Now showing items 31-40 of 43
Renewable energy education for technicians/mechanics
Some of the issues relating to renewable energy education are highlighted. Outlines of proposed course curricula for certificate and Diploma level courses are briefly presented and discussed.
Performance and cost analysis of two-pass solar air heaters
In this study the ratio of the annual cost and the annual energy gain has been calculated for two-pass solar air heaters with single and double covers above the absorber. The cost-benefit ratios of the collectors are ...
Energy conservationeIN a cinema hall under hot and dry condition
(Elsevier Science, 1996)
In this communication, energy conservation in a cinema hall due to evaporative cooling, wind tower and earth air tunnel has been evaluated. The effects of occupancy, infiltration and ighting have been taken into account. ...
Solar thermal systems with transparent insulation
In this paper, theoretical models are formulated to predict the thermal behaviour of various solar systems, viz. shallow solar pond water heater, built-in-storage type solar water heater, isolated non-airconditioned room ...
Optimization of solar air heaters of different designs
The optimum flow channel depth and mass flow rate in 10 different designs of solar air heaters have been obtained. The design variations considered are flat absorber type with and without cover glazings; single, double and ...
Analytical Study of Collector Solar -Gain Enhancement by Multiple Reflectors
We have considered the general case of a collector with four reflectors. An analytical model is developed for study of the effect of an individual reflector on the collector. Reflectors R-l, R-2, R-3, and R-4 face south, ...
Economic Design of a Rock Bed Storage Device for Storing Solar Thermal Energy
This study deals with the optimization of design and operational parameters of a rock bed thermal energy storage device coupled to a two pass single cover solar air heater, i.e., charging time $ rock bed size (flow length, ...
Comparative performance of coriander dryer coupled to solar air heater and solar air heater-cum-rockbed storage
In the present communication, efforts have been made to study the drying characteristics of coriander in a stationary 0.5 tonne/batch apacity deep-bed dryer coupled to a solar air heater and a rockbed storage unit to ...
Some Aspects of a PV/T Collector/Forced Circulation Flat Plate Solar Water Heater With Solar Cells
Solar energy is mainly utilized via two routes---thermal and electrical. Two forms of energy are generated by two separate systems. The present work is about the study of a system which combines thermal and photovoltaic ...
System performance studies on a photovoltaicithermal (PV/T) air heating collector
A computer simulation model is presented for the analysis of a solar photovolta.ic/thermal (PVIT) hybrid collector with air as heat transfer fluid and algorithm for making quantitative prediction regarding the performance ...