Analysis of a counter flow indirect evaporative cooling and liquid desiccant dehumidification system
Thesis/Dissertation
·
OSTI ID:6925229
A solar fired liquid desiccant cooling and dehumidification system is proposed, analyzed, and simulated on a digital computer. The entire study comprised of three distinct but related stages. The first phase of the study dealt with modeling a modified version of a roof pool that works as an indirect evaporative cooler. A one-dimensional analysis performed on the adiabatic counterflow plate heat exchanger indicated that the proposed cooler affords satisfactory performance. The next phase of the study of the study was extensive and dealt with analyzing and modeling the behavior of an air dehumidification unit, the packed tower absorber. All the tower outlet conditions can be predicted via the effectiveness approach, making the modeling very appealing for transient simulation. The final phase of the work centered around modeling the remaining components of the proposed liquid desiccant system: open-flow regenerator, sensible heat exchanger and liquid desiccant storage tank; calculating the space cooling load; and, finally, integrating all the subsystem models via an executive routine into an overall transient systems model. A detailed analysis revealed that a liquid desiccant system would be useful in high ventilation areas and where instead of the ARI room conditions, one is satisfied with relatively higher room temperatures (say 80/sup 0/F) which are nearly offset by relatively lower room humidities (say in the 50's).
- Research Organization:
- Texas A and M Univ., College Station (USA)
- OSTI ID:
- 6925229
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140901 -- Solar Thermal Utilization-- Space Heating & Cooling
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
COMPUTERIZED SIMULATION
COOLING
DEHUMIDIFIERS
DESICCANTS
ENERGY SYSTEMS
EQUIPMENT
EVAPORATIVE COOLING
FLUIDS
HEATING SYSTEMS
LIQUIDS
PASSIVE SOLAR COOLING SYSTEMS
PASSIVE SOLAR HEATING SYSTEMS
PERFORMANCE
PONDS
ROOF PONDS
SIMULATION
SOLAR COLLECTORS
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
SOLAR HEATING SYSTEMS
SOLAR PONDS
SPACE HVAC SYSTEMS
SURFACE WATERS
140901 -- Solar Thermal Utilization-- Space Heating & Cooling
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
COMPUTERIZED SIMULATION
COOLING
DEHUMIDIFIERS
DESICCANTS
ENERGY SYSTEMS
EQUIPMENT
EVAPORATIVE COOLING
FLUIDS
HEATING SYSTEMS
LIQUIDS
PASSIVE SOLAR COOLING SYSTEMS
PASSIVE SOLAR HEATING SYSTEMS
PERFORMANCE
PONDS
ROOF PONDS
SIMULATION
SOLAR COLLECTORS
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
SOLAR HEATING SYSTEMS
SOLAR PONDS
SPACE HVAC SYSTEMS
SURFACE WATERS