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Many different systems have been used for space heating from the past to the present. Today, due to climate change, the search for low-emission heating systems is increasing day by day. Developments and advantages in heat pump technology have led to the widespread use of heat pump systems. In this study, the heating of a three-floor villa in Izmir’s Alaçatı district was investigated using various heat pump systems, and performance and emission evaluations were performed. The Heating Solutions Navigator program developed by Daikin was used in the calculation of heat loss loads and performance simulations of the villa designed according to TS 825 standards. As a result of the advantages of the high heat transfer surface in underfloor heating, it was determined that the seasonal coefficient of performance (SCOP) value in heating was 2.18 times higher than the systems with low temperature radiators. Increasing the efficiency of the heat pump reduces the annual energy consumption by 2052 kWh and reduces the annual CO2 emissions by 804 kg. It is seen that the high price difference in the initial investment cost of the heat pump underfloor heating system can be compensated by the reduction in the operating cost. As a result, although the investment costs of heat pumps are high compared to natural gas, it is seen that they are an advantageous heating system option because they are clean and reliable, especially when they are used with underfloor heating and low temperature radiators. [ABSTRACT FROM AUTHOR]

In this study, the design of a conventional press used in existing production lines is examined. It is concluded that the required pump flow rate in conventional presses is determined by the return flow requirement. In some cases, it has been observed that the engine power required for return is greater than the engine power required for the work. By adding hydraulic or pneumatic balancing cylinders to the system, weights affecting the hydraulic cylinders were reduced and the return speed in the existing system was increased. While the number of parts produced has increased, the energy consumption in the cycle has decreased. [ABSTRACT FROM AUTHOR]

In this article, a design work which aimed to fulfill residental energy demand with benefiting from renewable energy sources was investigated. In order to have the green building features of this residental house; making the necessary heat insulation, using of electrical appliances in the low-energy class, utilization of materials that recycling and do not harm the environment have been paid attention. Fotovoltaic solar panels were used for electric power, ground source heat pumps and solar collectors were used for heating-cooling and hot water supply, rain water storage system was used for water. It was determined that on-grid system would be more economically advantageous so this system is used in design. It was determined the cost of providing energy saving and the systems were analysed for economical perspective. The systems which are used in green home were estimated payback periods and they were examined the reasonableness of this duration. The analysis concluded that the green home design has been right and it has been described as feasible of green house construction. [ABSTRACT FROM AUTHOR]

The requirement of energy savings are being felt that each passing day. By making thermal insulation in buildings with large proportions of energy saving can be achieved. The law has been made mandatory for heat insulation. This example is a study by selecting the building heat insulation is applied to all the temperature zones, provided that the same components are assumed to be stuck. Annual heating energy needs, building energy classes, cost analysis and payback periods are explored. The differences between regions were analyzed. [ABSTRACT FROM AUTHOR]

In this study, the affect of wind loads was investigated numerically, within the framework of urban regeneration in Istanbul to observe the capability of natural ventilation according to the effects of wind loads acting on striking high-rise buildings which have glass curtain wall systems. Ansys Fluent Computational Fluid Dynamics (CFD) software package program is used in this examination, areas of turbulent kinetic energy, pressure and velocity variations results analyzed in perspective and evaluated the changes in the source. [ABSTRACT FROM AUTHOR]

Despite renewable energy sources have high energy potentials; the lack of continuity of energy due to regional differences is an important problem. The evaluation of energy recovery is primarily more relastic for reducing energy use and the emissions effects caused by energy use in industrial applications In this study, energy-saving potential of the leading sectors are addressed by exergetic approach and the saving potentials can be achieved by recovery potentials are investigated. Besides, the differences between the energy and exergy analysis are also examined. According to the analysis, it is seen that the exergetic losses determined actual irreversibility are higher 3.03 times than the losses depending on the energy analysis. According to the analysis, it is seen that the exergetic losses determined actual irreversibility are higher 3.03 times than the losses depending on the energy analysis. At the end of the study, the need to choose of the exergy analysis in these assessments are emphasized. [ABSTRACT FROM AUTHOR]