Items in cart [0] Questions? Call 888-624-8373

PAPERBACK + PDF your price: $41.00 add to cart PAPERBACK list:$35.00 Web:$31.50 add to cart PDF BOOK your price: $27.00 add to cart PDF CHAPTERS your price: $2.10 select Rights & Permissions Free Resources PDF Report Brief PDF EXECUTIVE SUMMARY Display this book on your site! Related Titles Prospective Evaluation of Applied Energy Research and Development at DOE (Phase Two) Review of the Research Program of the FreedomCAR and Fuel Partnership: First Report Other Related Titles The Hydrogen Economy: Opportunities, Costs, Barriers, and R&D Needs (2004) National Academy of Engineering (NAE) Board on Energy and Environmental Systems (BEES) Web Search Builder Use this book's key terms to search within this book, across our collection, or across the Web. Skim This Chapter Skim this chapter and use this chapter's key terms to search within this book. Reference Finder Paste in your own text to find books that relate to your topic. Page 240 The following HTML text is provided to enhance online readability. Many aspects of typography translate only awkwardly to HTML. Please use the page image as the authoritative form to ensure accuracy. Appendix H Useful Conversions and Thermodynamic Properties TABLE H-1 Conversion Factors metric ton (tonne) = 1000 kg = 1.1023 short tons Btu = 1055 J quad = 1015 Btu = 1.055 EJ liter = 0.2642 gallons U.S. cubic meter (m3) = 35.31 cubic feet conversions for hydrogen: 1 million scf/day = 2.65 short tons/day 1 kg = 11.13 N-m3 (0 degrees Celsius and 1 atmosphere) 1 kg = 415.6 scf (60 degrees Fahrenheit and 1 atmosphere) NOTE: scf = standard cubic feet; Btu = British thermal unit; EJ = exajoule = 1018 joules; N-m3 = normal cubic meter; kg = kilogram. TABLE H-2 Thermodynamic Properties of Chemicals of Interest Parameter Value Hydrogen HHV (ΔH) –286 kJ/mol Hydrogen LHV (ΔH) –242 kJ/mol Methane gross heat of combustion HHV (ΔHc) –891 kJ/mol Energy content of 1 kg hydrogen 141.9 MJ (HHV) = 39.4 kWh 120.1 MJ (LHV) = 33.3 kWh of 1 N-m3 hydrogen 12.7 MJ (HHV) of 1 pound of hydrogen 64.4 MJ (HHV) = 61.0 kBtu of 1 gallon gasoline 121.3 MJ (LHV); 115,000 Btu (LHV) NOTE: HHV = higher heating value; LHV = lower heating value; ΔH = enthalpy; J = joule; Btu = British thermal unit; M = million; k = thousand; mol = mole; N-m3 = normal cubic meter; kWh = kilowatt hour. SOURCE: NIST (2003), except DOE (2003f) for gasoline data. Page 240 Front Matter (R1-R16) Executive Summary (1-7) 1. Introduction (8-10) 2. A Framework for Thinking About the Hydrogen Economy (11-24) 3. The Demand Side: Hydrogen End-Use Technologies (25-36) 4. Transportation, Distribution, and Storage of Hydrogen (37-44) 5. Supply Chains for Hydrogen and Estimated Costs of Hydrogen Supply (45-63) 6. Implications of a Transitionto Hydrogen in Vehicles for the U.S. Energy System (64-83) 7. Carbon Capture and Storage (84-90) 8. Hydrogen Production Technologies (91-105) 9. Crosscutting Issues (106-115) 10. Major Messages of the Report (116-122) References (123-126) Appendix A: Biographies of Committee Members (127-132) Appendix B: Letter Report (133-136) Appendix C: DOE Hydrogen Program Budget (137-138) Appendix D: Presentations and Committee Meetings (139-140) Appendix E: Spreadsheet Data from Hydrogen Supply Chain Cost Analyses (141-193) Appendix F: U.S. Energy Systems (194-197) Appendix G: Hydrogen Production Technologies: Additional Discussion (198-239) Appendix H: Useful Conversions and Thermodynamic Properties (240-240)

Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.

OCR for page 240
The Hydrogen Economy: Opportunities, Costs, Barriers, and R&D Needs Appendix H Useful Conversions and Thermodynamic Properties TABLE H-1 Conversion Factors metric ton (tonne) = 1000 kg = 1.1023 short tons Btu = 1055 J quad = 1015 Btu = 1.055 EJ liter = 0.2642 gallons U.S. cubic meter (m3) = 35.31 cubic feet conversions for hydrogen: 1 million scf/day = 2.65 short tons/day 1 kg = 11.13 N-m3 (0 degrees Celsius and 1 atmosphere) 1 kg = 415.6 scf (60 degrees Fahrenheit and 1 atmosphere) NOTE: scf = standard cubic feet; Btu = British thermal unit; EJ = exajoule = 1018 joules; N-m3 = normal cubic meter; kg = kilogram. TABLE H-2 Thermodynamic Properties of Chemicals of Interest Parameter Value Hydrogen HHV (ΔH) –286 kJ/mol Hydrogen LHV (ΔH) –242 kJ/mol Methane gross heat of combustion HHV (ΔHc) –891 kJ/mol Energy content of 1 kg hydrogen 141.9 MJ (HHV) = 39.4 kWh 120.1 MJ (LHV) = 33.3 kWh of 1 N-m3 hydrogen 12.7 MJ (HHV) of 1 pound of hydrogen 64.4 MJ (HHV) = 61.0 kBtu of 1 gallon gasoline 121.3 MJ (LHV); 115,000 Btu (LHV) NOTE: HHV = higher heating value; LHV = lower heating value; ΔH = enthalpy; J = joule; Btu = British thermal unit; M = million; k = thousand; mol = mole; N-m3 = normal cubic meter; kWh = kilowatt hour. SOURCE: NIST (2003), except DOE (2003f) for gasoline data.

Representative terms from entire chapter:

british thermal