Degree-days : theory and application.

Degree-days are a tool that can be used in the assessment and analysis of weather related energy consumption in buildings. They have their origins in agricultural research where knowledge of variation in outdoor air temperature is important, and the concept is readily transferable to building energy...

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Bibliographic Details
Corporate Author Chartered Institution of Building Services Engineers
Format Electronic eBook
LanguageEnglish
Published London : Chartered Institution of Building Services Engineers, [2006]
SeriesCIBSE ; TM41: 2006.
Subjects
Degree days.
Commercial buildings > Energy consumption.
elektronické knihy
electronic books
Online AccessFull text
ISBN9781680150193
1680150197
Physical Description1 online resource

Cover

Table of Contents:
  • 1. An introduction to degree-days and their uses: An introduction to calculating degree-days ; Degree-days for energy estimation ; Degree-days for energy management
  • 2. Calculating degree-days: Mean degree-hours ; The Meteorological Office equations ; Mean daily temperature ; Hitchin's formula ; Other methods ; Errors associated with calculation methods ; Base temperature correction ; Summary
  • 3. Energy estimation techniques: Heating applications ; Intermittent heating ; Accuracy and uncertainty ; Carbon dioxide emissions ; Determination of gains ; Cooling applications ; Summary
  • 4. Worked examples: Heating ; All-air cooling
  • 5. Using degree-days in energy management: Normalisation of energy performance indicators for weather ; Energy signatures ; Performance lines and degree-days ; Further diagnostics using performance lines ; Regression analysis: caveats and interpretations ; Summary.
  • Appendices: 1. Degree-day errors ; 2. Ratios and corrections ; 3. Base temperature conversion using Hitchin's formula ; 4. Derivation of mean internal temperature for intermittent heating ; 5. Areas of on-going work.

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