نتایج جستجو برای: mixed refrigerant cycle

تعداد نتایج: 491177  

Journal: :gas processing 0
mostafa mafi department of mechanical engineering, imam khomeini international university, qazvin, iran bahram ghorbani department of energy system engineering k.n.toosi gholam reza salehi energy system engineering department, k. n. toosi university of technology, iran majid amidpour k. n. toosi university of technology seyed mojtaba mousavi nayenian energy system engineering department, k. n. toosi university of technology, iran

a refrigeration cycle is a chain of various pieces of equipment including compressors, condensers, evaporators, and expansion devices each of which takes on a particular thermodynamic process duty in the cycle that eventually results in the production of the required refrigeration. the results of optimized mixed refrigerant cycles (mrcs) in part i show that the configuration of mrc is an effect...

Journal: :gas processing 0
mostafa mafi department of mechanical engineering, imam khomeini international university, qazvin, iran majid amidpour faculty of mechanical engineering, k. n. toosi university of technology, tehran, iran mojtaba nayenian faculty of mechanical engineering, k. n. toosi university of technology, tehran, iran gholam reza salehi mechanical engineering department, islamic azad university, nowshahr branch, iran bahram ghorbani faculty of mechanical engineering, k. n. toosi university of technology, tehran, iran

abstract: minimizing the work consumed in refrigeration system is the most effective measure to reduce the cost of products in sub-ambient chemical processes. the introduction of mixed working fluids into refrigeration system in place of pure working fluids is a recent advancement applied in the field. due to the lack of systematic design method for mixed refrigerant cycle (mrc), conventional a...

2011
Kyu-Yeul Lee Ju-Hwan Cha Joon-Chae Lee Myung-Il Roh Ji-Hyun Hwang

The dual mixed refrigerant (DMR) cycle, which pre-cools natural gas with the mixed refrigerants and then liquefies the natural gas with another set of mixed refrigerants, is well known for having the highest efficiency among the liquefaction cycles. Its possible application to LNG FPSO is also extensively investigated. In this study, the optimal operating conditions, such as the equipment’s flo...

Journal: Gas Processing 2013

Abstract: Minimizing the work consumed in refrigeration system is the most effective measure to reduce the cost of products in sub-ambient chemical processes. The introduction of mixed working fluids into refrigeration system in place of pure working fluids is a recent advancement applied in the field. Due to the lack of systematic design method for Mixed Refrigerant Cycle (MRC), conventional a...

2012
N. Austin Dr. P. Senthil Kumar N. Kanthavelkumaran

A household refrigerator designed to work with R-134a was used as an investigation unit to assess the prospect of using mixed refrigerants. The recital of the refrigerator using mixed refrigerant was investigated and compared with the performance of refrigerator when R-134a was used as refrigerant. The effect of condenser temperature and evaporator temperature on COP, refrigerating effect was i...

Journal: Gas Processing 2014

  A refrigeration cycle is a chain of various pieces of equipment including compressors, condensers, evaporators, and expansion devices each of which takes on a particular thermodynamic process duty in the cycle that eventually results in the production of the required refrigeration. The results of optimized mixed refrigerant cycles (MRCs) in Part I show that the configuration of MRC is an eff...

2014
K. Nakatani M. Ikoma K. Arita

four kinds of refrigerant mixtures R22/Rl34a, R22/Rl52a, R22/Rl42b and R22/Rl23, which contain some new halocarbons which are considered to be the alternatives for CFCs, were evaluated in order to realize higher condensing temperature than that using R22 at high temperature operation, and larger heating capacity than that using R22/Rll4 at normal temperature operation. These mixtures were appli...

Journal: :Thermal Science 2021

The selection of proper refrigerants for natural gas liquefaction processes play a key role in cycle?s efficiency. Mixed have been proven to improve exergy efficiency over single pure refrigerant. However, the future some these with higher global warming potential index are unknown due continuous restriction being enforced by energy and environmental agencies past few decades. This study examin...

2017
Christopher R. Laughman Hongtao Qiao Daniel J. Burns Scott A. Bortoff

While the mass of refrigerant contained in a vapor compression cycle has a significant effect on the cycle’s power consumption, conventional cycle architectures cannot optimize energy efficiency by varying the mass as ambient conditions and operational requirements change. This paper proposes a new system architecture that allows the refrigerant mass circulating in the system to be modulated ov...

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