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  • Users: rahim16
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  1. rahim16

    Air Cooler Maintenance & Reliability

    Hello, I am looking for some guidance based on experience 'how to maintain an offline air gas cooler?' Due to operational issues, an Air cooled Heat exchanger need to be isolated form the operation & remain idle till process required. For availability & reliability point of view other than the...
  2. rahim16

    Using Inserts in Air Gas Coolers

    Hi There, I am trying to analyze the use of mechanical inserts within the tubes of an Air Cooled Heat exchanger to enhance the internal covective heat transfer. I know there will be some pressure drop and it needs some economic analysis /justification. I am wondering if any expert guy in this...
  3. rahim16

    Boiler Vent Design

    Hi Guys, I am installing one boiler with 2400MBH output capacity with two(2) 18" vent size (Boiler actually consist of two small units each has 18" stack). As per regulation we need Type B vent. Boiler is natural draft & has hood on it & installed in bldg basement. Building has one existing 24"...
  4. rahim16

    Refrigerant Capacity & Charge

    Hi Guys, I have very small inquiry regarding converion of refrigerant charge quantity wrt its capcity. E.g for cpmmercial window type AC, if I know the charge capacity of 50lb, how much would be its capacity in (refrigerant) TON? Apprciated if I know the convertion details. Thanks & Have a nice...
  5. rahim16

    Inspection / maintenance plan for Silica gel tower

    Hi guys, I am in process of writing integrity / maintenance plan for silica gel towers at one of our facilities. We have 6 towers for gas dew point control (4 at adsorption, 1 at cooling & 1 at regeneration at one time) I need to know what are the requirements of maintenance of these processes...
  6. rahim16

    Modular Boilers Exhaust design

    Hi Guys, I am looking assistance in finding exhaust header & stack sizes for 3 modular hot water boilers. Each boiler has 24" exhaust flange. I am planning to breach them in one common header & then connect to stack. I have existing 2 stacks available each 16" big. How I find the common header...
  7. rahim16

    Idle Fan brearings lubrication

    Hi, Based on experience can anyone guide for greasing of those fan & shaft bearings, who are not operating for a long time or stand by. What would be the reliability plan like greasing & its frequency for non-operating fans or any test run? These fans are for gas coolers at compression sites...
  8. rahim16

    Idle Fan brearings lubrication

    Hi, Based on experience can anyone guide for greasing of those fan & shaft bearings, who are not operating for a long time or stand by. What would be the reliability plan like greasing & its frequency for non-operating fans or any test run? These fans are for gas coolers at compression sites...
  9. rahim16

    Use of smaller stud size

    Hi guys, This is first time I am here. I found it very great & helpful in this engg. business. In short my question is that in one of our flow lines, we have installed an insulation kit for cathodic protection. Due to slight misalighment of bolt holes, the insulating sleeve becomes cracked &...

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