Elevator machine room noise

2021 ◽  
Vol 150 (4) ◽  
pp. A248-A248
Author(s):  
Zohreh Razavi
Keyword(s):  
Machine Room

Machine room equipment

1971 ◽  
pp. 219-229
Author(s):  
Peter R. Whiteley
Keyword(s):  
Machine Room

Assessment of the condition of the building housing the machine room at the Sayano-Shushenskaya HPP from results of trial dynamic tests

2009 ◽  
Vol 43 (1) ◽  
pp. 12-19
Author(s):  
A. P. Kuz’menko ◽  
V. S. Saburov ◽  
S. M. Sergeev ◽  
E. V. Yan’kov ◽  
A. I. Kolomeitsev ◽  
...  
Keyword(s):  
Dynamic Tests ◽  
Building Housing ◽  
Machine Room

COMPARATIVE ANALYSIS OF STRUCTURAL DIAGRAMS OF ROPE TENSIONING DEVICES FOR SPEED LIMITERS AND JUSTIFICATION OF REQUIREMENTS FOR THEM IN MACHINE ROOM-LESS ELEVATORS WITH A REDUCED PIT

2021 ◽  
pp. 26-36
Author(s):  
Alexandr Vladimirovich Kutsepolenko ◽  
Maksim Eduardovich Podymako ◽  
Maksim Valeryevich Sobolev ◽  
Vladimir Aleksandrovich Dalimaev ◽  
German Sergeyevich Sinitsyn
Keyword(s):  
Comparative Analysis ◽  
Machine Room

scholarly journals Validation of Portable Mobile Mapping System for Inspection Tasks in Thermal and Fluid–Mechanical Facilities

2019 ◽  
Vol 11 (19) ◽  
pp. 2205 ◽  
Author(s):  
Rodríguez-Martín ◽  
Rodríguez-Gonzálvez ◽  
Ruiz de Oña Crespo ◽  
González-Aguilera
Keyword(s):  
Three Dimensional ◽  
Laser Scanner ◽  
Ground Truth ◽  
Mobile Mapping ◽  
Industrial Facilities ◽  
Starting Point ◽  
Mapping System ◽  
Mobile Mapping System ◽  
Machine Room ◽  
Inspection Tasks

The three-dimensional registration of industrial facilities has a great importance for maintenance, inspection, and safety tasks and it is a starting point for new improvements and expansions in the industrial facilities context. In this paper, a comparison between the results obtained using a novel portable mobile mapping system (PMMS) and a static terrestrial laser scanner (TLS), widely used for 3D reconstruction in civil and industrial scenarios, is carried out. This comparison is performed in the context of industrial inspection tasks, specifically in the thermal and fluid-mechanics facilities in a hospital. The comparison addresses the general reconstruction of a machine room, focusing on the quantitative and qualitative analysis of different elements (e.g., valves, regulation systems, burner systems and tanks, etc.). The validation of the PMMS is provided considering the TLS as ground truth and applying a robust statistical analysis. Results come to confirm the suitability of the PMMS to perform inspection tasks in industrial facilities.

A New Method to Detect Fire and Alarm in Confined Space Based on Electronic Nose

2013 ◽  
Vol 390 ◽  
pp. 383-387 ◽  
Author(s):  
Xiao Wei Wang ◽  
Hai Bing Hu ◽  
Jun Qin ◽  
Yong Ming Zhang
Keyword(s):  
Real Time ◽  
Electronic Nose ◽  
Fire Detection ◽  
Recognition Algorithm ◽  
New Method ◽  
Alarm System ◽  
Air Cargo ◽  
Confined Space ◽  
Machine Room ◽  
Warning Time

This paper presents a new method to detect fire and alarm in confined space based on electronic nose. Common confined space includes some distribution cabinet, machine room, warehouse, air cargo compartment and spacecraft cabin, etc. Combined with the characteristics of the confined space, a fire detection and alarm system is schematically designed. This system is based on electronic nose and is an aspirated configuration. With this system, this method adopts PNN as the recognition algorithm, and introduces steady status and warning time to the monitoring host. The CO, O2, CO2and temperature are taken into account as the input of the PNN to get the probability of fire. Compared with the normal methods, this method can detect fire more quickly, reduce the false and missing alarm rate and realize real-time online alarming.

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