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Bhavesh Narayani

Bio: Bhavesh Narayani is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Screw conveyor & Storage tank. The author has an hindex of 1, co-authored 2 publications receiving 1 citations.

Papers
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Proceedings ArticleDOI
02 Jul 2019
TL;DR: In this article, a screw conveyor based sludge cleaning mechanism is proposed to clean the sticky sludge from the floor of aboveground oil storage tanks and interface effectively with tank inspection robots to perform cleaning and inspection synchronously.
Abstract: Oily sludge on the floor of the tank is a significant problem for petrochemical industries and floor inspection robots. Oily sludge is a hazardous material containing a complex mixture of hydrocarbon, water, sand, and minerals deposited on the floor of the oil storage tanks. Sludge accelerates corrosion, reduces storage capacity, sticks to floor inspection robots and disrupts further tank operations Industries have started deploying robots in a tank to automate and replace the hazardous manual tank tasks. This paper presents the design of a screw conveyor based sludge cleaning mechanism to clean the sticky sludge from the floor of aboveground oil storage tanks and interface effectively with tank inspection robots to perform cleaning and inspection synchronously. The cleaning mechanism consists of a screw conveyor mounted on a 'C' shaped case with a bearing on both sides, a waterproof motor connected to the screw conveyor with a worm-wheel gear. A Rheometer is used for measuring sludge properties to understand its flow behavior. Computational fluid dynamics (CFD) based numerical simulation is performed to visualize the flow of oily sludge through the proposed cleaning mechanism.

1 citations

Journal ArticleDOI
01 Feb 2021
TL;DR: In this paper, a screw-convex screw conveyor based system was proposed to scoop crude oil sludge from the floor of oil storage tanks using a worm drive and a bearing on both sides driven by a waterproof motor.
Abstract: This paper presents the design optimization and testing of a novel screw conveyor based system to scoop crude oil sludge from the floor of oil storage tanks This proposed new system consists of a screw conveyor mounted on a ‘C’ shaped casing with a bearing on both sides driven by a waterproof motor through a worm drive A novel mathematical model is developed to help the design of a screw conveyor for a maximum amount of sludge scooping per turn, and numerical simulations are performed using computational fluid dynamics to visualize the flow of material particles in various possible designs of the system The proposed mechanism was 3D printed, and laboratory tests were conducted to quantify the amount of sludge removal by the different designs of the screw Optimized design of a mechanism screw with a radius ratio of 040 and a pitch ratio of 015 scoops up to a maximum of 588 kg hr of material at 110 rev min

Cited by
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Journal ArticleDOI
01 Feb 2021
TL;DR: In this paper, a screw-convex screw conveyor based system was proposed to scoop crude oil sludge from the floor of oil storage tanks using a worm drive and a bearing on both sides driven by a waterproof motor.
Abstract: This paper presents the design optimization and testing of a novel screw conveyor based system to scoop crude oil sludge from the floor of oil storage tanks This proposed new system consists of a screw conveyor mounted on a ‘C’ shaped casing with a bearing on both sides driven by a waterproof motor through a worm drive A novel mathematical model is developed to help the design of a screw conveyor for a maximum amount of sludge scooping per turn, and numerical simulations are performed using computational fluid dynamics to visualize the flow of material particles in various possible designs of the system The proposed mechanism was 3D printed, and laboratory tests were conducted to quantify the amount of sludge removal by the different designs of the screw Optimized design of a mechanism screw with a radius ratio of 040 and a pitch ratio of 015 scoops up to a maximum of 588 kg hr of material at 110 rev min