Page 11 - Industrial Ventilation Design Guidebook

X CONTENTS

7.8.5 Air and Contaminant Movement between Building Zones 591
References 598
Bibliography 599

8 Room Air Conditioning 601

8.1 Introduction 603
8.2 Basis for Air Conditioning Design 604
8.2.1 Industrial Process Description 604
8.2.2 Requirements for Indoor Environment 605
8.2.3 Architectural Design for an Industrial Enclosure 607
8.2.4 Worker Involvement in the Production Process 608
8.2.5 Load Calculation 608
8.2.6 Characterization of Room Airflow and Thermal Conditions
Based on Industrial Production Process and Envelope 610
8.2.7 Analyses and Actions to Be Considered Prior
to Performing Room Air Conditioning Design 611
8.3 Air Recirculation 611
8.3.1 Introduction 611
8.3.2 Different Recirculation Systems 612
8.3.3 Central Recirculation System 613
8.3.4 Local Recirculation 615
8.3.5 Conclusion 618
References 618
8.4 Two-Zone Model Description 619
8.4.1 Zonal Models 619
8.4.2 Two-Zone Model 620
8.4.3 Two-Zone Model Calculation 620
8.4.4 Two-Zone Model Solutions 624
References 624
8.5 Effective and Efficient Ventilation 625
8.5.1 Ventilation Efficiency Indices 625
8.5.2 Contaminant Removal Effectiveness 626
8.5.3 Contaminant Removal Efficiency 627
8.5.4 Air Exchange Efficiency 628
8.5.5 Air Distribution Performance Index 628
R eferen ces 62 9
8.6 Room Air Conditioning Strategies 629
8.6.1 Introduction 629
8.6.2 Classification for Room Air Conditioning Strategies 630
8.6.3 Piston Strategy 631
8.6.4 Stratification Strategy 633
8.6.5 Zoning Strategy 635
8.6.6 Mixing Strategy 636
8.6.7 Application of the Strategy in System Selection 638
8.6.8 Summary 639
References 639