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1. |
Record Nr. |
UNINA990004849410403321 |
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Autore |
Duff, Arnold M. |
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Titolo |
Freedmen in the early roman empire / by A. M. Duff |
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Pubbl/distr/stampa |
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Cambridge : W. Heffer & Sons, 1958 |
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Descrizione fisica |
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XII, 266 p., [6] c. di tav. ; 23 cm |
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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. |
UNINA9910830925803321 |
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Autore |
Day Anthony R |
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Titolo |
Heating systems, plant and control [[electronic resource] /] / A.R. Day, M.S. Ratcliffe, K.J. Shepherd |
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Pubbl/distr/stampa |
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Oxford, UK ; ; Malden, MA, : Blackwell Science, 2003 |
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ISBN |
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1-280-21312-4 |
9786610213122 |
0-470-70942-1 |
0-470-77445-2 |
1-4051-4763-6 |
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Descrizione fisica |
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1 online resource (336 p.) |
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Altri autori (Persone) |
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RatcliffeMartin S |
ShepherdKeith |
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Disciplina |
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Soggetti |
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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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Contents; 1 Introduction; 1.1 Heating:the fundamental building service; 1.2 Low-pressure hot water; 1.3 The need for efficient heating systems; 1.4 Scope of the book; 1.5 Content of the book:an overview; PART A HEAT GENERATION; 2 Boilers and Burners; 2.1 Definition of a boiler; 2.2 Principal functional elements of a boiler; 2.2.1 Gas-fired boilers; 2.2.2 Oil-fired boilers; 2.2.3 Solid fuel boilers; 2.3 The boiler block; 2.3.1 Function of the boiler block; 2.3.2 Configuration and design; 2.3.3 The multi-pass principle; 2.3.4 Water content and temperature differential |
2.3.5 Wet-base and dry-base types2.4 The burner; 2.4.1 Function of the burner; 2.4.2 Boiler fuels and the combustion process; 2.4.3 Burner design; 2.4.4 Atmospheric natural gas burners; 2.4.5 Fan-assisted and forced-draught natural gas burners; 2.4.6 Premix natural gas burners; 2.4.7 Other natural gas burners; 2.4.8 Burners for other gases; 2.4.9 Pressure-jet oil burners; 2.4.10 Other atomizing oil burners; 2.4.11 Dual-fuel burners; 2.5 Burner operation and control; 2.5.1 Functions of burner control; 2.5.2 Modes of control for burner output; 2.5.3 On/off control of burner output |
2.5.4 High/low/off control of burner output2.5.5 Modulating control of burner output; 2.5.6 Control of burner safety; 2.6 The burner gas line; 2.7 The boiler control system; 2.7.1 Boiler controls and system controls; 2.7.2 Control of the burner; 2.7.3 Boiler safety and limit controls; 2.7.4 Reporting functions:remote monitoring; 2.8 The boiler casing; 3 Types of Boiler and Their Needs; 3.1 Types of boiler; 3.2 Boiler construction materials; 3.2.1 Range of materials; 3.2.2 Cast-iron; 3.2.3 Steel; 3.2.4 Copper and aluminium; 3.3 Methods of construction; 3.3.1 Cast-iron sectional boilers |
3.3.2 Fabricated steel boilers3.3.3 Copper boilers; 3.4 Fire-tube and water-tube boilers; 3.5 Modular boiler installations; 3.5.1 Types of modular boiler installation; 3.5.2 Modular boiler systems; 3.5.3 True modular boilers; 3.6 Heating,hot water service and combined applications; 3.7 Condensing operation; 3.7.1 Principles and benefits; 3.7.2 Requirements of condensing operation; 3.7.3 Condensing boilers; 3.7.4 Condensing economisers; 3.8 Boiler efficiency; 3.8.1 Choosing the correct definition; 3.8.2 Basis of the definition; 3.8.3 Gross and net calorific value; 3.8.4 Overall efficiency |
3.8.5 Combustion efficiency3.8.6 Seasonal efficiency; 3.9 Carbon intensity; 3.10 The needs of the boiler installation; 3.11 Hydraulic stability; 3.12 Return water temperature; 3.13 Pressure in the boiler circuit; 3.14 Fuel supply; 3.14.1 Natural gas; 3.14.2 LPG; 3.14.3 Oil; 3.15 Ventilation of the boiler plant room; 3.16 Water treatment; 4 Alternative Means of Heat Generation; 4.1 Scope of the alternatives; 4.2 Combined heat and power units; 4.2.1 The concept; 4.2.2 Application to building services; 4.2.3 Principal elements of a small-scale packaged CHP unit |
4.2.4 Typical energy balance for a small-scale packaged CHP unit |
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Sommario/riassunto |
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In many climates buildings are unable to provide comfort conditions for year-round occupancy without the benefit of a heating system, and most HVAC engineers will routinely be involved with issues concerning the design, installation and performance of such systems. Furthermore, in temperate climates, heating of buildings accounts for a large slice of annual carbon emissions. The design of heating systems for maximum efficiency and minimum carbon emission is therefore now a matter of prime concern to all HVAC engineers. The book provides an up-to-date review of the design, engineer |
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3. |
Record Nr. |
UNINA9910809501603321 |
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Autore |
Du Bois Christine M. <1962-> |
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Titolo |
The Story of Soy |
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Pubbl/distr/stampa |
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London : , : Reaktion Books, , 2018 |
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London : , : Bloomsbury Publishing (UK), , 2023 |
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ISBN |
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Edizione |
[First edition.] |
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Descrizione fisica |
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Disciplina |
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Soggetti |
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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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Introduction: Hidden Gold 1. Asian Roots 2. Europe Explores and Experiments 3. The Young Country and the Ancient Bean 4. Soy Patriotic 5. Fattening with Feed 6. Soy Swoops South 7. Moulding our World 8. Poison or Panacea? 9. Beans as Business: Big Business 10. Fat in the Fire: Soy Diesel Afterword References Select Bibliography Acknowledgements Photo Acknowledgements Index |
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Sommario/riassunto |
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The humble soybean is the world's most grown and most traded oilseed. But it is also a poorly understood crop that is often viewed in extreme terms as a superfood or poison. Christine M. Du Bois reveals its hugely significant role in human history, as she traces the story of soy from its domestication in ancient Asia to the promise and perils it offers in the twenty-first century. This illuminating book travels across the globe and includes a vast cast of fascinating figures who applaud, experiment with or despise soy, from Neolithic villagers, Buddhist missionaries, European colonialists, Japanese soldiers and Nazi strategists, to George Washington Carver, Henry Ford, Monsanto, Greenpeace, landless peasants, petroleum refiners and countless others. The story covers the impact of soy on international conflicts, its role in large-scale meat production and disaster relief, its troubling ecological impacts and the nutritional controversies swirling around soy today. It describes its genetic modification, the scandals and pirates involved in the international trade in soybeans and the use of soy as an |
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intriguing renewable fuel. Featuring compelling historical and contemporary photographs, The Story of Soy reveals the importance of soy throughout history, and why it should never be underestimated. |
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