Thesis
Compressor assisted air-cooled single effect absorption chiller
Washington State University
Master of Science (MS), Washington State University
2014
Handle:
https://hdl.handle.net/2376/101683
Abstract
Two-thirds of all homes in the United States have air conditioners and they use about 5% of all the electricity produced. Roughly 100 million tons of carbon dioxide is released into the air each year. In order to overcome these energy and environment related issues caused by conventional cooling equipment, absorption chillers are a promising solution. The purpose of this thesis is to use EES to map out the design challenges of using a single effect lithium bromide-water air-cooled absorption chiller in a trigeneration system, through waste heat or driving it by an individual heat source such as natural gas or solar energy. An absorption chiller with a cooling capacity of 10 kW for residential applications is simulated using the non linear solver EES. The main challenge considered in this research is when it is hot and humid outside and the cooler can't reject enough heat. For this a compressor assisted single effect absorption chiller is modeled in EES. It uses a compressor which is located between the generator and the condenser. The desorber inlet temperature can be reduced up to 77 °C with the addition of a compressor. The second phase of the study involves doing the LCA (Life-cycle assessment) of the chiller, to evaluate the environmental impacts associated with it using natural gas and solar energy as the heat source. A solar assisted absorption chiller is better for the environment than the natural gas assisted with an 82.3% reduction in global warming impact if the manufacturing phase of the solar collector is neglected.
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Details
- Title
- Compressor assisted air-cooled single effect absorption chiller
- Creators
- Annie Chawla
- Contributors
- Cecilia D. Richards (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Mechanical and Materials Engineering, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900525379601842
- Language
- English
- Resource Type
- Thesis