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EAC logic tree
This document presents a logic tree for estimating the classification envelope 'L' for capital equipment in adequately ventilated Class I Division 2 areas. The logic tree begins by collecting data on pressure, temperature, vapor pressure, flow rate, and composition. It then determines if the material is a heavy vapor or light vapor. Based on these criteria, like vapor pressure and flow rate, it assigns an 'L' distance of 50 or 100 feet before concluding with a default 'L' distance of 50 feet. The logic tree is based on guidance from BP and API standards for classifying electrical area locations.
CCl4 process bioreactors
CCl4 is an insidious problem because bugs don't eat it and it is denser than water and because a toxic level is dissolved in water. Bio-reactors is one way to eliminate vapor and liquid CCl4.
De ethanizer
Distillation puzzle created based on Henry Kister problem modified to account for more recent events at refineries.
Figure 2 ko pot, problem, fixes 2 2000 model (1)
Oil/water sump as designed by Fluor was poor. I recommended improved level control by adding density-compensation.
Explanation of pressure relief valve increase
This memo discusses sizing rupture discs for a slurry tank that contains liquid TiCl4, which reacts spontaneously with water to produce HCl gas. A relief device is required on the tank to safely relieve pressure from this reaction. Rupture discs are recommended over relief valves because discs are less likely to plug if solids are present. The memo analyzes relief scenarios and flow rates, and determines that the existing 2" rupture discs are adequate for the tank's maximum capacity of 10.0 tons per hour, but increasing the size to 3" would help address the potential for solids in the relief flow.
Frag tk skid, r0b, dw
Fragrance tank and static mixer skid. I designed piping, PSVs, and specified pump and static mixer. The P&ID was developed to integrate A&B's tank drawings and the customer's former design company, i.e., Tetra-Pak. Those drawings were a mess. Four drawings were prepared over a weekend using my stand-alone copy of AutoCAD LT.
Contact Condenser Sizing
This document contains a cost chart and equations to calculate the equivalent uniform annual cost (EUC) and annual capital investment (CI) for different circulation rates of a contact condenser or scrubber. It recommends a circulation rate of 4,000 gallons per minute (GPM) as the optimal design based on cost and reliability considerations. The scrubber has been safely operated down to 68% of the design rate of 4,000 GPM.
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EAC logic tree
This document presents a logic tree for estimating the classification envelope 'L' for capital equipment in adequately ventilated Class I Division 2 areas. The logic tree begins by collecting data on pressure, temperature, vapor pressure, flow rate, and composition. It then determines if the material is a heavy vapor or light vapor. Based on these criteria, like vapor pressure and flow rate, it assigns an 'L' distance of 50 or 100 feet before concluding with a default 'L' distance of 50 feet. The logic tree is based on guidance from BP and API standards for classifying electrical area locations.
CCl4 process bioreactors
CCl4 is an insidious problem because bugs don't eat it and it is denser than water and because a toxic level is dissolved in water. Bio-reactors is one way to eliminate vapor and liquid CCl4.
De ethanizer
Distillation puzzle created based on Henry Kister problem modified to account for more recent events at refineries.
Figure 2 ko pot, problem, fixes 2 2000 model (1)
Oil/water sump as designed by Fluor was poor. I recommended improved level control by adding density-compensation.
Explanation of pressure relief valve increase
This memo discusses sizing rupture discs for a slurry tank that contains liquid TiCl4, which reacts spontaneously with water to produce HCl gas. A relief device is required on the tank to safely relieve pressure from this reaction. Rupture discs are recommended over relief valves because discs are less likely to plug if solids are present. The memo analyzes relief scenarios and flow rates, and determines that the existing 2" rupture discs are adequate for the tank's maximum capacity of 10.0 tons per hour, but increasing the size to 3" would help address the potential for solids in the relief flow.
Frag tk skid, r0b, dw
Fragrance tank and static mixer skid. I designed piping, PSVs, and specified pump and static mixer. The P&ID was developed to integrate A&B's tank drawings and the customer's former design company, i.e., Tetra-Pak. Those drawings were a mess. Four drawings were prepared over a weekend using my stand-alone copy of AutoCAD LT.
Contact Condenser Sizing
This document contains a cost chart and equations to calculate the equivalent uniform annual cost (EUC) and annual capital investment (CI) for different circulation rates of a contact condenser or scrubber. It recommends a circulation rate of 4,000 gallons per minute (GPM) as the optimal design based on cost and reliability considerations. The scrubber has been safely operated down to 68% of the design rate of 4,000 GPM.
McCabe Thiele
This document discusses gas absorption processes under different temperature conditions. It explains that using the isothermal assumption to estimate stages for a non-isothermal process will result in too few stages. For a non-isothermal process with varying temperatures at each stage, the temperatures must be known or estimated. It also notes that adding a rinse stream complicates the calculation and will likely require additional stages compared to a non-isothermal process without a rinse stream.
151058-supply, skid -MODEL-flow to skid
The document contains pressure drop and flow information for multiple pipe sections that are part of a chicken fat supply loop and skid. Section P1 is a 30 foot pipe with 109 gpm flow that has a pressure drop of 6.134 psi. Section P2 is a 450 foot pipe also with 109 gpm flow and a pressure drop of 44.43 psi. Multiple other pipe sections ranging from 2 to 125 feet are listed with varying flows from 2.726 to 109 gpm and pressure drops ranging from 0.2651 to 72.44 psi.
Cooling tower soln
The document contains technical specifications for various piping components in a water system. It lists pipe diameters (Ø), lengths (L), and flow rates for over 50 pipe sections. It also includes details on other system components like cooling towers, tanks, heat exchangers, control valves, and filters. Pressure and elevation are provided for locations throughout the system. The document appears to be analyzing an existing water system and collecting relevant piping and component data.
Cooling tower problem
The document contains details of pipe diameters (Ø), lengths (L), and flows for a cooling water system. There are over 50 pipes listed with sizes ranging from 4 to 36 inches and flows ranging from 221 to 25,499 gpm. It also includes details on components in the system like cooling towers, tanks, heat exchangers, control valves and their pressures, positions, and pressure drops.
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McCabe Thiele
This document discusses gas absorption processes under different temperature conditions. It explains that using the isothermal assumption to estimate stages for a non-isothermal process will result in too few stages. For a non-isothermal process with varying temperatures at each stage, the temperatures must be known or estimated. It also notes that adding a rinse stream complicates the calculation and will likely require additional stages compared to a non-isothermal process without a rinse stream.
151058-supply, skid -MODEL-flow to skid
The document contains pressure drop and flow information for multiple pipe sections that are part of a chicken fat supply loop and skid. Section P1 is a 30 foot pipe with 109 gpm flow that has a pressure drop of 6.134 psi. Section P2 is a 450 foot pipe also with 109 gpm flow and a pressure drop of 44.43 psi. Multiple other pipe sections ranging from 2 to 125 feet are listed with varying flows from 2.726 to 109 gpm and pressure drops ranging from 0.2651 to 72.44 psi.
Cooling tower soln
The document contains technical specifications for various piping components in a water system. It lists pipe diameters (Ø), lengths (L), and flow rates for over 50 pipe sections. It also includes details on other system components like cooling towers, tanks, heat exchangers, control valves, and filters. Pressure and elevation are provided for locations throughout the system. The document appears to be analyzing an existing water system and collecting relevant piping and component data.
Cooling tower problem
The document contains details of pipe diameters (Ø), lengths (L), and flows for a cooling water system. There are over 50 pipes listed with sizes ranging from 4 to 36 inches and flows ranging from 221 to 25,499 gpm. It also includes details on components in the system like cooling towers, tanks, heat exchangers, control valves and their pressures, positions, and pressure drops.