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Title: Compressed air dryer saves over $9000/yr in energy costs

Abstract

America Enka's Lowland, TN, plant, located about 40 miles east of Knoxville, TN, uses instrument quality compressed air for various purposes in producing polyester and nylon yarns. An increase in process air demand had resulted in the installation of an additional 600 hp centrifugal compressor in the plant's auxiliary equipment building. The process operating requirements impose a 0/sup 0/F maximum pressure dew point for a 100 psig instrument air system. American Enka's engineers selected a desiccant dryer sized similar to and supplied by the same manufacturer of a dryer that was installed at the plant 13 years ago. The new dryer employs a heat of compression regeneration system which was not available when the older dryer was installed. The new system recovers the heat of compression from the air compressor and uses it to regenerate the new dryer's desiccant. This eliminates the need for the 60 kW heater and the 7 1/2 hp fan motor used in the regeneration of the older dryer's desiccant bed. The heat of compression dryer operates virtually unattended 24 hours a day, 365 days a year. The economics of operating the dryer have been excellent. Compared to the older dryer, the operation of the heatmore » of compression dryer has saved more then $9000/yr (using $0.03/kwh and 2500 scfm of 100 psig air).« less

Authors:
;
Publication Date:
Research Org.:
American Enka, NC
OSTI Identifier:
5570465
Alternate Identifier(s):
OSTI ID: 5570465
Resource Type:
Journal Article
Journal Name:
Chem. Process. (Chicago); (United States)
Additional Journal Information:
Journal Name: Chem. Process. (Chicago); (United States)
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; DRYERS; CHEMICAL PLANTS; COMPRESSED AIR; COST BENEFIT ANALYSIS; ENERGY CONSERVATION; HEAT RECOVERY; HEAT RECOVERY EQUIPMENT; MAINTENANCE; AIR; COMPRESSED GASES; ENERGY RECOVERY; EQUIPMENT; FLUIDS; GASES; INDUSTRIAL PLANTS; RECOVERY 320303* -- Energy Conservation, Consumption, & Utilization-- Industrial & Agricultural Processes-- Equipment & Processes

Citation Formats

Grove, M., and Hodel, A.E. Compressed air dryer saves over $9000/yr in energy costs. United States: N. p., 1985. Web.
Grove, M., & Hodel, A.E. Compressed air dryer saves over $9000/yr in energy costs. United States.
Grove, M., and Hodel, A.E. Fri . "Compressed air dryer saves over $9000/yr in energy costs". United States.
@article{osti_5570465,
title = {Compressed air dryer saves over $9000/yr in energy costs},
author = {Grove, M. and Hodel, A.E.},
abstractNote = {America Enka's Lowland, TN, plant, located about 40 miles east of Knoxville, TN, uses instrument quality compressed air for various purposes in producing polyester and nylon yarns. An increase in process air demand had resulted in the installation of an additional 600 hp centrifugal compressor in the plant's auxiliary equipment building. The process operating requirements impose a 0/sup 0/F maximum pressure dew point for a 100 psig instrument air system. American Enka's engineers selected a desiccant dryer sized similar to and supplied by the same manufacturer of a dryer that was installed at the plant 13 years ago. The new dryer employs a heat of compression regeneration system which was not available when the older dryer was installed. The new system recovers the heat of compression from the air compressor and uses it to regenerate the new dryer's desiccant. This eliminates the need for the 60 kW heater and the 7 1/2 hp fan motor used in the regeneration of the older dryer's desiccant bed. The heat of compression dryer operates virtually unattended 24 hours a day, 365 days a year. The economics of operating the dryer have been excellent. Compared to the older dryer, the operation of the heat of compression dryer has saved more then $9000/yr (using $0.03/kwh and 2500 scfm of 100 psig air).},
doi = {},
journal = {Chem. Process. (Chicago); (United States)},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {2}
}