Polymers as advanced materials for desiccant applications
This research is concerned with solid materials used as desiccants for desiccant cooling systems (DCSs) that process water vapor in an atmosphere to produce cooling. Background information includes an introduction to DCSs and the role of the desiccant as a system component. The water vapor sorption performance criteria used for screening the modified polymers prepared include the water sorption capacity from 5% to 80% relative humidity (R.H.), isotherm shape, and rate of adsorption and desorption. Measurements are presented for the sorption performance of modified polymeric advanced desiccant materials with the quartz crystal microbalance. Isotherms of polystyrene sulfonic acid (PSSA) taken over a 5-month period show that the material has a dramatic loss in capacity and that the isotherm shape is time dependent. The adsorption and desorption kinetics for PSSA and all the ionic salts of it studied are easily fast enough for commercial DCS applications with a wheel rotation speed of 6 min per revolution. Future activities for the project are addressed, and a 5-year summary of the project is included as Appendix A. 34 refs., 20 figs., 3 tabs.
- Research Organization:
- Solar Energy Research Inst. (SERI), Golden, CO (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- AC02-83CH10093
- OSTI ID:
- 5774745
- Report Number(s):
- SERI/TP-213-3608; ON: DE90000389
- Country of Publication:
- United States
- Language:
- English
Similar Records
Polymers as advanced materials for desiccant applications, 1988
Advanced desiccant materials research
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
14 SOLAR ENERGY
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COOLING SYSTEMS
DESICCANTS
MATERIALS TESTING
POLYMERS
ADSORPTION
ADSORPTION ISOTHERMS
AIR CONDITIONING
CAPACITY
CHEMICAL COMPOSITION
DESORPTION
HUMIDITY
KINETICS
MEASURING METHODS
MOLECULAR WEIGHT
PERFORMANCE TESTING
PROGRESS REPORT
RESEARCH PROGRAMS
SALTS
SAMPLE PREPARATION
SOLUBILITY
SORPTION
SORPTIVE PROPERTIES
SULFONIC ACIDS
TIME DEPENDENCE
WATER VAPOR
DOCUMENT TYPES
ENERGY SYSTEMS
FLUIDS
GASES
ISOTHERMS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
SURFACE PROPERTIES
TESTING
VAPORS
ADVANCED MATERIALS
DESICCANT COOLING SYSTEMS
IONIC SALTS
400201* - Chemical & Physicochemical Properties
140901 - Solar Thermal Utilization- Space Heating & Cooling
320106 - Energy Conservation
Consumption
& Utilization- Building Equipment- (1987-)