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    Öğe
    Experimental evaluation of installation cleaning in terms of energy efficiency in individual heating systems
    (Gazi Univ, 2021) Yuruk, Muhammet; Variyenli, Halil; Martin, Kerim; Khanlari, Ataollah
    Various problems and pollution occur in heating sterns over time, especially calcification. This contamination prevents the radiators from dissipating heat, causing the system to operate inefficiently and consume energy. In this study, an experimental research was carried out on the energy efficiency of installation cleaning. In the study, these two situations were compared with the measurements and calculations made before and after the installation cleaning. It has been observed that the cleaning of the installation homogenizes the temperature distribution in the radiator. As a result of the cleaning, an increase of approximately 5 degrees C was obtained in the radiator temperatures. In addition, while a 21.16% reduction was achieved in natural gas consumption, a 17.2% improvement was achieved in the convection heat transfer mechanism in the radiators. In addition, depending on the amount of natural gas used, reductions in the amount of. harmful gases (NO, NOx, CO, CO2 and O-2) released to the environment have been achieved, varying hem cell 3.2%, and 25%.
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    Öğe
    Experimental Evaluation of Installation Cleaning in terms of Energy Efficiency in Individual Heating Systems -2
    (Gazi Univ, 2022) Yuruk, Muhammet; Variyenli, Halil Ibrahim; Martin, Kerim; Khanlari, Ataollah; Aytac, Ipek
    Various problems and pollution occur in heating systems over time, especially calcification. This contamination prevents the radiators from dissipating heat, causing the system to operate inefficiently and consume energy. In this study, an experimental research was carried out on the energy efficiency of installation cleaning. In the study, these two situations were compared with the measurements and calculations made before and after the installation cleaning. It has been observed that the cleaning of the installation homogenizes the temperature distribution in the radiator. As a result of the cleaning, an increase of approximately 5 degrees C was obtained in the radiator temperatures. In addition, while a 21.16% reduction was achieved in natural gas consumption, a 17.2% improvement was achieved in the convection heat transfer mechanism in the radiators. In addition, depending on the amount of natural gas used, reductions in the amount of harmful gases (NO, NOx, CO, CO2 and O-2) released to the environment have been achieved, varying between 3.2% and 25%.
  • [ X ]
    Öğe
    Experimental Investigation of the Effect of Using Thermostatic Radiator Valve on Energy Efficiency in Buildings
    (Gazi Univ, 2022) Karacam, Tuncay; Variyenli, Halil Ibrahim; Martin, Kerim; Khanlari, Ataollah; Aytac, Ipek
    In this study, experiments were carried out in an apartment with a net area of 98.8 m(2) in order to observe the effects of using a thermostatic radiator valve (TRV) on energy efficiency. Experiments were performed with normal valves installed on the radiators, then the existing valves were replaced with thermostatic valves and the experiments were repeated. Thanks to the TRVs, the temperature of each room could be kept constant at the set value and it was observed that a comfortable heating was provided. The use of TRV homogenized the temperature distributions on the radiators and provided natural gas savings by preventing unnecessary heating of the radiator. According to the results obtained, it has been calculated that natural gas consumption can be reduced by 1.4 m(3) per day thanks to TRV. This value means a natural gas saving of 41.82 m(3) per month and 250.9 m(3) with a 6-month usage per year. Considering the current natural gas prices, there is an annual saving of 577.1(sic). A total of 7 thermostatic valves with a unit price of 150 (sic) were installed in the flat and the payback period was calculated as 1.67 years. In addition, it has been observed that a reduction of around 470 kg per year can be made in the amount of CO2 released to the environment due to the decrease in fuel consumption.