Performance Analysis of a Reciprocating Piston Expander and a Plate Type Exhaust Gas Recirculation Boiler in a Water-Based Rankine Cycle for Heat Recovery from a Heavy Duty Diesel Engine

Latz, Gunnar; Erlandsson, Olof; Skåre, Thomas; Contet, Arnaud; Munch, Karin

doi:10.3390/en9070495

Cited by 16 publications

(6 citation statements)

References 18 publications

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“…Therefore, they fit better to small scale ORCs. Piston [55][56][57][58][59][60][61], screw [62][63][64][65][66], scroll [67][68][69][70][71][72][73], lobe [74,75] and multi-vane [25] expanders can be applied in domestic ORCs. These expanders are at different stage of development.…”

Section: Design Considerations and Comparison Of Different Domestic Cmentioning

confidence: 99%

Domestic Organic Rankine Cycle-Based Cogeneration Systems as a Way to Reduce Dust Emissions in Municipal Heating

Kolasiński

2020

Energies

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Environmental issues are nowadays of great importance. In particular air and water quality should be kept at as high levels as possible. Energy conversion systems and devices which are applied for converting the chemical energy contained in different fuels into heat, electricity and cold in the industry and housing are sources of different gases and solid particle emissions. Medical data show PM2.5 dust in particular is highly dangerous for human health. Therefore, limiting the number of low-quality fuel combustion processes is a key issue of modern energy policy. Statistical data show that domestic heating systems account for a large share of the total emissions of PM2.5 and PM10 dust. For example in Poland in 2017, the share of households in the total annual emissions of PM2.5 dust was equal to ca. 35.8%, while the share of PM2.5 emission in industry (i.e., power generating plants, industrial power plants and technologies) was equal to only 23.6%. A possible way of solving this problem is by the successful replacement of old domestic furnaces by combined heat and power (CHP) or multigeneration boilers which can be used for heating the rooms and sanitary water and generating electricity and cold. Such systems can possibly contribute in the future to significant reductions of dust emissions and air pollution in urban and rural areas by limiting the number of low-quality fuel combustion processes. This article presents design considerations and experimental results related to a domestic micro-CHP unit which is based on organic Rankine cycle (ORC) technology. The main aim of the design works and experiments was therefore the analysis of the possibility of integrating the ORC system with a standard domestic central heating gas-fired boiler. The specially designed micro-ORC system was implemented in the laboratory and experiments were performed using this test stand. The main design aims of the test-stand were: low operating pressure, small working fluid flow, low price and compact dimensions. To meet these aims, volumetric machines were chosen as the expander and working fluid pump. The experimental results were positive and show that it is possible to integrate an ORC system with a standard domestic central heating gas boiler. For different heat source temperatures, the obtained expander power ranged from 109 W to 241 W and the thermodynamic cycle efficiency ranged from 4.3% to 8.8%. These positive research results were achieved partly thanks to the positive features of the different system subassemblies.

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Section: Design Considerations and Comparison Of Different Domestic Cmentioning

confidence: 99%

Domestic Organic Rankine Cycle-Based Cogeneration Systems as a Way to Reduce Dust Emissions in Municipal Heating

Kolasiński

2020

Energies

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“…Combining Equations (1) and (6), Equation 7is obtained. From Equation 7, the in-cylinder pressure is related to the heat release rate of the fuel, heat transferred to the cylinder wall, stroke volume, and specific heat ratio.…”

Section: Engine Model Descriptionmentioning

confidence: 99%

“…As fuel consumption and emissions regulations are becoming more stringent, energy saving and emissions reduction have become the impetus for development and the goal of modern internal combustion engines [1,2]. Various technologies have been proposed to achieve this goal, such as turbocompounding [3], Miller cycle [4], exhaust gas recirculation (EGR) [5], waste heat recovery [6,7], use of alternative fuel [8], and so on. Water injection, another useful technology to improve engine performance and reduce emissions, has also been widely researched.…”

Section: Introductionmentioning

confidence: 99%

Investigation of In-Cylinder Steam Injection in a Turbocharged Diesel Engine for Waste Heat Recovery and NOx Emission Control

Zhang

Li-fu

2018

Energies

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In this study, an in-cylinder steam injection method is introduced and applied to a turbocharged diesel engine for waste heat recovery and NO x emission reduction. In the method, cool water was first heated into superheated steam by exhaust. Then the superheated steam was directly injected into the cylinder during the compression stroke. The potential for fuel savings and NO x emission reduction obtained by this method was investigated. First, a two-zone combustion model for the baseline engine was established and calibrated with the experimental data. Based on the model, the effects of steam injection mass, temperature, and timing on engine performance and NO x emission were investigated. The results demonstrate that in-cylinder steam injection can improve engine performance and reduce NO x emissions significantly at all engine speeds. Optimal steam injection mass is obtained under full load at engine speed from 1000 rpm to 1900 rpm when the steam injection timing and temperature are −30 • and 550 K, respectively. Under those conditions, engine torque is increased by 9.5-10.9%, brake-specific fuel consumption (BSFC) is reduced by 8.6-9.9%, and NO x emission is decreased by 83.4-91.8%. Steam injection mass and injection timing are the main parameters that significantly affect engine performance and NO x emission.

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“…Latz et al [25] conducted a performance assessment of a reciprocating piston expander used in a steam Rankine cycle for heat recovery from a heavy-duty diesel engine. The expander had a compression ratio of 21 together with a steam outlet timing that caused high re-compression.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of a reciprocating piston expander with variable valve timing for small-scale organic Rankine cycle power systems

et al. 2019

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Performance Analysis of a Reciprocating Piston Expander and a Plate Type Exhaust Gas Recirculation Boiler in a Water-Based Rankine Cycle for Heat Recovery from a Heavy Duty Diesel Engine

Cited by 16 publications

References 18 publications

Domestic Organic Rankine Cycle-Based Cogeneration Systems as a Way to Reduce Dust Emissions in Municipal Heating

Domestic Organic Rankine Cycle-Based Cogeneration Systems as a Way to Reduce Dust Emissions in Municipal Heating

Investigation of In-Cylinder Steam Injection in a Turbocharged Diesel Engine for Waste Heat Recovery and NOx Emission Control

Experimental and numerical analysis of a reciprocating piston expander with variable valve timing for small-scale organic Rankine cycle power systems

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