Thermal flow and heat performance analyses in circular pipe using different twisted tape parameters based on design of experiments

Al‐Obaidi, Ahmed Ramadhan

doi:10.1002/htj.22641

Cited by 16 publications

(1 citation statement)

References 36 publications

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“…Accordingly, the use of thermal power plant waste heat gains importance for energy efficiency and carbon footprint reduction. In different energy conservation types, heat transfer is a significant field that is directly connected to systems of economic efficiency [4]. With the district heating system (DHS) established with the waste heat of thermal power plants, fossil fuels used in residences and workplaces are not used, and the carbon footprint resulting from heating is significantly reduced.…”

Section: Introductionmentioning

confidence: 99%

The Carbon Footprint Reduction Related to Domestic Heating Using Thermal Power Plant Waste Heat

Şeneren

Yiğit

2023

IJECC

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The carbon emissions created using fossil fuels for energy are the first place the carbon to the environment. Thermal power plants that burn coal or natural gas provide a significant part of this energy. It does not seem possible to avoid thermal power plants in the short term in future policies regarding energy. Thus, using the waste heat of these power plants for domestic heating to reduce carbon emissions for energy production also decreasing the global climate crisis is a critical practice. In terms of reducing the carbon footprint and the adverse effects of thermal power plants these practices are necessary steps. In this study, two scenarios were created to reduce the carbon footprint of heating based on waste heat from the natural gas thermal power plant in Sakarya. This is considered with the district heating system in houses. For domestic heating, natural gas is used in the first scenario, coal is used in the second scenario, and the carbon footprint is determined. Emissions from the power plant's use of coal and natural gas are also determined. District heating using waste heat and its process and installation cost was also analyzed. As a result, it has been revealed that there will be a carbon reduction of 461,161.2 tons/year CO2e when natural gas is not used for domestic heating and 605,159.6 tons/year CO2e when coal is not used. All this is possible by the use of waste heat. The annual carbon emission of the power plant using natural gas was found to be 1,263,260.8 tons/year CO2e, and the emission value was found to be 9,682,554 tons/year CO2e when coal was used in the power plant. The study results will guide policymakers to reduce the carbon footprint of heating using district heating systems, both in Turkey and developing countries where fossil fuel thermal power plants are used.

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Section: Introductionmentioning

confidence: 99%

The Carbon Footprint Reduction Related to Domestic Heating Using Thermal Power Plant Waste Heat

Şeneren

Yiğit

2023

IJECC

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A comprehensive review of methods of heat transfer enhancement in shell and tube heat exchangers

Marzouk

Al-Sood

El‐Said

et al. 2023

J Therm Anal Calorim

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A wide range of studies was conducted to increase the heat transfer rate and reduce the size and cost of shell and tube heat exchangers (STHE). The paper’s contributions lie in its ability to provide a comprehensive, up-to-date, and systematic overview of the various methods available for heat transfer enhancement in STHEs, making it an essential resource for researchers, engineers, and practitioners in the field of heat transfer. The studies that researched the overall heat transfer coefficient (U), number of transfer units, exergy efficiency, pressure drop, and thermal–hydraulic performance were reviewed. There are some advantages of the passive method such as no external needed power and lower operating cost compared to the active methods. The studies broadly support the view that heat transfer enhancement in STHE is heading toward considerable progress. A total of 47.8% of studies have focused on the passive approach, the air injection method, enhancing heat transfer utilizing nanofluids, and compound methods have percentages of studies 20.2, 22.3, and 9.7%, respectively. The air bubble injection causes the rise of the U ratio where the maximum value was indicated at 452% compared to only water flow. Swirl vane, corrugated tube, and wire coil insert have U ratio values of 130, 161, and 264%, respectively. Nanofluid results in a growth in the heat transfer where the TiO2 has the maximum U ratio (175.9%) compared to traditional fluid. The combination of air injection and passive heat augmentation methods, which was shown to be a substantial solution to several issues, needs to be the focus of more work in the future. Geometrical changes in tube surfaces in STHE are too required in the future with the use of materials coating to enhance heat transfer. The theoretical analysis of heat transfer techniques still needs to be improved, especially for pertinent empirical formulations. Also, since there aren’t many relevant numerical simulations, more attention is required.

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Experimental investigation of a novel solar air heater based on heat pipe vacuum tube collector integrated with finned-tube heat exchanger

Sachdeva,

Chandrashekara,

Yadav

2023

J Therm Anal Calorim

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Thermal flow and heat performance analyses in circular pipe using different twisted tape parameters based on design of experiments

Cited by 16 publications

References 36 publications

The Carbon Footprint Reduction Related to Domestic Heating Using Thermal Power Plant Waste Heat

The Carbon Footprint Reduction Related to Domestic Heating Using Thermal Power Plant Waste Heat

A comprehensive review of methods of heat transfer enhancement in shell and tube heat exchangers

Experimental investigation of a novel solar air heater based on heat pipe vacuum tube collector integrated with finned-tube heat exchanger

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