- Page 1: Reversible R744 (CO2) heat pumps ap
- Page 6 and 7: TABLE OF CONTENTS ABSTRACT.........
- Page 8 and 9: TABLE OF FIGURES Figure A. 1 Pressu
- Page 10 and 11: heated with a CO2 heat pump in stea
- Page 12 and 13: ABBREVATIONS CO2 Carbon Dioxide, R7
- Page 14 and 15: A INTRODUCTION The objective of thi
- Page 16 and 17: (Official Journal of the European U
- Page 18 and 19: Compressor The compressor is a volu
- Page 20 and 21: Two-stage cycle with flash gas bypa
- Page 22 and 23: The evolution and history of LCCP a
- Page 24 and 25: The most articles and presentation
- Page 26 and 27: Hans Olav Ness senior counsellor in
- Page 28 and 29: Annual energy savings compared with
- Page 30 and 31: B.1.4 Maximum and minimum exterior
- Page 32 and 33: Pressure [bar] 90 80 70 60 50 40 30
- Page 34 and 35: Rooftop Train Roof ceiling High pre
- Page 36 and 37: B.2.2 Solution II GC2 Exhaust air e
- Page 38 and 39: B.2.3 Solution III GC2 Evap2 Exhaus
- Page 40 and 41: B.3 Discussion of system layout Sol
- Page 42 and 43: As the figure above shows the simul
- Page 44 and 45: Work compressor [kW] 6 4 2 Ambient
- Page 46 and 47: C.2.2 ProII model cooling mode VALV
- Page 48 and 49: C.2.3 Presentation and discussion o
- Page 50 and 51: Mass flow CO2 [kg/h] 1000 900 800 7
- Page 52 and 53: C.3.2 New system circuit Figure C.
- Page 54 and 55:
C.3.4 Presentation and discussion o
- Page 56 and 57:
Heat capacity [kW] 20 18 16 14 12 1
- Page 58 and 59:
D EXPERIMENTAL WORK D.1 Throttling
- Page 60 and 61:
D.2.1 General assumptions • Compr
- Page 62 and 63:
D.2.3 Calculation method used in th
- Page 64 and 65:
Table D. 1 Optimal high side pressu
- Page 66 and 67:
Table D. 2 COP Improvement for Syst
- Page 68 and 69:
important that this temperature is
- Page 70 and 71:
D.4.2 Series 3.1 Pressure [bar] 100
- Page 72 and 73:
D.4.4 Series 3.3 Pressure [bar] 100
- Page 74 and 75:
E LCCP COMPARATION OF REVERSIVLE CO
- Page 76 and 77:
E.2 Case study on driving the CO2 s
- Page 78 and 79:
Compressor Work/Electrical heating
- Page 80 and 81:
F CONCLUTION R134a is today the mos
- Page 82 and 83:
G REFERENCES (1970) Council Directi
- Page 84 and 85:
2003. http://www.climnet.org/pubs/F
- Page 86 and 87:
- Fresh air streams according to de
- Page 88 and 89:
set to minimum 80 bar. If the ΔT b
- Page 90 and 91:
IHX heat exchange SI h_7 when t_7=t
- Page 92 and 93:
IHX (cold side) In (1) Out (2) SI T
- Page 94 and 95:
Method of iteration process in cool
- Page 96 and 97:
Result cooling Appendix Table 2 Coo
- Page 98 and 99:
Appendix Table 4 Cooling relative h
- Page 100 and 101:
2. iterate in excel sheet to find c
- Page 102 and 103:
Appendix Table 9 Heating relative h
- Page 104 and 105:
Appendix Table 11 Heating relative
- Page 106 and 107:
20 °C. The equation in this also a
- Page 108 and 109:
Appendix D Tables from expander cal
- Page 110:
Appendix E Leakage rates of Railway