the growth of the electrical energy consumption form one side and the bounded available fossil fuel and other limitations from the other side, makes the thermal power plants upgrading as a main demand in the world. decreasing the internal energy consumption, increasing the performance and the output power with the minimum costs are the important targets of the power plants retrofitting. nowaday...

the aim of this study is to find the optimal water pressure and percentage of supply vapour in the feed water heaters (fwhs) of steam power plants, such that they maximize the thermal efficiency of the rankine cycle within pre-specified values of minimum and maximum pressures of the thermodynamic cycle. thermal efficiency is defined as a function of unknown variables (fluid pressure and vapour ...

1. Introductory Remarks 2. Evaporation Processes 3. Multi-stage Flash Desalination Process 4. Seawater Supply System 5. Seawater Recirculation System 6. Feed Water System 7. Brine Blowdown System 8. Vacuum Raising and Maintaining System 9. Brine Recirculation System 10. Anti-scale Dosing System 11. Condensate Flow from Brine Heater System 12. Distillate System 13. Plant Loading Glossary Bibliog...

Present preliminary scientific trial was designed to investigate of microwave effects on Japanese quails as an animal model. Thirty six three days-old quail chicks were randomly divided into 3 experimental groups and received: A) un-treated tap water, B) tap water boiled by electrical heater and then cooled and C) tap water treated by microwave oven and then cooled. The whole experimental perio...

This paper investigates how to develop a learning-based demand response approach for electric water heater in a smart home that can minimize the energy cost of the water heater while meeting the comfort requirements of energy consumers. First, a learning-based, data-driven model of an electric water heater is developed by using a nonlinear autoregressive network with external input (NARX) using...

A dynamic model of the resistance heater in a thermal flying height control (TFC) slider of a hard disk drive is identified and used for dynamic flying height control. Experimental data obtained on a spin stand and the generalized realization algorithm are used for identification of a discrete-time dynamic model of the resistance heater (thermal actuator). The flying height change is measured u...

This summer I had my first experience with something every homeowner dreads (and knows is coming eventually): a sudden puddle of water underneath the hot water heater. A local plumbing company quickly sent a technician out, who spared no time in pronouncing our current hot water heater dead. Then he explained that this company used flat-rate pricing: all jobs of a certain type cost the same fix...