We present an analysis of an indoor swimming-pool with solar collector panels. An analytical expression is derived for the system efficiency in terms of heat-exchanger and collector designs and climatic parameters.

We have studied an active solar distillation system during peak summer days. The system is made of fibre-reinforced plastic (FRP) and is coupled to a flat-plate collector (FPC). Performance of single and double-effect solar distillation, with and without water-flow over the glass cover, was...

We show how the thermal losses within and outside a solar distillation unit vary with water depth in the basin of a passive solar still. The latent heat of vaporisation has been used for distillation under both passive and active modes of operation. The flow rate of the water mass over the glass...

We present an analytical model of a ground collector which uses thermal trap material instead of glazing on its top. The effects of different parameters e.g., the depth of the heat retrieval plane, thickness of the thermal trap material and the use of various materials such as concrete, sand and...

The design criteria for thermal heating of an active, fixed-dome type biogas plant are presented. The effects of the heat exchanger and collector panel have been incorporated in the thermal analysis. The thermal efficiency of the system can be optimised by increasing the flow rate of the working...

Open sun drying (OSD) is the most common method of crop drying in developing countries. Despite several disadvantages, it is widely practiced because it is a simple way of drying. Crop temperature, temperature around the crop, solair temperature, and rate of moisture evaporation are the...

We analyse the performance of a flat-plate collector with a constant rate of evaporation of flowing water between a glass cover and an absorbing plate. The effects of fluid-flow velocity, depth of fluid and length of the absorbing surface are discussed. We have allowed for periodic variation of...

We apply an analytical expression to the plants and enclosed air in a greenhouse for various design parameters and a given climatic condition. A numerical method has been used to validate an analytical expression for the plant temperature. Our analysis is based on energy-balance equations for...

We have analysed the performance of a greenhouse suitable for use in the summer season when the temperature inside the greenhouse may have to be reduced for optimum plant growth. Cooling was achieved by integrating the earth via an air tunnel with the greenhouse in a forced-circulation mode....

The use of solar energy for growing cucumbers in pots and the ground has been studied under controlled environments in a solar greenhouse. Forced and evaporative cooling were employed. An average of 7 cucumbers per pot (1342.4 g) was produced. Linear and multiple regression analyses were used to...