Studi Kinerja Fresh Water Generator Di Kapal AHTS PETEKA 5401

Fresh water is one of the primary needs on board. Shortage of fresh water on board, has a considerable risk, and to overcome the problem of lack of fresh water, commercial vessels are generally equipped with fresh water generators where the aircraft works with the process of evaporating seawater in the evaporator and seawater vapor is cooled with the way condensation in the distillation plane to produce fresh water. The fresh water genertaor parts are Evaporator, Condenser, Demister, Water ejector, Ejector Pump, and Destillate Pump. Then the Cause of Declining Freshwater Production in Fresh Water Generators is a decrease in fresh water production in fresh water generators. As for how to overcome so that the production of fresh water produced by fresh water generators does not decrease ie when the evaporator plate is cleaned, make sure the gasket on the plate must be in good condition, then cleaned from the crust attached to the plate, once every six months the nozzle and diffuser ( throwers) are removed and examined. And check the ejector pump for leaks and from corrosion such as impellers, casings, rings and shafts. In generating data the author uses descriptive research that is used to find the broadest possible knowledge of the object of research at a particular time. Descriptive research is research whose purpose is to explain or describe an event, condition, object whether a person, or everything related to variables that can be explained using either numbers or words. Keywords : Fresh Water Generator, Evaporator, Ejector Pump Air tawar merupakan salah satu kebutuhan primer di atas kapal. Kekurangan air tawar di atas kapal, mempunyai resiko yang cukup besar, dan untuk mengatasi masalah kekurangan air tawar, kapal-kapal niaga pada umumnya dilengkapi dengan fresh water generator dimana pesawat ini bekerja dengan proses menguapkan air laut di dalam evaporator dan uap air laut didinginkan dengan cara kondensasi di dalam pesawat destilasi sehingga menghasilkan air tawar. Bagian-bagian fresh water genertaor adalah Evaporator, Kondensor, Demister, Air ejektor, Pompa ejektor, dan Pompa destillate. Kemudian Penyebab Menurunnya Produksi Air Tawar Pada Fresh Water Generator adalah menurunnya produksi air tawar pada fresh water generator. Adapun cara mengatasi agar produksi air tawar yang di hasilakan fresh water generator tidak menurun yaitu pada saat plat evaporator dibersihkan, pastikan gasket pada plat harus dalam kondisi baik, kemudian dibersihkan dari kerak-kerak yang menempel pada plat, setiap enam bulan sekali nozzle dan difuser (penyembur) dilepas dan diperiksa. Dan periksa pompa ejektor dari kebocoran dan dari korosi seperti impeller, casing, ring, dan shaft. Dalam menghasilkan data penulis menggunakan penelitian deskriptif yang digunakan untuk menemukan pengetahuan yang seluas-luasnya terhadap objek penelitian pada suatu masa tertentu. Penelitian deskriptif adalah penelitian yang tujuannya untuk menjelaskan atau mendeskripsikan suatu peristiwa, keadaan, objek apakah orang, atau segala sesuatu yang terkait dengan variabel-variebel yang bisa dijelaskan baik menggunakan angka-angka maupun kata-kata. Kata Kunci : Fresh Water Generator, Evaporator, Pompa Ejektor

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MENJAGA KESTABILAN SUHU RUANG EVAPORATOR BERDAMPAK PADA HASIL PRODUKSI AIR TAWAR FRESH WATER GENERATOR

JURNAL SAINS DAN TEKNOLOGI MARITIM ◽

10.33556/jstm.v19i2.200 ◽

2019 ◽

Vol 19 (2) ◽

Author(s):

Ali Khamdila ◽

Santhi Wilastari ◽

Agus Saleh

Keyword(s):

Production Process ◽

Fresh Water ◽

Sea Water ◽

Water Volume ◽

Water Production ◽

Ejector Pump ◽

Air Ejector

Maintaining a Fresh Water Generator from the loss of vacuuming means getting the best fresh water production process. The balance of the heated substance and the heater measurement inside the evaporator could effect on the steam result or even could influence the steam process. There are many factors that could cause the loss or the decreasing of vacuuming when operating Fresh Water Generator, such as system leakage, the lack of sea water volume used for vacuuming, the balance of water ejector capability to maintain the steam volume inside Fresh Water Generator, the brine ejector capability to maintain the unused brine water and condension water being exhaust of Fresh Water Generator. Keywords: Condenser, Evaporator, Ejector, Ejector PumpMenjaga serta mempertahankan kondisi Fresh Water Generator dari kevakuman merupakan hal yang harus selalu diperhatikan secara baik,dengan tujuan untuk mendapatkan proses produksi air tawar secara optimal. Pengaturan keseimbangan antara media untuk memanaskan dan media untuk dipanaskan didalam ruang evaporator berdampak pada hasil uap yang diproduksi ataupun justru berpengaruh terhadap proses penguapan. Banyak faktor penyebab hilangnya ataupun turunnya kevakuman pada saat pengoperasian fresh water generator,seperti kebocoran pada sistem,kurangnya kapasitas volume air laut yang digunakan oleh ejector pump untuk proses kevakuman, tidak seimbangnya kemampuan air ejector menjaga jumlah uap yang ada di dalam ruang fresh water generator , kemampuan brine ejector menjaga jumlah air brine dan air kondensasi yang tidak tertampung diruang kondensor untuk di buang keluar dari ruang fresh water generator.Kata kunci : Kondensor, Evaporator, Ejector, Ejector Pump

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Advancement in the Technology of Solar Powered Liquid Desiccant Systems for Fresh Water Production from Atmospheric Humidity

International Review of Mechanical Engineering (IREME) ◽

10.15866/ireme.v11i3.10953 ◽

2017 ◽

Vol 11 (3) ◽

pp. 191

Author(s):

Sabah Kadhim Mahal ◽

Ahmad Jais Alimin

Keyword(s):

Fresh Water ◽

Water Production ◽

Liquid Desiccant ◽

Atmospheric Humidity ◽

Solar Powered

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Design and assessment of a new solar-based biomass gasification system for hydrogen, cooling, power and fresh water production utilizing rice husk biomass

Energy Conversion and Management ◽

10.1016/j.enconman.2021.114001 ◽

2021 ◽

Vol 236 ◽

pp. 114001

Author(s):

O. Siddiqui ◽

I. Dincer

Keyword(s):

Fresh Water ◽

Rice Husk ◽

Biomass Gasification ◽

Cooling Power ◽

Water Production ◽

Hydrogen Cooling

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Concentrated photovoltaic and thermal system application for fresh water production

Applied Thermal Engineering ◽

10.1016/j.applthermaleng.2020.115054 ◽

2020 ◽

Vol 171 ◽

pp. 115054

Author(s):

Muhsen Al-Hrari ◽

İlhan Ceylan ◽

Khaled Nakoa ◽

Alper Ergün

Keyword(s):

Fresh Water ◽

System Application ◽

Thermal System ◽

Water Production

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Generation Z: The Purchase Intention of Green Skin Care Products

11th GLOBAL CONFERENCE ON BUSINESS AND SOCIAL SCIENCES - Global Conference on Business and Social Sciences Proceeding ◽

10.35609/gcbssproceeding.2021.12(83) ◽

2021 ◽

Vol 12 (1) ◽

pp. 83-83

Author(s):

Ying San, Lim ◽

Phing Cai ◽

Andy Hong ◽

Tuan Hock, Ng ◽

Ying Zhee, Lim

Keyword(s):

Purchase Intention ◽

Theory Of Planned Behaviour ◽

Good Condition ◽

Skin Care ◽

The Body ◽

Growing Up ◽

Care Industry ◽

Generation Z ◽

Skin Care Products ◽

The Way

The cosmetics and toiletry industry has growing up very fast. In 2016, the total global revenue cosmetics industry amounted to USD$444 billion. According to Lee, Goh, & Noor ( 2019), the skincare products dominated the cosmetics and toiletry market with a market value of approximately USD$ 120 billion. Between 2012 and 2019, the global skincare market expanded by 41.8 percent, and by 2025, it is expected to be worth $189 billion (Ledesma, 2020). The skin is the largest organ in the body, hence, many people will find ways to protect it, one of the way people are using to protect the skin is to apply any supplement on skin to keep the good condition of the skin. However, according to Cunningham (2014), the used of chemical items in the cosmetic skin care industry is extremely unregulated. For example, Parabens that cause breast cancer are found in cosmetics. The chemical used in the skin care products had rise the attention of the users to start to pay attention on the ingredient of the skin care products. One of the way people are using in order to avoid the harmful chemical in skin care products is to to choose skin care with natural ingredient (Espitia, 2020), this happend especially among the younger consumers (Boon et al., 2020; Hsu et al.,2017). The green skincare industry is growing rapidly. Green skin care, according to previous studies (Fauzi & Hashim, 2015; Hsu et al., 2017), is any skin care products which can preserve or enhance the natural environment by conserving energy or resources and decreasing or eliminating the usage of harmful agents, pollution, and waste. Studies showed there is an increasing in the consumption of green skincare products and toiletries by 45%, from a peak of RM 1.6 billion (in 1998) to RM 2.2 billion (in 2010), with sales estimated to exceed $1.1 billion in 2010 among young people (Boon et al., 2020). Keywords: Green Skin Care, Generation Z, Theory Of Planned Behaviour

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Effect of wind on performance of double slope solar desalination still for fresh water production.

Sustainability Agri Food and Environmental Research ◽

10.7770/safer-v10n1-art2541 ◽

2021 ◽

Vol 10 (1) ◽

Author(s):

Y. Robinson ◽

C.K. Sivakumar

Keyword(s):

Wind Speed ◽

Fresh Water ◽

Water Production ◽

Solar Desalination

This study aimed at investigating the effect of wind for double slope solar desalination still. Two double slope solar stills were designed, constructed and experimentally tested their performance depending up on the wind. One experiment carried out with a wind speed of 4m/s and other 3m/s. The results show that the variation in wind affects the fresh water production. Double slope solar desalination still with wind speed 4m/s gives 17.8% higher productivity compare to 3m/s. Keywords: wind, freshwater production, desalination.

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Diffusion Driven Desalination for Simultaneous Fresh Water Production and Desulfurization

Journal of Thermal Science and Engineering Applications ◽

10.1115/1.4002944 ◽

2010 ◽

Vol 2 (3) ◽

Cited By ~ 2

Author(s):

Jameel R. Khan ◽

James F. Klausner ◽

Donald P. Ziegler ◽

Srinivas S. Garimella

Keyword(s):

Fresh Water ◽

Fluid Transport ◽

Transport Model ◽

Waste Heat ◽

Feed Water ◽

Low Grade ◽

Water Production ◽

Air Stream ◽

Mass Transport Model ◽

Air Streams

The diffusion driven desalination (DDD) process has been previously introduced as a process for distilling water using low-grade waste heat. Here, a configuration of the DDD process is introduced for simultaneously distilling water and scrubbing sulfur dioxide (SO2) out of heated air streams, which is also known as flue gas desulfurization (FGD). This novel DDD/FGD process utilizes the low-grade waste heat carried in industrial discharge air streams. There are many applications, where the industrial air discharge also contains SO2, and in order to utilize the waste heat for the DDD process, the SO2 must be scrubbed out of the air stream. The two major components of the DDD process are the diffusion tower and the direct contact condenser. In the present work, a thermal fluid transport model for the DDD/FGD process, that includes SO2 scrubbing, is developed. It is an extension of the heat and mass transport model previously reported for the DDD process. An existing laboratory scale DDD facility was modified and tested with SO2 in the air stream and with seawater as the feed water to the diffusion tower. The experimental investigation has been completed to evaluate the fresh water production and SO2 scrubbing potential for the DDD/FGD process. The experimental results compare favorably with the model predictions. Chemical analysis on the condenser water demonstrates the capability of the DDD/FGD process to produce high quality fresh water using seawater as the input feed water to the process.

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Comparative assessment of Placental Weight and Fetal Outcome in Normal and Anaemic Mothers during Intranatal Period in Selected Hospitals in India

Journal of Pharmaceutical Research International ◽

10.9734/jpri/2021/v33i54b33767 ◽

2021 ◽

pp. 72-80

Author(s):

. Lalhriatpuii ◽

Bali Thool

Keyword(s):

Birth Weight ◽

Negative Impact ◽

Good Condition ◽

Sampling Technique ◽

Fetal Outcome ◽

Placental Weight ◽

Descriptive Research ◽

Significant Difference ◽

Average Condition ◽

Significant Health

Background: Despite the fact that anaemia during pregnancy is the most prevalent and significant health problem in impoverished nations, anaemia has a negative impact on the placenta and fetal development. The placenta is a growing organ that provides nutrition, oxygen, and eliminates excretory wastes for the fetus while also acting as a protective barrier throughout pregnancy. If the placenta is compromised by anaemia, it has a negative impact on the foetus's growth. Methods and Materials: Comparative descriptive research design was used, 60 subjects (30 normal mothers and 30 anaemic mothers) were allotted and in this study the purposive sampling technique was used to select the sample. The aim of the study was to compare the placental weight and fetal outcome in normal mothers and anaemic mothers. The objectives of the study were (i) To assess the placental weight in normal mothers and anaemic mothers. (ii)To assess the fetal outcome in normal mothers and anaemic mothers. (iii)To compare the placental weight and fetal outcome in normal and anaemic mothers. Results: The result of the study shows that 93% normal mothers had average condition of placental weight, 2% normal mothers had good condition of placental weight while in anaemic mothers it was found that 30 percent had average condition of placental weight, 73.3% normal mothers had average condition of fetal outcome, 26.7% normal mothers had good condition of fetal outcome while in anaemic mothers it was found that 93.3% percent had average condition of fetal outcome, 06.7% had good condition of fetal outcome. Conclusion: The study concludes that the comparison between placental weight and birth weight of babies shows significant difference with a positive relationship in both the groups. This means as the placental weight increases the birth weight also increases and vice-versa.

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