Energy &amp; Exergy analysis (Thermodynamic analysis) of a multi-evaporators vapour compression refrigeration system using ecofriendly refrigerants (R410a, R290, R600, R600a, R1234yf, R502, R404a and R152a)

Mishra, R. S.; Chopra, K.

doi:10.36037/ijrei.2019.3510

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…It is important to note that the chemical properties of CuO nanoparticles can be influenced by factors such as nanoparticle size, surface modifications, and surrounding environmental conditions. [5,10] Copper oxide (CuO) nanoparticles have garnered significant attention across various fields due to their unique properties, leading to diverse applications.…”

Section: (Viii) Corrosion Resistancementioning

confidence: 99%

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2024

IJREI

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A fluid or liquid containing nanoparticles-particles smaller than a nanometer-is called a nanofluid. Comparably, a refrigerant with nanoparticles in it is called a nano refrigerant. These refrigerants consist of colloidal suspensions or nanoparticle mixtures created within a primary refrigerant. Carbon nanotubes, carbides, oxides, and metals are the most common materials for nano-refrigerant nanoparticles. The features of the refrigerant suspension of nanoparticles have proven to be unexpected, and their thermal qualities present an unparalleled opportunity for a wide range of applications. This work covers current and future applications in various domains, including mechanical, energy, and biomedical. It represents a theoretical investigation of nano refrigerants' thermal characteristics concerning nanoparticle size and concentration. Finally, the report highlights the directions in which future HFO-based research on the thermal performances of VCRS can go.

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Section: (Viii) Corrosion Resistancementioning

confidence: 99%

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2024

IJREI

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“…As specimen preparation and disclosure are necessary for a range of biological and chemical experiments, mixing and separation are crucial procedures in the majority of lab-on-a-chip platforms [25]. [26] gave an overview of cooling technique in MCHS in various fractal, [27] analysed ejector refrigeration using numerical computation.…”

Section: Introductionmentioning

confidence: 99%

A novel passive micromixer model computational analysis with twist and bend

Mustafa

Zunaid

Gautam

2023

J. Phys.: Conf. Ser.

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A dynamic mixing model for a microfluidic platform that uses bending and twisting characteristic is proposed in this work. The action of twisting and bending on mixing efficient in the microchannel is tested using Navier-Stokes equations. Micromixers being broadly applied in micro total analysis systems (µTAS). Passive micromixers are largely preferred from their heftiness, serenity of amalgamation and cost effective. However rapid mixing in this model is difficult but can be achieved with a twist in the model and offset. From the past study, we know that with a high Reynolds number mixing efficiency effectively improved. Chaotic advection allows the micromixer model to generate secondary flow which led to a drop in high-pressure drop in the model.

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Methods for enhancing thermal performances using ecofriendly R1225ye(Z) refrigerant through nano particles inserted in brine flow evaporator of VCRS

Mishra¹

2020

WPE

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Lot of literature is open on performance enhancement of vapour compression & vapour absorption refrigeration system (VCRS & VARS), in any case, investigators have experienced point by point energetic performances investigation in term of COP of VCRS. Researchers is examined the impact of nanofluids on thermal conductivity enhancement. Nevertheless, researchers had not described exergy principle using entropy generation principle for finding the irreversibility computation in components and system exergy destruction ratio (EDRrational) that can be defined as a rational EDR (i.e. which is a ratio of summation of system’s lost work in terms of exergy destruction of all components to exergy of fuel) as well as EDRsystem (i.e. it is a ratio of total lost work to exergy of product) of VCRS using HFO refrigerants (i.e.R1225ye(Z)) This paper primarily deals with comparison between three nano particles that are utilized in minor circuit of cooling heat exchanger, which improves cooling temperature as a result of enhance in COP. enhancement in first law efficiency (i.e. COP) by using CuO, Al2O3, & TiO2 was evaluated to be as 18.48%, 17.47%, & 15.95%, respectively alongside enhancement in cooling heat exchanger overall heat transfer coefficient by using CuO, Al2O3, & TiO2 was about 107.66%, 98.6%, & 86.4%, respectively. Similarly, enhancement in condenser overall heat transfer coefficient by using CuO, Al2O3, & TiO2 was about 11.24%, 10.77%, & 9.94%, respectively. Also, enhancement in exergetic performance by using CuO, Al2O3, & TiO2 was about 13.93 %, 12.94 %, & 11.49%, respectively.

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Energy & Exergy analysis (Thermodynamic analysis) of a multi-evaporators vapour compression refrigeration system using ecofriendly refrigerants (R410a, R290, R600, R600a, R1234yf, R502, R404a and R152a)

Cited by 3 publications

References 6 publications

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A novel passive micromixer model computational analysis with twist and bend

Methods for enhancing thermal performances using ecofriendly R1225ye(Z) refrigerant through nano particles inserted in brine flow evaporator of VCRS

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