Sürdürülebilir Kalkınma Amaçları
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- MakaleAçık Erişim2024Scopus SJRQ3Investigation of the Effects of a Self-Heated Vest on Vital Values of Individuals: A Case Study on Public Health
Öztekin, Erman Kadir; Demirci, Emre
With the adaptation of portable and harmless technological devices to clothing products, self-heating outdoor products are becoming more common in the market. These products can produce heat energy on their own, unlike standard thermally insulated products. In this way, it contributes to the thermal comfort of people in situations where the environment cannot be conditioned. In this study, the effects of these products, which are in close contact with the human body, on human health were measured through vital values. Measurements were collected from the same group of individuals at three different time intervals over 30 minutes. Significant differences between the obtained data were examined using the Friedman test and detailed using Wilcoxon Signed Rank test. While a significant difference was observed in systolic blood pressure, diastolic blood pressure and body temperature data, no significant difference was found in oxygen saturation and pulse data. As for the actual changes, no serious effects on human health were observed based on the vital values presented in the study.
- MakaleAçık Erişim2024Scopus SJRQ3Thermoeconomic Analyses of Heat Pumps
Öztekin, Erman Kadir; Gür, Mehmet Murat; Karaali, Rabi
Recently, the rapid development of technology and the increase in energy costs and needs have made reducing the costs and efficient use of energy and exergy important. The thermoeconomic analysis method, which is the best cost analysis method of energy and exergy, gives the ways to reduce costs and increase efficiency that can be applied a facility. It has been found that the most suitable thermoeconomic solution for winter heating and summer cooling of a facility is a vertical underground source heat pump and the most high-performance working fluid that should be used is R32. If the heating is done with a ground source heat pump instead of electrical energy, 4.25 kW of heating energy will be obtained for each kW of electrical energy given for heating, since the costs are COPIP 4.25. Here the earnings increase by around 325%. In other words, heating costs decrease by around 77.5 percent, that is, from one hundred liras to 22. 5 liras.
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