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Solar feed water heating feasibility for a conventional steam power plant
Ahsan Alam,Mubashir Ali Siddiqui,Naveed ur Rehman 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.7
Technical and economic feasibility of heating feed water through parabolic trough solar collectors has been discussed in this paper. This integration of solar energy with steam plants saves extraction steam, thus increasing turbine output. The study is based on a 210 MW Heavy fuel oil (HFO) fired power plant for Karachi weather conditions. Pressurized hot water storage system is used as heat storage medium. TRNSYS software is used to find out useful energy collected through parabolic trough collectors and heat storage in pressurized hot water storage system. Life cycle savings (LCS) using HFO prices of two different periods i.e. May, 2014 (higher HFO price) and Feb., 2016 (lower HFO price) are calculated and compared. Effect of change in HFO price on LCS is also presented. Integration of higher pressure FWH with solar energy is found more feasible in terms of LCS as compared to lower pressure FWH. Same methodology can be deployed on other plants around the globe to determine LCS and economic feasibility.
Abstract to publication conversion in pediatric critical care medicine in Pakistan
Anwarul Haque,Mohammad Shahzad,Humaira Jurair,Naveed Ur Rehman Siddiqui,Sidra Ishaque,Qalab Abbas 대한중환자의학회 2021 Acute and Critical Care Vol.36 No.1
Background: To determine the rate of conversion of abstracts presented at conferences intofull-text articles published in peer-reviewed journals in the field of pediatric critical care medicine(PCCM) in a developing country. Methods: We retrospectively reviewed PCCM abstracts from Pakistan presented at nationaland international pediatric and critical care conferences over 10 years (January 2010 to March2020). Data included abstract characteristics, such as presentation (poster/oral), presenter(fellow/resident), time of meeting (month and year), type of meeting, study design and topic;and publication characteristics, such as journal name, time (month and year) and first author. The primary outcome was publication rate of PCCM abstracts presented in meetings and time(months) from presentation to publication. Results: A total of 79 PCCM abstracts were presented in 20 meetings during the study period. There were 65 poster presentations (82.28%), of which 63 (79.74%) were presented at internationalcritical care conferences and all presenters were PCCM fellows. In total, 64 (81%)abstracts were descriptive observational studies (retrospective: 50, 63.29%) and prospective(14, 17.72%). Only one was an interventional randomized controlled trial. The publication rateof PCCM abstracts was 63.3% (50/79) and the mean time to publication was 12.39±13.61 months. The publication rate was significantly correlated to the year of publication (P<0.001). Conclusions: The PCCM abstract publication rate and mean time from presentation t