『Original by HaiChuan Translation Team » Design Guide for Tank Truck Loading and Unloading Terminals (Part 2)

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English title: Design Guidelines For Tank Truck Loading Terminals
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Original author: ankur2061
Translator ID: @yunshih
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Time occupied by tank truck loading terminals, number of intervals, preparation time/min (Note 2), total connection time/min, slow start and stop time/min (Note 3): IIIII IVV 16540.532 2754143 3864154 4965164 51075275 61186275
Notes: 1. In the absence of data, this table can be used to meet the local conditions regarding terminal usage. The time occupied by each tank truck is the sum of the preparation time, the time required for slow starting and stopping, the normal filling time, and the time needed to operate the loading arm. This table assumes that filling is carried out in sequence at multiple intervals. 2. The periods when no loading occurs include the truck’s loading/unloading/arrangement, electrical grounding, arm coupling and decoupling, as well as document preparation. Document preparation type: I=Manual document preparation; II=Local ticket printer; III=Remote ticket printer. 3. Based on the typical volume of a tank truck (approximately 20 cubic meters, 5000 gallons), the types of slow start and stop operations are: IV=Manual control; V=Automated control with preset settings. The reciprocal of the total time per hour is the number of trucks that can be loaded per hour. 4. For the daily peak arrival periods, calculate the number of points for each product category, using a 100% terminal utilization rate. 5. Number of locations = (Peak arrival frequency, trucks/hour) * (Arrival time, hours) * (Loading time per truck, hours) / (Arrival time, hours + Maximum allowable waiting time, hours). For peak arrival cycles exceeding 1–2 weeks, the number of locations required for each product category is calculated based on an endpoint utilization rate of approximately 50%. 6. Number of locations = (loading time per vehicle) * (loading time per vehicle) / (volume per vehicle) * (daily operating hours) * (number of days open per year) * (peak days/365) * 0.5. 7. For the overall average annual load factor, calculate the number of points required for each product category based on a terminal utilization rate of 35%. Number of locations == (Volume/yr) * (Loading time/truck, hrs) / (Volume/truck) * (Terminal open hours/day) * (Days terminal is open/yr) * 0.35. Select the highest score generated by the control use case above, and then round it to the nearest integer. Minimize the total number of stops based on the following considerations. The review of requirements (peak values, peak periods, etc.) is based on a combination of low demand for one product category and demand for another product category. Step 5: Check the impact on terminal occupancy and latency. Simultaneously fill in the preset controls. Multiple products; each product has multiple loading devices per point. Change (increase/decrease) the fill rate. Step 6: Other considerations include provisions for future expansion for cleaning or inerting trucks. Loading arm capacity based on standard arm configuration. Fire detection and active/passive fire suppression. Provide locally or remotely operable emergency shut-off valves for each product line. Provide electrical grounding at all loading points. This article provides general guidelines on how to design tank truck loading terminals. However, to repeat, as the design foundation or concept for a given system, these are very general guidelines; they represent the specific project requirements that process engineers should follow when involved in designing tank truck loading terminals.