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Angel Parrales
@angelparrales
25
Instrumentation, Safety Systems, Engineering
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Latin America
Created
2017-06-22 23:57
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angelparrales
safety
2018-05-16 14:40
FIRE ALARM SYSTEMS 6-MAINTENANCE
BACKGROUND For reliable functioning of Fire Alarm System a periodic test program is crucial. It is clear that testing cannot prevent failures but rather help on identifying failures so reducing downtime
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angelparrales
safety
2018-04-16 15:40
FIRE ALARM SYSTEMS 5-STANDARDS DEFINITIONS
DEFINITIONS Approved: means acceptable to the authority having jurisdiction Authority Having Jurisdiction: is the organization, office or individual responsible for approving. Labeled: equipment or materials
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angelparrales
safety
2018-04-09 23:23
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FIRE ALARM SYSTEMS 4-DOCUMENTATION
IMPORTANCE These documents are the construction contract, which governs the rights, duties and liabilities of the contractor who performs the work, the organization for whom the work is executed and the
angelparrales
safety
2018-04-05 01:15
ULTRASONIC GAS DETECTORS
Instant detection of gas leaks can be achieved using ultrasonic detection. Ultrasonic detection technology has been around for decades and used in machinery and equipment inspection tasks. Applicability
angelparrales
safety
2018-04-02 12:29
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FIRE ALARM SYSTEMS 3A-PERFORMANCE BASED DESIGN
This method proposes an approach to design a system such as can detect a growing fire before it reaches certain heat release level, is not applicable to smoldering fires. It is based on modify the listed
angelparrales
shodo
2018-03-31 12:28
SHODO Kanji Balance
Character THREE (三) is a basic example of brush stroke balance. Relationship between lines length, width, orientation and spacing is what brings beauty to any work, regardless of kanji complexity. Straight
angelparrales
safety
2018-03-29 16:24
INFRARED COMBUSTIBLE GAS DETECTOR
The Infrared (IR) method of measuring gas concentration is based on the absorption of IR radiation at certain wavelengths as the radiation passes through a volume of the gas. There is an excellent whitepaper
angelparrales
blockchain
2018-03-28 21:32
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Digital Certificates and Credentials - ALTERNATIVE USE OF BLOCKCHAIN
This post is NOT about money. Our fellows at University of Nicosia (Cyprus) and its Blockchain Initiative innovated the issuance of certificates for their student by using (of course) the blockchain
angelparrales
safety
2018-03-27 18:12
Fire and Gas System performance is not as SIS?
Fire and Gas Systems (FGS) are mitigation methods, this mere fact has brought an never-ending controversy about applicability of safety systems codes and standards to FGS, given that SIS operates as a
angelparrales
safety
2018-03-26 13:18
FIRE ALARM SYSTEMS 3-DESIGN
Engineering design is a well structured method to plan and perform every activity to get an proper and effective fire alarm system. This is paramount when it comes to protect life, assets and environment
angelparrales
shodo
2018-03-25 12:21
SHODO - Ink and Human Energy
Sumi is created by burning oils of various kinds, and the soot is collected and mixed with animal glue. Because the soot is basically carbon molecules, when a stick of sumi is ground on the Suzuri (grinding
angelparrales
safety
2018-03-24 23:51
FLAME DETECTORS - A Summary
Methods for detection of flame rely on optical recognition of fire signatures, this is the phenomena introduced to the surroundings by a fire. NFPA 72 categorizes as Radiant Energy–Sensing Fire Detectors
angelparrales
cryptocurrency
2018-03-23 13:50
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Why MONERO (XMR)? Privacy-Centered digital currency
Monero launched on April 2014 as a fork of Bytecoin. Bytecoin was an obscure cryptocurrency that, while having pioneered a novel way to achieve privacy, was plagued with a shady history and an unfair launch.
angelparrales
safety
2018-03-22 14:36
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About Privacy and Cryptocurrencies
ABOUT PRIVACY AND CRYPTOCURRENCIES The original Bitcoin Whitepaper (2008) stated that: The traditional banking model achieves a level of privacy by limiting access to information to the parties involved
angelparrales
safety
2018-03-21 11:47
CATALYTIC COMBUSTIBLE GAS DETECTOR
Based on the principle that a combustible gas can be oxidized to produce heat, then using a Wheatstone bridge circuit, this change in temperature can be converted to an electrical signal. A platinum coil
angelparrales
safety
2018-03-20 16:19
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SIL, Safety Integrity Level – Basic Definitions
Safety Integrity Level (SIL): is a measure of the safety system performance, related to the Probability of Failure on Demand (PFD). Four numbered levels has been defined from 1 to 4, the higher the SIL
angelparrales
safety
2018-03-19 17:11
FIRE ALARM SYSTEMS 2-LIMITATIONS
There is no one-size-fits-all in fire alarm system. If a building owner expects that installing only what the building code requires, will detect any fire at every remote part of the building, that simply
angelparrales
safety
2018-03-18 21:12
GAS DETECTION -1 FLAMMABLE AND COMBUSTIBLE LIQUIDS
Flammable and combustible liquids are found stored in almost every facility at every industrial plant. A flammable liquid is defined as one having a flash point below 100 deg F (37.8 deg C) with a vapor
angelparrales
safety
2018-03-17 19:04
What is the differences between SAFETY FUNCTION, SAFETY INSTRUMENTED FUNCTION (SIF) and SAFETY INSTRUMENTED SYSTEM (SIS)?
A SAFETY FUNCTION, within the scope of Industrial Plants Safety, is the description of the actions taken by the Safety System for each hazardous event. Such actions are to be implemented by any combination
angelparrales
safety
2018-03-11 21:00
FIRE ALARM SYSTEMS 1-OVERVIEW
Fire Alarm System is a feature of a building for protection against the damages of fire. Is a key element in any overall risk management strategy. It can help limit losses in buildings and facilities by
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