EQUIPMENT DESIGN: BASIC CONCEPTS GOALS. ◆ Definitions and Concepts ◆ Types of Design Design Methodology /2499 Equipment desi
8/24/99 Equipment Design 1 EQUIPMENT DESIGN: BASIC CONCEPTS GOALS: u Definitions and Concepts u Types of Design u Design Methodology
EQUIPMENT CHARACTERIZATION Input Output Streams Streams Operating size Parameters Parameters /2499 Equipment desi
8/24/99 Equipment Design 2 Input Streams Output Streams Operating Parameters Size Parameters EQUIPMENT CHARACTERIZATION
DEFINITIONS ◆ EOUIPMENT RATING E Given the input streams, operating parameters, and size parameters, determine the eguipment performance and output streams ◆ EOUIPMENT SIZING E Given the input streams and the performance specifications, estimate the economically important size parameters using approximate methods ◆ EOUIPMENT DESIGN: E Produce a design in enough detail to guide the fabrication of the item ofequipment /2499 Equipment desi
8/24/99 Equipment Design 3 DEFINITIONS u EQUIPMENT RATING: ð Given the input streams, operating parameters, and size parameters, determine the equipment performance and output streams u EQUIPMENT SIZING: ð Given the input streams and the performance specifications, estimate the economically important size parameters using approximate methods u EQUIPMENT DESIGN: ð Produce a design in enough detail to guide the fabrication of the item of equipment
Equipment Design Methodology Determine Performance Operational Specifications Constraints Choose Equipment Try First Type and Design Parameters Perform Rating Calculations Iterate sfy Specs R Constraints Yes Done /2499 Equipment desi
8/24/99 Equipment Design 4 Equipment Design Methodology Set Performance Specifications Determine Operational Constraints Choose Equipment Type and Design Parameters Perform Rating Calculations Satisfy Specs & Constraints? No Iterate Yes Done Try First
EXAMPLE #l: REFLUX DRUMI PROBLEM: Design a reflux drum for a distillation column o For a residence time of 15 minutes when half full, That has a length to diameter ratio L/d=3.0 and ◆ Is horizontal. OPERATING CONDITIONS o Flow rate out of drum is 5, 000 Kg/hr Flow is 100% Ethanol SG=0.7891 8/24/99 Equipment desi
8/24/99 Equipment Design 5 EXAMPLE #1: REFLUX DRUM PROBLEM: Design a reflux drum for a distillation column u For a residence time of 15 minutes when half full, u That has a length to diameter ratio L/D = 3.0, and u Is horizontal. OPERATING CONDITIONS: u Flow rate out of drum is 5,000 Kg/hr u Flow is 100% Ethanol (SG = 0.789)