Heat recovery from a cement plant with a Marnoch Heat Engine

Saneipoor, P.; Naterer, G.F.; Dinçer, İbrahim

doi:10.1016/j.applthermaleng.2011.02.016

Cited by 18 publications

(10 citation statements)

References 11 publications

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“…dT: ss,tube ' tg,r dt* = c t ( i -r * itobe) + q ( :^W /G 2ss,tube ) (12) Using the same dimensionless parameters from …”

Section: Ifi = L-e X P ( -C ; X * ) (22)mentioning

confidence: 99%

“…In the new model presented in this paper, a vari able temperature step change is imposed on the liquid inside the heat exchangers. [11][12][13][14], T-type thermocouples are installed on the heat exchanger shells to measure the compressed air temperatures. This study develops a new integral method to predict the transient flow and temperature behavior of the MHE heat exchanger, which has two single phase fluids and one fluid at a constant temperature.…”

Section: Introductionmentioning

confidence: 99%

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Transient Temperature Response of Variable Flow Heat Exchangers in a Marnoch Heat Engine

Saneipoor

Naterer

Dinçer

2014

Journal of Heat Transfer

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T ran sien t T e m p eratu re R esponse of V a ria b le Flow H eat Exchangers in a M arnoch H eat EngineWithin a Marnoch heat engine (MHE), a water!glycol mixture transfers heat from the heat source into a set o f variable flow heat exchangers and removes heat from adjoining cold heat exchangers. The compressed dry air is used as the working medium in this heat engine. The MHE has four shell and tube heat exchangers, which operate transient and variable flow conditions. A new transient heat transfer model is developed to predict this transient behavior o f the heat exchangers fo r different flow regimes and temperatures. The results from the model are validated against experimental results from an MHE pro totype. The heat transfer model shows 85% agreement with measured data from the MHE prototype fo r the individual heat exchangers. This model can be used fo r similar shell and tube heat exchangers with straight or U-shaped tubes. The heat transfer model pre dicts the gas temperature on the shell side, when a step change is imposed on the liquid entering the tubes. System DescriptionThe MHE is a recently developed new type of heat engine that creates mechanical work from temperature differences. The pres ent prototype of the MHE is composed of four shell and tube heat Journal of Heat Transfer

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“…dT: ss,tube ' tg,r dt* = c t ( i -r * itobe) + q ( :^W /G 2ss,tube ) (12) Using the same dimensionless parameters from …”

Section: Ifi = L-e X P ( -C ; X * ) (22)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transient Temperature Response of Variable Flow Heat Exchangers in a Marnoch Heat Engine

Saneipoor

Naterer

Dinçer

2014

Journal of Heat Transfer

Self Cite

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“…The MHE operates similarly to a Sterling engine in that its cycle contains isothermal expansions and isovolumetric heat additions. However important differences between a Sterling engine and the MHE is that the piston assembly can be located apart from the heat exchangers, and the enclosed area of the P-V diagram for the MHE decreases after each stroke [3].…”

Section: The Marnoch Heat Engine Systemmentioning

confidence: 99%

Software simulation of a Marnoch heat engine

Naughton

Eklund²

2012

2012 25th IEEE Canadian Conference on Electrical and Computer Engineering (CCECE)

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This paper presents a simulation of a Marnoch heat engine prototype made using Ptolemy II, an actor actor-oriented design software. The objective of the simulation is to be useable in helping to design and predict the performance of Marnoch heat engines in a variety of applications. The simulation contains over 40 customizable parameters which allows for easy modification for different applications. Data collected from the current prototype was compared to the results of the simulation. The simulation was found to accurately model the pressure characteristics of the prototype.

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“…The results show that the thermal insulation improves slightly the overall exergy efficiency of the engine and that the exergy destruction increases with hot source temperature. Saneipoor et al [19][20][21] studied experimentally a low temperature heat engine (temperature difference below 100 K, for a maximum temperature of about 393 K), called a Marnoch heat engine (MHE). They found that the exergy efficiency of the MHE goes up to 17%.…”

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confidence: 99%

Comparison Based on Exergetic Analyses of Two Hot Air Engines: A Gamma Type Stirling Engine and an Open Joule Cycle Ericsson Engine

Hachem

Creyx

Gheith

et al. 2015

Entropy

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Abstract:In this paper, a comparison of exergetic models between two hot air engines (a Gamma type Stirling prototype having a maximum output mechanical power of 500 W and an Ericsson hot air engine with a maximum power of 300 W) is made. Referring to previous energetic analyses, exergetic models are set up in order to quantify the exergy destruction and efficiencies in each type of engine. The repartition of the exergy fluxes in each part of the two engines are determined and represented in Sankey diagrams, using dimensionless exergy fluxes. The results show a similar proportion in both engines of destroyed exergy compared to the exergy flux from the hot source. The compression cylinders generate the highest exergy destruction, whereas the expansion cylinders generate the lowest one. The regenerator of the Stirling engine increases the exergy resource at the inlet of the expansion cylinder, which might be also set up in the Ericsson engine, using a preheater between the exhaust air and the compressed air transferred to the hot heat exchanger. OPEN ACCESSEntropy 2015, 17 7332

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Heat recovery from a cement plant with a Marnoch Heat Engine

Cited by 18 publications

References 11 publications

Transient Temperature Response of Variable Flow Heat Exchangers in a Marnoch Heat Engine

Transient Temperature Response of Variable Flow Heat Exchangers in a Marnoch Heat Engine

Software simulation of a Marnoch heat engine

Comparison Based on Exergetic Analyses of Two Hot Air Engines: A Gamma Type Stirling Engine and an Open Joule Cycle Ericsson Engine

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