Transparent insulation materials: An overview on past, present and future developments

Determination of efficiency of solar absorption of honeycomb structure attached to collecting base surface on which incoming solar energy impinges directly on base surface

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Efficiencies of honeycomb absorbers of solar radiation

This paper is a report on the various heat collection and heat storage systems evolved at BITS The paper reports the performance of flatplate collectors heating a low boiling organic liquid as an adjunct to BITS Solar Pump Also given in the paper is an economic alternative to a conventional solar water heater Further, methods for space heating and cooling are discussed Possibility of combining a collector and concentrator to achieve higher temperatures and to be able to raise-steam is also investigated

A report on the various heat collection and heat storage systems evolved under the solar energy programme at b. i. t. s.

Honeycomb type flat plate collectors have been demonstrated to be capable of achieving high temperatures. They operate through the mechanisms of suppressing convection currents and reducing the losses to a negligible level. This paper reports the use of drinking straw honeycomb of L/D ratio of 12 which achieved temperatures in excess of 230°C, when the honeycomb was thermally destroyed. Wet steam of up to 50 psi pressure has been generated on a 0.6 m × 0.6 m aluminum tube in sheet collector.

P. Pellette

Papers

Honeycomb thermal trap