A comparative thermodynamic and economic analysis and assessment of a conventional HVAC and a VRF system in a social and cultural center building
| Autor: | Oğuzhan Dağcı, Emrah Özahi, Aysegul Abusoglu, A. İhsan Kutlar |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry 020209 energy Mechanical Engineering Cultural center Mechanical engineering 02 engineering and technology Building and Construction Energy consumption Cooling capacity Profit (economics) Reliability engineering 020401 chemical engineering Economic recovery Heat transfer HVAC 0202 electrical engineering electronic engineering information engineering Economic analysis 0204 chemical engineering Electrical and Electronic Engineering business Civil and Structural Engineering |
| Zdroj: | Energy and Buildings. 140:196-209 |
| ISSN: | 0378-7788 |
| DOI: | 10.1016/j.enbuild.2017.02.008 |
| Popis: | HVAC systems in buildings are composed of many subcomponents which consume energy in huge amounts. In recent years, energy consumption becomes very important aspect due to the lack of energy resources and environmental reasons. In terms of energy consumption, the components of HVAC systems account for large portion of total energy used in buildings. Therefore optimization of energy consumption in HVAC applications is an essential requirement in terms of thermodynamic and economic point of views. Besides, the efforts for decreasing energy consumption turn into economic recovery. It also provides benefits for human health and cleaner environment. In this paper, as originality, thermodynamic and economic analyses of an existing social and cultural building which has a heating and cooling area of 8852 m 2 are presented by comparing of a conventional HVAC and a VRF system. A novel contribution is given to the open literature by comparing two systems with actual data measured from the existing system. The other originality is to apply and test a VRF system to a complex-structured building. This study is a rare one which contains insulation, heating and cooling accounts of a building together. In this paper, VRF system is modelled to the existing building for the comparison of the conventional HVAC system. Both systems have been compared in terms of heating and cooling capacity, initial, operation and maintenance costs. It is found that the VRF system is more economic and efficient such that the VRF system is found to have 44% cost profit when compared with the conventional HVAC system. |
| Databáze: | OpenAIRE |
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