Performance investigation of a thermal‐driven refrigeration system

Zhu, Linghui; Wang, Shujun; Gu, Junjie

doi:10.1002/er.1408

Cited by 14 publications

(4 citation statements)

References 13 publications

(14 reference statements)

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“…The above two equation are obtained by Zhu [23] with source data are taken from the properties of R-717 (ANHYDROUS AMMONIA) [3], and the coefficient di is listed in Table 2. 4.4644*10 0 1.2839*10 0 -3.3129*10 2 2 2.3652*10 -4 6.2790*10 -3 -1.1501*10 -2 2.6189*10 0 3 1.6132*10 -6 1.4591*10 -4 -2.1523*10 -4 -1.1045*10 -2 4 2.4303*10 -9 -1.5262*10 -6 1.9055*10 -6 2.6214*10 -5 5 -1.2494*10 -11 -1.8069*10 -8 2.5608*10 -6 -3.3202*10 -8 6 1.9054*10 -13 1.9054*10 -10 -2.5964*10 -10 1.7539*10 -11…”

Section: Thermodynamic Analysismentioning

confidence: 99%

Thermodynamic Analysis of a Power Plant Waste Heat Driven Absorption Refrigeration System

Mehyo¹,

Özcan²,

Hassan³

2018

World Congress on Mechanical, Chemical, and Material Engineering

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Assessment of the exergetical and energical performance of a single-stage NH3-NaSCN absorption refrigeration system has carried out for the effective recovery of low-temperature waste heat of the drainage tanks in AL-Zara thermal power plant in Hama, Syria. Thermodynamic analysis, both first and second law, has employed to be a tool for consideration of the quantity and quality of energy in the thermal system. Exergy analysis has determined the destruction and losses of exergy in various components and hence in the overall system. The thermal properties, entropy, and exergy of the working mixture have also calculated to analyze irreversible loss in system components under operating conditions by MATLAB® computer program. The obtained numerical results for the cycle have tabulated where the coefficient of performance and the coefficient of performance for heating have reached up to 0.55, 1.55 respectively. The efficiencies of the second law of thermodynamics for cooling and heating applications have reached up to 0.295, 1.295 respectively.

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Section: Thermodynamic Analysismentioning

confidence: 99%

Thermodynamic Analysis of a Power Plant Waste Heat Driven Absorption Refrigeration System

Mehyo¹,

Özcan²,

Hassan³

2018

World Congress on Mechanical, Chemical, and Material Engineering

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“…The hybrid-active solar system gave more than 3.5 times yield than the passive solar still [4]. Other recent work has shown that a thermal-driven refrigeration system using a new sorbent-sorptive as the working pair has achieved lower generator, lower evaporator temperatures, and higher coefficient of performance [5]. Such creative applications continue paving the way for newer solar applications.…”

Section: Introductionmentioning

confidence: 95%

Low-grade heat-driven Rankine cycle, a feasibility study

Husband

Beyene

2008

Int. J. Energy Res.

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SUMMARYConversion of low-grade heat to high-quality energy such as electricity using the Rankine cycle poses serious challenges. When such conversion is possible, it is invariably expensive or unacceptable due to environmental concerns associated with the working medium. The low-grade heat can either be from exhaust systems or from solar radiation. Thus, the topic addresses a very useful subject, combining energy efficiency and renewable energy. Although high-grade heat recovery and energy conversion is a mature technology widely covered by the literature, low-grade energy conversion, especially using thermodynamic cycles, has not been sufficiently addressed to date. This paper addresses the feasibility of a low-grade heat-driven Rankine cycle to produce power using a scroll expander, a low toxicity, low flammability, and ozone-neutral working fluid. A cost benefit analysis of the recommended system shows that it is a viable option for solar power generation, at about one-third the cost of a comparable photovoltaic system.

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“…With ammonia + sodium thiocyanate as a working fluid, several researchers − have presented the analysis and simulations of thermodynamic cycles for a cooling system at low temperatures and heating applications with heat pumps, comparing this mixture with other, like NH 3 + H 2 O and NH 3 + LiNO 3 . All of these studies have used thermophysical properties proposed by Infante Ferreira, who presented different correlations for each property based on the previous data for the NH 3 + NaSCN mixture and properties for pure ammonia.…”

Section: Introductionmentioning

confidence: 99%

Densities, Viscosities, Heat Capacities, and Vapor–Liquid Equilibria of Ammonia + Sodium Thiocyanate Solutions at Several Temperatures

2011

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Several thermophysical properties were experimentally measured for the ammonia + sodium thiocyanate mixtures at several temperatures: density from (269.4 to 350.9) K, dynamic viscosity from (269.8 to 369.5) K, and isobaric heat capacity from (304.17 to 364.15) K, all them at a constant pressure of 3 MPa, and vapor–liquid equilibria from (253.1 to 393.1) K. All properties were measured in a range of composition from 0.35 to 0.90 in ammonia mass fraction. The experimental techniques used were a vibrating-tube densimeter, a piston-style viscometer, a heat flux Calvet-type calorimeter, and a static method, respectively. The measured data were correlated as a function of temperature and composition using empirical equations and were compared with literature values.

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Performance investigation of a thermal‐driven refrigeration system

Cited by 14 publications

References 13 publications

Thermodynamic Analysis of a Power Plant Waste Heat Driven Absorption Refrigeration System

Thermodynamic Analysis of a Power Plant Waste Heat Driven Absorption Refrigeration System

Low-grade heat-driven Rankine cycle, a feasibility study

Densities, Viscosities, Heat Capacities, and Vapor–Liquid Equilibria of Ammonia + Sodium Thiocyanate Solutions at Several Temperatures

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