Power Plant Engineering Pk Nag
- Power Plant Engineering: P K NAG: 0009339204042: Amazon.com: Books
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Top review from the United States There was a problem filtering reviews right now. Please try again later. Reviewed in the United States on November 8, 2019 Verified Purchase Good price, quick shipping. Thanks Top reviews from other countries 3. 0 out of 5 stars Good book, but not very helpful for GATE and semester preparation Reviewed in India on September 15, 2018 Verified Purchase This book has a variety of topics explained in very detailed manner, but the language of the book is not very savvy for the understanding of a student studying powerplant engineering for the very first time, if you're not already familiar with the practicality of powerplants, you may find this book a bit hard to follow. The GATE syllabus is very minimal for powerplant engineering so it's not that important from that perspective either, The book by R. K. Rajput on the same subject is a bit student friendly and easier to follow in terms of language so i'd recommend to opt for that book for semester exams. you can still give it a shot for ESE purpose or just for the sake of knowledge.
Power Plant Engineering: P K NAG: 0009339204042: Amazon.com: Books
The paper presents a theoretical analysis of advanced gas-turbine cycles. Specifically, three cycles are investigated, that is the intercooled, the reheat, and the intercooled and reheat cycles. The internal irreversibilities, which... more The paper presents a theoretical analysis of advanced gas-turbine cycles. The internal irreversibilities, which characterise the compression and expansion processes, are taken into account through the polytropic efficiencies of the compressors and turbines. New analytical formulations for the overall and intermediate pressure-ratios which maximise the net work of the three aforemen-tioned cycles are proposed along with an order relation between these optimum pressure-ratios. Moreover, the thermal efficiency of these cycles is also analysed providing, among other findings, the ranges of the intermediate pressure-ratios returning a benefit in the thermal efficiency in comparison with the simple cycle. Finally, for the sole intercooled and reheat cycle, a novel analytical expression for the maximum point of the thermal efficiency is given.
It is also shown that, for the intercooled and reheat cycle, there is a unique value of the overall pressure-ratio which simultaneously maximises the net work and the thermal efficiency. To give some quantitative information, consider a maximum to minimum cycle-temperature ratio equal to 1573/300 and a com-pressor (resp. turbine) polytropic-efficiency equal to 0. 8 (resp. 0. 88). The net work and the thermal efficiency are maximised by a set of overall pressure-ratios obeying an order relation. The simple, the reheat, the intercooled, and the intercooled and reheat cycles reach the maximum network (resp. thermal efficiency) for increasing values of the overall pressure-ratio, that is 8. 550 (resp. 18. 260), 14. 950 (resp. 25. 039), 20. 846 (resp. 39. 984), and 73. 109 (resp. 73. 109). The reheat cycle achieves a 34. 899% (resp. 6. 077%) gain in the net work (resp. thermal efficiency), while the intercooled cycle returns a 31. 477% (resp. 15. 970%) increment. The maximum network of the intercooled and reheat cycle exactly doubles that of the simple cycle.
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Finally, the maximum thermal efficiency of the intercooled and reheat cycle yields a 24. 966% improvement in comparison with the simple one.
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Where can I get solutions for P. K. Nag power plant engineering book of mechanical? - Quora