Solar steam power generator, Electrical Engineering

This project is about another particular application of a particular embodiment of the patent: A Long Stroke Steam Engine using Solar Generated Steam. The machine elements such as springs, shafts, bearings, chains and belts comprising this embodiment will require design to withstand fatigue failure due to cyclic loading as the reciprocator operates at relatively high speed.

You Are Required To Perform Design Calculations As Outlined Below

Data setting out the design requirements for the  Long Stroke  Steam Engine  are provided in the Excel file entitled Project_LS_OilWell_Pump.

The bending effects of these high inertial forces on the stub shafts may be minimized by positioning compression springs at the end regions of the carriage movement. These springs may be designed to assist in the deceleration of the carriage while the special chain link travels around the sprocket.

It is expected that the engine will be required to operate at frequencies up to 50 cycles per minute and that this will cause high inertial forces bearing on the two stub shafts protruding from the special chain link which hauls the carriage. The sudden pressure increase as valves close during the pumping action will cause fluctuating loads on all components of the system including both pressure induced stress and tensile stress on the down-hole pump elements.

Stage 1 - Refer to the AREVA file about the AREVA Solar Thermal Power Plant:

Assume that the system that you design is to produce 100 kW-hrs of electrical energy per day at a location having clear sunny days such as many Australian farming places.

Taking into account that the proposed steam engine net efficiency will be as low as about 5% whilst the generator efficiency is likely to be no more than 85% estimate the area of solar mirrors required. Be generous!

Based on the above power rate and making a reasonable estimate of friction loss determine the power requirement for the machine. Also determine the peak  piston  force and the average  piston  force during the cycles. Note that the pumping action will cause fluctuating load on the chain.

Size the electrical generator required and a key coupling to the sprocket shaft. For this purpose size that the sprocket shaft diameter.

Stage 2 - Design of cantilever shaft and selection of deep groove ball or tapered roller bearings:

Design the cantilever shaft (and select suitable bearings to carry this shaft) for the drive sprocket. Select silent chain for  this machine. Details of the arrangement for this shaft are given in the Excel spreadsheet 5. Assume that the generator requires speed reduction by means of a toothed belt pulley system to be driven by this shaft. The belt tension will place a load on the end of the shaft. Assume a belt tension when designing the shaft.

Stage 3 - Design and give full specifications for a compression spring arrangement at each end of the carriage motion to assist in its deceleration and re-acceleration:

Design suitable springs to minimize the inertial loads on the stub shafts of the special hauling link. The springs are to buffer against the carriage as it approaches each end of its travel with a suitable buffering component.

Stage 4:

Check out the suitability of your selected chain for this application and size the stub shafts on the special hauling link. Details of this link are included in the Excel spreadsheet 4 and in the patent document.

Stage 5:

Design the pulley drive having a suitable reduction ratio from the generator to the drive shaft.  Assume that the generator rotational speed is 1500 rpm.  Submit a report discussing each aspect, all assumptions and include all references.

Posted Date: 2/21/2013 12:41:01 AM | Location : United States







Related Discussions:- Solar steam power generator, Assignment Help, Ask Question on Solar steam power generator, Get Answer, Expert's Help, Solar steam power generator Discussions

Write discussion on Solar steam power generator
Your posts are moderated
Related Questions
Use PSpice to solve for the amplitude and phase of the current and the voltage across the inductor in the circuit shown in Figure(a).

The problem with a battery charger (say, for portable devices) is that it continues to draw power even after the battery is fully charged thereby wasting electricity. In addition,

Static Electricity : This is produced when two substances are rubbed together; the substances may be solids, liquids, or gases. Typical sources of static electricity are: i) dr


Torque-Speed Characteristics of 3-Phase Induction Motors Because the torque-slip characteristic is one of themost important aspects of the inductionmotor, we will now develop a

A 25KVA, 3 phase, wye-connected, 400v synchronous generator has a synchronous impedance of 0.05 +j1.6 ohms per phase. Determine the full load voltage regulation at (a) 0.8 power

Q. A transformer is rated 10 kVA, 220:110 V (rms). Consider it an ideal transformer. (a) Compute the turns ratio and the winding current ratings. (b) If a 2-load resistance



Q. The coil is placed so that its axis of revolution is perpendicular to a uniform field, as shown in Figure If the flux per pole is 0.02 Wb, and the coil, consisting of 2 turns, i