6m) is almost constant throughout the year, about 24. (2) Using the geothermal system alone in the test-room reduces the average indoor temperature by 8 within one day. (3) Iraq can benefit from the important geothermal energy and its sources, however, its use is still very limited and limited to scientific research only. (4) The experiment proved that the EER and COP of the geothermal system, the combined system and the window-type air-conditioner are 18.9, 9.8, 9.4, 5.54, 1.9 and 1.52 respectively.

Fault Injection with Multiple Fault Patterns for Experimental Evaluation of Demand-Controlled Ventilation and Heating Systems

“…Antonopoulos et al [ 23 ] proposed an experimental assessment of the energy savings of air conditioning (A.C.). Al-Deen et al [ 24 ] evaluated the energy consumption of HVAC systems under different climate conditions. Vishwanath et al [ 4 ] investigated the HVAC cooling energy consumption and cost associated with experiments conducted in large buildings.…”

“…Experimental evaluations of HVAC systems were carried out in [ 19 , 20 , 23 , 24 ] to monitor the system behavior in the presence of faults. However, in the field of DCV and heating systems, the experimental evaluations of multiple faults in combination with different environmental conditions have not been published and no such experimental data is available.…”

The Contribution of Adsorbent Materials (Silica Gel and Sawdust) in Removing Water Vapor; Iraq as a Study Case

“…Al-Samari [5] had achieved the potential for utilizing geothermal energy for air conditioning in the environment of Iraq. However, the issue of a high level of humidity surfaced after the geothermal system demonstrated its efficacy in providing the space's occupants with a suitable degree of air conditioning [6]. As a result, this study looked into ways to use a Silica gel-Blue to minimize the load of dehumidification on the air conditioner by adsorbing moisture and then drying it using solar energy.…”