Yazar "Çakir U." için listeleme
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Energetic and exergetic comparison of air to air and air to water heat pumps according to evaporator conditions
Çomakli K.; Çakir U.; Şahin E.; Kuş A.C. (Universiti Malaysia Pahang, 2013)This paper presents an experimental energetic and exergetic comparison for a heat pump system that can be run in different modes as air to air and air to water. Components of the heat pump do not change when the running ... -
An experimental exergetic comparison of four different heat pump systems working at same conditions: As air to air, air to water, water to water and water to air
Çakir U.; Çomakli K.; Çomakli T.; Karsli S. (Elsevier Ltd, 2013)In this study, we designed a multifunctional heat pump system using just one scroll compressor and which can be run in four different modes, namely air to air, air to water, water to water and water to air, in order to ... -
The prediction of heat transfer and fluid characteristics for equilateral triangular bodies in tandem arrangement by artificial neural networks
Manay E.; Güneş S.; Akçadirci E.; Özceyhan V.; Çakir U.; Çomakli O. (2012)The objective of this study is to investigate the effect of the spacing between equilateral dual triangular bodies symmetrically placed into the channel axis under steady state conditions on heat transfer and fluid ... -
The relation of collector and storage tank size in solar heating systems
Çomakli K.; Çakir U.; Kaya M.; Bakirci K. (2012)The most popular method to benefit from the solar energy is to use solar water heating systems since it is one of the cheapest way to benefit from the solar energy. The investment cost of a solar water heating system is ... -
The role of cogeneration systems in sustainability of energy
Çakir U.; Çomakli K.; Yüksel F. (2012)Cogeneration system (CHP) is one of the ways to save the energy and use the energy efficiently. When compared to separate fossil-fired generation of heat and electricity, CHP may result in a consistent energy conservation ... -
Using solar greenhouses in cold climates and evaluating optimum type according to sizing, position and location: A case study
This study deals with a comparison among five common greenhouse types with regard to total solar radiation gaining rates in greenhouse using season under some assumptions. Additionally, possibility of using greenhouses in ...