Time filter

Source Type

Ambāla, India

Chhibber R.,Indian Institute of Technology Jodhpur | Mehta N.P.,Mm Engineering College
Materials Science Forum | Year: 2013

The application of high strength low alloy (HSLA) steels has been limited by unavailability of suitable joining and filler metals in submerged arc welding (SAW) processes. The present work aims at the design and development of flux for Submerged Arc Welding of HSLA steel. In the work L8 array of Taguchi Design is used to formulate eight types of fluxes to vary basicity index (BI) from 1.26 to 2.81 and to study the effect of flux constituents and basicity index on tensile strength, microhardness and microstructure of the weld metal. Empirical models for ultimate tensile strength and microhardness at the centre of weld versus flux constituents and basicity index have been developed. From the experiments it is found that ultimate tensile strength increase with increase of basicity index with minimum at 1.26 increases upto 2.33 and then further decreases whereas opposite in case of microhardness which is highest at 1.26 and minimum at 1.9. Increase of CaO in the flux increases ultimate tensile strength but microhardness remains unaffected whereas increase of SiO2 decreases ultimate tensile strength but microhardness remains constant. Microhardness decreases critically with increase of CaF2. © (2013) Trans Tech Publications, Switzerland.

Sharma V.,Gb Pant Engineering College | Bhaduria H.S.,Gb Pant Engineering College | Prasad D.,Mm Engineering College
International Conference on Computing, Communication and Automation, ICCCA 2015 | Year: 2015

Deployment plays an essential role in determining the future performance of any Wireless Sensor Network (WSN). Random deployment is a common method to scatter Sensor Nodes (SNs) within a vast and unreachable region. In this paper we have proposed a Centrifugal Cannon based Sprinkler (CCS) to scatter SNs from helicopter moving over the candidate region. The proposed model is time efficient and effective as it minimizes the number of scans over the region. © 2015 IEEE.

Aggarwal S.K.,Mm Engineering College | Kumar M.,H.V.P.N. Ltd | Saini L.M.,National Institute of Technology Kurukshetra | Kumar A.,National Institute of Technology Kurukshetra
Journal of Engineering Technology | Year: 2011

In this article, a fuzzy inference-based method for short-term load forecasting has been presented. Load data from European Energy Exchange has been selected for the case study. The "time," "temperature," and "historical load" are taken as inputs for the fuzzy logic controller and the "forecast load" is the output. Each of the input variables "time" and "temperature" has been divided into 7 triangular membership functions, whereas the input variable "historical load" has been divided into 10 triangular membership functions. The "forecast load" as output has been divided into 10 triangular membership functions. Then, 1 day ahead load forecast for each hourly interval has been performed using fuzzy logic method. Furthermore, performance of the fuzzy logic model is compared with a conventional model. It has been shown that the proposed method possesses better forecasting abilities than the other model.

Rattan S.S.,National Institute of Technology Kurukshetra | Mehta N.P.,Mm Engineering College | Bhushan G.,National Institute of Technology Kurukshetra
Journal of Engineering Technology | Year: 2011

Sometimes the line of action of the load does not pass through the axis of a bearing and is shifted on either side by a few degrees. The effect of load orientation on the stability of a three-lobe pressure dam bearing has been studied in this article. A three-lobe pressure dam bearing is produced by incorporating two pressure dams in the upper lobes and a relief track in the lower lobe of an ordinary three-lobe bearing. The results show that the stability of a three-lobe pressure dam bearing supporting either rigid or flexible rotor is increased for the positive values of load orientation, that is, when the load line is shifted in the opposite direction of rotation.

Gupta R.D.,Mm Engineering College | Ghai S.,Indian Institute of Technology Delhi | Jain A.,National Institute of Technology Kurukshetra
Journal of Engineering Technology | Year: 2011

In this paper, the findings of boiler house efficiency improvement study carried out in a large boiler house unit of a pulp and paper mill has been presented. The causes of poor boiler efficiency were various heat losses such as loss due to unburnt carbon in refuse, loss due to dry flue gas, loss due to moisture in fuel, loss due to radiation, loss due to blow down, and loss due to burning hydrogen, etc. The various heat losses were analyzed and a set of recommendations were made to the plant management for implementation, so that efficiency of boiler can be increased. Five important recommendations were implemented by plant management, and it has been seen that there is tremendous increase in boiler efficiency. Economic analysis reveals that the expenditure on the proposed system will be recovered in a short span of time. This work, with only five recommendations implemented, has resulted in net increase of 2% in overall boiler efficiency and an annual saving of Rs. 34,12,395. In addition, it is observed that carefulness in the operation of boiler can help a great deal in energy efficiency improvement in boiler.

Discover hidden collaborations