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All Journal Malikussaleh Journal of Mechanical Science Technology Al-MIKRAJ: Jurnal studi Islam dan Humaniora
Nugraha, Andra
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Automotive Engineering Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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EVALUASI UNJUK KERJA ALAT PENUKAR KALOR JENIS CONCENTRIC DENGAN VARIASI KECEPATAN ALIRAN FLUIDA KERJA Nugraha, Andra; Asnawi, A
Malikussaleh Journal of Mechanical Science and Technology Vol. 7 No. 2 (2023): Malikussaleh Journal of Mechanical Science and Technology
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v7i2.15459

Abstract

Heat transfer is a science of heat transfer energy that is indispensable for analyzing the heat transfer process. One type of heat exchanger that is widely used is the Concentric heat exchanger. From the explanation of the theory that the influence of increasing the flow velocity of the cold fluid will affect the increase in the value of the performance of the heat exchanger.  Therefore, this influence will provide an increase in heat transfer performance, especially at the heat transfer rate, (Q), heat transfer coefficient (U), and also heat transfer effectiveness (ε). By increasing the variation in the flow velocity of cold fluid by setting the temperature of the hot fluid (Thi) at 45°C and the temperature of the cold fluid (Tci) at 27°C and also made constant up to the highest velocity variation in the cold fluid. From the most minimum performance value at a cold fluid flow rate of 0.067 m/s to 0.134 m/s  in the concentric heat exchanger type, performance values were obtained including the heat transfer rate (Q) from 714.09 Watts to 1111.51 Watts on the heat side and 619.89 Watts to 901.83 Watts on the cold side, for the heat transfer coefficient (U) a value of 337.90 W / m2 was obtained. C to 405.38 W/m2. C , and for the effectiveness (ε) which was originally 29% to 43%.
Penerapan Smart Governance Melalui Aplikasi Siganteng di Perumda Tirta Benteng Kota Tangerang Hilwa, Siti; Sundari, Wiga; Almira, Dilla; nugraha, andra
AL-MIKRAJ Jurnal Studi Islam dan Humaniora (E-ISSN 2745-4584) Vol 5 No 2 (2025): Al-Mikraj, Jurnal Studi Islam dan Humaniora
Publisher : Pascasarjana Institut Agama Islam Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/almikraj.v5i2.6970

Abstract

Digitalization allows people to process and access information services with others. The existence of policies can support the implementation of Smart Governance because digital progress helps people utilize public services digitally, such as that done by PDAM Kota Tangerang by using the Siganteng application. This study uses a qualitative method that uses observation and interviews to collect data on how new technology can improve the quality of web-based public services at Perumda Tirta Benteng Kota Tangerang. The target informants are the community and also the public relations staff of the call center at Perumda Tirta Benteng Kota Tangerang. The results of the study show that the Siganteng application is an innovative service because it makes online complaints easier.
Penerapan Smart Governance Melalui Aplikasi Siganteng di Perumda Tirta Benteng Kota Tangerang Hilwa, Siti; Sundari, Wiga; Almira, Dilla; nugraha, andra
AL-MIKRAJ Jurnal Studi Islam dan Humaniora Vol. 5 No. 2 (2025): Al-Mikraj, Jurnal Studi Islam dan Humaniora
Publisher : Pascasarjana Institut Agama Islam Sunan Giri Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/almikraj.v5i2.6970

Abstract

Digitalization allows people to process and access information services with others. The existence of policies can support the implementation of Smart Governance because digital progress helps people utilize public services digitally, such as that done by PDAM Kota Tangerang by using the Siganteng application. This study uses a qualitative method that uses observation and interviews to collect data on how new technology can improve the quality of web-based public services at Perumda Tirta Benteng Kota Tangerang. The target informants are the community and also the public relations staff of the call center at Perumda Tirta Benteng Kota Tangerang. The results of the study show that the Siganteng application is an innovative service because it makes online complaints easier.
Co-Authors Almira, Dilla Asnawi Hilwa, Siti Sundari, Wiga