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District Heating and Cooling

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Moving heat and cold efficiently in urban areas is the main goal of district heating and cooling systems. By connecting suitable customer heat and cold demands with available heat and cold sources, the demands can be met by lower resource use in comparison to conventional heat and cold supply, such as boilers and air conditioners. The textbook contains chapters about the fundamental idea, energy markets, customer demands, load variations, supply, environmental impact, distribution, substation...

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Moving heat and cold efficiently in urban areas is the main goal of district heating and cooling systems. By connecting suitable customer heat and cold demands with available heat and cold sources, the demands can be met by lower resource use in comparison to conventional heat and cold supply, such as boilers and air conditioners. The textbook contains chapters about the fundamental idea, energy markets, customer demands, load variations, supply, environmental impact, distribution, substations, system functioning, economics, planning, historical development, current and future use, organisation, and information sources concerning the flows of heat and cold in district heating and cooling systems. District heating and cooling is an interdisciplinary technology containing elements from many general technologies and methodologies such as combustion, heat transfer, piping, marketing, billing etc. Our mission has been to provide basic introductory knowledge about aspects typical of district heating and cooling, which is very vital for a basic understanding of, or very unique for, this niche technology. We have a rather broad range of readers in mind: District heating engineers, university students of engineering, and employees at district heating companies in general. We will be happy if urban planners, economists, policymakers and others interested in the topic will find that this book provides tangible and useful information about district heating and cooling.

Stäng
      • 11
        Preface
      • 15
        Chapter 1 Introduction
        • 17
          Chapter contents
        • 20
          Terminology and nomenclature
        • 22
          Literature
      • 23
        Chapter 2 The fundamental idea of district heating
        • 29
          Literature
        • 29
          Study questions for Chapter 2
      • 31
        Chapter 3 Energy, heat, and cold markets
        • 31
          Energy markets
        • 35
          Literature
        • 35
          Heat markets
        • 38
          Cold markets
        • 42
          Literature
        • 43
          Study questions for Chapter 3
      • 45
        Chapter 4 Heat and cold demands
        • 45
          Space heating
        • 56
          Literature
        • 56
          Domestic hot water supply
        • 59
          Literature
        • 60
          Specific heat use in buildings
        • 62
          Literature
        • 63
          Industrial heat demands
        • 64
          Literature
        • 64
          Other heat demands
        • 65
          Literature
        • 66
          Cold demands
        • 68
          Literature
        • 69
          Study questions for chapter 4
      • 71
        Chapter 5 Heat and cold loads
        • 71
          Heat load definition
        • 72
          Aggregate heat loads before substations
        • 80
          Distribution heat losses
        • 80
          Heat loss calculations
        • 85
          Temperature drop in the respective directions of flow
        • 85
          Annual heat losses
        • 88
          Literature
        • 89
          Heat and cold loads in distribution networks
        • 91
          Aggregate heat loads after heat supply units
        • 91
          Seasonal heat load variations
        • 92
          Heat load weather dependence
        • 95
          Daily heat load variations
        • 98
          Heat load composition
        • 99
          Short-term heat load forecasting
        • 100
          Literature
        • 100
          Heat load parameters
        • 100
          Diversity
        • 101
          Capacity utilisation
        • 109
          Design heat load
        • 110
          Literature
        • 111
          Cold loads
        • 116
          Literature
        • 116
          Study questions and problems for chapter 5
      • 119
        Chapter 6 Heat and cold supply
        • 119
          A wide range of possible energy supply sources
        • 128
          Boilers and solid fuel combustion
        • 141
          Literature
        • 142
          Flue gas cleaning and flue gas condensation
        • 142
          Flue gas cleaning
        • 145
          Boiler efficiency and flue gas condensation
        • 151
          Combined flue gas cleaning and condensation
        • 152
          Literature
        • 153
          Combined heat and power
        • 154
          The CHP concept
        • 156
          Basic CHP idea illustrated by a gas turbine plant
        • 159
          Performance measures
        • 162
          Back pressure steam cycle CHP plant
        • 170
          High efficiency steam CHP plant
        • 171
          Extraction-condensing steam CHP plant
        • 176
          Theoretical Carnot cycle CHP plant
        • 178
          Combined cycle CHP plant
        • 180
          Small-scale CHP plant
        • 190
          Normalised P-Q diagram with efficiency measures
        • 191
          CHP versus small-scale heat pumps
        • 195
          Carbon capture and storage CHP
        • 196
          Literature
        • 198
          Waste incineration (Waste-to-Energy
        • 202
          Literature
        • 203
          Heat recycling from industrial processes
        • 210
          Literature
        • 210
          Polygeneration
        • 212
          Literature
        • 212
          Geothermal district heating and cooling
        • 212
          Overview
        • 213
          Size of the geothermal resource
        • 214
          Ground source heat pumps, a definition issue
        • 214
          Geographical distribution and temperature levels
        • 216
          Geothermal district heating technology
        • 218
          Geothermal combined heat and power
        • 222
          Literature
        • 223
          Large-scale ambient cold sources
        • 224
          Literature
        • 226
          Large heat pumps and chillers
        • 226
          Vapour compression heat pumps and chillers
        • 235
          Absorption heat pumps and chillers
        • 243
          Literature
        • 244
          Solar district heating and cooling
        • 248
          Literature
        • 249
          Nuclear district heating
        • 251
          Literature
        • 252
          Electric boilers
        • 253
          Peak and backup heat generation
        • 257
          Literature
        • 258
          Heat and cold storage
        • 259
          Load shifting
        • 261
          Short-time heat storage technology and flowcharts
        • 265
          Short-time cold storage technology
        • 268
          Literature
        • 268
          Study questions and problems for Chapter 6
      • 271
        Chapter 7 Environmental impact and opportunities
        • 271
          Local and regional air quality
        • 275
          Benefits of district cooling
        • 275
          Climate change
        • 278
          Literature
        • 279
          7.4 Environmental opportunities – summing up
        • 280
          Study questions and problems for Chapter 7
      • 281
        Chapter 8 Heat and cold distribution technology
        • 281
          Historical development of heat distribution technology
        • 282
          First generation: Steam distribution
        • 287
          Second generation: Hot water distribution inside ducts
        • 290
          On the way to third-generation heat distribution technology
        • 292
          The third generation of heat distribution technology
        • 296
          Literature
        • 297
          Joints
        • 299
          Valves
        • 303
          Literature
        • 304
          Durability and methods of laying rigid pipes
        • 304
          Stress-based design of carrier pipes of rigid, bonded pipe assemblies
        • 308
          Solid mechanics of restrained thermal expansion
        • 312
          Pipe-laying methods
        • 316
          Strain- and fatigue-based design of carrier pipes
        • 322
          Literature
        • 323
          Insulation foam and jacket pipes
        • 329
          Literature
        • 330
          Insulation sizing
        • 336
          Literature
        • 336
          Underground installation of rigid pipes
        • 342
          Literature
        • 342
          Flexible pipes
        • 348
          Literature
        • 348
          Overland pipes, pipes in tunnels, and pipes inside houses
        • 349
          Literature
        • 350
          Number of pipes in parallel
        • 352
          Literature
        • 353
          Cold carrier distribution
        • 359
          Literature
        • 360
          Water chemistry
        • 366
          Literature
        • 366
          Study questions and problems for chapter 8
      • 369
        Chapter 9 Substations
        • 369
          The substation concept
        • 372
          Literature
        • 373
          Desired temperature performance
        • 375
          Literature
        • 375
          Hydraulic separation
        • 379
          Examples of detailed layouts
        • 385
          Literature
        • 385
          Cascading
        • 388
          Literature
        • 389
          Selection of equipment
        • 389
          Heat exchangers
        • 392
          Valves and controls
        • 396
          Hot water storage tanks
        • 400
          Testing the equipment
        • 400
          Literature
        • 401
          Sizing of equipment
        • 401
          Overall considerations
        • 405
          Heat exchangers
        • 410
          Hot water storage tanks
        • 410
          Control valves
        • 413
          Literature
        • 414
          Adapting hydronic space heating systems
        • 414
          Energy saving measures
        • 414
          Elimination of recirculation and three-way valves
        • 418
          Optimised radiator flow rate and supply temperature
        • 419
          Single-pipe hydronic heating systems
        • 420
          Literature
        • 421
          District cooling substations
        • 427
          Literature
        • 427
          Metering in substations
        • 440
          Literature
        • 441
          Study questions and problems for Chapter 9
      • 443
        Chapter 10 System functioning
        • 443
          Grid structures and maps
        • 443
          Heat density
        • 445
          Typical growth structures
        • 447
          Typical network structures
        • 449
          Developed network structure
        • 450
          Regional district heating systems
        • 452
          Literature
        • 453
          Heat and cold distribution
        • 454
          Flow distribution
        • 454
          Pressure drop
        • 458
          Pumping power
        • 459
          Pressure head gradients and pressurisation
        • 467
          Pressure surges
        • 469
          Carrier pipe sizing and choice of flow velocity
        • 473
          Literature
        • 475
          Temperature levels
        • 481
          Literature
        • 482
          Heat demand and load control
        • 484
          Grid control and four operating modes
        • 487
          Central maximum supply temperature control
        • 487
          Local minimum supply temperature control at the grid periphery
        • 487
          Central and local maximum pressure control
        • 488
          Central and local minimum pressure control
        • 488
          Four operating modes
        • 490
          System responses to altered demand conditions
        • 491
          Dynamic load responses
        • 493
          Literature
        • 493
          Heat supply from multiple sources
        • 496
          System monitoring
        • 496
          Short term planning
        • 498
          System supervision
        • 499
          Documentation and analyses
        • 499
          Literature
        • 500
          Reliability and availability issues
        • 500
          Reliability level
        • 502
          Operating problems
        • 504
          Maintenance
        • 505
          Literature
        • 507
          Development of system functioning
        • 509
          Study questions and problems for Chapter 10
      • 511
        Chapter 11 Economics and planning
        • 513
          Cash flow based profitability analysis
        • 514
          Present value and the Net Present Value decision rule
        • 516
          Investment periods and hurdle rates in district heating
        • 517
          Profitability in existing operations
        • 518
          Valuation of incremental investments
        • 518
          Allocation of synergy benefits
        • 524
          Literature
        • 525
          Heat supply optimisation
        • 530
          Literature
        • 531
          Distribution costs
        • 536
          Literature
        • 537
          Extension planning
        • 540
          Literature
        • 541
          Price models
        • 544
          Literature
        • 544
          Heat supply costs versus local energy efficiency measures
        • 547
          Literature
        • 547
          Economy-of-size
        • 548
          District cooling
        • 550
          Study questions and problems for chapter 11
      • 553
        Chapter 12 District heating and cooling development
        • 553
          District heating
        • 558
          Literature
        • 559
          District cooling
        • 564
          Literature
        • 565
          Future district heating and cooling
        • 566
          Structure definition
        • 571
          Identification
        • 571
          Adaptation
        • 572
          Study questions and problems for chapter 12
        • 573
          Chapter 13 Organisation
        • 573
          Legislation
        • 574
          Literature
        • 574
          Market rules
        • 577
          Literature
        • 578
          Ownership
        • 580
          Literature
        • 580
          Study questions and problems for Chapter 13
        • 581
          Chapter 14 Information sources
        • 581
          Textbooks
        • 582
          Literature
        • 582
          Handbooks
        • 583
          Literature
        • 583
          Journals
        • 585
          Conferences
        • 585
          Statistics
        • 587
          <

If you are responsible for planning the energy future for a city or community, reading this text book should be your first order of business. The authors have created a highly informative and sequential guidebook, reflecting over 30 years of experience and insight, that lays out in thoughtful steps, a wholesale curriculum for planning, designing, constructing and optimizing district heating and cooling systems for cities, communities, campuses and clusters. District heating and cooling (also known as district energy) is a highly efficient and reliable approach to providing useful energy to multiple buildings, or entire cities, that can reduce harmful emissions, conserve fuels, reduce water usage and cut primary energy waste. This textbook explains in detail the technologies and best practices and helps the reader to understand not only complex economic models but essential energy protocols that have too long been the mystery of the district energy industry. As a 30 year professional in this field myself I am very pleased to recommend this book District Heating and Cooling as the essential industry textbook for experienced industry veterans, newly ensconced professionals and for those individuals seeking practical energy solutions for our over-populated planet.

Information

Språk:

Engelska

ISBN:

9789144085302

Utgivningsår:

2013

Artikelnummer:

36005-01

Upplaga:

Första

Sidantal:

586
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