This paper shows an analysis of the applicability of an adsorption system for electric vehicle (EV) air conditioning. Adsorption systems are designed and optimized to provide the required cooling for four combinations of vehicle characteristics and driving cycles. The resulting adsorption systems are compared with vapor compression air conditioners that can satisfy the cooling load. The objective function is the overall system weight, which includes the cooling system weight and the weight of the battery necessary to provide energy for air conditioner operation. The system with the minimum overall weight is considered to be the best. The results show the optimum values of all the variables, as well as temperatures and amounts adsorbed, for the adsorption and desorption processes. The results indicate that, for the conditions analyzed in this paper, vapor compression air conditioners are superior to adsorption systems, not only because they are lighter, but also because they have a higher COP and are more compact.

1.
Aceves, S. M., and Comfort, W. J., 1993, “Evaluation of Alternative Systems for Electric Vehicle Cooling,” Lawrence Livermore National Laboratory Report UCRL-AR-114816.
2.
Aittomaki
A.
, and
Harkonen
M.
,
1988
b, “
Modeling of Zeolite/Methanol Adsorption Heat Pump Process
,”
Heat Recovery Systems and CHP
, Vol.
8
, pp.
475
482
.
3.
ASME Boiler and Pressure Vessel Code, 1983, Section VIII, Pressure Vessels, Division 1, New York, NY.
4.
Atkinson, K. E., 1978, An Introduction to Numerical Analysis, John Wiley and Sons, New York.
5.
Critoph
R. E.
,
1988
, “
Performance Limitations of Adsorption Cycles for Solar Cooling
,”
Solar Energy
, Vol.
41
, pp.
21
31
.
6.
Guilleminot
J. J.
,
Meunier
F.
, and
Pakleza
J.
,
1987
, “
Heat and Mass Transfer in a Non-Isothermal Fixed Bed Solid Adsorbent Reactor: A Uniform Pressure-Non-Uniform Temperature Case
,”
International Journal of Heat and Mass Transfer
, Vol.
30
, pp.
1595
1606
.
7.
Guilleminot
J. J.
,
Choisir
A.
,
Chalfen
J. B.
,
Nicolas
S.
, and
Reymoney
J. L.
,
1993
, “
Heat Transfer Intensification in Fixed Bed Adsorbers
,”
Heat Recovery Systems and CHP
, Vol.
13
, pp.
297
300
.
8.
Hardin, J., 1992, “Battery Testing,” Proceedings of the Automotive Technology Development Contractors Coordination Meeting, Dearborn, MI.
9.
Ikeda, S., Yoshii, Y., and Tamura, Y., 1990, “Air Conditioning Electric Vehicles with an Electronically Driven Variable Speed Scroll Type Compressor,” SAE Technical Paper Series No. 901738.
10.
Karagiorgas
M.
, and
Meunier
F.
,
1987
, “
The Dynamics of a Solid Adsorption Heat Pump Connected with Outside Heat Sources of Finite Capacity
,”
Heat Recovery Systems and CHP
, Vol.
7
, pp.
285
299
.
11.
Kays, W. M., and London, A. L., 1984, Compact Heat Exchangers, McGraw-Hill, New York, NY.
12.
Mei, V. C., Chen, F. C., Lavan, Z., Collier, R. K., and Meckler, G., 1992, “An Assessment of Desiccant Cooling and Dehumidification Technology,” Oak Ridge National Laboratory Report ORNL/CON 309, DE93-002622.
13.
Miles
D. J.
, and
Shelton
S. V.
,
1991
, “
Coupled Heat Transfer and Thermodynamic Adsorption Heat Pump Analysis
,”
ASME
AES-Vol.
26
, pp.
33
38
.
14.
Shelton
S. V.
,
Wepfer
W. J.
,
Miles
D. J.
,
1990
, “
Ramp Wave Analysis of the Solid/Vapor Heat Pump
,”
ASME JOURNAL OF ENERGY RESOURCES TECHNOLOGY
, Vol.
112
, pp.
69
78
.
15.
Suzuki, M., 1990, “Adsorption Engineering,” Kodansha LTD, Tokyo, Japan.
16.
Tchernev
D. I.
, and
Emerson
D. T.
,
1988
, “
High Efficiency Regenerative Zeolite Heat Pump
,”
ASHRAE Transactions
, Vol.
94
Part 2, pp.
2024
2032
.
17.
Theodore Barry & Associates, 1992, “Neighborhood Electric Vehicle Concept Feasibility Study,” Report to Southern California Edison, South Coast Air Quality Management District, and Caltrans.
18.
Tsotsas
E.
, and
Martin
H.
,
1987
, “
Thermal Conductivity of Packed Beds: A Review
,”
Chemical Engineering Process
, Vol.
22
, pp.
19
37
.
19.
Valenzuela, D. P., and Myers, A. L., 1989, Adsorption Equilibrium Data Handbook, Prentice Hall, Englewood Cliffs, NJ.
20.
Wyczalek, F. A., 1991, “Electric Vehicle Technology in the 1990s,” Proceedings of the 26th Intersociety Energy Conversion Engineering Conference, Boston, MA, Vol. 4, pp. 317–322.
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