The pump employs pentane as the working substance -- an organic fluid with a low boiling point. A flat-plate solar collector generates vapour and its pressure is adequate to pump water from a well. Provision of a separate tank for storing the vapour under pressure improves the performance of the...

A greenhouse of semi-circular shape was employed to study the effect of spectral light response on the stem-cutting propagation of horticultural plants. The number of days taken for the root formation were noted and it was observed that the stem cuttings showed earlier root formation under a...

As one of environmentally friendly refrigeration methods, solid adsorption refrigeration has tracked much interest over the world. Silica gel is popularly used in adsorption refrigeration systems as the adsorbent. Like a compressor in a compression refrigeration system, the adsorbent is vital to...