http://suspace.su.edu.bd/handle/123456789/15 2025-10-19T06:59:30Z 2025-10-19T06:59:30Z Ataur Rahman, BME-200383 Hossain, Selim Alam, Md. Shahinur Islam, Md. Mirajul Hussain, Nazmul http://suspace.su.edu.bd/handle/123456789/384 2022-12-26T10:02:44Z 2020-02-06T00:00:00Z

Design and Fabrication of an Automatic Double Hacksaw Ataur Rahman, BME-200383; Hossain, Selim; Alam, Md. Shahinur; Islam, Md. Mirajul; Hussain, Nazmul 1.A hacksaw is a fine-toothed saw, originally and mainly made for cutting metal, plastic or wood. For industries to realize the production, it is necessary to cut metal, plastic bars with high rate. So, it’s not possible to depend on typical single frame power saw machines and wish the advance in technology and style of such machines. 2.To automate the conventional power hacksaw machine in order to achieve high productivity of workpieces, we have proposed a power hacksaw machine that uses pneumatic power. The high-speed saw machine contains a bonus of high operation, the saw utilized in this can be used for specified needs and can be used to cut consistent with the necessity. 3.The pneumatic operated double hacksaw is the plastic cutting machine tool designed to cut plastic by applying pneumatic pressure. Hacksaws are used to cut thin and soft metals, plastic. This pneumatic double hacksaw machine consists of rods for guiding hacksaw, Crank, stand base frame. The guide plate pushes the second link. Pneumatic cylinder and other linkage are arranged so that it will actuate two hacksaw blades. Pneumatic operated double hacksaw machines can be used for cutting the wood, metal, pipe, angle, channel, flat plates, rods, and such other things.

2020-02-06T00:00:00Z Md. Rasedul Islam, BME-200382 Zaman, Md. Rashed Islam, Hedayetul Roy, Dalim Kumar http://suspace.su.edu.bd/handle/123456789/383 2022-12-26T09:50:07Z 2020-02-04T00:00:00Z

Construction of Mini Electric Chiller Md. Rasedul Islam, BME-200382; Zaman, Md. Rashed; Islam, Hedayetul; Roy, Dalim Kumar A chiller is a device which cool a fluid by removing heat from it, either through a vapour – compression cycle; with the key components being the compressor, condenser, evaporator and expansion device... This paper emphasizes on studying the design procedure followed in the industries and performance evaluation of two different configurations of 1 ton based chilling plant. The two such configurations studied are rotary compressor and round type evaporator chamber with R-606A refrigerant. The results on basis of this experiment shows that the configuration rotary compressor and round type evaporator chamber can give better results

2020-02-04T00:00:00Z Md. Assaduzzaman, BME-200381 Das, Hirdoy Hasan Bappy, Md Hasebul Hasan, Md. Naser Day, Jewel Chandro http://suspace.su.edu.bd/handle/123456789/382 2022-12-26T08:36:32Z 2020-02-06T00:00:00Z

Study of Fabrication of Emergency Eye Wash Md. Assaduzzaman, BME-200381; Das, Hirdoy; Hasan Bappy, Md Hasebul; Hasan, Md. Naser; Day, Jewel Chandro Chemical contact with eye can cause severe ocular damage leading to blindness. Treatment of on ocular burn can be sever and difficult to manage. New designs of eye wash stations have been developed in which the direction of water flow from the fountain has been reversed, with two water streams originating in both eyes and flowing toward the temporal side of each eye.The purpose of this thesis is to provide guidance to users on the need for proper emergency eyewash equipment to mitigate injury from chemical splash and ocular incidents. Eye wash minimum flow rate 1.5 L/min.Typical eyewash stations will provide equal amounts of fluid to both eyes at a rate adequate enough to rinse the eyes for 15 minutes.This project flow rate 5L/min. This flow is perfect for the eye.The unit has to be installed between 33 inch and 45 inch above the wall. which can detect a human face and 6 inches away from the wall. Flushing water must be able to maintain its flush for a minimum of 15minutes.With this project automatic emergency eye wash can be done.we have used here ultrasonic sensor. When human face in come front of sensor the motor automatically turn on and water spray in eye. This system is very easy & workable.The mechanical structure of emergency eye wash is designed in such way that user can use it very easily. Main characteristics of this machine are protable and ultrasonic sensor baised whose sensitivity and accuracy is very high

2020-02-06T00:00:00Z Md. Saiful Islam, BME200380 Islam, Md. Shariful Chowdhury, Miton http://suspace.su.edu.bd/handle/123456789/381 2022-12-26T08:03:40Z 2020-02-10T00:00:00Z

Design ,Construction, and Performance Test of Induced Draft Wet Counter Flow Cooling Tower Md. Saiful Islam, BME200380; Islam, Md. Shariful; Chowdhury, Miton A cooling tower is a heat rejection device that rejects waste heat to the atmosphere through the cooling of a water stream to a lower temperature. Cooling towers are used in all heat producing industries. Cooled water is needed for air conditioners, manufacturing processes, power generation and many other heat transfer related operations. The purpose of this thesis is to design a counter flow induced draft wet cooling tower with a view to analyze the performance of the cooling tower. There are two shapes of cooling tower rectangular and circular cooling tower. In our thesis we are going to design rectangular cooling tower named as induced draft counter flow cooling tower. Induced draft towers are typically mounted with a fan at the top of the cooling tower, which allows hot air out and pulls air throughout. The high exiting air velocities reduces the chance of re-circulation. 2D CAD model design is created by AutoCAD 2016 . Construction of induced draft cooling tower is made, with necessary components such as GP sheet with necessary steel structure for bearing the load of the tower . The size of this cooling tower is 4.67ft (1.42m) height and 1.25ft(0.381m) wide rectangular shape cooling tower. After finished the project collecting technical parameter data and after calculation result shows that the efficiency 55% for the hot water mass flow rate of 480kg/hr

2020-02-10T00:00:00Z