INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) <p>The first edition of International Journal Engineering and Applied Technology (IJEAT) has been published at the Nusa Putra Univesity, Sukabumi, Indonesia. The first paper was published in March 2018 with a frequency of two issues per year (May and November).</p> Nusa Putra University en-US INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) 2620-9632 Improving Performance of Fly Ash Pump in Coal Boilers <p><em>Fly ash</em>&nbsp;is a&nbsp;<em>system</em>&nbsp;of dry ash handling system burning coal by&nbsp;<em>b</em>&nbsp;<em>oiler</em>&nbsp;before getting to the&nbsp;<em>chimney</em>&nbsp;so as not to pollute the environment (air).&nbsp;Abu will pass the&nbsp;<em>E</em>&nbsp;<em>lecture</em>&nbsp;<em>Static</em>&nbsp;<em>Recipient</em>&nbsp;(&nbsp;ESP&nbsp;) and be temporarily accommodated at&nbsp;<em>hopper</em>&nbsp;.&nbsp;Then the ash will be transferred through&nbsp;the pneumatic AV pump system to&nbsp;<em>fly ash silo</em>&nbsp;.&nbsp;<em>Fly ash transfer</em>&nbsp;system failure&nbsp;occurred due to disruption of the pneumatic control system&nbsp;<em>pump</em>&nbsp;pa&nbsp;da&nbsp;<em>AV</em>&nbsp;system.&nbsp;This is because of the&nbsp;<em>dome valve insert seal</em>&nbsp;on&nbsp;<em>AV pump</em>&nbsp;leak and&nbsp;control&nbsp;system&nbsp;pneumatic fault because of&nbsp;contaminated by&nbsp;<em>fly ash</em>&nbsp;dust&nbsp;<em>.</em>&nbsp;The working intensity of the&nbsp;<em>AV pump</em>&nbsp;system in operation creates friction between the&nbsp;<em>dome valve</em>&nbsp;and&nbsp;<em>dome valve</em>&nbsp;<em>insert seal</em>&nbsp;which can cause erosion and leak&nbsp;on the&nbsp;<em>dome valve insert seal</em>&nbsp;.&nbsp;Frequent leakage at&nbsp;<em>dome valve insert seal</em>&nbsp;<em>,</em>&nbsp;has an impact&nbsp;on the&nbsp;<em>spare part</em>&nbsp;control system&nbsp;pneumatic contaminated by&nbsp;<em>fly ash</em>&nbsp;dust&nbsp;which causes damage to pneumatic spare parts and the cessation of the transfer process of ash to&nbsp;<em>fly ash silos.</em>The research was conducted with the&nbsp;addition of protection to the system&nbsp;pneumatic&nbsp;control&nbsp;<em>AV pump</em>&nbsp;by installing a&nbsp;<em>quick exhaust valve</em>&nbsp;on the system&nbsp;pneumatic&nbsp;<em>AV pump</em>&nbsp;in&nbsp;<em>fly ash</em>&nbsp;system&nbsp;, so that dust does not enter the&nbsp;<em>AV pump's</em>&nbsp;pneumatic control system&nbsp;when a&nbsp;<em>dome valve insert seal</em>&nbsp;leaks&nbsp;<em>.</em></p> Jiao J.J. Deni Nugraha Dede Rustamli Muslimin Muslimin Andi Rinaldi Hasan Copyright (c) 2019 INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) 2022-06-25 2022-06-25 2 1 1 10 10.5281//zenodo.2641430 Conceptual Estimation Program Construction Costs and Material Needs <p>The construction of simple houses is always done, to meet the needs of low and middle-income people. And every time you make a home, it requires a fee to buy materials, equipment and to pay workers. So estimating the cost and material requirements at an early stage is very important. But, there is no simple cost and material estimation method, at the conceptual stage, when there is very little data information, so this is a problem for non-professionals. The solution to the problem is a theory. The theory is a program which consists of models. So this study intends to create a program, as a conceptual estimate. The quantitative method in this study uses 36 data on the Budget Plan. The data is processed using the <em>Burgerlijke Openbare Werken (BOW)</em> method. Then the results of the data process were analyzed using the linear regression analysis method, to get the model. The models then form the formula for the program. So that in this study produce models and applications, to estimate the cost and material requirements for the construction of simple houses. Using the program, enter the building area data information, and automatically, the cost and material requirements for the development of a simple house will be predictable. This program is a simplification of the <em>Burgerlijke Openbare Werken (BOW)</em> method.</p> Paikun Paikun Copyright (c) 2019 INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) 2022-06-25 2022-06-25 2 1 11 26 10.5281//zenodo.2641433 Performance Evaluation of Irrigation Automation for Cultivation System of Rice Intensification (SRI) Combined with Jajarlegowo System: Theories, Methods, and Techniques <p>The objective of this article is to review and represent about automation irrigations that have been gained in irrigation system performance evaluation for cultivation System of Rice Intensification (SRI) combined with Jajarlegowo System. This paper is based on the literature that is concerned with concepts, techniques, and methodologies applied to the automation irrigation and their performance in Indonesia. The development of automation irrigation for paddy field in Indonesia was presented and it was discussed. Several studies of automatic irrigation systems have been conducted in Indonesia. The results showed that the use of irrigation automation system combined with a system of rice intensification (SRI) and combined with jajarlegowo can increase rice productivity. This method is effective because the rice plants are watered according to their needs so that the growth becomes good. The method of irrigation automation is carried out using a water level control system adapted to the age of the rice plant. Water level sensors, irrigation actuators, and drainage actuators are installed in paddy fields to support the irrigation automation. In the application directly in the paddy fields owned by Indonesian farmers, this has not been done thoroughly. The main obstacle from the observation result of the research shows that automatic irrigation system technology has not shown any real difference compared to conventional irrigation. In addition, this automatic irrigation system should also be accompanied by human resources trained in its use and maintenance.</p> N. Gupta Encep Kamal Kamsa Hambari M. Rikja Hamdani Pera Maeda Ningsih Dewi Sartika Copyright (c) 2019 INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) 2022-06-25 2022-06-25 2 1 27 36 10.5281//zenodo.2641443 Evaluation of Drainage Channels on Residential Area <p>The incompatibility of construction of urban or residential drainage channels with design criteria is often found due to difficulties in designing drainage channels.&nbsp; designers often make design mistakes when designing drainage channels. This study aims to evaluate the drainage system and designs a drainage channel that can collect runoff discharge on Residential Area. The results of flood discharge obtained using the Gumbel method for the 10 and 25 year return periods are 298.78 mm and 370.38 mm. From the calculation of the channel capacity in the field and the discharge plan most of the existing channel capacity cannot accommodate the current planned discharge of 2.261 m<sup>3</sup>s<sup>-1</sup> for the primary channel and 1.824 m<sup>3</sup>s<sup>-1</sup> for the secondary channel. The current channel cannot accept runoff discharge during rain, so the channel rehabilitation plan is carried out by expanding and extracting the dimensions of the drainage channel.</p> O.T. Ikotun D. Sartika Copyright (c) 2019 INTERNATIONAL JOURNAL ENGINEERING AND APPLIED TECHNOLOGY (IJEAT) 2022-06-25 2022-06-25 2 1 38 49 10.5281//zenodo.2641481