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Fianti Fianti
Prodi Pendidikan Fisika, Pascasarjana Universitas Negeri semarang
Environmental Science

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PENGARUH RADIASI MATAHARI PADA AIR LAUT TERHADAP DAYA YANG DIHASILKAN SEBAGAI SUMBER ENERGI ALTERNATIF Eva Meutia; Upik Nurbaiti; Fianti Fianti
EnviroScienteae Vol 17, No 1 (2021): ENVIROSCIENTEAE VOLUME 17 NOMOR 1, APRIL 2021
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v17i1.11350

Abstract

Indonesia with a country that has a tropical climate and a very large intensity of solar radiation so that it can be developed into an alternative energy source by utilizing sea air. The purpose of this research is whether there is an effect of solar radiation on sea air on the power it produces as an alternative energy. Seawater as much as 300ml is put into a square glass container and paired with a series of Cu - Zn, Cu - Al, and Al - CuZn electrode plates with a cross-sectional area of 15cm2 of each electrode and connected to a red LED light to see how much power is generated by sea water after being exposed to solar radiation at different temperatures and times. Data obtained at the highest temperature of 33°C and the duration of exposure to solar radiation for 60 minutes in the 6th experiment with a variation of Cu - Zn electrodes with an electric power of 1,44 J/s, the lights are brightly lit, Cu - Al with electric power of 1,22 J/s of dim light, and Al - CuZn obtained electric power of 0,65 J/s. So it is concluded that the longer the sea water is exposed to solar radiation, the higher the temperature is due to the more heat stored in sea water. The conclusion was drawn that the higher the sea water temperature, the electric power produced, the higher the electric power generated and the lights can light up brightly at certain electrodes.
Pengaruh Warna Dan Bentuk Lampu Terhadap Tingkat Kenyamanan Manusia Di Ruang Tidur Anisa Furtakhul Janah; Upik Nurbaiti; Fianti Fianti
EnviroScienteae Vol 16, No 1 (2020): EnviroScienteae Volume 16 Nomor 1, April 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v16i1.8994

Abstract

The purpose of this study was to study the effect of various light colors and shape on light intensity and visual contentment levels. This research was experimental research consisting of two variables consisting of light colors with four colors: red, yellow, green, and blue, and three different lamp shapes: round, spiral, and essential. The lamp used for color variations had a power of 2.5 watts, while the lamp used for variations in shape had a power of 5 watts. The parameters studied in this study were the lighting and the light intensity produced. The data analysis technique used in this study contained the value of light intensity and the percentage of visual contentment levels obtained from the questionnaire results. The results showed that the yellow light had the highest light intensity of 40 CDs, this result was supported by a questionnaire that showed the contentment level of respondents in the bedroom using a yellow light was 70%. Round lights have the highest intensity because they did not produce a luminous effect, thus producing very little lamp energy waste.
Co-Authors Anisa Furtakhul Janah Eva Meutia Upik Nurbaiti