DESIGN OF A SOLAR WATER HEATER: CASE STUDY BAMBURI CEMENT LIMITED (NGP) FOR 80 WORKERS.

ABSTRACT

This report entails the design of a problem specific solar water heater for Bamburi Cement limited. The exercise in involved the study of existing solar water heaters in the market, and capitalized on their advantages and disadvantages to come up with a more efficient design. In coming up with the problem specific design, the weather patterns of the area had to be studied as well. This gave the solar radiation supply of the area as well as the optimum angle of tilt for the panels in the specified location.

The design process involved conduction of an energy balance between the energy demand and energy supply by the sun which yielded the required total area of solar collectors for effective heating. This area was divided by the standard area of one collector to get the number of collectors to be installed. The energy demand was achieved by approximating the hot water demand for 80 casual workers in the plant and applying a factor of safety of 1.5 according to the Energy Regulation Commission.

After the design was done, a cost analysis was done and comparisons made with what is offered by the local companies. The report also discussed the advantages of the design achieved over what is currently in supply within the country. Other factors discussed include the maintenance processes and recommendations for the continuation of the project.