Effect of modification of spiral pipes on mini boiler to steam temperature and boiler efficiency

Abstract

The purpose of this study is to modify the water pipe in the mini boiler into a spiral pipe, with a pipe length of 196.8 cm. With the aim of increasing the efficiency and temperature produced by mini boilers. In addition, it is also to determine the shape and length of the pipe that is better for use in mini boilers. The results of the test show the temperature rise that passes through the superheater pipe. In the spiral pipe model there is a temperature increase of 10.92 °C, with a steam inlet temperature of 277.62 °C. While the temperature of steam coming out of the superheater pipe is 288.54°C. This shows a temperature increase of 16.6°C, with a superheater pipe steam temperature of 267.4 °C and a steam temperature of 284 °C from the previous pipe model. Testing for heating water, until it becomes steam in the mini boiler is carried out for 90 minutes.The temperature value of the spiral pipe model is better than the previous pipe model. And the efficiency value obtained in the mini boiler using the spiral pipe is 15.055%, while in the previous study only 5.73%.

Comparison Spiral Pipe With Round Pipe for Heat Transfer in Boiler Gas Turbine

“…Based on previous research, the utilization boiler as chamber sawdust can be applied [15]. However, the performance of the boiler system is low.…”