What risk of fouling exists in a fin and tube heat exchanger of a paper drying humid exhaust gas?
Best insight from top research papers
Fouling is a common issue in heat exchangers, including fin and tube heat exchangers. It is known that fouling reduces the heat transfer coefficient and decreases the thermal and hydraulic performance of the exchanger . However, the specific risk of fouling in a fin and tube heat exchanger of a paper drying humid exhaust gas is not directly addressed in the abstracts provided. The abstracts discuss fouling in general terms, including the impact on heat transfer equipment, the economic costs and environmental damage associated with fouling, and various mitigation approaches . To determine the specific risk of fouling in this particular heat exchanger, further research or information specific to paper drying humid exhaust gas heat exchangers would be required.
Answers from top 5 papers
More filters
| Papers (5) | Insight |
|---|---|
5 Citations | The provided paper does not specifically mention the risk of fouling in a fin and tube heat exchanger of a paper drying humid exhaust gas. |
| The provided paper does not specifically mention the risk of fouling in a fin and tube heat exchanger of a paper drying humid exhaust gas. | |
| The provided paper does not specifically mention the risk of fouling in a fin and tube heat exchanger of a paper drying humid exhaust gas. | |
01 Aug 2021 28 Citations | The provided paper does not specifically mention the risk of fouling in a fin and tube heat exchanger of a paper drying humid exhaust gas. |
01 Jan 2023 | The provided paper does not mention anything about a fin and tube heat exchanger of a paper drying humid exhaust gas. |
Related Questions
How does humidity affect the friction coefficient in HFRR?4 answersThe friction coefficient in HFRR is affected by humidity. In the study by Lofaj et al., it was found that the formation of a transfer layer consisting of hydrogenated carbon, ferritungstate, and small amounts of tungsten and iron oxides contributed to the friction behavior in a HiPIMS W-C:H coating/steel ball system. Kumar et al. observed a decrease in the friction coefficient of an ultrananocrystalline diamond film with increasing humidity levels, which was attributed to the passivation of carbon atom bonds due to the formation of hydroxyl and carboxylic groups. Chowdhury and Helali found that the friction coefficient decreased with increasing relative humidity for horizontal vibration, and it also had a relationship with surface roughness. Dhieb et al. demonstrated that humidity and water immersion significantly affected fiber debonding and wear depth in carbon fiber reinforced epoxy composites. Pardee observed that the friction coefficient increased with increasing relative humidity in MoS2/graphite bonded solid film lubricants, and it was influenced by chemically reactive metals.
Does humid weather cause corrosion on steel?5 answersHumid weather can cause corrosion on steel. Higher relative humidity (RH) leads to an increase in the corrosion rate of steel in chloride contaminated mortar. Wet/dry cyclic corrosion tests also show that the amount of permeated hydrogen through steel increases with increasing RH at the dry period. Additionally, the introduction of ozone, formed by radiolysis of water under gamma-ray irradiation, accelerates the corrosion of carbon steel in a humid environment. These findings suggest that humidity plays a significant role in the corrosion process of steel.
What are the hazards associated with dry processing?5 answersDry processing in the food industry presents several hazards. One major risk is the potential for filamentous fungal infection and mycotoxin contamination in dried figs during processing stages such as curing, sizing, blanching, storage, and final product. Another hazard associated with dry processing is the risk of accidents related to decomposition, fire, and explosion, especially when handling bulk powders and dusts. Dry cleaning and sanitization methods used in food manufacturing facilities aim to reduce the risk of contamination with biological, chemical, and physical hazards on food-contact surfaces. In dry-cured meat production facilities, mycotoxigenic hazards can arise at different stages, with smoking and dry-ripening identified as critical control points. Maintaining maximum cleanliness in dry food-processing facilities is crucial to comply with food safety principles, and dry cleaning methods such as brushing, vacuuming, and blasting with granular or crystalline food products are commonly used.
Is dried fish low risk?4 answersDried fish can pose potential health risks due to contamination with heavy metals, biogenic amines, and polycyclic aromatic hydrocarbons (PAHs). The concentration of these contaminants varies among different fish species, with some species showing higher pollution levels than others. The presence of pesticides in smoke-dried fish has also been detected, indicating a potential toxicological risk to public health. However, it is important to note that not all dried fish products pose the same level of risk. Some studies have focused on developing low-allergenicity dried fish products, which can be beneficial for individuals allergic to fish. Additionally, the invention of low-salt and low-temperature salted dried fish with reduced salt content and improved safety has provided a safer option for consumers. Overall, the risk associated with dried fish consumption depends on various factors such as the type of contaminants present and the processing methods used.
What causes the semipermeable membrane to foul?3 answersMembrane fouling is caused by the deposition and accumulation of molecules, particulates, and compounds on the surface or within the pores of the semipermeable membrane. This can lead to pore blockage, solute aggregation, cake formation, gel layer formation, and adsorption. Factors that influence membrane fouling include the properties of the membrane material, such as surface morphology, roughness, and hydrophobicity, as well as the properties of the feed solution, such as composition, concentration, pH, and ionic condition. Pretreatments of the feed solution can help reduce membrane fouling tendency by removing suspended solids and conditioning the feed and membrane surface. Membrane fouling can have detrimental effects on the membrane's performance, including reduced permeate flux, deterioration of selectivity, and reduced lifespan. Efficient prediction techniques, diagnostics, and mitigation strategies are important for controlling and managing membrane fouling.
What are the potential risks of eating dried fish?0 answersThe potential risks of eating dried fish include microbiological contamination, toxic heavy metals, and aflatoxins. The levels of mercury, cadmium, and lead in the fish were found to be within acceptable limits, but higher in saltwater fish compared to freshwater fish. Aflatoxins, which can be harmful if consumed in high amounts, were detected in the fish but were generally within acceptable limits set by the World Health Organization. Proper evaluation of fish processing and storage methods is needed to prevent exposure to toxic metals and aflatoxins. Additionally, there are methods for producing dried fish that are low in salt content and contain kelp nutrients, which may be beneficial for individuals with certain health conditions. Overall, the risks associated with eating dried fish are generally low, but it is important to ensure proper processing and storage to minimize potential health risks.