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Steam Surface Condensers
This volume is a comprehensive presentation of analytical theory and real-world practical solutions. It clearly illustrates updated approaches that plant managers and performance engineers can use in judging condenser performance and in making maintenance decisions. The author examines current methods for modeling, diagnosing and improving condenser performance. He describes how to calculate heat transfer coefficients, provides details of the recent ASME Power Test Code PTC 12.2-1998, and explains the significance of heat transfer coefficients in measuring the overall performance of an operating condenser. Further discussion includes condenser cleaning schedules that save money and reduce CO2 emissions, diagnostic methods that help unit operators pinpoint problem areas, monitoring techniques that help predict the onset of tube fouling and deposit accumulation, and proper methods of tube plugging. New topic areas are also explored: assigning a dollar amount and excess carbon emissions to condenser fouling; methods for estimating cooling water flow rate;and performance analysis for multicompartment condensers.
Review of the vacuum decay test in air-cooled steam condensers
Polemic Paper from the year 2018 in the subject Engineering - System Science, , language: English, abstract: Condensing the capacity of air-cooled condensers is critical for proper functionality of steam cycles in power plants. Condensers operate in the low vacuum regime to promote the efficiency of power generation. Leakages enable ingress of ambient air into the steam cycle and thus impede condensation and power generation capacity. Therefore, vacuum tightness is essential for effective plant operation and must be verified by means of an acceptance test. The latest revision of the VGB acceptance test code for the air-cooled condenser (VGB-S-131) proposes a simple procedure to verify ample vacuum tightness and evacuation capacity. However, the following report will demonstrate that the informational value of test results in connection with the proposed procedure are to some extent questionable. They cannot stand for themselves but need to be accompanied by further information gathered from other tests, as for example thermal performance tests. This puts the usefulness of the test itself into question.
An Introduction to Condensers and Auxiliary Equipment for Steam Power Plants
Introductory technical guidance for mechanical engineers interested in condensers and auxiliary equipment for steam boiler plants.
Troubleshooting Vacuum Systems
Vacuum systems are in wide spread use in the petrochemical plants, petroleum refineries and power generation plants. The existing texts on this subject are theoretical in nature and only deal with how the equipment functions when in good mechanical conditions, from the viewpoint of the equipment vendor. Also, the existing texts fail to consider the interaction of the vacuum system with the process equipment it serves and the variability of the motive steam conditions, change in cooling water temperature condenser fouling and erosion of the ejectors. Here are some of the many questions answered in this groundbreaking volume: Why does my first stage jet make a surging sound during hot weather?...
