P 89
JERP Execution- Fire water&Safety systems
As said, with my past exposure and technical contacts, I could effectively interface with Mr Steve Wiggins of Bechtel when it came to fire water systems engineering. Steve being one of the experts in systems definition and conceptual basic engineering, we had an excellent understanding in converting our thoughts and vision effectively.
When it came to meeting the disaster management requirement of having full back -up sourcing of fire water from DTA to SEZ, vice versa, though that aspect was restricted item from SEZ angle, we could get away by taking up with the District Magistrate ( Chief Revenue Authority for the District ,at the same time Disaster management Chief for the District). So we could get royal tie-in with isolation valve put in closed condition during normal operation. But when it came to SEZ tank farm fire water network, there was no neighboring fire water source pond for back-up! There came Steve's brilliance ; he came out with an idea of taking 20" pipe manifold with isolation valves taken from 66"/60" sea water intake lines for JERP. As these lines were passing adjacent to SEZ tank farm, the execution became easy and effective. So in this case, since the tank under fire may require very large
quantity of fire water that too for extended period( maybe 2/3 days continuously) we decided to go with sea water as worst case emergency back-up.
Here I have to particularly mention Dave Conolly's name. Though on first look ,one may conclude that he is disinterested man and may not contribute any value, he was the best asset for fire water engineering of JERP. All his pipe diameter selection for each node in JERP fire water network, both in refinery area and tank farm went through successfully in first pass itself. His first and only hydraulic check calculations were appreciated by one and all. He was one person who could assimilate all the IFs andBUTs of various applicable laws and meet all of them comprehensively.
Having seen about the overall fire water network integrity, let us go in detail about various pin pricks of JERP fire water system.
To start with, let me narrate the issue about network isolating valves selection, valve pits dimensions to suit the valve and distance piece, network drain valve qty in numbers and location , valve status position indicator etc.
Valve type selection: Considering overall cost aspect and space/operability, avoiding muck settling in valve body, project team opted to go with sandwich type butterfly valves from M/S L&T valves. But JMD site management and operations were bitter to accept selection of butterfly valves since they had miserable experience of using TYCO butterfly valves in DTA network, which never isolated the node what they wanted to isolate for maintenance. After long deliberations, project team convinced the end user to accept and go with L&T butterfly valves that too type tested for positive shut-off.
Typical of interface mismatch between piping and civil discipline when it came to internal piping configuration and the overall pit dimensions to accomodate the zig zag piping arrangement. Each engineering discipline was taking stand and it became project manager's responsibility to mediate and resolve.
Contd......
Key Aspects :- Accountable, Incident analysis, Leadership, Multi discipline exposure,
Proactive approach, Technical issue, Team building
JERP Execution- Fire water&Safety systems
As said, with my past exposure and technical contacts, I could effectively interface with Mr Steve Wiggins of Bechtel when it came to fire water systems engineering. Steve being one of the experts in systems definition and conceptual basic engineering, we had an excellent understanding in converting our thoughts and vision effectively.
When it came to meeting the disaster management requirement of having full back -up sourcing of fire water from DTA to SEZ, vice versa, though that aspect was restricted item from SEZ angle, we could get away by taking up with the District Magistrate ( Chief Revenue Authority for the District ,at the same time Disaster management Chief for the District). So we could get royal tie-in with isolation valve put in closed condition during normal operation. But when it came to SEZ tank farm fire water network, there was no neighboring fire water source pond for back-up! There came Steve's brilliance ; he came out with an idea of taking 20" pipe manifold with isolation valves taken from 66"/60" sea water intake lines for JERP. As these lines were passing adjacent to SEZ tank farm, the execution became easy and effective. So in this case, since the tank under fire may require very large
quantity of fire water that too for extended period( maybe 2/3 days continuously) we decided to go with sea water as worst case emergency back-up.
Here I have to particularly mention Dave Conolly's name. Though on first look ,one may conclude that he is disinterested man and may not contribute any value, he was the best asset for fire water engineering of JERP. All his pipe diameter selection for each node in JERP fire water network, both in refinery area and tank farm went through successfully in first pass itself. His first and only hydraulic check calculations were appreciated by one and all. He was one person who could assimilate all the IFs andBUTs of various applicable laws and meet all of them comprehensively.
Having seen about the overall fire water network integrity, let us go in detail about various pin pricks of JERP fire water system.
To start with, let me narrate the issue about network isolating valves selection, valve pits dimensions to suit the valve and distance piece, network drain valve qty in numbers and location , valve status position indicator etc.
Valve type selection: Considering overall cost aspect and space/operability, avoiding muck settling in valve body, project team opted to go with sandwich type butterfly valves from M/S L&T valves. But JMD site management and operations were bitter to accept selection of butterfly valves since they had miserable experience of using TYCO butterfly valves in DTA network, which never isolated the node what they wanted to isolate for maintenance. After long deliberations, project team convinced the end user to accept and go with L&T butterfly valves that too type tested for positive shut-off.
Typical of interface mismatch between piping and civil discipline when it came to internal piping configuration and the overall pit dimensions to accomodate the zig zag piping arrangement. Each engineering discipline was taking stand and it became project manager's responsibility to mediate and resolve.
Contd......
Key Aspects :- Accountable, Incident analysis, Leadership, Multi discipline exposure,
Proactive approach, Technical issue, Team building
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