Browsing by Author "Hare, Ram Hare"

Now showing 1 - 5 of 5

Aiming to achieve zero emissions from ships
(Marine Engineers Review (India), 2019-02) Hare, Ram Hare
The world is on the brink of collapse with increase in the carbon emission and melting polar ice caps. We are almost near extinction with the average temperature rise around 7⁰C till 2100. As mankind is driving towards future, there is more importance being given to green practices with changing government policies. Maritime sector has also developed various regulations and conventions to lower the emissions and new concept of “Zero Emissions”, was derived. Recent trends in shipping show a huge inclination towards stripping-off emissions to lowest values possible. We know that the standard fuel cycles are not much efficient even with the various improvisations made over. Fuel cells have proven to be efficient power sources over the last decade with maximum efficiency up to 82% which is almost twice of the standard engine cycles. There have been sincere efforts by automobile industries with hybrid vehicles coming into the picture, now it is time for hybrid vessels too. Vessels can be run using hydrogen power plants with an effective analysis of the total outcomes of using hydrogen as a fuel in terms of profits to the owner and also to the environment. Economic viability of any change is the most important consideration in the industry, inherent with all other requirements all standards and conventions can be abided which are mainly concerned to environment with almost least equipment onboard.
Alternate fuel
(National Conference on Energy, Environment and Sustainable Shipping (NCESS), 21-22 December 2020, 2020-12-22) Hare, Ram Hare
As the world moves towards greener solutions for reduction in pollution by any source, the transportation industry will be greatly affected and hence major changes are taking place throughout. From automobiles, logistics, aviation and each and every machine in the supply chain is looking to cut down the emissions. Shipping contributes to 3% of the world’s total manmade carbon emissions. Around the world, air pollution is causing serious health problems and premature death, and local air pollution will be subject to tougher regulations over the coming years. Reducing emissions to air and introducing new propulsion technologies are key challenges for the worldwide transport sector, including shipping. The world’s future fleet will have to rely on a broader range of fuels, propulsion solutions and energy efficiency measures. All alternative fuel options have benefits and challenges. This guidance paper provides an introduction to alternative fuels and technology solutions. It includes an overview of selected alternative ship fuels – LNG, LPG, methanol, biofuel and hydrogen – as well as emerging technologies such as batteries, fuel cell systems and wind-assisted propulsion. The objectives of the paper are to provide decision support for investment in ships for the upcoming period. The paper focuses on technical parameters and limitations without accounting for local market conditions, considerations and incentive schemes which may have a significant impact on competitiveness and the uptake of alternative fuels and technologies. Marine fuel currently contributes approximately 3 per cent to global man-made CO2 emissions. Most seagoing ships are still using heavy fuel oil (HFO) or marine gas oil (MGO), with a maximum sulphur limit of 3.5 per cent (mass) in force for HFO and 0.1 per cent (mass) for low- sulphur MGO. Looking at the future with the IMO 2020 low-sulphur standards and upcoming CO2 emission regulation regime in mind, the share of conventional oil-based ship fuels will drop and the share of alternative fuels will grow. Prerequisites for introducing a new fuel include availability of sufficient production and distribution facilities as well as an adequate bunkering infrastructure. In addition, new fuels in many cases require extensive on- board modifications and a reversal to a conventional system is complex and costly.
Application of artificial intelligence (AI) on maritime sector
(Marine Engineers Review (India), 2018-10) Hare, Ram Hare; Ekbote, Sourav
Artificial intelligence has already taken up most of the space we live in today. Devices like mobile phone, safety & various other types of systems have taken up AI to alleviate their performance level and a sense of predictability. The digital era has brought around so many innovations that we can’t imagine living without. The digitalization has also extended to so many professional fields. Similarly, life at sea is also taking a dive into today’s modern technology with availability of internet onboard process of carrying out operations under greater supervision has become easier and connectivity is brought at ease. As modern-day trends spike up in the market with the continuously growing energy industry, owners are employing new efficient ways to enhance systems onboard. Following are some recent developments and future aspects.
Blockchain technology in maritime domain
(Marine Engineers Review (India), 2020-04) Hare, Ram Hare; Ekbote, Sourav
Blockchain is a safer way to perform monetary transactions without any involvement of third parties in the process. Despite many technological advancements are constantly impacting just about every industry, the shipping industry relies heavily on the traditional methods. In todays world these methods are quite old fashioned and fail to prove efficient. Most shipping transactions involve a lot of documentation e.g. charter party agreements, sales contacts, bills of lading, etc. They pass through several hands as cargo makes its way from origin to its final destination and tracking of this paperwork would be a time-consuming task. In efforts to minimize these inefficient procedures, blockchain was introduced. Blockchain is a fundamental component of how the Bitcoin system works, and it has the potential to revolutionize shipping.
The triple zero positive appliance: exhaust gas thermo electric generator (TEG) for green environment
(Marine Engineers Review (India), 2022) Hare, Ram Hare; Ravichandra, P.
Exhaust/Flue gases from the main engine on board ship possess significant thermal energy. The energy, if recovered, can be utilized to generate substantial amount of power. Heat recovery by using a heat exchanger results in additional pressure drop and is not preferred. An alternate way is to analyse a vertically fitted Thermoelectric generator (TEG) in the exhaust pathway of a vessel for power generation. TEG’s work on the principle of Seebeck effect in which due to temperature gradient between two electrically conductive metals / alloys/ semiconductors, flow of electrons take place which generate electricity. The TEGs in conjunction with the main can be used at immediate machinery exhaust (Incinerators, boilers etc.) which will act as if two generators are acting in series (Thury system of connection) and additional output can be expected. The output power can be used to power low energy requirement applications such as electric control panels of a machinery, panels in engine control room (ECR) which will make it self-sustaining at running hours, various sensors which require micro/milli amperes of current and many other devices. The energy can also be stored in batteries for battery powered operations. This in turn will reduce the o/p demand of the generator by significant extent thus saving fuel for running the generator. This one-time investment in the installation of this system of electricity generation has minimal maintenance, zero emissions which makes its environment friendly which is the need of hour.