A transient analysis has been carried out on a hybrid solar water heater which comprises a rock bed air heater with optimum design parameters in conjunction with an air-to-water transverse fin shell-and-tube heat exchanger (mixed air and unmixed water type) in which cold water from the storage...

This is the first part of a set of two papers, about the estimation of solar irradiance on the absorber plate and cover of a semi-cylindrical solar tunnel dryer (STD). The second part discusses the modelling and thermal performance results of the STD. A detailed analysis has been carried out in...

The temperature dependence of the overall heat-loss coefficient for flat-plate collectors has been studied by using stagnation measurements made with different configurations, viz., tilt 45 °s with single and double glazing and tilt 0 ° with single glazing. Comparisons have been made with...

Low-efficiency, rice-husk-based furnace-boiler systems are generally used for meeting thermal energy demand of paddy parboiling in India. Shortages in rice-husk availability are met with fuels such as coal, furnace oil, etc. Besides steam at low pressures, paddy parboiling operations require hot...