INTRODUCTION A. Types of Material Balance Problems B. Historical Perspective I. CONSERVATION OF MASS 5 A. Control Volumes B. Holdup or Inventory . Material Balance Basis D. Material Balances II. PROCESSES

THE TWO BASIC INVESTMENT CONCERNS PROFITABILITY (HOW MUCH MONEY WILL I MAKE?) risK (WHAT ARE MY CHANCES OF MAKING IT?)

DESIGN METHODOLOGY goaL-- Produce design for chemical plant that: Is economically acceptable and Is operable,ie., eIs safe → Is controllable Is reliable,and Is environmentally acceptable

DESIGN METHODOLOGY: INPUT-OUTPUT DECISIONS goaL-- Choose the process chemistry and feedstock most appropriate to the plant to be designed and determine the associated economic potential

DESIGN METHODOLOGY III: RECYCLE STRUCTURE OF THE PROCESS goAL-- Determine alternate recycle structures for the process based on reactor operating requirements

.Unsteady, aperiodic motion in which all three velocity components fluctuate→ mixing matter, momentum, and energy. Decompose velocity into mean and fluctuating parts:

DESIGN METHODOLOGY: CHOICE OF PROCESS TYPE goaL-- Choose the process type appropriate to the plant to be designed

ENGINEERING ECONOMICS ESTIMATING THE PROFITABILITY OF A CHEMICAL PLANT Estimating Investment Estimating Cost of Production Profitability Evaluation Return on Investment (ROD) Payout time(Tpay) DCF Rate of Return(DCFROR) Transfer Price

Main engine starter is common across airports service these aircraft(11 common) Airline only has to stock 14 spares as

Aerospace Overview Initiative Background LESAT Development Process LESAT Architecture and Practices Assessment Process LESAT Research Results Nightingale-2 2002 Massachusetts Institute of Technology