scholarly journals Design of heat exchanger for the production of zinc imidazole framework-8 (ZIF-8) particles

Author(s):  
Asep Bayu Dani Nandiyanto ◽  
◽  
Risti Ragadhita ◽  
Silmi Ridwan Putri ◽  
Rina Maryanti ◽  
...  

The design of a heat exchanger is very effective to reduce total production costs, compared to buying a ready-made exchanger. This study aims to design a heat exchanger with a manual calculation analysis method to get dimension calculations of the heat exchanger. Dimension calculation of heat exchanger aims to determine the quality of the heat exchanger based on the overall heat transfer coefficient and the dirt factor that occurs in the heat exchanger. The designed heat exchanger is a shell and tube type with 1 (one) pass shell and 2 (two) pass tubes using water as hot fluid and cold fluid. The fluid flow is assumed to be the opposite. The results show the effectiveness of the heat exchanger reaches more than 50%. The performance of the designed heat exchanger is relatively good but it still does not meet the minimum requirements of the established dirt factor. This research can be useful as a learning method regarding the design process, working mechanism, and heat exchanger performance.

Author(s):  
Asep Bayu Dani Nandiyanto ◽  
◽  
Silmi Ridwan Putri ◽  
Risti Ragadhita ◽  
Rina Maryanti ◽  
...  

This study aims to analyze and develop a heat exchanger (HE) application for the manufacture of silica nanoparticles synthesis from agricultural waste. This shell and tube-type HE is designed simply, but it still refers to the existing design rules. The design of a shell and tube type HE with one pass shell and tube with turbulence flow. The specifications of the HE apparatus are 1.93 m in shell length, 0.203 m in shell diameter, 0.020 m in inner tube diameter, 0.022 m in outer tube diameter, and 0.016 m in thickness. The results showed an effectiveness value of 66.38% with an impurity factor of 0.01314. This informed that although the shell and tube-typed HE does not meet the requirements and standards for being set in industrial applications, it can be useful as a learning method regarding the design process, working mechanism, and analyzing the performance of the HE.


2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Amarjit Singh ◽  
Satbir S. Sehgal

In this study, the experimental analysis was performed on the shell-and-tube type heat exchanger containing segmental baffles at different orientations. In the current work, three angular orientations (θ) 0°, 30°, and 60° of the baffles were analyzed for laminar flow having the Reynolds number range 303–1516. It was observed that, with increase of Reynolds number from 303 to 1516, there was a 94.8% increase in Nusselt number and 282.9% increase in pressure drop. Due to increase of Reynolds number from 303 to 1516, there is a decrease in nondimensional temperature factor for cold water (ω) by 57.7% and hot water (ξ) by 57.1%, respectively.


2019 ◽  
Author(s):  
Сергей Енгашев ◽  
Syergyey YEngashyev ◽  
Тамара Околелова ◽  
Tamara Okolelova

The book deals with many factors, including anti-nutritional, determining the biological value of feed components. Considerable attention is paid to the minimum requirements that must be imposed on the quality of raw materials and can be met in each economy. Provides information on poisonous plants and weeds that may be present in the plant material and cause phytotoxicity. The causes of diseases of feed nature associated with metabolic disorders, and ways to prevent them. The consequences of technological violations in poultry farming are revealed. The role of the quality of raw materials, biologically active and mineral substances in the prevention of certain diseases of forage nature, increasing the productivity of poultry, reducing the cost of feed and their production costs. It is addressed to specialists and managers of poultry farms, feed industry enterprises, researchers, postgraduates and students.


Author(s):  
ARIJIT BISWAS ◽  
PINAKESWAR MAHANTA

This paper presents methods for the production of Bamboo Vinegar. Bamboo Vinegar is formed on condensation of Bamboo Vapor which is a byproduct of bamboo pyrolysis occurring during the process of production of Bamboo Charcoal. The Paper mentions the conventional practices of producing Bamboo Vinegar and provides detailed study on the development of a condenser of adequate rating and sizing for the production of Bamboo Vinegar. Appropriate assumptions are made in designing the condenser which is a modification of a shell and tube type heat exchanger. The condenser acts as a heat sink improving the yield and quality of bamboo vinegar produced. Designs have been attempted with strong consideration for manufacture and operational cost as the condenser finds application amongst rural people with little or no technical knowhow, therefore simplicity of design is absolutely critical. Experimental results confirm working prototype of condensation system. Improvement over conventional method of production is specified for in this paper.


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