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Feasibility improvement project of a district heat supply system in Dalian, China

Abstract

Investigations and discussions have been given on energy saving possibilities at two medium-sized heat and power supplying plants in the city of Dalian in China. The project will improve the operation methods of the heat and power plants so that the energy cost can be minimized, and attempt to improve the boiler heat efficiency and save the energy by means of heat recovery and utilization. The draft modification plan for energy conservation has planned operation optimization for energy conservation, control of boiler operation under variable pressure, modification of the external boiler heat converter, use of inverters for the large capacity motors for boilers, and recovery of heat from the boiler blow-down water. In the analysis, models were structured from the operation data, and the effects of applying the energy saving measures were derived from simulation. As a result, the energy saving effect was found to be about 13,000 tons at the Chunhai plant and about 7,000 tons at the Pulandian plant annually (converted to oil). The reduction in greenhouse gas emission was found to be about 40,000 tons at the Chunhai plant and about 20,000 tons at the Pulandian plant annually. The number of years for investment payback is about  More>>
Authors:
"NONE"
Publication Date:
Mar 01, 2001
Product Type:
Technical Report
Report Number:
JP-NEDO-020005073
Resource Relation:
Other Information: PBD: Mar 2001
Subject:
20 FOSSIL-FUELED POWER PLANTS; CHINA; DUAL-PURPOSE POWER PLANTS; ENERGY EFFICIENCY; ENERGY CONSERVATION; BOILERS; THERMAL EFFICIENCY; HEAT RECOVERY; SIMULATION; GREENHOUSE GASES; COST BENEFIT ANALYSIS; INVESTMENT
OSTI ID:
20225587
Research Organizations:
New Energy and Industrial Technology Development Organization, Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
TRN: JN0141202
Availability:
Available to ETDE participating countries only(see www.etde.org); commercial reproduction prohibited; OSTI as DE20225587
Submitting Site:
NEDO
Size:
295 pages
Announcement Date:

Citation Formats

Feasibility improvement project of a district heat supply system in Dalian, China. Japan: N. p., 2001. Web.
Feasibility improvement project of a district heat supply system in Dalian, China. Japan.
2001. "Feasibility improvement project of a district heat supply system in Dalian, China." Japan.
@misc{etde_20225587,
title = {Feasibility improvement project of a district heat supply system in Dalian, China}
abstractNote = {Investigations and discussions have been given on energy saving possibilities at two medium-sized heat and power supplying plants in the city of Dalian in China. The project will improve the operation methods of the heat and power plants so that the energy cost can be minimized, and attempt to improve the boiler heat efficiency and save the energy by means of heat recovery and utilization. The draft modification plan for energy conservation has planned operation optimization for energy conservation, control of boiler operation under variable pressure, modification of the external boiler heat converter, use of inverters for the large capacity motors for boilers, and recovery of heat from the boiler blow-down water. In the analysis, models were structured from the operation data, and the effects of applying the energy saving measures were derived from simulation. As a result, the energy saving effect was found to be about 13,000 tons at the Chunhai plant and about 7,000 tons at the Pulandian plant annually (converted to oil). The reduction in greenhouse gas emission was found to be about 40,000 tons at the Chunhai plant and about 20,000 tons at the Pulandian plant annually. The number of years for investment payback is about 4.1 years at the Chunhai plant, and about 4.9 years at the Pulandian plant, wherein good profitability can be estimated. (NEDO)}
place = {Japan}
year = {2001}
month = {Mar}
}