Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Fumo, Nelson

Committee Member

Mago, Pedro

Committee Member

Luck, Rogelio

Date of Degree

8-6-2011

Document Type

Graduate Thesis - Open Access

Major

Mechanical Engineering

Degree Name

Master of Science

College

James Worth Bagley College of Engineering

Department

Department of Mechanical Engineering

Abstract

ASHRAE Standard 139 provides parameters which are used in the desiccant industry to calculate the performance of a desiccant dehumidifier. This performance can be obtained from any manufacturer by means of performance curves or selection software. However, these performance parameters are generally rated at sea-level conditions. Although some manufacturers provide a means for estimating the performance at altitude based on sea-level conditions, there is no set methodology that is accepted by all. The scope of this project involves investigating how the performance parameters are affected by altitude and develop a general methodology that can be applied to any desiccant wheel. Mississippi State University and the National Renewable Energy Laboratory both conducted tests and compared the results. It was found that, by keeping mass flow rate, inlet temperature, and inlet humidity ratio constant between sea-level and altitude, the pressure drop through the wheel was influenced the most by altitude.

URI

https://hdl.handle.net/11668/15487

Comments

altitude||desiccant||dehumidifier||performance

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