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1. |
Record Nr. |
UNINA990001766120403321 |
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Autore |
Cooper, Malcolm McGregor <1910- > |
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Titolo |
Grazing management and grassland productivy / M. MacG. Cooper |
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Pubbl/distr/stampa |
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Belfast : Marjory Boyd, 1961 |
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Descrizione fisica |
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Disciplina |
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Locazione |
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Collocazione |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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2. |
Record Nr. |
UNINA9910781393903321 |
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Autore |
Schemenauer Kevin <1981-> |
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Titolo |
Conjugal love and procreation [[electronic resource] ] : Dietrich von Hildebrand's superabundant integration / / Kevin Schemenauer |
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Pubbl/distr/stampa |
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Lanham, Md., : Lexington Books, c2011 |
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ISBN |
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1-283-05681-X |
9786613056818 |
0-7391-4708-0 |
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Descrizione fisica |
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1 online resource (226 p.) |
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Disciplina |
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Soggetti |
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Sex - Religious aspects - Catholic Church |
Marriage - Religious aspects - Catholic Church |
Human reproduction - Religious aspects - Catholic Church |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Conjugal love and marriage -- The depth of the conjugal act -- The |
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primary meaning of marriage -- Reverence and superabundance -- The rhythm method -- Artificial birth control. |
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Sommario/riassunto |
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While some argue that this German Catholic philosopher and theologian neglected the role of procreation in marriage, this book shows that von Hildebrand's writings on reverence and superabundant finality contribute to a contemporary understanding of the significance of procreation within marriage. Schemenauer analyzes von Hildebrand's integration of conjugal love and procreation, showing him to be an insightful and parallel voice to the that of John Paul II. |
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3. |
Record Nr. |
UNINA9910806195203321 |
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Autore |
Niu Steve S |
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Titolo |
Process Control for Pumps and Compressors |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing AG, , 2024 |
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©2023 |
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ISBN |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (292 pages) |
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Collana |
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Advances in Industrial Control Series |
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Disciplina |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di contenuto |
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Intro -- Series Editor's Foreword -- Foreword -- Preface -- Contents -- Symbols and Abbreviations -- Symbols -- Constants -- Functions -- Subscripts -- Fonts -- Abbreviations -- List of Figures -- List of Tables -- 1 Introduction to Pumps and Compressors -- 1.1 Type of Pumps and Compressors -- 1.1.1 Rotating Equipment -- 1.1.2 Pumps and Compressors -- 1.1.3 Centrifugal and Reciprocating Machines -- 1.1.4 Fans and Blowers -- 1.2 Applications of Pumps and Compressors -- 1.2.1 Liquid Pumping -- 1.2.2 Gas Compression -- 1.3 Operation and Control of Pumps and Compressors -- 1.3.1 Operating Requirements and Control Objectives -- 1.3.2 Overall Control Strategy -- 1.3.3 Process Control Technologies -- 1.3.4 Monitoring and Safeguarding -- 1.4 Practical Considerations -- 1.4.1 Process-Centric Versus Equipment-Centric Solutions -- 1.4.2 In-House Versus Third-Party |
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Solutions -- 1.5 Summary -- References -- 2 Characteristics of Pumps and Compressors -- 2.1 Basic Properties of Fluids -- 2.1.1 Basic Principles of Fluid Dynamics -- 2.1.2 Basic Principles of Thermodynamics -- 2.1.3 Gas Compression Process -- 2.1.4 Liquid Transport Process -- 2.2 Description of Pumps and Compressors -- 2.2.1 Three Variables: Speed, Head, and Flow -- 2.2.2 Two Curves: Performance and Resistance Curves -- 2.2.3 One Point: Operating Point -- 2.2.4 † Other Variables and Curves -- 2.3 Behaviors of Dynamic Machines -- 2.3.1 Relationship Among Head, Flow, and Speed -- 2.3.2 † Suction and Discharge Relationship -- 2.3.3 ‡ Euler's Equation and Slope of Performance Curve -- 2.3.4 ‡ System Resistance and Slope of Resistance Curve -- 2.4 Surge and Choke Phenomena -- 2.4.1 Surge and Choke Points -- 2.4.2 Surge Line and Choke Line -- 2.5 Summary -- References -- 3 Operating Requirements and Control Objectives -- 3.1 Operating Objectives and Requirements -- 3.2 Maintaining the Operating Point. |
3.2.1 Operating with Single Control Handle -- 3.2.2 Operation with Multiple Control Handles -- 3.2.3 † Capacity Turndown -- 3.3 Protecting the Operating Envelope -- 3.3.1 Operation Under Abnormal Operating Conditions -- 3.3.2 ‡ Flow in System Resistance Components -- 3.4 Transitioning Between Operating Modes -- 3.4.1 Startup of Centrifugal Machines -- 3.4.2 Shutdown of Centrifugal Machines -- 3.4.3 † Crippled Operation -- 3.5 Summary -- References -- 4 Overall Control Strategy -- 4.1 Overall Control Strategy -- 4.1.1 General Control Philosophy -- 4.1.2 Overall Control Objectives -- 4.1.3 Layered and Integrated Design -- 4.1.4 Migration from Proprietary to Open-Platform Solutions -- 4.2 Regulatory Control: Capacity Control -- 4.2.1 Capacity Control Objectives -- 4.2.2 Process Dynamics and Cause-and-Effect Relationships -- 4.2.3 Process Measurements and Controlled Variables -- 4.2.4 Final Control Elements and Manipulated Variables -- 4.2.5 Capacity Control Algorithms -- 4.3 Protective Control: Anti-surge Control -- 4.3.1 Protective Control Objectives -- 4.3.2 Process Dynamics for Operating Envelope -- 4.3.3 Measurements and Controlled Variables -- 4.3.4 Recycle Valve and Manipulated Variables -- 4.3.5 Protective Control Algorithms -- 4.4 Control Integration and Optimization -- 4.4.1 Sequential Control: Mode Transition -- 4.4.2 Instrumented Safeguarding Against Failures -- 4.4.3 Online Performance Monitoring -- 4.4.4 † Integration of Capacity and Anti-surge Control -- 4.4.5 ‡ Load Balancing and Optimization -- 4.5 Summary -- References -- 5 Invariant Coordinates and Surge Indicators -- 5.1 Inlet Conditions and Invariant Coordinate Systems -- 5.1.1 API Datasheet for Compressor -- 5.1.2 † Impact of Inlet Conditions -- 5.1.3 Invariant Coordinate -- 5.2 Equivalent Coordinates -- 5.2.1 † Alternative Variables for Polytropic Head. |
5.2.2 † Alternative Variables for Volumetric Flow -- 5.2.3 † Equivalent Coordinate Systems -- 5.3 Surge Reference Line and Surge Indicators -- 5.3.1 Surge Reference Line -- 5.3.2 Surge Indicators -- 5.4 Calculation of Anti-surge Parameters -- 5.5 Summary -- References -- 6 Basic Control Schemes -- 6.1 Centrifugal Pumps -- 6.1.1 Capacity Control -- 6.1.2 Minimum and Maximum Flow Control -- 6.1.3 A Complete Control Design -- 6.2 Centrifugal Compressors -- 6.2.1 Capacity Control -- 6.2.2 Anti-surge Control -- 6.2.3 Anti-surge Parameter Calculation -- 6.2.4 † Flowmeter Design -- 6.2.5 Instrumented Safeguarding -- 6.2.6 A Complete Control Design -- 6.3 Reciprocating Pumps and Compressors -- 6.3.1 Capacity Control for Reciprocating Machines -- 6.3.2 Protective Control for Reciprocating Machines -- 6.4 Practical Considerations -- 6.4.1 Speed of Response -- 6.4.2 † Sensitivity Analysis -- 6.5 Summary -- References -- 7 |
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Advanced Control Solutions -- 7.1 Integration Between Capacity and Anti-surge Control -- 7.1.1 Capacity Control Revisited -- 7.1.2 An Unintegrated Design -- 7.1.3 Integrated Design of Capacity and Anti-surge Control -- 7.1.4 † Integrated Design with Feedforward Compensation -- 7.2 Load-Balancing Control -- 7.2.1 † Load Balancing Among Compressor Trains -- 7.2.2 ‡ Load Balancing Among Stages -- 7.3 A Fully Integrated Control Design -- 7.3.1 A Complete Solution for Compressor Control -- 7.3.2 † Integration Between Control and Safeguarding -- 7.3.3 A Real-World Example -- 7.4 Multi-machine Optimization -- 7.4.1 † Pumps and Compressors in Parallel -- 7.4.2 † Pumps and Compressors in Series -- 7.5 Implementation Considerations -- 7.5.1 Naming Convention -- 7.5.2 Manual Versus Automatic Operation -- 7.5.3 † Controller Configurations -- 7.6 Summary -- References -- 8 Commissioning, Startup, and Monitoring -- 8.1 Application Life Cycle. |
8.2 Commissioning -- 8.2.1 Factory Acceptance Test (FAT) -- 8.2.2 Site-Acceptance Test (SAT) -- 8.3 Plant Startup -- 8.3.1 Incipient Surge Test -- 8.3.2 Pre-startup -- 8.3.3 During Startup -- 8.3.4 Post-startup -- 8.4 Performance Monitoring -- 8.4.1 Performance Indicators -- 8.4.2 Performance Visualization -- 8.5 Troubleshooting and Problem-Solving -- 8.5.1 † Surge Detection -- 8.5.2 † Troubleshooting of Surge Control Scheme -- 8.6 Summary -- References -- Appendix A Performance Analysis and Control Design with Software Tool -- A.1 Introduction -- A.1.1 Data Requirements -- A.1.2 The Work Process -- A.1.3 The CPACS Software Tool -- A.2 Data Preparation and Management -- A.2.1 Data Format -- A.2.2 Source of Design Data -- A.2.3 Engineering Units -- A.3 Data Visualization and Validation -- A.3.1 Automatic Error Detection -- A.3.2 Visual Inspection -- A.4 Surge Parameter Calculation -- A.4.1 Anti-surge Parameters Calculation -- A.4.2 Data Selection -- A.4.3 ASP Formula -- A.4.4 Real-Time Data -- A.5 Summary -- References -- Appendix Glossary -- Index. |
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