You need JavaScript to view this

Improvement of CHP plant by the use of turbo-compressors. A demonstration at Courtaulds plc, Grimsby (GB)

Abstract

Total energy savings worth 163,000 pounds have been achieved by the installation of two turbo-compressors and modification to the factory steam system at Courtaulds plc in Grimsby in the United Kingdom. In order to improve Courtelle fibre quality and enhance its value Courtaulds needed to update their dryers. They had a high demand for steam and electricity, and their novel solution to the problem both avoided increased power costs and generated additional power. Two turbo-compressors were installed to supply the factory`s requirement for steam at 200 psig by the recompression of 133 psig exhaust steam from the main Combined Heat and Power (CHP) plant steam turbines. The conventional means of supplying this demand by direct let-down would have resulted in steam by-passing the main turbines with an associated reduction in power generation of almost 3 MWe. In contrast, the turbo-compressor installation permits a reduction of the main turbine back-pressure, resulting in a substantial increase in power generation. Both machines now supply the factory`s entire requirement for steam at 200 psig for fibre drying. Using increased steam pressure on the dryers has resulted in improved product quality, achieving all expectations, and the availability of a consistent supply of steam at no  More>>
Publication Date:
Jan 01, 1991
Product Type:
Miscellaneous
Report Number:
GB-404; NP-24
Reference Number:
SCA: 320304; PA: GB-91:052671; SN: 92000649673
Resource Relation:
Other Information: DN: New Practice report produced under the Best Practice programme for the Energy Technology Support Unit, Harwell (GB).; PBD: Jan 1991
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; COMPRESSORS; DUAL-PURPOSE POWER PLANTS; ENERGY EFFICIENCY; TEXTILE INDUSTRY; COGENERATION; STEAM; ON-SITE POWER GENERATION; DRYERS; DEMONSTRATION PLANTS; STEAM TURBINES; ECONOMICS; 320304; WASTE HEAT RECOVERY AND UTILIZATION
OSTI ID:
10115063
Research Organizations:
Department of Energy, London (United Kingdom). Energy Efficiency Office; Thermal Developments Ltd., Sedgefield (United Kingdom)
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Other: ON: DE92761617; TRN: GB9152671
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
GB
Size:
46 p.
Announcement Date:
Jun 30, 2005

Citation Formats

None. Improvement of CHP plant by the use of turbo-compressors. A demonstration at Courtaulds plc, Grimsby (GB). United Kingdom: N. p., 1991. Web.
None. Improvement of CHP plant by the use of turbo-compressors. A demonstration at Courtaulds plc, Grimsby (GB). United Kingdom.
None. 1991. "Improvement of CHP plant by the use of turbo-compressors. A demonstration at Courtaulds plc, Grimsby (GB)." United Kingdom.
@misc{etde_10115063,
title = {Improvement of CHP plant by the use of turbo-compressors. A demonstration at Courtaulds plc, Grimsby (GB)}
author = {None}
abstractNote = {Total energy savings worth 163,000 pounds have been achieved by the installation of two turbo-compressors and modification to the factory steam system at Courtaulds plc in Grimsby in the United Kingdom. In order to improve Courtelle fibre quality and enhance its value Courtaulds needed to update their dryers. They had a high demand for steam and electricity, and their novel solution to the problem both avoided increased power costs and generated additional power. Two turbo-compressors were installed to supply the factory`s requirement for steam at 200 psig by the recompression of 133 psig exhaust steam from the main Combined Heat and Power (CHP) plant steam turbines. The conventional means of supplying this demand by direct let-down would have resulted in steam by-passing the main turbines with an associated reduction in power generation of almost 3 MWe. In contrast, the turbo-compressor installation permits a reduction of the main turbine back-pressure, resulting in a substantial increase in power generation. Both machines now supply the factory`s entire requirement for steam at 200 psig for fibre drying. Using increased steam pressure on the dryers has resulted in improved product quality, achieving all expectations, and the availability of a consistent supply of steam at no less than 195 psig is now regarded by Production as indispensible. Because the dryers no longer require steam at the original turbine exhaust pressure, this back-pressure has been gradually reduced from 155 psig finally achieving 133 psig, 2 psi better than the original target. This results in a 550 kW increase in on-site electricity generation. The installation cost 775,000 pounds and with energy cost savings alone of 163,000 pounds gives a payback period of 4.75 years. An estimated 200,000 pounds/year saving from improved product quality would reduce this payback to 2.1 years. (author).}
place = {United Kingdom}
year = {1991}
month = {Jan}
}