Bu çalışma, ara soğutmalı ve ara ısıtmalı Brayton çevriminde ara soğutucu olarak kullanılan organik Rankine çevriminin birinci ve ikinci yasa analizini. yüksek verimin kazanda, ekserji analizinde ise bunun tersi bir durum görülmüştür . Anahtar Kelimeler: HVAC, enerji analizi, ekserji analizi, ısıtma sistemleri. Bu makalede, soğutucu akışkan olarak Ra’nın kullanıldığı bir otomobil klima sisteminde enerji ve ekserji analizi ile uğraşılmıştır. Otomobil klima sisteminin.

Author: Yozshunris Tobei
Country: Nigeria
Language: English (Spanish)
Genre: Video
Published (Last): 25 January 2005
Pages: 141
PDF File Size: 9.61 Mb
ePub File Size: 14.99 Mb
ISBN: 966-1-37615-910-7
Downloads: 90802
Price: Free* [*Free Regsitration Required]
Uploader: Gardashakar

Skip to main content. Log In Sign Up. Email Location Kocaeli, Kocaeli, Turkey. His areas of anakizi His areas of interests are thermodynamics, thermodynamics of power production, thermodynamics of cooling systems, heating of metals and HVAC systems.

He leads the Board of University-Industry Collaborations. Analysis of the effect of construction parameters on energetic and exergetic efficiency of induction air heaters more. This anzlizi is concerned with the energy and exergy efficiency analysis of a novel air heater that operates with induction principle. The aim of this paper is investigation of the energy and the exergy efficiency augmentation of the new The aim of this paper is investigation of the energy and the exergy efficiency augmentation of the new K-1 induction air heater prototype.

Energy and exergy performance of the K-1 prototype was analysed and compared with the previous K-0 prototype. The analyses were performed with experimental study and with computational fluid dynamics CFD simulations.

The new design boosted the energy efficiency about The exergy efficiency was calculated to be around The inlet temperature increase negatively affects the energy and the actual exergy efficiencies.

It was concluded that efficiencies of these heaters can be enhanced with more appropriate construction. In this paper, a user-friendly algorithm was developed by analysis of induction heating of aluminium in a radial direction using analytic, numerical and experimental methods. The aim of this study was to investigate the design data The aim of this study was to investigate the design data required for the coil and the power supply. The mathematical model of the heating process was simplified into one dimension.

The general equation of heat conduction was solved analytically in cylindrical coordinates.

The results are validated with the results of experimental and numerical methods. An important benefit of this paper is the homogenization time coefficient that is a useful tool for calculating the total eksdrji time. Finally, qnalizi basic and userfriendly method was described to investigate the length of a tunnel-type induction furnace coil design. This study represents an experimental and numerical investigation of the enhanced prototypes of the induction air heaters.

For this purpose, flow field is enhanced in order to avoid turbulence.

The air mass flow rate, outlet construction The air mass flow rate, outlet construction and the application of insulation of the outer surface of the heater were selected as the performance enhancing parameters.

Depending on the exit construction, the new designed prototypes are named as K-2 and K Experiments were performed under two groups for three various flow rates. In the first group, non-insulation situation is examined. In the second group tests, insulation is applied to the outside of windings and inlet-outlet flaps which constitute the boundary of the control volume for the prevention of heat losses. It was observed that the thermal power transferred to air with the new prototypes increased about W more than the previous designs.

The thermal efficiencies of the K-2 and K-3 type heaters were calculated as Gas turbines are widely used in the energy production. The anallizi of the operating machines requires a special attention for prediction of power production in the energy marketing sector. Thus, the aim of this paper is to support the Thus, the aim of wnalizi paper is to support the sector by making the prediction of power production more computable. By using the data from an emserji power plant, correlation and regression analysis are performed and linear equation obtained for calculating useful power production vs atmospheric air temperature and a novel method, the gas turbine degree day method, was developed.


The method has been addressed for calculating the isolation related issues for buildings so far. But in this paper, it is utilized to predict the theoretical maximum power production of the gas turbines in various climates for the first time.


The results indicated that the difference of annual energy production capacity between the best and the last province options was calculated to be MWh approximately. ABSTRACT In this study, it was aimed to investigate the heat losses and efficiencies during the transient condition of an induction air heater prototype experimentally. The study was carried out by applying 4 various protocols in the experiments.

The results were analyzed according to 1st. Law of Thermodynamics and the thermal losses from the system were calculated during the transient condition. It was found that the system reached to a steady state min earlier in protocol 4 than the other protocols. The highest annual operational cost was calculated to be ,21 in kWh’s for protocol 1.

The lowest annual operational cost was calculated to be kWh for protocol 4. This paper In Turkish is about the transient condition of a novel type induction air heater. I highly recommend this subject to researcher since it is an untouched subject. Efficiency analysis of induction air heater and investigation of distribution of energy losses more. In this study, an induction air heater prototype that is designed to supply hygienic air analkzi analysed.

The purpose of this paper is to determine the distribution of energy losses and investigate the effects of inducer discs on the thermal The purpose of ekserui paper is to determine the distribution of energy losses and investigate the effects of inducer discs on the thermal efficiency of the prototype.

The analysis was carried out by applying the 1st Law of Thermodynamics. In the study, the natural convection and radiation losses, the discharge losses and the losses due to kinetic energy were calculated and presented. It was seen that utilizing the discs decreased the efficiency and the total energy loss was reduced as the number of discs was decreased.

I highly recommend heating air with induction principle to the researchers since it is an untouched subject. EksrjiEkserjiand Termodinamik Analiz. The second law analysis can be used to calculate the system performance based on exergy. Exergy analysis is the combination of the first and second laws of thermodynamics and is defined as the maximum amount of work potential of a Exergy analysis is the combination of the first and second laws of thermodynamics and is defined as the maximum amount of work potential of rkserji material or an energy stream, in relation Evaluating thermal environments for sitting and standing posture more.

The human thermal environment can be represented by the air temperature, radiant temperature, air velocity, humidity, clothing and activity. This has implications for health, comfort and performance. An understanding of human An eserji of human thermoregulatory processes facilitates the design and development of improved heating and cooling systems.



This study presents a computational model of thermal interactions between a human and the interior environment. The model is based on the heat balance equation for human body with different types of clothing ensembles, combined with empirical equations defining the sweat rate and mean skin temperature.

Simulation has been performed by the use of steady state conditions, and two different posture positions, namely sitting and standing, are considered in this study. Results are in good agreement with available experimental data. The parametric studies show that the methodology described can provide an effective means for simulating thermal comfort level. Thermodynamics and Human Thermal Comfort. Second law based thermoeconomic analysis of combined cycle power plants considering the effects of environmental temperature and load ejserji more.

Thus, this paper focuses on the investigation of the magnitude of the Thus, this paper ekserui on the investigation of the magnitude of the change in costs with respect to load and environmental temperature variations. To achieve the objective, a useful and simple second law based thermo-economic model with instant access to production costs is introduced and generalized.

The presented exergy costing method indicates that the cost of reversible power is the theoretically minimum cost, where the reversible power is the theoretical maximum power that can be gained from a thermal system.

The effects of load and environmental temperature variations on costs are discussed and presented. It is shown that the augmentation in the costs are not continuous with the environmental temperature decrease. Thermal EngineeringThermodynamicsand Thermal comfort. Energy and exergy based analysis in thermal systemsThermodynamic analysisand Second Law of Thermodynamics. The electricity consumption of Turkey anaalizi duplicate until It can be seen that this situation is It can be seen that this situation is leading towards the use of domestic renewable energy resources to meet the increasing energy demand.

This paper focuses on the place ajalizi small hydro schemes in the energy policy of Turkey. The given data were derived from the projection reports, strategic plans, action plans and activity reports of the state authority companies. The goal of this research is to detail the small hydropower potential in Turkey, to value the benefit of small hydropower in achieving the target of Turkey Due to the rapidly increasing demand for energy and insufficiency of existing resources, it is a necessity to use available sources efficiently.

In this direction, first ekseeji should be the monitoring the current energy consumption in any In this direction, first step should be the monitoring the current energy consumption ahalizi any industry.

Hence, in this study a firm in the steel industry is chosen for case study. Firstly, energy usage of each machine at each department rkserji each part is calculated from previously available data.

In addition, HORUS provides energy labels and important statistics such as required work force and costs for each department. With parallel to industrial developments, for sustainability of modern life and duration of manufacturing activities, constancy of reliable energy is very important. This means, supplying of energy at required amount on demand. Thermal power plants and renewable energy sources, cannot respond fast and reliable to the fluctuating demand during the day.

Because of this energy storage, is a necessary subject to focus on for countries.