03437nam a2200409 4500 20260818095848.0 300998s1994 th r 0000|0 eng d .b10243495 AIT Thesis no. ET-94-19 Fang, Hui Energy management opportunities in a cogeneration plant for district heating Bangkok : Asian Institute of Technology, 1994 102 leaves +1 online resource Thesis ; no. ET-94-19 A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1994 This study is aimed to find energy conservation opportunities in a typical combined heat and power district heating(CHP/DH) plant in P.R. China. Environmental benefit of the plant in the form of reduced emission has also been analyzed. There is a strong fluctuation of steam demand on the CHP/DH plant. In summer, the plant has to operate at low loads because of reduced steam demand. Energy analysis of the boilers and turbo-generators shows that their efficiencies vary with the changes of load levels. A simulation and optimization program is developed to optimize the operation so that the loads dispatched to each boiler and turbo-generator are rationalized to minimize energy consumption while satisfying the steam demand and power constraint. The analysis shows that optimizing operation as above can lead to an energy saving of 4.2%. The CHP/DH plant has no provision for condensate recovery at present. It is estimated that recovery of condensate would be a feasible option of energy conservation with a pay back period of 2.91 years. Feasibility of using absorption chillers for space cooling as a mean of improving steam demand in summer has been studied. It is found that use of double effect absorption chillers by the users would be feasible with a pay back period of 2.4 years. Emission analysis shows that a CHP/DH plant significantly reduces emission of TSP(Total suspended particulates), CO₂ and SO₂ compared to separate small boilers used for space heating. TSP emission by the CHP/DH plant is only 10% of that of the small boilers. Cogeneration of electric power and heat Bhattacharya, Sribas C., Chairperson Surapong Chiraratananon, Examination Committee Chen, X., Examination Committee The Government of France, Scholarship Donor Asian Institute of Technology. Thesis ; no. ET-94-19 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B16944 .b10243495 mnait x 240401 1 951211 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050003107496 CREATED : 1994-07-14 RECORD # : i11704330 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 1 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050004779145 CREATED : 1994-07-14 RECORD # : i11704342 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 4 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050120367148 CREATED : 2016-06-13 RECORD # : i13033360 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 37530 37530 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. ET-94-19 30050003107496 2026-08-18 09:58:48 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. ET-94-19 30050004779145 2026-08-18 09:58:48 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. ET-94-19 30050120367148 2026-08-18 09:58:48 2026-08-18 40