Plate heat exchanger design for the utilisation of waste heat from exhaust gases of drying process

Arsenyeva, Оlga; Klemeš, Jiří Jaromír; Kapustenko, Petro; Fedorenko, E. Yu.; Kusakov, Sergiy; Kobylnik, Dmytro

doi:10.1016/j.energy.2021.121186

Cited by 16 publications

(8 citation statements)

References 28 publications

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“…As shown in Fig. (10), the exergy efficiency has a linear slope and an almost constant behavior increasing the hot water mass flow rate when gamma is given.…”

Section: Exergetic Analysismentioning

confidence: 86%

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Energy, Exergy and Exergo-Economic Analysis of an OTEC Power Plant Utilizing Kalina Cycle

Basta

Meloni

Poli

et al. 2021

Glob. J. Energ. Technol. Res. Updat.

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This study aims to analyse an Ocean Thermal Energy Conversion (OTEC) system through the use of a Kalina Cycle (KC), having a water-ammonia mixture as a working fluid. KC represents a technology capable of exploiting the thermal gap of ocean water. This system was then compared with OTEC systems, which exploit ammonia, R134A and butane-pentane mixture as working fluid. The comparison was carried on through energy analysis, exergetic analysis, and exergo-economic analysis using the EES (Engineering Equation Solver) software. For each case study, cost rates and auxiliary equations were evaluated for all components and the mass flow rate and unit exergy cost for each stream. The results showed that the KC with water-ammonia as working fluid achieves the best exergo-economic performance among the examined cycles. The cost of electricity produced through KC using water - ammonia mixture was found to be 26,66 c€/kWh. The thermal efficiency and the exergetic efficiency were calculated and the withdrawal depth of ocean water was considered. The efficiencies resulted to be 3.68% for the thermal efficiency and 95.96% for the exergetic efficiency.

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“…As shown in Fig. (10), the exergy efficiency has a linear slope and an almost constant behavior increasing the hot water mass flow rate when gamma is given.…”

Section: Exergetic Analysismentioning

confidence: 86%

“…The sizing of the evaporator and condenser was performed through an in-house developed procedure, which was derived from [10].…”

Section: Evaporator and Condenser Sizingmentioning

confidence: 99%

Energy, Exergy and Exergo-Economic Analysis of an OTEC Power Plant Utilizing Kalina Cycle

Basta

Meloni

Poli

et al. 2021

Glob. J. Energ. Technol. Res. Updat.

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“…Rotary and stationary regenerators are often employed for ultra-high-temperature waste heat recovery from fouled flue gas (e.g., glass or coke pro-duction) [103]. Their major disadvantages are the large built-up area they require [104] (although comparatively smaller than that of an equivalent recuperative heat exchanger [105]), bypass streams [106], and possible structural issues stemming from the utilization of materials having different thermal expansion characteristics (e.g., ceramic matrices and steel shells) [107]. Recuperative heat exchangers are, according to Jouhara et al [103], most commonly used for medium-and high-temperature waste heat recovery.…”

Section: Regenerative and Recuperative Heat Exchangersmentioning

confidence: 99%

“…Considering cost savings, Akhan and Eryener [108], for example, evaluated the heating of buildings using waste heat recovered from a compressor unit's cooling water in a plate heat exchanger in combination with further heating of the heat carrier in a capillary tube solar collector, and found that it reached 14%/y. The implementation of low-temperature heat recovery is generally limited to using either enhanced (e.g., fins) tubular heat exchangers or plate heat exchangers [104], and necessitates waste heat sources with a low fouling propensity. Similarly, heavily fouled streams that absorb the waste heat [109] and tube-side stream maldistribution [110] can also cause severe issues.…”

Section: Regenerative and Recuperative Heat Exchangersmentioning

confidence: 99%

Industrial Waste Heat Utilization in the European Union—An Engineering-Centric Review

Turek,

Kilkovský,

Daxner

et al. 2024

Energies

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The efficient utilization of waste heat from industrial processes can provide a significant source of energy savings for production plants, as well as be a driver of sustainable operations and the abatement of emissions. Industrial waste heat usually is contained in liquid or gaseous outlet streams. Although the possible ways to utilize waste heat are discussed in a wide variety of papers, these either provide only a general overview of utilization options and opportunities or focus on a narrow range of industrial processes. The aim of the present paper is to discuss the practical aspects of waste heat utilization in the European Union so that the reader can gain perspective on (i) the thermal classification of waste heat, (ii) liquid and gaseous waste streams and their typical temperatures for industrial use cases, (iii) the technical, economic, physical, and environmental aspects barring full utilization of the available waste heat, (iv) waste heat sources in various industries, and (v) standardized equipment and technologies applicable to industrial waste heat utilization, including their advantages, disadvantages, and weak points.

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“…Waste heat recovery can have a significant impact on the energy efficiency of buildings by reducing the heat losses. There are various heat recovery technologies such as waste heat boilers [2], economisers [3], plate heat exchangers [4], heat pipe heat exchangers [5] and others, which all have the purpose to capture the waste thermal energy and convert it to active thermal or electrical energy [6].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of Thermal Performance of an Innovative Waste Heat Recovery System

et al. 2021

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One of the biggest challenges the world is facing these days is to reduce the greenhouse gases emissions in order to prevent the global warming. Since a significant quantity of CO2 emissions is the result of the energy producing process required in industry or buildings, the waste heat recovery is an important aspect in the fight for preserving the planet. In this study, an innovative waste heat recovery system which can recover waste heat energy from cooling liquids used in industry or in different processes, was designed and subjected to experimental investigations. The equipment uses heat pipes to capture thermal energy from the residual fluids transiting the evaporator zone and transfer it to the cold water transiting the condenser zone. The efficiency of the heat exchanger was tested in 9 scenarios, by varying the temperature of the primary agent to 60, 65 and 70 °C and the volume flow rate of the secondary agent to 1, 2 and 3 L/min. The temperature of the secondary agent and the volume flow rate of the primary agent were kept constant at 10 °C, respectively 24 L/min. The results were later validated through numerical simulations, and confirmed that the equipment can easily recover waste thermal energy from used water with low and medium temperatures at very low costs compared to the traditional heat exchangers. The results were promising, revealing an efficiency of the equipment up to 76.7%.

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Plate heat exchanger design for the utilisation of waste heat from exhaust gases of drying process

Cited by 16 publications

References 28 publications

Energy, Exergy and Exergo-Economic Analysis of an OTEC Power Plant Utilizing Kalina Cycle

Energy, Exergy and Exergo-Economic Analysis of an OTEC Power Plant Utilizing Kalina Cycle

Industrial Waste Heat Utilization in the European Union—An Engineering-Centric Review

Experimental and Numerical Study of Thermal Performance of an Innovative Waste Heat Recovery System

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