UPTU Old Question Papers
B Tech 8th Semester
Non Conventional Energy Resources and Utilisation 2007
Note : Attempt all questions.
1. Attempt any two of the following :
(a) Discuss about Indian and global energy resources. Also describe the future of non-conventional energy resources in India.
(b) Briefly discuss about the energy demand in India. Write a short note of energy stored in biomass.
(c) Write short notes on the following :
2. Answer any two of the following :
(a) What are the main criteria of selecting site of wind mill ? What is magnus effect ?
(b) Write the working principle of Darriens machine. Discuss briefly, about aerobic bio-conversion process.
(c) Show that the maximum thermal efficiency of a thermionic generator is approximately given by :T –T n – c Imax Tc P + 2 (?Vc (zVa Where, Pe = P„ = P :, the symbols having their usual names.
3. Answer any four of the following :
(a) Briefly discuss the working principle of Solar – Thermal Central Receiver Systems.
(b) Write a short note on Terrestrial Solar Radiation.
(c) Briefly discuss solar pond. What do you mean by solar cell ?
(d) Write a short note on satellite solar – power system.
(e) Briefly discuss about electrochemical storage and pumped hydro storage system.
(f) Determine the following :
(i) Solar azimuthal angle
(ii) Zenithal angle
(iii) Latitude angle
(iv) Declination angle
(v) Hour angle.
4. Answer any two of the following :
(a) Briefly discuss thermionic emissions. What do you mean by theoretical and actual efficiency of thermionic systems ?
(b) What do you mean by reversible cell ? Discuss about different fuel cells. How do you calculate efficiency of cells ?
(c) Write the work function of a metal. Describe constructional details of a basic thermionic generator.
5. Answer any four of the following :
(a) What are the properties of thermoelectric materials ?
(b) What is the working principle of thermoelective plant generators ?
(c) Briefly discuss hot springs and steam ejectors.
(d) What are the essential criteria of selecting site for Geothermal power plant ?
(e) briefly discuss OTEC cycle.
(f) A 2-m wave has a 6s period and occurs at the surface of water 100 m deep. Find the wavelength, the wave velocity, the horizontal and vertical semiaxes for water motion of the surface, and the energy and power densities of the wave. Water density = 1025 kg/m3.